[Amps] S/S Amp's
Roger (K8RI)
k8ri at rogerhalstead.com
Thu Sep 12 20:14:54 EDT 2013
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 at contesting.com] on behalf of Joe Subich, W4TV [lists at subich.com]
> Sent: Thursday, September 12, 2013 2:29 PM
> To: amps at 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 at 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
>>
>>
>>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
More information about the Amps
mailing list