Ralph, there is a simple explanation of why you need DSP.
First the industry builds radios for us with much more sensitivity than we
actually need, especially on the low bands, amplifying everything including
the noise.
Then they tell us we need DSP to reduce the noise and add it on for an extra
few hundred bucks.
The magazines do a whoopee-sh@t on how well the DSP reduces the noise and
Joe Ham swallows it.
Seems the old radios didn't need the DSP.
When the noise got bad we reduced the RF gain and just forfeited the S-meter
in exchange for good reception.
So what.
Now Ten-Tec has solved that bit too, with an S-meter that always reads
accurately, regardless of preamp, ATT or RF gain setting.
There are times where DSP in the audio line will reduce the white noise.
An external Audio DSP in the speaker or headphones line solves that and can
be used with all the transceivers in the shack; you don't have to buy it
over and over again with each transceiver.
AND DSP IF filtering does save on expensive Xtal filters. And it does have
steep skirts. So I have to admit that this added value to the radios.
73 - Rick, DJ0IP
(Nr. Frankfurt am Main)
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Ralph
Arnold
Sent: Thursday, August 21, 2014 5:36 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] OMNI-D Series C
Hi Alex I also have one TenTen Omni D Bought it last July while up in
Mich. What a great Receiver low noise floor. I thought it had a weak front
end but when I adjusted the ant resonate Gang Busters. I was really
impressed. for an old radio I don't see what all the whoop pla is about DSP
if you got a good desing like that. Gota go just thought I would throw
in my two cents worth. 73s KD8BTQ Ralph
On Thu, Aug 21, 2014 at 7:47 AM, Alexander N. Gerli <ac1wye@gmail.com>
wrote:
> Hi folks! Well, something new and different in the shack. I've been
> licensed since my 'teens (1964). It may have taken a few years (!),
> but I just got my first Ten Tec xcvr! My OMNI-D is loaded and has the 255
P/S.
> Even though it dates from the 1980s, it is a really nice radio. The
> first thing I noticed was the RX noise floor - very quiet. The counter
> timebase was off about 100Hz for WWV, and that was an easy adjustment.
> Beats me why I waited so long to get one of these. It is one fine rig.
>
> Anxious to get on one of the Sunday Nets.
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
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