Re: [AMRadio] The zeal to eliminate AM mode on the amateur bands.
John Coleman ARS WA5BXO wrote: I am very fortunate to have the support of my wife in these ham radio things. She used to like to travel with me to meet the other people but now days all we have time for is rearing kids and doing scout activities. That's not a bad thing, but we do look forward to the future of not being locked down so much. Of course with the fuel cost the way it is, we may not do a lot of traveling to meet others in the future. John, WA5BXO What does that make me? chopped liver? ;-) It was good to see you, and Vickie and the boys, this weekend, John. Was great to see the N.O.S. gang in Dallas, yesterday. I had a ball today too, after I left y'all, and visited with Otis/K5SWK (and the cats), Larry/WD5CFJ (and his pretty wife Pam), and BJ/WB5PKD (and his pretty wife Evelyn). I think I need another, just for self-defence -- 73 = Best Regards, -Geoff/W5OMR
Re: [AMRadio] RE: Eliminate AM!
This is an interesting thread and I guess I just had to throw my two cents in. The SSB vs AM wars have been going on since the 50's, perhaps mostly because of the incompatibility of the two modes. The SSBers complain about bandwidth and carriers of the AM stations and the AMers complain about the Quack Quack from SSB. This may never ever be resolved as long as we are both trying to compete for the same space on the bands. It does certainly help, however, to have some sort of mutual respect and tolerance for each other. After all, we are all hams!! This is why the idea for the AM window(s) really came into play. The problem is that as long as the windows are not respected as being a haven for AM operations, they are worthless as far as preventing interference from SSB or other modes. Andwe all know that the AM windows are certainly not respected by many, if any SSBers. It is interesting to note that the ranks of AMers are filled with many very knowledgable and talented individuals who are interested in AM because it just sounds better than SSB. There are also many individuals who enjoy the mode for the nostalgia aspects, including collecting, restoring , and operating vintage tube-type gear. Many of these folks were first licensed during the time when AM was the most prevelant mode on the phone bands. They really enjoy stepping back in time a little and enjoying the relaxed, laid back operating style that is associated with AM. Anyway, I believe that AM and its associated specialties which include the nostalgia aspects are a great and enduring part of the hobby that should be encouraged and preserved. Would you throw away a '57 Chevy just because it is not the latest technology? Why, then would anyone want to dispose of or eliminate vintage gear and/or technology on the ham bands? We take up a very small percentage of the total available bandwidth and we actively enjoy and preserve the heritage and rich history of the hobby. There is really room for all of us! The diversity is great and it is one of the things that makes ham radio such a great hobby. There are so many different aspects of the hobby under one umbrella. Long Live AM!! 73, Jack, W9GT -- Original message -- BlankAM is gaining in popularity like crazy..Just look at the prices some of the great old AM rig command on ebay...It will never go away..After all it's calledAngel Music..Long Live AM..73's Ron W6MAU Ron and All- I agree that there has been a significant increase in the interest of AM/classic amateur equipment/accessories in recent years! I myself collect and restore antique radios/classic amateur radio equipment/accessories. Amateurs are beginning to realize that not only does AM have superior quality, but the equipment and accessories are a sound investment! AM and CW are the earliest forms of amateur communications and part of our historical tradition. This besides the fact that having the classic discrete parts layout in a chassis makes it more user friendly to repair and maintain. AM like CW will be around for years to come! Even on the amateur bands. The ARRL I believe recognizes these facts in their regulation by bandwidth petition they are drafting. I have spoken to our ARRL Rocky Mountain Division Director and Vice-Director about this. Most recently at the Duke City Hamfest late August last month in Albuquerque, New Mexico. They support retention of the wider bandwidths such as AM. Best 73's. Bob Scupp K5SEP Kilowatt Five Sporadic E Propagation __ 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 From [EMAIL PROTECTED] Mon Sep 19 12:46:01 2005 Return-Path: [EMAIL PROTECTED] X-Original-To: