Re: [AMRadio] Odd signals in lower 80 meters
From: Anthony W. DePrato [EMAIL PROTECTED] guess what that same group that somehow got into the arrl in the late 60's and early 70's are the same group that runs it today. the Prez. is just a figure head with no power just does what little Mr Sunshine up there tells him to do and say. the rest follow suit or are soon replaced. glad someone told the story about the dumbing down of qst. Ham Radio Mag the last real ham tech mag went by the wayside years ago. i still have every copy. Ham Radio was a good technical publication. Unfortunately, it did not survive the great dumb-down of the 1970's-80's, and I think its demise was a great loss for amateur radio. One problem I had with it, though, was that the late editor, Jim Fisk (now SK) was strongly anti-AM and was reluctant to even admit that the mode existed, despite the fact that there was ample AM activity on the lower frequency bands at the time and that the renewed interest in AM was steadily growing. I recall one particular news item that clearly showed this bias, in one of the issues during the FCC's Docket 20777 proceeding, which was proposing to deregulate amateur AM out of existence below 28.5 mHz. The article said something to the effect that 160m AM enthusiasts are just now learning of their peril. At that time there indeed was some regular AM activity on 160m, which was still under LORAN frequency and power restrictions, but the vast majority of AM activity was on 75m, and most of this was in the Northeastern part of the country, so there was no excuse for anyone at Ham Radio to not be well aware that 160m activity made up only a small fraction of the overall AM activity that was rapidly coming back to amateur radio. Fisk was just refusing to admit that AM was playing any significant role in amateur radio at the time. Nevertheless, I do recall that some articles on specialised methods of AM detection made it into HR Magazine during its final years. Don k4kyv ___ This message was typed using the DVORAK keyboard layout http://www.mwbrooks.com/dvorak/ http://gigliwood.com/abcd/ __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
Anthony, Don and Everyone else- I had the privilege (?) of serving as ARRL Rocky Mountain Division Vice-Director for two consecutive terms. At that time, terms of office were two years (1990-1994). --- D. Chester [EMAIL PROTECTED] wrote: From: Anthony W. DePrato [EMAIL PROTECTED] guess what that same group that somehow got into the arrl in the late 60's and early 70's are the same group that runs it today. the Prez. is just a figure head with no power just does what little Mr Sunshine up there tells him to do and say. the rest follow suit or are soon replaced. glad someone told the story about the dumbing down of qst. Ham Radio Mag the last real ham tech mag went by the wayside years ago. i still have every copy. Ham Radio was a good technical publication. Unfortunately, it did not survive the great dumb-down of the 1970's-80's, and I think its demise was a great loss for amateur radio. One problem I had with it, though, was that the late editor, Jim Fisk (now SK) was strongly anti-AM and was reluctant to even admit that the mode existed, despite the fact that there was ample AM activity on the lower frequency bands at the time and that the renewed interest in AM was steadily growing. I recall one particular news item that clearly showed this bias, in one of the issues during the FCC's Docket 20777 proceeding, which was proposing to deregulate amateur AM out of existence below 28.5 mHz. The article said something to the effect that 160m AM enthusiasts are just now learning of their peril. At that time there indeed was some regular AM activity on 160m, which was still under LORAN frequency and power restrictions, but the vast majority of AM activity was on 75m, and most of this was in the Northeastern part of the country, so there was no excuse for anyone at Ham Radio to not be well aware that 160m activity made up only a small fraction of the overall AM activity that was rapidly coming back to amateur radio. Fisk was just refusing to admit that AM was playing any significant role in amateur radio at the time. Nevertheless, I do recall that some articles on specialised methods of AM detection made it into HR Magazine during its final years. Don k4kyv One of my continuing issues with ARRL is that of non-documentation. For example, CQ Magazine is subscription only and not a membership organization unlike the League. Yet, in each monthly issue there is a self addressed post-card for responding to that issue's survey questions. They then report the results in a future issue. The League could do something similar with QST. It could also do the same survey on their website. Collection of this data can be compiled for computer storage and report in an upcoming issue of QST. It can also be used for their Board and other committee activities. So why do they not do this? Unfortunately, the answer is obvious. I got tired of hearing, The members in our Division support/do not support an issue. Who does or doesn't(not by name and callsign)? Where is a documented survey to back up a given position? Sorry I do not remember the FCC Docket number but remember in the late 60's (I think it was 1968-1969) Incentive Licensing? Please correct me if I am wrong but I thought the League supported it. As a result, many of their members by the thousands dropped their membership for years to come. Naturally this adversely effected League membership numbers along with the amateur radio community. Unfortunately, after all these years the League and their higher-ups have not learned their lesson. Survey, Document, Report, etc. Just my two cents worth if that. Bob K5SEP ARRL Member since 1969 ARRL Life Member since 1976 Need a quick answer? Get one in minutes from people who know. Ask your question on www.Answers.yahoo.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: {SPAMFILTER} Re: [AMRadio] Odd signals in lower 80 meters
