Article: 98195 of rec.radio.amateur.homebrew From: Bill Turner Subject: Re: RFID Transmitters,RFID and Environmental Issues, Wal-Mart and RFID: A Case Study Date: Mon, 31 Jul 2006 21:01:19 -0700 Message-ID: References: <1154116025.469795.180480@s13g2000cwa.googlegroups.com> <1fppc25412oflaivage7ls7v1r1vn56bum@4ax.com> ORIGINAL MESSAGE: On Mon, 31 Jul 2006 18:10:08 GMT, Me wrote: >WallMart has to comply with the FCC Rules and Regulations, just like >every other company in the USA. ------------ REPLY SEPARATOR ------------ Ok Pollyana, let me spell it out for you: 1. You will begin transmitting a carrier on the RFID frequency as you previously stated. 2. WalMart will have their golf and drinking buddies in the FCC track you down. If necessary, WalMart will have a few senators and representatives nudge the FCC a little. In this case, "nudge" means "jump", as in "how high?". 3. The folks at the FCC will determine that you are causing deliberate interference, a very serious violation in their opinion. 4. Your license will be yanked. 5. You will take a second and third job to pay for lawyers to fight the bastards. You can't possibly earn enough so you go in debt to them as well. 6. You will lose anyway and now you will be in debt up to your ears. 7. You will find that being in debt to lawyers is especially not fun. 8. You will wish you had never heard of RFID. 9. You will wish you had listened to Uncle Bill when you had the chance. And that's the truth. Bill, W6WRT Article: 98196 of rec.radio.amateur.homebrew From: "laura halliday" Subject: Re: Microstrip dimension Date: 31 Jul 2006 21:34:58 -0700 Message-ID: <1154406898.059387.167330@75g2000cwc.googlegroups.com> References: Scott wrote: > Question: Does anybody know how to calculate the width of a 50 Ohm > microstrip line on Arlon PTFE circuit board (Type GX-0065-45-11). It is > 0.0065" thick, double sided and has a k=2.45. Looking at my chart, it > looks like I leave the bottom as complete copper groundplane and take > off all copper around stripline on the top side of the board and leave > the stripline as 0.0195" wide? That doesn't sound very wide!! > > Scott > N0EDV It isn't very wide at all. I've built stuff on 15 mil 5880, twice as thick as your paper-thin material. And it was still a handful. What are you building? Why so thin? Laura Halliday VE7LDH "That's a totally illegal, Grid: CN89mg madcap scheme. I like it!" ICBM: 49 16.05 N 122 56.92 W - H. Pearce Article: 98197 of rec.radio.amateur.homebrew Date: Tue, 01 Aug 2006 11:08:36 +0000 From: Scott Subject: Re: Microstrip dimension References: <392dnQR_kepFL1PZnZ2dnUVZ_rednZ2d@web-ster.com> Message-ID: Nope...the stuff I have IS paper thin. Very flexible. Bought it to use on upper UHF and into the microwaves. I didn't measure it with a micrometer, but I will do that later and report back... Scott Tim Wescott wrote: > Scott wrote: > >> Question: Does anybody know how to calculate the width of a 50 Ohm >> microstrip line on Arlon PTFE circuit board (Type GX-0065-45-11). It >> is 0.0065" thick, double sided and has a k=2.45. Looking at my chart, >> it looks like I leave the bottom as complete copper groundplane and >> take off all copper around stripline on the top side of the board and >> leave the stripline as 0.0195" wide? That doesn't sound very wide!! >> >> Scott >> N0EDV > > > .0065 is paper thin, possibly less. > > 1/16 inch is 0.063 -- did you slip a digit? > Article: 98198 of rec.radio.amateur.homebrew From: skavanagh72nospam@yahoo.ca Subject: Re: Microstrip dimension Date: 1 Aug 2006 04:21:30 -0700 Message-ID: <1154431290.193684.98340@m73g2000cwd.googlegroups.com> References: Scott wrote: > Question: Does anybody know how to calculate the width of a 50 Ohm > microstrip line Scott: There are lots of computer programs around that will do the calculation for you. MWI.EXE is one....see http://www.rogerscorporation.com/mwu/mwi_java/mwiform.htm for download. You may also find the WA1MBA email list useful for questions like this (see www.wa1mba.org ) 73, Steve VE3SMA Article: 98199 of rec.radio.amateur.homebrew Date: Tue, 01 Aug 2006 11:23:34 +0000 From: Scott Subject: Re: Microstrip dimension References: <1154406898.059387.167330@75g2000cwc.googlegroups.com> Message-ID: The reason I bought it was that there was a whole bunch of it available at the Central States VHF Society conference this past weekend. They did have some slightly thicker stuff and maybe I should've bought some of that as well. Oh well, I'm stuck with this, so I'll have to try to use it...it's for a homebrew 902 beacon using a few MAR-4 devices. I will have to measure the lead width on these devices, but they might just be about the same as my calculated stripline width of 0.0195". This would be a good thing, but I agree, it may be a bit challenging to make a strip that narrow on the board (a magnifying lens and a very sharp scalpel!).... Scott laura halliday wrote: > Scott wrote: > > >>Question: Does anybody know how to calculate the width of a 50 Ohm >>microstrip line on Arlon PTFE circuit board (Type GX-0065-45-11). It is >>0.0065" thick, double sided and has a k=2.45. Looking at my chart, it >>looks like I leave the bottom as complete copper groundplane and take >>off all copper around stripline on the top side of the board and leave >>the stripline as 0.0195" wide? That doesn't sound very wide!! >> >>Scott >>N0EDV > > > It isn't very wide at all. > > I've built stuff on 15 mil 5880, twice as thick as your > paper-thin material. And it was still a handful. > > What are you building? Why so thin? > > Laura Halliday VE7LDH "That's a totally illegal, > Grid: CN89mg madcap scheme. I like it!" > ICBM: 49 16.05 N 122 56.92 W - H. Pearce > Article: 98200 of rec.radio.amateur.homebrew Date: Tue, 01 Aug 2006 11:24:39 +0000 From: Scott Subject: Re: Microstrip dimension References: <1154431290.193684.98340@m73g2000cwd.googlegroups.com> Message-ID: Thanks for the tip! I'll check them out... Scott skavanagh72nospam@yahoo.ca wrote: > Scott wrote: > >>Question: Does anybody know how to calculate the width of a 50 Ohm >>microstrip line > > > Scott: > > There are lots of computer programs around that will do the calculation > for you. MWI.EXE is one....see > http://www.rogerscorporation.com/mwu/mwi_java/mwiform.htm for download. > You may also