amradio@mailman.qth.net Delivered-To: amradio@mailman.qth.net Received: from relay01.roc.ny.frontiernet.net (relay01.roc.ny.frontiernet.net [66.133.182.164]) by mailman.qth.net (Postfix) with ESMTP id E5730859C1D for amradio@mailman.qth.net; Mon, 19 Sep 2005 12:45:57 -0400 (EDT) Received: from filter01.roc.ny.frontiernet.net (filter01.roc.ny.frontiernet.net [66.133.183.68]) by relay01.roc.ny.frontiernet.net (Postfix) with ESMTP id 3CCCA3641B5 for amradio@mailman.qth.net; Mon, 19 Sep 2005 16:38:20 + (UTC) Received: from relay01.roc.ny.frontiernet.net ([66.133.182.164]) by filter01.roc.ny.frontiernet.net (filter01.roc.ny.frontiernet.net [66.133.183.68]) (amavisd-new, port 10024) with LMTP id 07514-02-81 for amradio@mailman.qth.net; Mon, 19 Sep 2005 16:38:20 + (UTC) Received: from [127.0.0.1] (216-190-181-117.nrp2.mon.ny.frontiernet.net [216.190.181.117])
RE: [AMRadio] [Drying out inductors in a car trunk]
QST [AM], QST [AM], QST [AM] .. IF, like mine, your first thoughts about Jim's 3-pronged response to Joe's creative idea were: 1. Duct tape; 2. He didn't mean the car he drives, he meant one of the others (yard cars); AND 3. See 2. THEN (again like me), You MIGHT be a .. ; - ) 73 all around de Lee, W5JQA ...-.- From: Jim candela [EMAIL PROTECTED] Reply-To: Discussion of AM Radio amradio@mailman.qth.net To: Mike Dorworth, K4XM [EMAIL PROTECTED],Discussion of AM Radio amradio@mailman.qth.net Subject: RE: [AMRadio] Drying out HV transformers / Chokes Date: Sun, 18 Sep 2005 16:49:43 -0500 Hmmm, been most interesting. If I tried this with my 1999 Dodge Stratus, and my open frame BC-610 transformer, two things would occur: 1.) rust since my trunk seal leaks 2.) my gas mileage will suffer noticeably as well as car handling and maybe, 3.) If I get into an accident, the dang thing might smash me where I sit in the drivers seat. A BC-610 transformer flying through the air is not easily stopped! Regards, Jim WD5JKO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Mike Dorworth,K4XM Sent: Sunday, September 18, 2005 1:24 PM To: Discussion of AM Radio Subject: Re: [AMRadio] Drying out HV transformers / Chokes Hey Joe, that's 140 degrees F without the thermostat being necessary!. Great Idea! - Original Message - From: Joe A. Taylor [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Sunday, September 18, 2005 2:09 PM Subject: Re: [AMRadio] Drying out HV transformers / Chokes I'm sure may be too simplistic to work but. why not put the xformer in the trunk of a car and leave it there, outside in the sun, for a week or month. Here in KY that works for most everything. I've dried apples this way ;-) Joe N4NAS Joe[EMAIL PROTECTED] __ 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 -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.1/104 - Release Date: 9/16/2005 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.1/104 - Release Date: 9/16/2005 __ 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
Re: [AMRadio] Drying out HV transformers / Chokes
Regular floor varnish works just fine. You have to thin it with Zylene. The motor repair shop is a baking varnish. I use nomex paper when insulating rewinds. Its expensive but very very reliable. The tar is nothing more than the stuff roofers use on flat roofs. Its applied hot and cools down to a durable application. Should be able to chip a pound or two of one of the plugs of tar. I bet they would give it to you. The nomex paper is about $12.00 for a small sheet. There are different thicknesses. Regards, Gary...WZ1M - Original Message - From: Larry Will [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Sunday, September 18, 2005 7:49 PM Subject: Re: [AMRadio] Drying out HV transformers / Chokes Don, I found a source for transformer varnish on the internet. That varnish is very volatile and you may have trouble getting it as an individual. (the flash point is around 70 degrees with a spark as I remember and it has a short shelf life according to the mfgr.). I had no trouble but I am a licensed Professional Engineer. An option for the units is to find a motor rebuild shop. They usually have a 55 gallon drum of it that they dip the rewound motors into when they are done. I sure they would do it for you for a modest fee. I have no source on the tar or fish paper etc. Larry At 01:00 PM 9/18/2005, you wrote: Hello Larry and All, I have several 2.5v and 10v rusty,dirty, and rattling UTC small can S series filament transformers that I want rebuild and would like to know a source for transformer varnish and potting material, wax,tar, or whatever. On pulling the cover off the