On 9/12/2013 4:14 PM, Fuqua, Bill L wrote:
Most hams today can't tune SSB clearly.
There are many valid reasons for that. We tune to make the audio sound
normal. For me, if a station adjusts their audio to add 200 Hz on the
low side, I will tune almost exactly 200 Hz high. Two times recently
the other station kept telling me I was 200 Hz high. I asked him to
remove the 200 Hz he'd added to the lows and I was right on frequency.
He randomly turned the 200 Hz on and off and every time I shifted
frequency. So the problem is as much stations transmitting a non
typical audio.
I had the same situation with one other.
We have all sorts of permitted modulation. If they want to run AM for a
bit of nostalgia, I have no problem with that. I don't operate AM, but
I don't demand they stop.
So they're a bit wider, but seldom wider than an over driven amp with
poor IM.
73
Roger (K8RI)
AM always sounds right. Perhaps we should have SSB reduced carrier rather than
suppressed carrier. Another point, DSB occupies same bandwidth as AM.
You could receive DSB or AM by detecting, using bfo and SSB filter, only
one sideband but with the loss
of 3dB signal to noise ratio compared to receiving it with synchronous detector.
73
Bill wa4lav
________________________________________
From: Amps [amps-bounces@contesting.com] on behalf of Joe Subich, W4TV
[lists@subich.com]
Sent: Thursday, September 12, 2013 2:29 PM
To: amps@contesting.com
Subject: Re: [Amps] S/S Amp's
For the same reason they spam other bands with ESSB, IM products,
keyclicks, splatter and/or full carrier AM - because they can and
the rules against stupidity, and bad operating practices either do
not exist or are not enforced.
73,
... Joe, W4TV
On 9/12/2013 12:14 PM, qrv@kd4e.com wrote:
Why are Hams still rf-spamming 160 & 80m with AM carriers
when a DSB suppressed-carrier signal is just as good, uses
less power, and may be sync-detected to remove flutter, etc?
I know, I know, ... never mind ... sigh.
Jim said;
"It sure would be nice to just rectify the 120vac from the wall plug,
with
or without any isolation xfmr"
It's already in production.
Not quite what you're after but... <http://www.k7dyy.com/>
http://www.k7dyy.com/
David G4ZOW
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