RBethman comments: <<As to SSB, the KWS-1 IS fine. As to AM - It transmits a carrier and ONLY one SIDEBAND. Thereby being POOR for DSB with carrier since it ONLY O-N-E sideband with CARRIER.>>
This is the same way the video portion of a TV signal has been transmitted for over 50 years! What is wrong with SSB-AM? Vestigial SB? Bob Macklin K5MYJ Near Seattle, Wa "Real Radios Glow In The Dark" ----- Original Message ----- From: "RBethman" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" <[email protected]> Cc: <[EMAIL PROTECTED]> Sent: Friday, April 06, 2007 8:37 PM Subject: Re: [AMRadio] Re: GB> AM vs SSB??? Apparently you DIDN'T read Grant's post. That is WHERE the KWS-1 was spoken about. Try: <http://www.collinsradio.org/html/kws-1.html> As to SSB, the KWS-1 IS fine. As to AM - It transmits a carrier and ONLY one SIDEBAND. Thereby being POOR for DSB with carrier since it ONLY O-N-E sideband with CARRIER. Therefore my comment that IT has ISSUES! I have owned an S-Line station with 312B-4. Precisely a 32S-3A, 75S-3A, and a 516F-2 power supply in the external speaker As to which amplifier used is UNIMPORTANT. Albeit I do prefer the 30S-1. SSB is fine for narrow bandwidth comms. It's one reason that Uncle Sam went to it. For pure audio quality, I much prefer my BC-610 or T-213 with either my SP-600 and/or the R-390A. >> The KWS-1 has issues in that it transmits ONLY one sideband NOT both. >> >> That is precisely WHY I passed by the one that was/is <eventually> >> available WITH the matching receiver. Both are completely restored. >> >> As such - it is a POOR example to cite for "AM vs SSB" > > First a transmitter that transmits both sidebands is NOT SSB. SSB > means exactly SINGLE SIDE BAND. If a transmitter transmits both > sidebands it is DSB for Double Side Band...unless it also wastes time > with the carrier then it is AM. > > And I did not refer to the KWS1 when I said the Collins properly tuned > had great audio. Or, actually I said it didn't sound like donald > duck. BUT...my 1958 S-Line, 32S1, 75S1 and 30L1 does have great audio > that sounds like you are sitting across the room from the other party. > > It was precisely because of the audio that in 1958 I fell in love with > the Collins S-Line series of communication gear. > > > Jim Isbell ______________________________________________________________ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. ______________________________________________________________ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