most rattling around one I found only sections of corrugated cardboard to be the packing/potting material !!. I would like to use something better and improve the heat transfer as these seem to be really small construction for the rated current. I intend to use the 10v units for 813/814/805 family. Any suggestions would be appreciated. Bill KB3DKS/1 -Original Message- From: Larry Will [EMAIL PROTECTED] To: [EMAIL PROTECTED]; Discussion of AM Radio amradio@mailman.qth.net Sent: Sun, 18 Sep 2005 10:41:41 -0400 Subject: Re: [AMRadio] Drying out HV transformers / Chokes Don, Here is the section in my article from ER Magazine on rebuilding an RCA BTA-1R1 on the homemade over I used with great sucess. all you need is a thermostatically controlled hotplate a thermometer and a hood. .from my RCA BTA-1R! article in ER. A check of all the iron with a 1000V 1000 megohm ohmmeter showed excessive leakage (less than 1000 megs) in the modulation reactor, the driver plate transformer, and the control transformer. The control transformer makes 110VAC for relays and lamps from the 240V input. The smaller transformers were baked in the kitchen oven at 140 degrees F for 5 hours. For the very heavy 50 henry modulation reactor, I fashioned a homemade oven using a thermostatically controlled single burner hotplate and a hood made from an old water heater jacket (Figure 1). This allowed me to cook the transformer out in the garage near the rig. An oven thermometer allowed me to set the oven temperature to 140 degrees F and after 25 hours of baking, the leakage was cured. All of these transformers and chokes were then dipped in transformer varnish to re-seal the winding from new moisture incursion. Regards, Larry W3LW __ 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 __ 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
Re: [AMRadio] Drying out HV transformers / Chokes
Speaking of HV trannys for the BC-610. I have one with a shorted secondary. My plans are to rewind this hunk of iron and turn the primary into a dual voltage, 115/230. This tranny is from the E model. Would I have anyone out there that mite be interested? Also, the transformer has those big beautiful cast endbells. Regards, Gary...WZ1M - Original Message - From: Geoff [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Sunday, September 18, 2005 11:12 PM Subject: Re: [AMRadio] Drying out HV transformers / Chokes Barrie Smith wrote: Are you sure you're talking about a BC-610 modulation transformer? I just took the back off of my HT-4B, which is similar to the BC-610, to take a look at the modulation transformer. It looks like a pick up with one hand object to me. BC-610 Plate Transformer, is what they were talking about, and it's -not- a ['pick up with one hand'] critter. Neither, for that matter, is the '610 Mod xfrmr, but it -is- smaller than the plate xfrmr. -- 73 = Best Regards, -Geoff/W5OMR __ 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
[AMRadio] Considerate operators freq. guide
Hello all, One of the postings on the conflict of AM on the ham bands mentioned observing the AM windows. Well, as far as I know, the only folks who actually maintain and disseminate this list of freqs, labeled The Considerate Operators Frequency Guide, is the ARRL. They print it once or twice a year in QST. Since the vast majority of hams don't belong to the ARRL, for the most part they will be ignorant of this list. And not just the AM windows. How about QRP calling freqs? Did you know there was a QRP SSB calling freq? All the DX windows seem to be news to many also. And the total disregard for any kind of gentleman's agreement on 160 is a harbinger of things to come on all the bands when CW is gone as a test element. My local ARRL reps, as noted in other postings from various parts of the country, have also verified that the ARRL has no intention of banning or supporting a ban of AM, by any means. I have noted on other sites that run comments, many times the most vocal anti-ARRL folk, have got their idea of the ARRL positions completely wrong. All I can go by is what I get from my Section MGR, and even emails answered by the lofty few in Newington. There are a lot of boat anchor folks out there, and as has been noted on this site, the numbers are increasing. Why would an organization go out of its way to alienate such a large group? Especially when the BA community in percentage terms are probably ARRL members in greater numbers. 73 de W4MEC, Charlie in NC __ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com
RE: [AMRadio] The zeal to eliminate AM mode on the amateur bands.
