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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+Slightly\s+OT\:\s+SSB\s+vs\s+AM\s*$/: 15 ]

Total 15 documents matching your query.

1. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: mark@microenh.com (Mark Erbaugh)
Date: Tue Apr 22 11:43:12 2003
This is sort of related to the discussion on the list of late about HiFi SSB. I understand at a basic level the reason for improved performance of SSB over AM, i.e. only one sideband and no carrier.
/archives//html/TenTec/2003-04/msg00595.html (8,564 bytes)

2. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: w5yr@att.net (George, W5YR)
Date: Tue Apr 22 12:52:36 2003
Mark, to keep this response to a readable length, let me address only the first of your questions. The "other sideband" and the carrier contribute nothing to the transfer of information from A to B.
/archives//html/TenTec/2003-04/msg00596.html (13,027 bytes)

3. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: nq5t@attbi.com (nq5t@attbi.com)
Date: Tue Apr 22 13:27:35 2003
Ah, yes .. the technical stuff is all true. But AM is AM, very neighborly, and all the better for it :-) And the good news is that Ten-Tec has made the Orion a mighty fine sounding AM radio with exc
/archives//html/TenTec/2003-04/msg00597.html (8,517 bytes)

4. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer)
Date: Tue Apr 22 13:42:06 2003
The carrier and other sideband of AM make for simple detection. E.g. the crystal set, just a diode. The carrier does nothing but bias the diode detector, the other sideband is just the result of the
/archives//html/TenTec/2003-04/msg00598.html (10,493 bytes)

5. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: N4NT_Mike.Hyder@charter.net (Mike Hyder -N4NT-)
Date: Tue Apr 22 14:39:52 2003
How bout if we take a 7.2 MHz local signal modulated with SSB, then divide it by 10. Now if we demodulate the 720 kHz signal and use the resultant audio to modulate a new transmitted signal, we would
/archives//html/TenTec/2003-04/msg00599.html (12,012 bytes)

6. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer)
Date: Tue Apr 22 15:27:13 2003
Generally the divide by 10 circuit looses amplitude information. And the spectral compression depends on considering that the SSB signal can be approximated by sampling the instantaneous frequency ev
/archives//html/TenTec/2003-04/msg00600.html (10,998 bytes)

7. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: mark@microenh.com (Mark Erbaugh)
Date: Tue Apr 22 17:08:07 2003
How do the circuits they use on TV to keep the audio pitch the same when they speed up the tape work? I know they do that so that can shorten the program and squeeze in more commercials. I remember w
/archives//html/TenTec/2003-04/msg00606.html (8,647 bytes)

8. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: w8au@sssnet.com (w8au@sssnet.com)
Date: Tue Apr 22 18:26:09 2003
There was a commercial unit made, think it was called NBVM (narrow band voice modulation) or something similar. It comes to me that Henry radio produced it, or sold it..... (?) ......and Jerry was ri
/archives//html/TenTec/2003-04/msg00609.html (8,704 bytes)

9. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: n4py@earthlink.net (Carl Moreschi)
Date: Tue Apr 22 19:04:59 2003
Assuming you recorded your voice message on a tape recorder and played it back at half the speed, it would take twice the time to send the message. So we would be using half the bandwidth but twice t
/archives//html/TenTec/2003-04/msg00611.html (9,821 bytes)

10. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: mark@microenh.com (Mark Erbaugh)
Date: Tue Apr 22 21:14:38 2003
Carl, Yes, with that scheme we would change bandwidth for increased time. Kind of like how we can send a picture in SSTV, but it takes many seconds. However, I was proposing first doubling the speed
/archives//html/TenTec/2003-04/msg00616.html (11,146 bytes)

11. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: n4py@earthlink.net (Carl Moreschi)
Date: Tue Apr 22 21:34:36 2003
Mark, I'm glad you brought up the SSTV analogy. The problem is very similar. You have a certain amount of information to send. If you cut the frequencies in half and keep the time the same, I don't b
/archives//html/TenTec/2003-04/msg00617.html (13,300 bytes)

12. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: n9dg@yahoo.com (Duane Grotophorst)
Date: Tue Apr 22 21:38:36 2003
Yes I do remember the NBVM (ACSSB) units being advertised back in the late 70's early 80's. Sure didn't catch on then I suspect because it was relatively complicated and expensive. But you now have t
/archives//html/TenTec/2003-04/msg00618.html (9,696 bytes)

13. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: K3MIY@CSONLINE.NET (RON ZOND)
Date: Wed Apr 23 08:15:30 2003
Guys What you ae discussing is called time compressd speech. It has been around since the early fifties. There are tape recorders on the market (expensive) which incorporate this feature. There are a
/archives//html/TenTec/2003-04/msg00623.html (11,919 bytes)

14. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: mark@microenh.com (Mark Erbaugh)
Date: Wed Apr 23 09:30:38 2003
Duane, I think it would be even more feasible to implement something like that in PC / soundcard software. Once the mode has proven itself, we might get TT interested in incorporating it in their rad
/archives//html/TenTec/2003-04/msg00626.html (10,773 bytes)

15. [TenTec] Slightly OT: SSB vs AM (score: 1)
Author: mark@microenh.com (Mark Erbaugh)
Date: Wed Apr 23 09:30:56 2003
Ron, The thing that has changed is the capability of today's PC. I suspect that with appropriate software, a PC with a soundcard could to the same thing and the expensive tape recorders. I would susp
/archives//html/TenTec/2003-04/msg00627.html (13,813 bytes)


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