find the WA1MBA email list useful for questions like this > (see www.wa1mba.org ) > > 73, > Steve VE3SMA > Article: 98201 of rec.radio.amateur.homebrew From: w8ji@akorn.net Subject: Re: Class C amps saturating? Date: 1 Aug 2006 04:43:41 -0700 Message-ID: <1154432621.871215.91970@p79g2000cwp.googlegroups.com> References: <1152683914.666244.144780@b28g2000cwb.googlegroups.com> WSQT wrote: > This is what is meant by "Class F." A Class F amplifier has traps > tuned to various harmonics to allow the use of a longer conduction > angle and/or square wave drive with high efficiency and excellent > modulation characteristics. Class F, class X, class Y. They are all recent "names" hung on what are really just class C amplifiers. I can do the exactly the same thing without a so called "trap" so long as the output device sees a high impedance at the third harmonic or better yet at all off harmonics. That isn't a trap anyway, it is a resonator. The function is to provide a high impedance at the third harmonic so the waveform slope is steep. It allows the output device to go through the transitional state where it is dissipating maximum power very fast. The goal is NOT to allow a longer conduction angle. The goal is to have the output device either on or off and spend less time in the high dissipation area where device resistance is neither very low or very high. The ideal duty cycle is 50%, with half time totally off and half time in saturation. This is why a very low mu trode with tons of negative bias worked so well for RCA. The grid and anode 3rd harmonic resonators allowed the grid and anode to see a very high impedance at the third harmonic, and this sped the transition time up. 73 Tom Article: 98202 of rec.radio.amateur.homebrew From: "Reg Edwards" References: <1152683914.666244.144780@b28g2000cwb.googlegroups.com> <12b996ni52vq167@corp.supernews.com> <1153706423.121439.219690@m73g2000cwd.googlegroups.com> <1154219566.980885.120930@m79g2000cwm.googlegroups.com> <1154432621.871215.91970@p79g2000cwp.googlegroups.com> Subject: Re: Class C amps saturating? Date: Tue, 1 Aug 2006 14:49:02 +0100 Message-ID: Tom says, > The ideal duty cycle is 50%, with half time totally off and half time > in saturation. ===================================== But 50% off and 50% on corresponds to Class-B bias conditions. This is inconsistent with "tons of negative bias". All that's required is a plate load which allows a square-wave plate voltage waveform during the "on" period of the operating cycle. (A very wide bandpass filter circuit configuration sounds appropriate). Subject to this condition, a less than 50-50% operating cycle probably does provide, somwhere, maximum efficiency. I like your lumping together of Class-C, F, X, Y amplifiers. ---- Reg. Article: 98203 of rec.radio.amateur.homebrew From: "laura halliday" Subject: Re: Microstrip dimension Date: 1 Aug 2006 08:23:06 -0700 Message-ID: <1154445786.277532.32920@b28g2000cwb.googlegroups.com> References: Scott wrote: > The reason I bought it was that there was a whole bunch of it available > at the Central States VHF Society conference this past weekend. They > did have some slightly thicker stuff and maybe I should've bought some > of that as well. Oh well, I'm stuck with this, so I'll have to try to > use it...it's for a homebrew 902 beacon using a few MAR-4 devices. I > will have to measure the lead width on these devices, but they might > just be about the same as my calculated stripline width of 0.0195". > This would be a good thing, but I agree, it may be a bit challenging to > make a strip that narrow on the board (a magnifying lens and a very > sharp scalpel!).... I know you already have the material, but for such a low frequency and non-critical application I'd use plain old 1/16" G-10 pc board. YMMV. Mini-Circuits have an excellent on-line catalogue (http://www.minicircuits.com), and the lead width of a MAR-4 is indeed .02 inches. This seems small, but I'm at work and all my MMICs are at home... :-) Laura Halliday VE7LDH "That's a totally illegal, Grid: CN89mg madcap scheme. I like it!" ICBM: 49 16.05 N 122 56.92 W - H. Pearce Article: 98204 of rec.radio.amateur.homebrew From: Roy Lewallen Subject: Re: Microstrip dimension Date: Tue, 01 Aug 2006 10:47:01 -0700 Message-ID: <12cv4so30fv7d14@corp.supernews.com> References: If the dielectric material is 6.5 mils thick and the copper is very thin, the width needs to be 18.7 mils. If the substrate material is 0.0065 inches thick and the copper is "one ounce" (1.4 mils thick), the width needs to be 17.3 mils. If the total thickness is 6.5 mils, and that thickness includes top and bottom layers of "one ounce" copper (leaving 3.7 mils of dielectric), the thickness needs to be 9.5 mils. Good luck! Roy Lewallen, W7EL Scott wrote: > Question: Does anybody know how to calculate the width of a 50 Ohm > microstrip line on Arlon PTFE circuit board (Type GX-0065-45-11). It is > 0.0065" thick, double sided and has a k=2.45. Looking at my chart, it > looks like I leave the bottom as complete copper groundplane and take > off all copper around stripline on the top side of the board and leave > the stripline as 0.0195" wide? That doesn't sound very wide!! > > Scott > N0EDV Article: 98205 of rec.radio.amateur.homebrew From: Me Subject: Re: RFID Transmitters,RFID and Environmental Issues, Wal-Mart and RFID: A Case Study References: <1154116025.469795.180480@s13g2000cwa.googlegroups.com> <1fppc25412oflaivage7ls7v1r1vn56bum@4ax.com> Message-ID: Date: Tue, 01 Aug 2006 18:31:25 GMT In article , Bill Turner wrote: > ------------ REPLY SEPARATOR ------------ > > Ok Pollyana, let me spell it out for you: > > 1. You will begin transmitting a carrier on the RFID frequency as you > previously stated. > > 2. WalMart will have their golf and drinking buddies in the FCC track > you down. If necessary, WalMart will have a few senators and > representatives nudge the FCC a little. In this case, "nudge" means > "jump", as in "how high?". > > 3. The folks at the FCC will determine that you are causing deliberate > interference, a very serious violation in their opinion. > > 4. Your license will be yanked. > > 5. You will take a second and third job to pay for lawyers to fight > the bastards. You can't possibly earn enough so you go in debt to them > as