Having only been active on AM mode for just two short years, I consider myself to still be a newbie, still not understanding the zeal and fervor by some in the amateur community to eliminate or totally outlaw the use of AM mode transmissions in the MF/HF amateur bands in the USA. Could someone more familiar with the issue please give me a better understanding of why these people are so intent to get rid of this mode? Coincidentally, I posted a message on the AM Forum about an hour ago, on this very subject. Since there are participants on this reflector who do not monitor the AM Forum, I have copied it here. QUOTE: The great AM vs SSB wars took place in the mid 60's. At that time there indeed was a concerted effort by the League, other ham radio publications, equipment manufacturers, the FCC and a segment of the amateur community to make every amateur feel compelled to abandon his older equipment and go SSB. Almost every page of the ham magazines of that era had a pro-SSB spin. Members of ham clubs were made to feel inferior if they still ran AM. At hamfests hams were derided for purchasing AM equipment and building parts at the fleamarket. Rumours abounded that the FCC was about to outlaw AM and force everyone to switch over whether they wanted to or not. Although FCC officials never came out and specifically stated that this was their intent, they never missed an opportunity to praise SSB, based on its alleged virtue of spectrum conservation. Probably the main reason that I stayed on AM was because I very much resented all the arm-twisting, and declared to myself that come hell or high water I did NOT intend to be forced to change over. I recall the AM/SSB wars heating up in about 1963-65. It was largely between the holdouts who refused to change and the arrogant, self-righteous newly converted. That's when malicious interference exploded and became mainstream over-the-air conduct, which continues to this day to a certain degree. Then came incentive licensing. That seemed to be the final nail in the coffin of AM and largely, homebrewing in general. As the bands became divided into licence-class subbands, many of the old regulars simply disappeared. I was out of the country right at that time, but I recall coming home for a visit in 1969, and still hearing a lot of AM on the air, as the new subband restrictions were just going into effect. About a year and a half later I returned home, and by then 99% of the AM activity was gone. In the early 70's you could go to a hamest and find AM rigs, high power transmitting tubes and parts for homebrew projects, for near giveaway prices. I recall large triode transmitting tubes such as 450TL's, 250TH's, 833A's, etc going for about $5 NIB; nobody wanted them because weren't very good for use in a linear. While most hams were dumping this sort of stuff at hamfests and landfills, I was grabbing up as much as I could haul home. I used to come back from hamfests with the car nearly dragging the ground. I was often subject of derisive remarks at fleamarkets Look, somebody's found himself a boat anchor, haw, haw! To this day, I have a repulsion to the term boatanchor. In about 1973 AM began to come back. First, in the northeast, especially in New England, AM signals began to spring up. Most unexpectedly of all, a large portion of these new AM'ers were young, many still in university or even high school. I remember, as I had moved to the Boston area at that time, the AM vs SSB conflict had taken on somewhat of a generation-gap aspect. Many of the most anti-AM people were older hams who had converted to SSB years earlier, and had little good to say about the hippie types who were trashing up the bands with all that old AM junk. During that era, the League stayed silent on the AM issue. Another otherwise good technical publication, Ham Radio was openly hostile towards AM. I went to a New England ARRL convention at the Statler Hilton in downtown Boston, and recall a very attractive young lady (don't remember her name or callsign) speaking for the League at one of the forums, and the subject of Docket 20777 came up (which proposed to deregulate AM out of existence with a bandwidth proposal not too different from the present one being promoted by the League). She responded that the League was not in favour of outlawing AM, but instead, letting it die a natural death. She described ARRL policy towards AM as one of benign neglect. Despite the fact that the hotbed of AM activity took place on 75, there were a few operators who hung out on 160. Many of these hams were old timers, who had formed into groups such as the Grey-Haired Net. I recall reading a news item in Ham Radio on the subject of Docket 20777 describing the fact that many 160 m AM operators are just now becoming aware of their peril, with the implication that AM operation was limited to a few obscure groups on
RE: [AMRadio] The zeal to eliminate AM mode on the amateur bands.