Hi Bob: you are correct It is a good buddy club. what we like and want is what the hams like and want . je i got so sick of that crap years ago. back in the 50's if i recall QST had little card for your comments placed inside. then sometime in the early 60's that stopped. what we need is a mass house cleaning up there and start over .cut the head off the beast CEO first then see what the yes boys do hihi.. 73 Tony Anthony W. DePrato WA4JQS QCWA # 23602 10X # 3621 A1-OP FISTS # 10573 VBA # 55 AMI # 1274 NCDXF # 1036 RNARS # 1309 SKCC # 1227 DXCC PHONE DXCC RTTY DXCC CW Lis. 1962 Calls Held VP8BZL VP8SSI 3Y0PI V31SS ZD8JQS WA4JQS/ZS1 WA4JQS/4K1 WA4JQS/KC4 __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: {SPAMFILTER} Re: [AMRadio] Odd signals in lower 80 meters
AMEN!! --- Anthony W. DePrato WA4JQS [EMAIL PROTECTED] wrote: Hi Bob: you are correct It is a good buddy club. what we like and want is what the hams like and want . je i got so sick of that crap years ago. back in the 50's if i recall QST had little card for your comments placed inside. then sometime in the early 60's that stopped. what we need is a mass house cleaning up there and start over .cut the head off the beast CEO first then see what the yes boys do hihi.. 73 Tony Anthony W. DePrato WA4JQS QCWA # 23602 10X # 3621 A1-OP FISTS # 10573 VBA # 55 AMI # 1274 NCDXF # 1036 RNARS # 1309 SKCC # 1227 DXCC PHONE DXCC RTTY DXCC CW Lis. 1962 Calls Held VP8BZL VP8SSI 3Y0PI V31SS ZD8JQS WA4JQS/ZS1 WA4JQS/4K1 WA4JQS/KC4 __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
Correct John - you have seen through the whole stinking, disgusting mess.. I was a loyal League member for several decades. However, they have gone from bad to worse up there. It is a shame, and they have done a LOT to ruin amateur radio. I dropped my membership a year or two ago, I am less active in amateur radio than I used to be, and the actions of ARRL and some other misguided groups are the reason. I still enjoy a good QSO now and then, but the amateur service is dying a painful death. Tony, you are absolutely correct. The ARRL is a POLITICALLY closed organization. When one looks at the progression of Presidents from SCM, to Directors, to Vice President and then on to President, it is obvious that they are handpicked to get into the line of progression by the shrimpy little CEO. If you speak up, you don't stay long and don't go anywhere in the ARRL organization. If you don't sell your soul to the devil, you will never even get an appointed position. You must learn to get your prayer rug and bow to Newington and learn to chant mighty is the ARRL and its' CEO, who is all seeing and all knowing. I have spoken by positions to ex-President Haynie and the local SCM via email as well as the present President, when he was a VP, and each time has resulted in HOSTILE DENIALS and attacks upon me. I met the CEO of ARRL at the National Convention in the 80s, in Baton Rouge, when he was an anointed VP and I never met a more aloof, rude, and egotistical so-called servant of the people. I dropped my life time membership before completing payment of the entire amount it. I now take QST only to learn where the hamfests are going to be. I usually read a QST in less than five minutes and it wouldn't take that long if I didn't look at the advertisements. We all know that the advertisers greatly influence the political positions of ARRL. The ARRL stages skirmishes with the FCC allegedly for we Amateurs to appear that they are fighting for us, but those skirmishes are merely to make us think that they are really fighting for no code and other issues and all the time the FCC and ARRL are plea bargaining a trade off so they both get what best serves the interest and agenda of each. Folks hold up while I get my fire suit onMerry Christmas and Happy New Year!!! 73, John, K5PGW __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
PM, PM, fix it Bry!! 73 DE K0NG (am I allowed to say DE on the AM reflector now??) __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
. Forced 'dumbing down' of QST (and other pubs other than the Handbook) was dictated by the GM. NBVM was believed by that GM to be the 'second coming' of SSB and it was promoted shamelessly in QST Jay W1VD SNIP Hi Jay: AMEN guess what that same group that somehow got into the arrl in the late 60's and early 70's are the same group that runs it today. the Prez. is just a figure head with no power just does what little Mr Sunshine up there tells him to do and say. the rest follow suit or are soon replaced. glad someone told the story about the dumbing down of qst. Ham Radio Mag the last real ham tech mag went by the wayside years ago. i still have every copy. Merry Christmas Tony QBE ZUT DE WA4JQS ANTHONY W. (Tony) DePrato WA4JQS EXTRA - HEAVY Since 1962 CQ DX HALL OF FAME # 35 A1-OP FISTS # 10573 SKCC #1227 South Sandwich Island Dxpedition Group CALLS HELD: WA4JQS/ZS1, WA4JQS/KC4, WA4JQS/4K1 ZD8JQS, V31SS, VP8BZL, VP8SSI, 3Y0PI __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