well. > > 6. You will lose anyway and now you will be in debt up to your ears. > > 7. You will find that being in debt to lawyers is especially not fun. > > 8. You will wish you had never heard of RFID. > > 9. You will wish you had listened to Uncle Bill when you had the > chance. > > And that's the truth. > > Bill, W6WRT None of the above, could even happen, UNLESS the CongressCritters passed a Statute and it was signed by the President, to have the FCC CHANGE it's Rules on Part15 Devices, which by the way would take a MAJOR amount of time, as all these Rule Changes would be subject to NPRM Requirements of Part2 and the Federal CFR Publication Process. Your senerio is BULLSHIT, and you wouldn't know the "Truth" if it bit you on your Prompus ASS. Ok SmartGuy, can you SHOW anywhere in FCC Records or Documents, where the Commission acted in violation of it's own PUBLISHED Rules, in ANY way similar to your above, BULLSHIT Senerio? No? Really, Hmmmm, wonder why that is? Must be your just full of it........ and just for your information, Field Operations doesn't work that way... Investigations don't happen, like your dillusional senerio..... Any good Communications Lawyer would blow the FCC out of the water, should they act contrary to there own PUBLISHED Rules, in any Federal District Court in the Land, should it ever get that far, and the FCC Legal Counsel knows that, and would never allow the Commission to get themselves in that situation, in the first place....... Where do you come up with this stuff..... Nightmares R US...... Me Article: 98206 of rec.radio.amateur.homebrew From: dplatt@radagast.org (Dave Platt) Subject: Re: RFID Transmitters,RFID and Environmental Issues, Wal-Mart and RFID: A Case Study Date: Tue, 01 Aug 2006 19:14:02 -0000 Message-ID: <12cv9vqf2bs32d6@corp.supernews.com> References: <1154116025.469795.180480@s13g2000cwa.googlegroups.com> In article , Me wrote: #snip# >In article , > Bill Turner wrote: #snip# rather scary scenario >> ------------ REPLY SEPARATOR ------------ >> >> Ok Pollyana, let me spell it out for you: >> >> 1. You will begin transmitting a carrier on the RFID frequency as you >> previously stated. >> >> 2. WalMart will have their golf and drinking buddies in the FCC track >> you down. If necessary, WalMart will have a few senators and >> representatives nudge the FCC a little. In this case, "nudge" means >> "jump", as in "how high?". >> >> 3. The folks at the FCC will determine that you are causing deliberate >> interference, a very serious violation in their opinion. >None of the above, could even happen, UNLESS the CongressCritters >passed a Statute and it was signed by the President, to have the FCC >CHANGE it's Rules on Part15 Devices, which by the way would take a MAJOR >amount of time, as all these Rule Changes would be subject to NPRM >Requirements of Part2 and the Federal CFR Publication Process. > >Your senerio is BULLSHIT, and you wouldn't know the "Truth" if it >bit you on your Prompus ASS. > >Ok SmartGuy, can you SHOW anywhere in FCC Records or Documents, where >the Commission acted in violation of it's own PUBLISHED Rules, in ANY >way similar to your above, BULLSHIT Senerio? Well, I read through the ARRL's FCC Rulebook last night, looking at their definitions concerning interference and use of frequencies. The FCC Part 97 regulations never use the word "deliberate" with regard to interference at all! They use the words "willfully or maliciously", which are similar but not quite the same. I think Bill's scenario (which assumes a significant amount of political collusion) is somewhat overblown, at least to the extent that I can't see any evidence in the records that any case such as he suggests has ever actually been prosecuted by the FCC. On the other hand, this fact doesn't mean that an amateur operation who deliberately set out to knock out Wal-Mart's Part 15 system would not be subject to (legitimate) discipline under the current FCC rules. As I see it, there are several issues here. One issue is that of "who has authorization to use these frequencies, under what conditions, for what purposes, with what protections?". On that basis, the use of (e.g.) certain 2.4-gig frequencies by an amateur radio operator, for legitimate amateur-radio communications purposes "within the rules", certainly trumps any Part 15 applications. The ham is not, however, allowed to just run wild on the airways. The ham must comply with the FCC rules. Among the rules which appear relevant in this case: §97.101 (d) No amateur operator shall willfully or maliciously interfere with or cause interference to any radio communication or signal. This is clearly a question of intent, not of effect. If your intent in transmitting is to interfere with "any radio communication" - if you're transmitting only for the purpose of jamming someone - then you're breaking the rules and can be disciplined. On the other hand, if the interference is a side effect of your otherwise-legitimate transmissions on a band for which you have primary privileges, and the interfered-with party is a Part 15 user who "must accept any interference", then as far as I can see you're not obligated to either shut down or take action to mitigate the interference. 97.313 (a) An amateur station must use the minimum transmitter power necessary to carry out the desired communications. Simply blasting away with 1500 watts to reach somebody across town wouldn't be reasonable. On the other hand, 1500 watts in an EME setup would probably be reasonable, as long as the antenna system and beam shape don't expose anyone to excessively high levels of RF. So, I think it's likely to come down to the ham's being able to show that his/her transmissions are part of a legitimate process of communication with one or more other hams (i.e. that they are not _intended_ to cause interference) and are otherwise in compliance with the FCC regs and good amateur-radio and engineering practices. If this is the case, the FCC is unlikely to be able to show good cause to take action against the ham. On the other hand, if a ham is simply keying up and transmitting a high-power carrier, for no reason tied to any actual legitimate amateur-radio purpose (communication, technical study, experimentation, etc.), then the question of the ham's intent in doing