H - I thought SSB was developed by the telephone companies or the military back in the 1930s, rather than by AM ham ops. Maybe I was given wrong information. Actually it was before 1920, for transatlantic communication on longwave. To get any kind of efficency at all out of the antennas for those frequencies, the tuned circuit had to be so high Q that the bandwidth of the antenna was too narrow to allow a full double sideband signal to pass, so someone at Bell Labs figured out that all the information could be transmitted on one sideband. I have seen circuit diagrams for balanced modulators in pre-1920 radio books. The SSB signal was basically generated with a balanced modulator and the antenna itself served as the sideband filter. I think the intended meaning of the message is that it was AM hams who first investigated using SSB on the ham bands and shortwave. There was a short article on SSB in the mid 1930's in QST, with the promise of more articles to come on practical construction. That article was mysteriously cut in mid paragraph, and nothing more was heard of it, nore were there any subsequent followups. SSB began to be developed for HF on the ham bands just after WW2.
Re: [AMRadio] Drying out HV transformers / Chokes
GBrown wrote: Speaking of HV trannys for the BC-610. I have one with a shorted secondary. My plans are to rewind this hunk of iron and turn the primary into a dual voltage, 115/230. This tranny is from the E model. Would I have anyone out there that mite be interested? Also, the transformer has those big beautiful cast endbells. interested... in? rewinding it? Buying it? rewinding and retapping it for dual primaries? ya gotta talk a bit clearer than that, to communicate ;-) -- 73 = Best Regards, -Geoff/W5OMR
[AMRadio] A simple cure for the AM Blues
1.) Tune to an AM Window near you. 2.) Configure your Radio Transmitting/Receiving Apparatus for Emmission Type A-3-E. 3.) Participate in, if not originate, an AM QSO. 4.) Repeat steps 1 - 3 as often as required to chase dem Blues away! for those who may have joined our Program Already in Progress: http://www.arrl.org/tis/info/am.html will provide a jumping-off point for more info. I can also tell y'all (preaching to the choir here) that the 'discovery' of Boatanchor AM has re-vitalized my interest in HF work, and I plan to run real FSK RTTY at some point as well... Cheers John KB6SCO
Re: [AMRadio] The zeal to eliminate AM mode on the amateur bands.
SSB was devleoped by ATT in the 20's for use on the Trans Atlantic cable. No, it was used on longwave. The early transatlantic cable had so much capacitance that it could only be used for telegraphy, and at extremely slow speed. I don't think transatlantic voice cables were developed until mid 30's or even during or after WW2. BTW, an interesting exhibit regarding transatlantic cables is on display in the London science museum. I would highly recommend it to anyone who happens to visit that city. When I was last there about 5 years ago, the Science Museum was sort of a museum of a museum. Some of the dusty exhibits were so old they were museum pieces themselves, but I thought it was extremely interesting, with more appeal to me than most modern day multi-media museum displays. Hope all that stuff is still there. Much old radio apparatus as well. Don k4kyv
Re: [AMRadio] Drying out HV transformers / Chokes
Read it closely, MY PLANS ARE TO REWIND IT. Thats about as plane as it gets. Regards, Gary...WZ1M - Original Message - From: Geoff [EMAIL PROTECTED] To: Discussion of AM Radio amradio@mailman.qth.net Sent: Monday, September 19, 2005 5:50 PM Subject: Re: [AMRadio] Drying out HV transformers / Chokes GBrown wrote: Speaking of HV trannys for the BC-610. I have one with a shorted secondary. My plans are to rewind this hunk of iron and turn the primary into a dual voltage, 115/230. This tranny is from the E model. Would I have anyone out there that mite be interested? Also, the transformer has those big beautiful cast endbells. interested... in? rewinding it? Buying it? rewinding and retapping it for dual primaries? ya gotta talk a bit clearer than that, to communicate ;-) -- 73 = Best Regards, -Geoff/W5OMR __ 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
[AMRadio] Hammarlund HX-500 Transmitter
Hello...doe anyone have a Hammarlund HX-500 transmitter? I have some questions on it. Thanks, Dave N7RK -- *** Dave N7RK Boatanchors Home Page: http://members.cox.net/n7rk Phoenix, Arizona *DXCC Honor Roll**WAZ#22 - 75 Meter SSB* ex-XE2/N7RK, N7RK/ZB2, VK2ERK, ZM0AJN, WB6NRK, WN6IWX Boatanchor and Antique Radio Collector