Tony, you are absolutely correct. The ARRL is a POLITICALLY closed organization. When one looks at the progression of Presidents from SCM, to Directors, to Vice President and then on to President, it is obvious that they are handpicked to get into the line of progression by the shrimpy little CEO. If you speak up, you don't stay long and don't go anywhere in the ARRL organization. If you don't sell your soul to the devil, you will never even get an appointed position. You must learn to get your prayer rug and bow to Newington and learn to chant mighty is the ARRL and its' CEO, who is all seeing and all knowing. I have spoken by positions to ex-President Haynie and the local SCM via email as well as the present President, when he was a VP, and each time has resulted in HOSTILE DENIALS and attacks upon me. I met the CEO of ARRL at the National Convention in the 80s, in Baton Rouge, when he was an anointed VP and I never met a more aloof, rude, and egotistical so-called servant of the people. I dropped my life time membership before completing payment of the entire amount it. I now take QST only to learn where the hamfests are going to be. I usually read a QST in less than five minutes and it wouldn't take that long if I didn't look at the advertisements. We all know that the advertisers greatly influence the political positions of ARRL. The ARRL stages skirmishes with the FCC allegedly for we Amateurs to appear that they are fighting for us, but those skirmishes are merely to make us think that they are really fighting for no code and other issues and all the time the FCC and ARRL are plea bargaining a trade off so they both get what best serves the interest and agenda of each. Folks hold up while I get my fire suit onMerry Christmas and Happy New Year!!! 73, John, K5PGW Anthony W. DePrato [EMAIL PROTECTED] wrote: . Forced 'dumbing down' of QST (and other pubs other than the Handbook) was dictated by the GM. NBVM was believed by that GM to be the 'second coming' of SSB and it was promoted shamelessly in QST Jay W1VD SNIP Hi Jay: AMEN guess what that same group that somehow got into the arrl in the late 60's and early 70's are the same group that runs it today. the Prez. is just a figure head with no power just does what little Mr Sunshine up there tells him to do and say. the rest follow suit or are soon replaced. glad someone told the story about the dumbing down of qst. Ham Radio Mag the last real ham tech mag went by the wayside years ago. i still have every copy. Merry Christmas Tony QBE ZUT DE WA4JQS ANTHONY W. (Tony) DePrato WA4JQS EXTRA - HEAVY Since 1962 CQ DX HALL OF FAME # 35 A1-OP FISTS # 10573 SKCC #1227 South Sandwich Island Dxpedition Group CALLS HELD: WA4JQS/ZS1, WA4JQS/KC4, WA4JQS/4K1 ZD8JQS, V31SS, VP8BZL, VP8SSI, 3Y0PI __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
AMEN JOHN You will not get a rebuttal from me on this. I agree and know this first hand . 73 Tony WA4JQS __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
If I'm not mistaken, when NBVM didn't catch on in general, the company turned it's attention toward the security market using the technology as a 'scrambler'. They had a pretty big investment in their LSI chips to recover. Perhaps this is all one in the same. I remember the League really pushing the technology, as the latest revolution. Maybe a good name for it would have been super slopbucket. I could imagine how crappy the audio must sound over the air. ARRL jumped the gun, and featured it on the full front cover of QST, only to reveal inside the magazine nothing more than an announcement that a technical article was coming soon. Nothing else was mentioned about it until a few issues later. I seem to recall an article, but it was mostly about a commercial product produced by one company. The greater amateur community never paid much attention to it. But I recall some slopbucketeers about that time complaining about AM, and saying that it took a lot of balls to run DSB AM on the band, especially now that QST was about to reveal a new technology that would make even conventional SSB unnecessarily wide. I can imagine that if the technology had caught on, that it would have amplified the calls to outlow AM. Don k4kyv __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