so would arise, and the ham might be charged with "wilfully or maliciously" interfering with other radio communications. Now, the FCC *could* choose to invoke 97.27, which allows them to modify a station grant and place restrictions on it (e.g. limits on operating hours, frequencies, modes, transmitter power). Such modification-of-grant rules seem to have been put into place back in the early years of television, in order to enable the FCC to restrict some TVI-causing ham stations during prime television-watching hours. The rule requires that the FCC determine : (1) That such action will promote the public interest, convenience, and necessity; or (2) That such action will promote fuller compliance with the provisions of the Communications Act of 1934, as amended, or of any treaty ratified by the United States. The FCC has to make determination, issue a modification order in writing, and give the ham 30 days to protest the modification, before the terms of the modification can take effect. It'd be interesting to see whether the FCC were willing to go on record (in public and in writing) in an assertion that unclogging Wal-Mart's Part 15 RFID system was necessary to promote the *public* interest, convenience, and/or necessity. -- Dave Platt AE6EO Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! Article: 98207 of rec.radio.amateur.homebrew From: Bill Turner Subject: Re: RFID Transmitters,RFID and Environmental Issues, Wal-Mart and RFID: A Case Study Date: Tue, 01 Aug 2006 14:46:39 -0700 Message-ID: <6aivc2l4of4irkt8isuvluv9ju1kiv0eta@4ax.com> References: <1154116025.469795.180480@s13g2000cwa.googlegroups.com> <1fppc25412oflaivage7ls7v1r1vn56bum@4ax.com> ORIGINAL MESSAGE: On Tue, 01 Aug 2006 18:31:25 GMT, Me wrote: >Ok SmartGuy, can you SHOW anywhere in FCC Records or Documents, where >the Commission acted in violation of it's own PUBLISHED Rules, in ANY >way similar to your above, BULLSHIT Senerio? > ------------ REPLY SEPARATOR ------------ Certainly I can. And you can too if you like. For example, try getting the FCC to shut down a 500 KV power transmission line because it's interfering with your ham radio communications. This has been tried and the FCC's response is "That would not be in the public interest". This actually happened. A clear violation of the rules, but he who makes the rules can also violate the rules. And the word is spelled "scenario", DumbGuy. Bill, W6WRT Article: 98208 of rec.radio.amateur.homebrew From: Roy Lewallen Subject: Re: Microstrip dimension Date: Tue, 01 Aug 2006 15:33:35 -0700 Message-ID: <12cvlm29e7g9c49@corp.supernews.com> References: <12cv4so30fv7d14@corp.supernews.com> Correction: The last sentence should end ". . . the width needs to be 9.5 mils." Roy Lewallen, W7EL Roy Lewallen wrote: > If the dielectric material is 6.5 mils thick and the copper is very > thin, the width needs to be 18.7 mils. If the substrate material is > 0.0065 inches thick and the copper is "one ounce" (1.4 mils thick), the > width needs to be 17.3 mils. If the total thickness is 6.5 mils, and > that thickness includes top and bottom layers of "one ounce" copper > (leaving 3.7 mils of dielectric), the thickness needs to be 9.5 mils. Article: 98209 of rec.radio.amateur.homebrew From: Bill Turner Subject: Schematic drawing software? Date: Tue, 01 Aug 2006 20:16:20 -0700 Message-ID: Some years ago I used Visio at work for schematic drawing, but I no longer have access to it. Can someone recommend a program to use at home for creating schematic drawings? I don't care if it is payware as long as the price is reasonable. I found a couple with Google which were several hundred bucks, a bit much for my needs. Do recent Visio releases still have schematic drawing capability? I went to the Microsoft website and they advertise all kinds of drawing capabilities, but not schematics. Thanks in advance, Bill, W6WRT Article: 98210 of rec.radio.amateur.homebrew Date: Wed, 02 Aug 2006 20:54:02 +0800 From: Richard Hosking Subject: Re: Schematic drawing software? References: <44D05382.5231D483@earthlink.net> Message-ID: <44d0a06a$0$1483$5a62ac22@per-qv1-newsreader-01.iinet.net.au> Try Kicad Its a capable OSS program that will run on Linux or Windows (I use it on Linux - havent tried M$) has a project manager to allow PCB drafting from the schematic Richard Michael A. Terrell wrote: > Bill Turner wrote: > >>Some years ago I used Visio at work for schematic drawing, but I no >>longer have access to it. Can someone recommend a program to use at >>home for creating schematic drawings? I don't care if it is payware as >>long as the price is reasonable. I found a couple with Google which >>were several hundred bucks, a bit much for my needs. >> >>Do recent Visio releases still have schematic drawing capability? I >>went to the Microsoft website and they advertise all kinds of drawing >>capabilities, but not schematics. >> >>Thanks in advance, >> >>Bill, W6WRT > > > > Switchercad III is free spice software with schematic capture. > > > Article: 98211 of rec.radio.amateur.homebrew From: Larry Gagnon Subject: Re: Schematic drawing software? Date: Wed, 02 Aug 2006 07:38:06 -0700 Message-ID: References: http://www.expresspcb.com/ Article: 98212 of rec.radio.amateur.homebrew From: Me Subject: Re: RFID Transmitters,RFID and Environmental Issues, Wal-Mart and RFID: A Case Study References: <1154116025.469795.180480@s13g2000cwa.googlegroups.com> <1fppc25412oflaivage7ls7v1r1vn56bum@4ax.com> <6aivc2l4of4irkt8isuvluv9ju1kiv0eta@4ax.com> Message-ID: Date: Wed, 02 Aug 2006 17:32:42 GMT In article <6aivc2l4of4irkt8isuvluv9ju1kiv0eta@4ax.com>, Bill Turner wrote: > Certainly I can. And you can too if you like. > > For example, try getting the FCC to shut down a 500 KV power > transmission line because it's interfering with your ham radio > communications. This has been tried and the FCC's response is "That > would not be in the public interest". This actually happened. > > A clear violation of the rules, but he who makes the rules can also > violate the rules. > > And the word is spelled "scenario", DumbGuy. > > Bill, W6WRT Well lets look at the case sited. 