Re: [AMRadio] Use of an oscilloscope to monitor am audio
A diagram would help me if you can email it to me. In 1963 I got my drivers license. Got my learners permit in 62. Thanks, Jim Miller. [EMAIL PROTECTED] - Original Message - From: [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Wednesday, March 22, 2006 7:13 AM Subject: RE: [AMRadio] Use of an oscilloscope to monitor am audio I just got a 1963 handbook and I am proud to have it. I was two years old when it was printed. 73 Alan Quoting Craig C. Heaton [EMAIL PROTECTED]: Good Morning Jim, Yup, some addional hardware is needed for both a waveform and trapezoidal pattern. Best to get an older ARRL(g) Handbook from the late 1950's early 1960's. The circuits and hardware are descriped there. I can send info, .pdf file, jpegs, and parts list of a little box I built for my cheap $5 hamfest Eico 460. 73's wd8kdg Craig -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jim Miller WB5OXQ Sent: Saturday, March 18, 2006 9:29 AM To: Discussion of AM Radio Subject: [AMRadio] Use of an oscilloscope to monitor am audio I have a Tektronix model 453a scope and I would like to know how it can be used to monitor transmitted signals. Do I need extra hardware or an interface of some type to obtain the trapezoid pattern? I know some scopes designed for amateur radio have this feature built in so I wonder if my scope can be used for this? WB5OXQ. __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
Re: [AMRadio] Free kilowatt BC transmitter - Long Island NY
One can easily rent a trailer it will fit in - Original Message - From: Phil Galasso [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Sunday, April 02, 2006 9:01 PM Subject: Re: [AMRadio] Free kilowatt BC transmitter - Long Island NY - Original Message - Otherwise, strip it down, buy a few sheetmetal blades for your skillsaw, and cut the cabinet into small enough pieces to get out the door, and use the goodies to build up a nice homebrew rig. By carefully cutting up the cabinet, the metal panels could be preserved for building something a little more compact for ham use. That's SACRILEGE! It's a little like stripping down a vintage Packard or a Rolls-Royce and using the parts to build a lawn mower! Where there's a will, there's a way. Several within our group have successfully moved Collins 21E's and other huge rigs. Phil G. K2PG __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
[AMRadio] 10 Meter AM Frequencies
I seem to remember that about 20 years ago some folks were converting 23 channel CB rigs to use on 10 meters (by legal hams, of course). I think they were just changing four of the xtals in the xtal synth circuit and ending up with 23 channels in the 10 meter band. At the time I think there was some sort of agreed upon scheme so everyone was ending up on the same 23 frequencies. Does anyone know what these are? If not, what would be a good choice of frequencies for such a conversion? I have an old antique tube type CB rig I want to put on 10 meters. Thanks 73, Theo K4MO
RE: [AMRadio] k1man fined
This thread is painful at best. In the late 50s the then sales manager for Walter Ashe Radio in St. Louis, MO ran A2 code practice on 10 meters. From letter recognition to maybe 10 WPM. This was done on a regular schedule and was one way broadcasting. It helped a lot of young hams including me get their first ticket. The ARRL information broadcasts including CW code practice have always been for the benefit of hams. There has never been a commercial or political component involved in any of their broadcasts that I know of. It is possible with the changing times these broadcasts are not as important as they once were with email bulletins and such. However still to this day not everyone has a computer and some still get information from these broadcasts. Just because it does not work for you does not mean it does not work for others. It amazes me at how much serious talent on this page is so very narrow minded and self centered. 73 and yes I will be going now. K0AZ Mike Sanders 18169 Highway 174 MT Vernon, Missouri 65712-9171 [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Phil Galasso Sent: Sunday, April 02, 2006 9:09 PM To: [EMAIL PROTECTED]; Discussion of AM Radio Subject: Re: [AMRadio] k1man fined - Original Message - Subject: Re: [AMRadio] k1man fined Also I would think ARRL in Newington should be VERY careful before they fire up their W1AW Broadcasts now. This precedent could easily be applied to them, if someone wanted to entrap them. The difference between the W1AW broadcasts and the K1MAN broadcasts is that W1AW does not openly promote any merchandise sold by the League. For that reason, W1AW was not the subject of any FCC enforcement action. W1AW is not doing anything illegal under the current rules. Several years ago, a Petition for Rulemaking was filed with the FCC. This petition would have eliminated ALL broadcasting activity on the congested HF phone bands. The FCC never put it up for public comment. Broadcasting, whether by K1MAN, W1AW, or anyone else, does not belong on the amateur bands. If someone wants to play broadcaster, let him or her buy time on the numerous commercial shortwave stations that operate in this country. The rates on most of them are quite reasonable and those stations run a minimum of 50 kW transmitter power (not including antenna gain). Phil G. K2PG __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.3.4/299 - Release Date: 3/31/06 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.3.4/299 - Release Date: 3/31/06
Re: [AMRadio] 10 Meter AM Frequencies
The channelized conversion can be found in old 73 magazine articles called CB to TEN from the mid seventies. I would not use those ,instead a good choice of frequencies would be 29.000, 29.025and 29.050 email me off lost with the radio model you are considering for the conversion I have done quite a few and may have some tips. 73 Steve WB5UGT - Original Message - From: Theo Bellamy [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Monday, April 03, 2006 8:49 AM Subject: [AMRadio] 10 Meter AM Frequencies I seem to remember that about 20 years ago some folks were converting 23 channel CB rigs to use on 10 meters (by legal hams, of course). I think they were just changing four of the xtals in the xtal synth circuit and ending up with 23 channels in the 10 meter band. At the time I think there was some sort of agreed upon scheme so everyone was ending up on the same 23 frequencies. Does anyone know what these are? If not, what would be a good choice of frequencies for such a conversion? I have an old antique tube type CB rig I want to put on 10 meters. Thanks 73, Theo K4MO __ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
Re: [AMRadio] 10 Meter AM Frequencies
From: Theo Bellamy I seem to remember that about 20 years ago some folks were converting 23 channel CB rigs to use on 10 meters (by legal hams, of course). I think they were just changing four of the xtals in the xtal synth circuit and ending up with 23 channels in the 10 meter band. At the time I think there was some sort of agreed upon scheme so everyone was ending up on the same 23 frequencies. Does anyone know what these are? I sure don't know, but it was written up in the QST magazine with conversion articles. Should have been in the late seventies. I might find it accidently, but have no clue where to look right now. Mike - Original Message -
Re: [AMRadio] 10 Meter AM Frequencies
[EMAIL PROTECTED] writes: just changing four of the xtals in the xtal synth circuit and ending up with 23 channels in the 10 meter band. In my Robyn T-123B 23-channel tube-type crystal-mixing type CB, I changed the first two A oscillator crystals to 25.325 and 25.385 MHz and ended up with channels 1 thru 8 as follows: 29.000 MHz 29.010 29.020 29.040 29.060 29.070 29.080 29.100 MHz There is good info on these rigs at CBC International's website http://www.cbcintl.com/ under Crystal Mixing Charts. For my specific rig look at http://www.cbcintl.com/XTALS/AM%2014950-23290-11275-11730.pdf Steve WD8DAS [EMAIL PROTECTED]
Re: [AMRadio] 10 Meter AM Frequencies
Theo: There once was a plan to move the CB set up exactly 2.0 MHz from the Channel 1 CB Frequency (26.965) which means that the converted set would be on 28.965 for channel 1 etc. I never heard much activity there so I started making Channel 1 start at 29.0 MHz where there is a much better chance of making a contact, just in my opinion of course. Good Luck. 73 DE Charlie, K0NG
