[AMRadio] Re: Carrier with one sideband

2008-02-08 Thread Ellen Rugowski
Hi John, Actually almost all rice boxes since the late 80s or early 90s have had full DSB AM capability, 73, Ellen - AF9J John Coleman <[EMAIL PROTECTED]> wrote: I think most of the modern rice boxes are actually full double sideband. By modern, I mean in the last 5 years.

Re: [AMRadio] Re: Carrier with one sideband

2008-02-08 Thread Jim Tonne
Gents: I have posted on my website for a short period of time a utility that I think will be of interest to those following this thread. Go to: http://tonnesoftware.com/ModTutor.exe It is mathematically sound and should be operable on most winnder$ computers. And it is of interest that most o

Re: [AMRadio] Re: Carrier with one sideband

2008-02-08 Thread James M. Walker
Friday, February 08, 2008 11:44 AM Subject: RE: [AMRadio] Re: Carrier with one sideband Vectors and resultant graphs are shown at this site http://www.qsl.net/wa5bxo/amtech.html John, WA5BXO __ Our Main Website: http://www.amfone.

RE: [AMRadio] Re: Carrier with one sideband

2008-02-08 Thread John Coleman
before after the sound IF takeoff. John, WA5BXO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Macklin Sent: Thursday, February 07, 2008 5:39 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Re: Carrier with one sideband

RE: [AMRadio] Re: Carrier with one sideband

2008-02-08 Thread John Coleman
Vectors and resultant graphs are shown at this site http://www.qsl.net/wa5bxo/amtech.html John, WA5BXO __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Jim Tonne
Oh yes, I forgot to mention: VSB versus SSB versus "real" AM: VSB is NOT the same as SSB with carrier. VSB operates as DSB at lower modulating frequencies. As you raise the modulating frequency the signal becomes SSB. The reason VSB can sound better than SSB with carrier is that most of th

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Jim Tonne
Gary: Every single statement you made is true. SSB with one sideband sucks at high percentages of modulation. - Jim WB6BLD __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amra

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread k0ng
I agree, modern radios (Kenwood etc) generate DSB with carrier that can be set to the proper level. All TV Stations, up to going digital, used VSB WITH carrier but only for the video. The voice was 25 KHz FM Dev. Charlie, K0NG. __ Ou

RE: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Gary Schafer
PROTECTED] On Behalf Of Jim Tonne > Sent: Thursday, February 07, 2008 7:48 PM > To: Discussion of AM Radio in the Amateur Service > Subject: Re: [AMRadio] Re: Carrier with one sideband > > > Gents: > > First, this is my first post to this interesting group and I > hope y

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread jeremy-ca
re so much more linear than a SS brick. Carl KM1H - Original Message - From: "Ellen Rugowski" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" Sent: Thursday, February 07, 2008 7:57 PM Subject: Re: [AMRadio] Re: Carrier with one sideba

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Ellen Rugowski
- Original Message - Subject: Re: [AMRadio] Re: Carrier with one sideband > rbethman wrote: > > > > The "modern" SS rigs do NOT generate AM in that manner. Yes you're right - almost all SSB rigs from the 60s & 70s basically were one sideband and a ca

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Peter Markavage
Although not a true AM mode as the seasoned amateurs might define it, one sideband with carrier inserted, can work reasonably well, and does especially well in crowded band conditions. Actually Don, the last time we worked on 75 M, one early morning last Fall (or maybe late Summer), I was running t

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Ellen Rugowski
- Original Message - From: "jeremy-ca" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" Sent: Thursday, February 07, 2008 6:10 PM Subject: Re: [AMRadio] Re: Carrier with one sideband > I agree with Bob that the phasing rigs sound

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Jim Tonne
Gents: First, this is my first post to this interesting group and I hope you take what I have to say constructively. This business of SSB on AM, etc., is of interest to me on a technical basis. But let's do a computer simulation of this thing. To this end I have written a computer program

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Geoff/W5OMR
rbethman wrote: The "modern" SS rigs do NOT generate AM in that manner. The last radio that I saw that used a carrier with ONE sideband for AM was the Collins KWS-1. That is precisely why I did NOT procure one when the opportunity arose. Swan did the same thing. There was a 'carrier null

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Ellen Rugowski
- Original Message - From: "rbethman" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" Sent: Thursday, February 07, 2008 5:47 PM Subject: Re: [AMRadio] Re: Carrier with one sideband > > > The "modern" SS rigs do NOT g

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread jeremy-ca
- Original Message - From: "D. Chester" <[EMAIL PROTECTED]> To: Sent: Thursday, February 07, 2008 6:22 PM Subject: [AMRadio] Re: Carrier with one sideband From: Peter Markavage <[EMAIL PROTECTED]> A number of the early phasing type transmitters/exc

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread rbethman
The "modern" SS rigs do NOT generate AM in that manner. The last radio that I saw that used a carrier with ONE sideband for AM was the Collins KWS-1. That is precisely why I did NOT procure one when the opportunity arose. As to Vestigal SB, that INDEED is used in Amateur TV signals, howeve

Re: [AMRadio] Re: Carrier with one sideband

2008-02-07 Thread Bob Macklin
AM but may people just don't have access to a good Johnson transmitter or DX-100. Bob Macklin K5MYJ Seattle, Wa, "Real Radios Glow in the Dark" - Original Message - From: "D. Chester" <[EMAIL PROTECTED]> To: Sent: Thursday, February 07, 2008 3:22 PM Subject

[AMRadio] Re: Carrier with one sideband

2008-02-07 Thread D. Chester
From: Peter Markavage <[EMAIL PROTECTED]> A number of the early phasing type transmitters/exciters and SSB adapters allowed you to operate on "AM" with just one sideband. So, only operating DSB AM would really be an issue. From: "Bob Macklin" <[EMAIL PROTECTED]> Any of the Heath SSB ri