500KV Powerline is not in and of it self a Licensed User. Their emmissions come under Part15, and what "Proof" was submitted to the FCC that the PowerLine was the cause? Power Companies, in general, are required to maintain their systems so as to eliminate emissions, when they interfere with Licensed Radio Services. They are required to replace insulators that are bearking down and flashing over causing radiated emissions. These type of issues are handled by the FCC every day, and I have PERSONALLY dealt with this type of regulatory issue, many times, just like the neighbors Fish Tank Heater causing Pink Noise from 10Khz on up to 25Mhz. There are Case Files where the Commission has levied fines to Power Companies for not replacing failed Insulators that caused MF/HF Interference. One of the best ones, I remember, was a regional Power Company was issued a $10K Notice of Forfiture for repeated failure to eliminate interference >from a line that passed a USCG MF/HF CommSta, after repeated Notices of Violation. The CEO was named in the Notice, Personally, and he was given 10 days to reply, and if he didn't the Federal Marshal would be knocking on his door, with a Warrent, signed by the local US District Attorny. That got the CEO's attention and the insulators were repaired in quick time. No more interference. USCG Base Commanders bloodpressure returned to normal, and his mumbled threat to shoot every bad insulator, was completly forgotten. Billyboy, you seem to have issues with Federal Regulators that go far beyond the scope of this news group. They have medication, that is helpful in such situations. Have you looked into this for your Health? Me Article: 98213 of rec.radio.amateur.homebrew From: Bruce in Alaska Subject: Re: Schematic drawing software? References: Message-ID: Date: Wed, 02 Aug 2006 17:36:58 GMT In article , Bill Turner wrote: > Some years ago I used Visio at work for schematic drawing, but I no > longer have access to it. Can someone recommend a program to use at > home for creating schematic drawings? I don't care if it is payware as > long as the price is reasonable. I found a couple with Google which > were several hundred bucks, a bit much for my needs. > > Do recent Visio releases still have schematic drawing capability? I > went to the Microsoft website and they advertise all kinds of drawing > capabilities, but not schematics. > > Thanks in advance, > > Bill, W6WRT Any good CADD program can do that. If it is the symbols your looking for, most of the good CADD outfits have libraries of Electronic, Electric, Mechanical, and Structural Symbols, or you can build your own library of symbols. Bruce in alaska AL7AQ -- add a <2> before @ Article: 98214 of rec.radio.amateur.homebrew From: Bill Turner Subject: Re: RFID Transmitters,RFID and Environmental Issues, Wal-Mart and RFID: A Case Study Date: Wed, 02 Aug 2006 12:38:22 -0700 Message-ID: <9eu1d2tv5al6jj81scl4fmkakjn3krq2uk@4ax.com> References: <1fppc25412oflaivage7ls7v1r1vn56bum@4ax.com> <6aivc2l4of4irkt8isuvluv9ju1kiv0eta@4ax.com> On Wed, 02 Aug 2006 17:32:42 GMT, Me wrote: >Well lets look at the case sited. You dunnit again. Are you grammar impaired? The word is "cited". How can you be a jailhouse lawyer if you can't speeka da Inglish? >500KV Powerline is not in and of it >self a Licensed User. Blah, blah, blah, etc, etc, ad nauseam. Like most jailhouse lawyers, you do not realize what is possible and what is not. The FCC makes the rules, the FCC can break the rules. They would of course call it "interpreting" the rules. >Billyboy, you seem to have issues with Federal Regulators that go far >beyond the scope of this news group. They have medication, that is >helpful in such situations. Have you looked into this for your Health? Yes I have. Jim Beam is my favorite medication and makes annoying little ankle-biters like yourself easily tolerable. I'm sure you are aware of it because your original post about what a great idea it would be to jam WalMart showed signs of over-medication. > >Me Did you create that sig all by yourself? Perhaps you called in a consulting firm? Bill, W6WRT who did create his own sig after only a few weeks Article: 98215 of rec.radio.amateur.homebrew From: "Heytubeguy" Subject: FA:Antique Radio dials,parts + Message-ID: Date: Wed, 02 Aug 2006 20:32:06 GMT Check out the NIB Millen Radio dial + others by Bud and Gordon too AND NOS parts by Millen + B&W Mini Coils in original boxes: AT: http://search.ebay.com/_W0QQfgtpZ1QQfrppZ25QQsassZheytubeguy MANY more NOS parts coming from EF JOHNSON, MILLEN, MILLER, ETC. check back often. Tnx for looking : heytubeguy Article: 98216 of rec.radio.amateur.homebrew Date: Thu, 03 Aug 2006 00:21:37 +0000 From: Scott Subject: Re: Microstrip dimension References: <12cv4so30fv7d14@corp.supernews.com> Message-ID: <5YOdnW48ZtcP3EzZnZ2dnUVZ_sidnZ2d@bright.net> Thanks Roy, I will take a micrometer to it and figure out which it will end up being. Either way, It'sa gonna be small! Scott N0EDV Roy Lewallen wrote: > If the dielectric material is 6.5 mils thick and the copper is very > thin, the width needs to be 18.7 mils. If the substrate material is > 0.0065 inches thick and the copper is "one ounce" (1.4 mils thick), the > width needs to be 17.3 mils. If the total thickness is 6.5 mils, and > that thickness includes top and bottom layers of "one ounce" copper > (leaving 3.7 mils of dielectric), the thickness needs to be 9.5 mils. > > Good luck! > > Roy Lewallen, W7EL > > Scott wrote: > >> Question: Does anybody know how to calculate the width of a 50 Ohm >> microstrip line on Arlon PTFE circuit board (Type GX-0065-45-11). It >> is 0.0065" thick, double sided and has a k=2.45. Looking at my chart, >> it looks like I leave the bottom as complete copper groundplane and >> take off all copper around stripline on the top side of the board and >> leave the stripline as 0.0195" wide? That doesn't sound very wide!! >> >> Scott >> N0EDV Article: 98217 of rec.radio.amateur.homebrew From: Bill Turner Subject: Re: RFID Transmitters,RFID and Environmental Issues, Wal-Mart and RFID: A Case Study Date: Wed, 02 Aug 2006 19:00:11 -0700 Message-ID: References: <1154116025.469795.180480@s13g2000cwa.googlegroups.com> <1fppc25412oflaivage7ls7v1r1vn56bum@4ax.com> On Wed, 02 Aug 2006 20:12:24 GMT, "Brian" wrote: >This is the most idiotic ranting I have seen in weeks. You need to get out more, Brian. There's lots more idiotic stuff around than this. > > >Oh yeah...top posting rules That, for