I removed the 4 khz roofing filter I previously had added to my rx340. I
never really found any practical real world benefit from it.
Carl Moreschi N4PY
Franklinton, NC
----- Original Message -----
From: "Jim Reid" <jimr.reid@verizon.net>
To: <tentec@contesting.com>
Sent: Monday, March 22, 2004 4:16 AM
Subject: Re: [TenTec] Orion vs. RX-340 TT Rcvrs.
>
> > I would be interested to know how the 340 compares to
> > the Orion "sub" receiver. I thought that they were pretty
> > much the same.
>
> Oh my goodness, NO, there is no favorable comparison
> at all! That is why I use the 340 as the Orion subrcvr via
> Carl's software. The benefit to the 340, first of all:
>
> 1. You would use the sub to find the stations to which
> the DX is responding, correct?? You are probably on
> the mainland, and might live in a metropolitan area in
> which there are many other folks trying to call to the
> DX around the split frequency area. The 340 has the
> strong front end parameters to prevent overload to
> your rcvr among those local power signals plus, the
> 340 filters have very steep skirts; steeper than the
> Orion sub rcvr, absolutely. Carl, N4PY, posted characteristics
> of the 340 DSP filters long ago.
>
> 2. Well, I give up, there is just too much benefit to using
> the 340 in place of the Orion sub rcvr to go into detail, but
> the above, point 1, is certainly the principal benefit. The
> rest depends upon a lot of real time parameters controlling
> at the time you are operating.
>
> 3. I suppose it is obvious that the 340 is better than the
> Orion subrcvr for all other "non amateur band" operation,
> especially for AM SWL interests.
>
> Enough; the 340 is in a separate class completely!! And
> I do not plan to install Carl's 5 kHz roofing filter mod in my
> 340 'cause I don't use it that way. BTW, Carl, at last report
> had found no particular use for his installed narrower roof
> filter. The 340 front end is just so "strong", that he has yet,
> evidently, to have found a need for it.........still true, Carl??
>
> Best and 73 to all, Jim KH7M
>
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