[AMRadio] The matter of AM Windows
Jack, W9GT has mentioned the shortcomings of having an AM Window when the benefits are not reciprocal with the users of other, incompatible modes. I've come to the conclusion that we don't do ourselves any favors by constraining ourselves to such windows. In so doing, we fail to help utilize vacant spots elsewhere on the dial where an AM QSO can be supported without causing interference. On the other hand, disrespectful incursions into established conversations can be deemed intentional interference. Chronic, documented cases can trigger enforcement by the FCC. It's not mode specific. But let's be positive. By moving elsewhere, we have opportunities for a pleasant exchange with others unaccustomed to finding AM. By inviting them to join such a QSO, it allows them to consider the allure of our nostalgic speciality. I've personally done this with great success on or about 3837Kc, the location of the Sunday AM gathering of the Antique Wireless Association. Regards, Paul/VJB __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [AMRadio] Drying out HV transformers / Chokes
So, you want someone to rewind it for you? You want someone to buy it, after you've rewound it? You said My plans are to rewind this hunk of iron and turn the primary into a dual voltage, 115/230. ... Would I have anyone out there that mite be interested? IN WHAT? I'm sorry, you are -NOT- being clear about it. There's more than two ways that your statement could be interpreted. That's not 'plain'[sic]. -- 73 = Best Regards, -Geoff/W5OMR
Re: [AMRadio] The matter of AM Windows
Well, I must be mellowing. I have to agree with Paul. Constraining AM QSO's to an imaginary window (since for the most part, only AM'ers really acknowledge that it exists) can be counterproductive. Unless you like 6, 8, 10, 14 member roundtables, grab the receiver tuning knob and find a vacant spot elsewhere on the dial and then move the VFO dial there. I have called CQ numerous times on AM, out of the imaginary window, and have been answered by AM'ers. Many times I get answered by SSB'ers who don't realize I'm on AM, and after telling them so, they press that AM button their transceiver, and we have a great QSO. Some even comment that this was the first time they tried that button. It always winds up being an enjoyable experience for both sides and we get to spread the super sound of AM. Pete, wa2cwa On Mon, 19 Sep 2005 16:55:13 -0700 (PDT) VJB [EMAIL PROTECTED] writes: Jack, W9GT has mentioned the shortcomings of having an AM Window when the benefits are not reciprocal with the users of other, incompatible modes. I've come to the conclusion that we don't do ourselves any favors by constraining ourselves to such windows. In so doing, we fail to help utilize vacant spots elsewhere on the dial where an AM QSO can be supported without causing interference. On the other hand, disrespectful incursions into established conversations can be deemed intentional interference. Chronic, documented cases can trigger enforcement by the FCC. It's not mode specific. But let's be positive. By moving elsewhere, we have opportunities for a pleasant exchange with others unaccustomed to finding AM. By inviting them to join such a QSO, it allows them to consider the allure of our nostalgic speciality. I've personally done this with great success on or about 3837Kc, the location of the Sunday AM gathering of the Antique Wireless Association. Regards, Paul/VJB
Re: [AMRadio] The zeal to eliminate AM mode on the amateur bands.
Since Don mentioned the AM Forum, I would encourage those that have not visited lately to come take a look. The forum now has over 800 members; is more feature rich (you can post pictures, files from your PC, colors, fonts, animation, etc.) and lots of great info gets posted. Simple to join and tons of pleasure. http://amfone.net/Amforum/index.php Likewise AMFONE web site has tons of info to browse. http://amfone.net/index.php Pete, wa2cwa On Mon, 19 Sep 2005 21:27:08 + Donald Chester [EMAIL PROTECTED] writes: Coincidentally, I posted a message on the AM Forum about an hour ago, on this very subject. Since there are participants on this reflector who do not monitor the AM Forum, I have copied it here.
[AMRadio] Anyone have?
Does anyone have a junker 75A2 out there? I need the ferrite core for my 10 meter antenna coil. Am not sure if the A1 or A3 is the same, or any other for that matter, but would bet they could be. If anyone has something they would sell or trade, I would be appreciative. Please email direct to limit extraneous messages on the board. 73 Jim W5JO