example. Mr Bill Article: 98218 of rec.radio.amateur.homebrew From: Me Subject: Re: RFID Transmitters,RFID and Environmental Issues, Wal-Mart and RFID: A Case Study References: <1fppc25412oflaivage7ls7v1r1vn56bum@4ax.com> <6aivc2l4of4irkt8isuvluv9ju1kiv0eta@4ax.com> <9eu1d2tv5al6jj81scl4fmkakjn3krq2uk@4ax.com> Message-ID: Date: Thu, 03 Aug 2006 17:55:23 GMT In article <9eu1d2tv5al6jj81scl4fmkakjn3krq2uk@4ax.com>, Bill Turner wrote: > Yes I have. Jim Beam is my favorite medication and makes annoying > little ankle-biters like yourself easily tolerable. I'm sure you are > aware of it because your original post about what a great idea it > would be to jam WalMart showed signs of over-medication. Seems to be a classic case of PUI....... (Posting under the Influence)... Me Article: 98219 of rec.radio.amateur.homebrew From: Ben Jackson Subject: Coupling capacitor magnitudes Message-ID: Date: Thu, 03 Aug 2006 17:23:31 -0500 Most of the time I see RF stages coupled with .1u caps, which are basically transparent at RF. Sometimes I see very small values used, like 3-10p. A couple examples are in: http://www.amqrp.org/kits/38spcl/schematic.html C17 (near the middle top, connecting U2 to a tank) and then the output of that tank to U4A (unmarked, but also 5p). It's clearly important to the circuit (empirically) but I don't understand what they're doing. I can sort of see C20 (the unmarked second one) acting as a high-pass RC filter. -- Ben Jackson AD7GD http://www.ben.com/ Article: 98220 of rec.radio.amateur.homebrew From: "AndyS" Subject: Re: Coupling capacitor magnitudes Date: 3 Aug 2006 16:31:14 -0700 Message-ID: <1154647874.050585.296620@75g2000cwc.googlegroups.com> References: Ben Jackson wrote: > It's clearly important to the circuit (empirically) but I don't understand > what they're doing. I can sort of see C20 (the unmarked second one) acting > as a high-pass RC filter. > > -- > Ben Jackson AD7GD > > http://www.ben.com/ Andy writes: Well, it could be that his transmitter oscillated, and he just tacked a 220 pf to ground for C20 to make it stop....... Putting a cap to ground on the output of an op amp is something I have always avoided, EXCEPT when it made things work... :>))))) Andy W4OAH Article: 98221 of rec.radio.amateur.homebrew From: Roy Lewallen Subject: Re: Coupling capacitor magnitudes Date: Thu, 03 Aug 2006 16:52:00 -0700 Message-ID: <12d531571iu3j65@corp.supernews.com> References: Those small capacitors effect an impedance transformation into and out of the tank. They also reduce the shunt R seen by the tank, which increases its loaded Q and therefore selectivity. Roy Lewallen, W7EL Ben Jackson wrote: > Most of the time I see RF stages coupled with .1u caps, which are > basically transparent at RF. Sometimes I see very small values > used, like 3-10p. > > A couple examples are in: > > http://www.amqrp.org/kits/38spcl/schematic.html > > C17 (near the middle top, connecting U2 to a tank) and then the output > of that tank to U4A (unmarked, but also 5p). > > It's clearly important to the circuit (empirically) but I don't understand > what they're doing. I can sort of see C20 (the unmarked second one) acting > as a high-pass RC filter. > Article: 98222 of rec.radio.amateur.homebrew From: "Will" Subject: Re: Schematic drawing software? Date: 3 Aug 2006 23:44:57 -0700 Message-ID: <1154673897.567296.228700@m79g2000cwm.googlegroups.com> References: Michael A. Terrell wrote: > Service to my country? Been there, Done that, and I've got my DD214 to > prove it. > Member of DAV #85. > > Michael A. Terrell > Central Florida Thank you Mike. Will DAV 22 Alhambra CA Memorial Honor Detail Memorial Honor Detail, Riverside National Cemerty, CA. Armorer, RNC. Article: 98223 of rec.radio.amateur.homebrew From: Mike Subject: Re: Schematic drawing software? Date: Fri, 04 Aug 2006 05:50:35 -0400 Message-ID: References: On Tue, 01 Aug 2006 20:16:20 -0700, Bill Turner wrote: >Some years ago I used Visio at work for schematic drawing, but I no >longer have access to it. Can someone recommend a program to use at >home for creating schematic drawings? I don't care if it is payware as >long as the price is reasonable. I found a couple with Google which >were several hundred bucks, a bit much for my needs. > >Do recent Visio releases still have schematic drawing capability? I >went to the Microsoft website and they advertise all kinds of drawing >capabilities, but not schematics. > >Thanks in advance, > >Bill, W6WRT Here's an open source prog that works pretty well. http://tinycad.sourceforge.net/ It makes nice schematics and is pretty easy to use. Mike ------------------------------------------------------------------------ Sir Julian Huxley - Humanist, atheist and science popularizer, Professor of Zoology, President of UNESCO 25 yrs ago in a radio interview "I suppose that the reason that we lept at the origin (of the species) was because the idea of God interfered with our sexual mores." Article: 98224 of rec.radio.amateur.homebrew From: nospam@nouce.bellatlantic.net Subject: Re: Coupling capacitor magnitudes Message-ID: References: Date: Fri, 04 Aug 2006 13:37:08 GMT On Thu, 03 Aug 2006 17:23:31 -0500, Ben Jackson wrote: >Most of the time I see RF stages coupled with .1u caps, which are >basically transparent at RF. Sometimes I see very small values >used, like 3-10p. Depends on the frequency and the impedences. >A couple examples are in: > > http://www.amqrp.org/kits/38spcl/schematic.html > >C17 (near the middle top, connecting U2 to a tank) and then the output >of that tank to U4A (unmarked, but also 5p). > >It's clearly important to the circuit (empirically) but I don't understand >what they're doing. It's part of the matching network, the upper cap is the 5p and the lower is 100p. Also by making the value small the amount of RF coupled is lower ( capacitive attenuator) along with tuning L2. It is a simple circuit but has a more complex analysis. For example U2 on recieve is a product detector and the desired output from pin 4 is audio. On transmit it's used as a mixer to get the VXO and BFO to produce a ~10mhz rf signal at pin 4. So making the path for RF use a smaller value to keep any audio out of the path is part of the circuit "tricks". Since the design makes many of the parts serve dual duty the analysis is often