I remember the League really pushing the technology, as the latest revolution. Maybe a good name for it would have been super slopbucket. I could imagine how crappy the audio must sound over the air. ARRL jumped the gun, and featured it on the full front cover of QST, only to reveal inside the magazine nothing more than an announcement that a technical article was coming soon. Nothing else was mentioned about it until a few issues later. I seem to recall an article, but it was mostly about a commercial product produced by one company. The greater amateur community never paid much attention to it. Don In the 'for what it's worth' department... Beginning in the early to mid 70's the Technical Department at ARRL no longer exercised much control over the technical content of QST. Forced 'dumbing down' of QST (and other pubs other than the Handbook) was dictated by the GM. NBVM was believed by that GM to be the 'second coming' of SSB and it was promoted shamelessly in QST over the objections of the Technical Department. Jay W1VD __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
On 12/22/06, D. Chester [EMAIL PROTECTED] wrote: If it is a simple scrambling system that works by inverting the audio - making the lower frequencies come out high and vice versa, they could easily be decoded by copying as SSB in the opposite sideband position and offsetting the carrier frequency by whatever the tone frequency in the inverter is. When copying in the opposite sideband, that is exactly what happens - the lower frequencies come out the highest and vice versa. The audio inverter scramblers were designed for landline telephone use, and maybe for AM or FM radio use. I think the audio is being inverted BEFORE being transmitted, therefore simply selecting USB or LSB would make no difference. If I'm thinking right, it would sound the same on any mode. Actually these signals are likely even more complex than simple audio inversion. Looking at the spectrum on these shows a very even distribution of audio energy, no sloping at the high end, etc. I suspect they are mixed with some reference signal, compressed, normalized, etc., then transmitted. Regardless, no matter what detection method I use, I can make no sense of the signal. -- Suburbia is where the developer bulldozes out the trees, then names the streets after them. - Bill Vaughan __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
Possibly the old NBVM (narrow band voice modulation) system debeloped by Dr. R.J. Harris and published in QST Nov. Dec. 1978. There was a limited production run of commercial units, and a hard sell to the ARRL and commercial SSB users followed, however the concept never caught on. Imagine there are still units floating around. A brief overview of the system can be found here: http://www.qsl.net/vk5br/NarBandVoice.htm Details are in the QST articles. Being in on the original testing, I can say it was darn near impossible to get any intelligence from the 'folded over' signal. Jay W1VD __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
On 12/23/06, Jay Rusgrove [EMAIL PROTECTED] wrote: Possibly the old NBVM (narrow band voice modulation) system debeloped by Dr. R.J. Harris and published in QST Nov. Dec. 1978. There was a limited production run of commercial units, and a hard sell to the ARRL and commercial SSB users followed, however the concept never caught on. Imagine there are still units floating around. A brief overview of the system can be found here: http://www.qsl.net/vk5br/NarBandVoice.htm Details are in the QST articles. Being in on the original testing, I can say it was darn near impossible to get any intelligence from the 'folded over' signal. Jay, that is really interesting! I'm going to forward the link to the guys at Flex Radio, as a Software Defined Radio could easily implement such a method. This could be what we have been hearing. Thanks for sending that info. Brian / w5ami __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
Jay Rusgrove wrote: Possibly the old NBVM (narrow band voice modulation) system debeloped by Dr. R.J. Harris and published in QST Nov. Dec. 1978. There was a limited production run of commercial units, and a hard sell to the ARRL and commercial SSB users followed, however the concept never caught on. Imagine there are still units floating around. A brief overview of the system can be found here: http://www.qsl.net/vk5br/NarBandVoice.htm Details are in the QST articles. Being in on the original testing, I can say it was darn near impossible to get any intelligence from the 'folded over' signal. Jay W1VD There were some rigs used back in the late 70's and early 80's, where the police departments became more aware of those citizens that were listening on scanners at home, to keep abreast with what was going on in their community... and they knew (know) that the crooks use them too, to try to stay a step ahead of the law. In Southern California, Pomona, specifically, there was a 'code' they used to go to the 'scrambled' mode; 'Gold'. Unit so-and-so, meet unit so-and-so on city-wide tack 2, 'gold'. Gold was the 'code' to 'go scrambled', so that no one else (outside of those officers who went and listened with their so-equipped rigs). A little circuit inside the rig, activated by a miniature toggle switch was all that was required. I've head these signals on 75m in the evening hours, and I thought that was -exactly- how it sounded. If the high-end response is replaced by the low-end response, there won't be a high-end roll-off... you'd hear the equivalant of the low-end roll-off, and pretty much, it's fairly dramatic at around 100hz, in those commercial communication services. Like most of y'all, though, I had never heard of that system being used on SSB. Let the Pumkin Pie be served! Pour the Egg Nog, and warm the filaments! It's time to celebrate! CHRISTMAS (_or_insert_your_celebrated_holiday_here_) Is here! It's time to enjoy the fellowship and commraderie of your fellow AM'ers. It's RADIO TIME! -- Ho Ho, Mo-Fo! 73 = Best Regards, -Geoff/W5OMR __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
