[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
>>
>>
>>
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