less than obvious. >I can sort of see C20 (the unmarked second one) acting >as a high-pass RC filter. It's doing two jobs, DC blocking and a somewhat high pass coupling. However the impedence at that point is fairly high so coupling values can be smaller. The device there is not an opamp but a inverter (digital logic) from a CMOS IC pressed into service as an amplifier so there are some things done arount it to make behave are as needed to make it work. Allison KB!GmX Article: 98225 of rec.radio.amateur.homebrew From: "xpyttl" References: <44D05382.5231D483@earthlink.net> Subject: Re: Schematic drawing software? Message-ID: Date: Fri, 4 Aug 2006 13:49:20 -0400 Take a peek at gEDA http://www.geda.seul.org Schematic drawing, PCB layout, modeling, the whole shot. And it's free .. Article: 98226 of rec.radio.amateur.homebrew From: "AndyS" Subject: Re: Coupling capacitor magnitudes Date: 4 Aug 2006 12:22:41 -0700 Message-ID: <1154719360.972760.27360@b28g2000cwb.googlegroups.com> References: com/ > > Andy writes: > > Well, it could be that his transmitter oscillated, and he just tacked > > a 220 pf to ground for C20 to make it stop....... > > Putting a cap to ground on the output of an op amp is something > I have always avoided, EXCEPT when it made things work... :>))))) > > Andy W4OAH Oops !!! I was looking at C21 instead of C20...... ........ never mind .... :>)))))) Andy Article: 98227 of rec.radio.amateur.homebrew From: "W3JDR" References: Subject: Re: Coupling capacitor magnitudes Message-ID: Date: Fri, 04 Aug 2006 22:12:55 GMT Ben, The series C17 coupling cap is working against the net reactance of the C19-TC2-L2 circuit to form a resonant impedance matching network. Although it's not obvious, the tank network is tuned on the inductive side of resonance in order to produce exactly enough net inductive reactance to resonate C17. At this setting, C17 and the net inductive reactance of the C19-TC2-L2 network form a series resonant circuit. Because the whole network is resonant, the junction of C17 and the C19-TC2-L2 network is a higher impedance point than the pin 8 output of U2. Assuming lossless components, energy must be conserved, and so the signal voltage at this high impedance point is higher than at pin 8 - yes, voltage gain in a passive network! The unmarked coupling cap feeding into U4A is probably just a large value "DC block", since the U4A stage design will have a fairly high input impedance and so will not substantially load the tuned impedance step-up network. Most people think that couping caps are just used to drop signal voltage sort of like inserting a resistor, but if designed carefully as part of a resonant interface as I described, they transfer energy with little or no power loss, and can actually produce voltage gain. This is a very important RF design concept that many folks don't understand. Joe W3JDR "Ben Jackson" wrote in message news:slrned4tr3.3go.ben@saturn.home.ben.com... > Most of the time I see RF stages coupled with .1u caps, which are > basically transparent at RF. Sometimes I see very small values > used, like 3-10p. > > A couple examples are in: > > http://www.amqrp.org/kits/38spcl/schematic.html > > C17 (near the middle top, connecting U2 to a tank) and then the output > of that tank to U4A (unmarked, but also 5p). > > It's clearly important to the circuit (empirically) but I don't understand > what they're doing. I can sort of see C20 (the unmarked second one) acting > as a high-pass RC filter. > > -- > Ben Jackson AD7GD > > http://www.ben.com/ Article: 98228 of rec.radio.amateur.homebrew From: Ben Jackson Subject: Re: Coupling capacitor magnitudes References: Message-ID: Date: Fri, 04 Aug 2006 17:42:57 -0500 On 2006-08-04, W3JDR wrote: > unmarked coupling cap feeding into U4A is probably just a large value "DC > block", since the U4A stage design will have a fairly high input impedance > and so will not substantially load the tuned impedance step-up network. That was my assumption, however when I replicated that part of the circuit, I found that when U4 was at 8V, the signal picked up a LOT of phase noise. I'm assuming that the 10k feedback resistor that biases the inverter for linear operation was back-driving the tank. Or perhaps it's the fact that in the inverting amplifier configuration the XC of C20 is required to set the gain at a reasonable ~3x instead of essentially infinite. In that case I should have been able to use a .1u + 3k R for the same effect. Anyway, I've found this tiny bit of circuitry to be very informative! -- Ben Jackson AD7GD http://www.ben.com/ Article: 98229 of rec.radio.amateur.homebrew Date: Fri, 04 Aug 2006 21:15:32 -0400 From: VOA SWLer Subject: Maryland-DC QSO Party - Aug 12 & 13 Message-ID: For information about the Maryland-DC QSO Party, click on . Hope to work you during the contest. 73! Article: 98230 of rec.radio.amateur.homebrew From: bill.meara@gmail.com Subject: SolderSmoke #28: SPRAT, QRSS, QST $50 RIG, Class C saturation? A Logo for SolderSmoke Date: 4 Aug 2006 23:03:20 -0700 Message-ID: <1154757800.512447.58910@i3g2000cwc.googlegroups.com> SolderSmoke! A SHOW FOR ELECTRONICS HOMEBREWERS! http://www.ourmedia.org/node/250909 Topics discussed in SolderSmoke #28: -- SPRAT Cermaic Oscilator article -- Tin whiskers and lead free solder -- QST's $50 rig design challenge -- Class C amps: Saturation required? -- Solder Smoke's LOGO DESIGN challenge -- FB QSO on 20 DSB with SM4FQW -- Slow Speed QRP (QRSS) -- WebShots, YouTube -- MAILBAG: K8WDE, KA6VKP, WB8ICN, VK2KYP KK7CC Listen at: http://www.ourmedia.org/node/250909 Background: Tired of listening to Led Zepplin or NPR on your I-Pod? Wouldn't you like to be able to carry with you the kinds of ham radio conversations that you listen to while in your radio shack? Mike, KL7R, in Juneau, Alaska, and Bill, M0HBR, in London, England meet regularly on the ECHOLINK system to discuss their homebrew radio projects. We are making them available as PODCASTS. NEW RSS FEED: You can subscribe to the program, have them downloaded to your MP-3 player, and listen to them at your convenience. To subscribe, just cut and paste this URL into your I-poder (or similar) software. We've been having trouble with our Ourmedia RSS feed, so Mike (software wizard that he is) has homebrewed his own RSS feed. In order to subscribe to SolderSmoke, point your podcast software to: http://kl7r.ham-radio.ch/soldersmoke.rss If you don't have an MP3 player you can just go to the site below and listen to the latest program (and earlier editions) using the audio software on your computer. http://www.ourmedia.org/node/250909 Here's the homepage for our show. All our programs are available here. There is also a blog and links to some of the sites and documents we've been discussing: http://www.ourmedia.org/user/36170 We hope you enjoy the program. Please send us feedback. 