Brian, Geoff If I'm not mistaken, when NBVM didn't catch on in general, the company turned it's attention toward the security market using the technology as a 'scrambler'. They had a pretty big investment in their LSI chips to recover. Perhaps this is all one in the same. Jay W1VD __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
If it is a simple scrambling system that works by inverting the audio - making the lower frequencies come out high and vice versa, they could easily be decoded by copying as SSB in the opposite sideband position and offsetting the carrier frequency by whatever the tone frequency in the inverter is. When copying in the opposite sideband, that is exactly what happens - the lower frequencies come out the highest and vice versa. The audio inverter scramblers were designed for landline telephone use, and maybe for AM or FM radio use. Don k4kyv __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
[AMRadio] Odd signals in lower 80 meters
Has anyone beside Don/KYV and myself heard these odd sounding voice signals between 3700 and about 3750 that seem to be sideband, but can not be tuned in either lower or upper sideband? They seem to be all over the place, however no one else has said a thing about them except Don on amfone.net. They sound like inverted audio, however it would seem that going to the opposite sideband would allow you to tune them, but it doesn't. Maybe I'm not thinking clearly on Inverted audio. If not, would someone straighten me out? I started a thread on another list, and it's as if no one has heard them, and I am now getting the feeling I'm losing my marbles! 73 Brian / w5ami -- There is nothing more uncommon than common sense. -- Frank Lloyd Wright __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
Maybe they are the digitized audio from the AR9000 digital voice device that converts SSB into digital signal that is decoded by another AR 9000. I think that is the model number of the device made by AOR and is advertised in QST magazine 73, John, K5PGW --- A.R.S. - W5AMI [EMAIL PROTECTED] wrote: Has anyone beside Don/KYV and myself heard these odd sounding voice signals between 3700 and about 3750 that seem to be sideband, but can not be tuned in either lower or upper sideband? They seem to be all over the place, however no one else has said a thing about them except Don on amfone.net. They sound like inverted audio, however it would seem that going to the opposite sideband would allow you to tune them, but it doesn't. Maybe I'm not thinking clearly on Inverted audio. If not, would someone straighten me out? I started a thread on another list, and it's as if no one has heard them, and I am now getting the feeling I'm losing my marbles! 73 Brian / w5ami -- There is nothing more uncommon than common sense. -- Frank Lloyd Wright __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
RE: [AMRadio] Odd signals in lower 80 meters
I haven't listened on 80 for those signals but I have herd similar to what you describe in the past. A few years ago there were several companies selling scramblers that inverted the audio. A lot of them went into South America and were used by people for their private radio networks. I would guess many were not licensed users. You can not decode it by switching side bands. It is simply done by mixing the speech with an audio tone and everything comes out upside down. The high frequencies come out as low frequencies and the low frequencies come out at high frequencies and they are offset by the mixing tone frequency. If you listen carefully you can make out a word once in awhile. 73 Gary K4FMX -Original Message- From: [EMAIL PROTECTED] [mailto:amradio- [EMAIL PROTECTED] On Behalf Of A.R.S. - W5AMI Sent: Tuesday, December 19, 2006 12:05 PM To: Discussion of AM Radio in the Amateur Service Subject: [AMRadio] Odd signals in lower 80 meters Has anyone beside Don/KYV and myself heard these odd sounding voice signals between 3700 and about 3750 that seem to be sideband, but can not be tuned in either lower or upper sideband? They seem to be all over the place, however no one else has said a thing about them except Don on amfone.net. They sound like inverted audio, however it would seem that going to the opposite sideband would allow you to tune them, but it doesn't. Maybe I'm not thinking clearly on Inverted audio. If not, would someone straighten me out? I started a thread on another list, and it's as if no one has heard them, and I am now getting the feeling I'm losing my marbles! 73 Brian / w5ami -- There is nothing more uncommon than common sense. -- Frank Lloyd Wright __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Odd signals in lower 80 meters
I've heard them here in Mississippi. I also have heard them between 3600 and 3625, and sometimes around 3530 - 3540. The scrambler explanation sounds reasonable, as they remind me of the scrambled audio often used by law enforcement agencies in the early and mid 80s. __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