73 from London Bill M0HBR N2CQR CU2JL http://www.gadgeteer.us Article: 98231 of rec.radio.amateur.homebrew From: "Gian, I7SWX" Subject: Re: Help Tek 495P Spectrum Analyzer Manuals Date: 5 Aug 2006 04:26:56 -0700 Message-ID: <1154777216.320532.137170@p79g2000cwp.googlegroups.com> References: <1154206127.225648.219230@h48g2000cwc.googlegroups.com> Hi Roy, thanks for the tip. I will look for him I would like to thanks all those that replied to my e-mail address. I have found all the manuals on a CD and are on the way to me. 73 Gian I7SWX Roy Lewallen wrote: > Try Deane Kidd, W7TYR. A google search of > "Deane Kidd" manuals > will bring you contact information. > > Roy Lewallen, W7EL > > Gian, I7SWX wrote: > > elspxvwcyr@yahoo.com wrote: > >> Try Vintage Manuals, . I recently ordered a manual > >> for my B&K function generator and was very pleased with the service. > > > > Thanks for your follow-up. I know W7FG service. I bought 3 manuals from > > him a few years ago. Yews, good service. > > > > I checked but he does not have anything on 495P > > > > 73 > > Gian > > I7SWX > > Article: 98232 of rec.radio.amateur.homebrew From: "Gian, I7SWX" Subject: Help (again) Tek Manuals TR503 & DM501 Date: 5 Aug 2006 06:25:09 -0700 Message-ID: <1154784308.324121.142390@i42g2000cwa.googlegroups.com> Hi all, I am looking for some more Tektronix manuals. A local friend was supposed to get these for me but his friend sold the gear and manuals long time ago. TR 503 Tracking Generator used associated with Spectrum Analyzer TEK 496, I will use it with the 495P. DM501 Digital Multi-meter. I have a short circuit somewhere internally so I need mainly the circuit diagrams. Thanks for helping me. Best 73 Gian I7SWX W1-I7SWX F5VGU CE3-I7SWX Article: 98233 of rec.radio.amateur.homebrew From: "Mario Bros" References: <1154784308.324121.142390@i42g2000cwa.googlegroups.com> Subject: Re: Help (again) Tek Manuals TR503 & DM501 Date: Sat, 5 Aug 2006 20:24:26 +0200 Message-ID: <44d4e24f$0$30236$4fafbaef@reader1.news.tin.it> http://cgi.ebay.com/TEK-TEKTRONIX-TR-503-TR503-TR-503-OP-SERVICE-MANUAL_W0QQitemZ7608862104QQihZ017QQcategoryZ40123QQcmdZViewItem Non so se puņ esserti d'aiuto- Rocco "Gian, I7SWX" ha scritto nel messaggio news:1154784308.324121.142390@i42g2000cwa.googlegroups.com... > Hi all, > > I am looking for some more Tektronix manuals. A local friend was > supposed to get these for me but his friend sold the gear and manuals > long time ago. > > TR 503 Tracking Generator used associated with Spectrum Analyzer TEK > 496, I will use it with the 495P. > > DM501 Digital Multi-meter. I have a short circuit somewhere internally > so I need mainly the circuit diagrams. > > Thanks for helping me. > > Best 73 > > Gian > I7SWX > W1-I7SWX > F5VGU > CE3-I7SWX > Article: 98234 of rec.radio.amateur.homebrew From: "Gian, I7SWX" Subject: Re: Help (again) Tek Manuals TR503 & DM501 Date: 6 Aug 2006 02:46:58 -0700 Message-ID: <1154857618.407407.117710@m73g2000cwd.googlegroups.com> References: <1154784308.324121.142390@i42g2000cwa.googlegroups.com> Grazie Rocco, li ho trovati 73 Gian Mario Bros wrote: > http://cgi.ebay.com/TEK-TEKTRONIX-TR-503-TR503-TR-503-OP-SERVICE-MANUAL_W= 0QQitemZ7608862104QQihZ017QQcategoryZ40123QQcmdZViewItem > > Non so se pu=F2 esserti d'aiuto- > > Rocco > > > > "Gian, I7SWX" ha scritto nel messaggio > news:1154784308.324121.142390@i42g2000cwa.googlegroups.com... > > Hi all, > > > > I am looking for some more Tektronix manuals. A local friend was > > supposed to get these for me but his friend sold the gear and manuals > > long time ago. > > > > TR 503 Tracking Generator used associated with Spectrum Analyzer TEK > > 496, I will use it with the 495P. > > > > DM501 Digital Multi-meter. I have a short circuit somewhere internally > > so I need mainly the circuit diagrams. > > > > Thanks for helping me. > > > > Best 73 > > > > Gian > > I7SWX > > W1-I7SWX > > F5VGU > > CE3-I7SWX > > Article: 98235 of rec.radio.amateur.homebrew From: "Gian, I7SWX" Subject: Re: Help (again) Tek Manuals TR503 & DM501 Date: 6 Aug 2006 02:48:40 -0700 Message-ID: <1154857720.584372.229600@p79g2000cwp.googlegroups.com> References: <1154784308.324121.142390@i42g2000cwa.googlegroups.com> Hi all, this request of mine found the most rapid replies. I have found the manuals. Thanks for the support and best 73 Gian I7SWX Article: 98236 of rec.radio.amateur.homebrew From: Cathy@noosempty.net Subject: Mega promos dans notre sex shop Date: 06 Aug 2006 11:53:47 GMT Message-ID: <44d5d84a$0$831$ba4acef3@news.orange.fr>
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Article: 98239 of rec.radio.amateur.homebrew Message-ID: <44D66A54.3FCB9259@nospam.com> From: carlo Subject: Re: Help (again) Tek Manuals TR503 & DM501 References: <1154784308.324121.142390@i42g2000cwa.googlegroups.com> <1154857720.584372.229600@p79g2000cwp.googlegroups.com> Date: Sun, 06 Aug 2006 22:16:53 GMT hi, Lots of tek help here http://groups.yahoo.com/group/TekScopes/ regards, carlo Article: 98240 of rec.radio.amateur.homebrew Date: Mon, 07 Aug 2006 10:01:27 +0800 From: me Subject: Re: Dick Smith Radio Direction Finder References: <43C15BA4.3F39@orcon.net.nz> <43c793c4$0$2255$afc38c87@news.optusnet.com.au> <43C80CF5.2B5C@orcon.net.nz> <43c83db7$0$17190$afc38c87@news.optusnet.com.au> <43c8eaa8$0$13318$afc38c87@news.optusnet.com.au> Message-ID: <44d69eec@quokka.wn.com.au> Kev wrote: Kev a tanker wanker ,,,, do tell more Kev Deck or ER ? > news wrote: > >> yes thanks glenn. I would like a copy of the circuit. >> >> email james_about@hotmail.com with the info please. >> >> Any thing you need also. I keep a fairly extensive collection of radio >> software and circuits. >> >> And gidday to Kev ....tanker wanker. private joke. >> >> > > :) > > > Kev