[Premium-Rx] Ten-Tec RX-340 - Amateur Use

[Carcia, Francis A HS]

The more I hear about this receiver the cooler it sounds!
Now for a plus 40 dBM IP3 in the second mixer.   fc

-----Original Message-----
From: Cecil Acuff [mailto:chacuff at cableone.net]
Sent: Tuesday, February 08, 2005 9:14 AM
To: Carcia, Francis A HS; premium-rx at ml.skirrow.org
Subject: Re: [Premium-Rx] Ten-Tec RX-340 - Amateur Use


I believe the Ten-Tec Orion has implemented multiple, selectable roofing 
filters.  I would imagine it's in the primary receiver though which I also 
believe is limited to the Amateur bands only.  I'm not sure the secondary 
receiver which is General Coverage takes advantage of that technology.

Don't own one though...

Cecil...
----- Original Message ----- 
From: "Carcia, Francis A HS" <francis.carcia at hs.utc.com>
To: <premium-rx at ml.skirrow.org>
Sent: Tuesday, February 08, 2005 7:10 AM
Subject: RE: [Premium-Rx] Ten-Tec RX-340 - Amateur Use


>        I find this quite interesting. I think a prepost filter ahead of 
> the
> new SDR hardware will be required. The tuned RF stage
>    in the R390A does a good job of stripping out wide band crud. Multiple
> Roofing filters is an option no receivers have yet
>    have a big effect on performance. I still think the SDR needs a stage 
> of
> conversion to an IF with multiple roofing filters
> ahead of the bit bashing. fc
>
> -----Original Message-----
> From: Walter (Volodya) Salmaniw [mailto:salmaniw at shaw.ca]
> Sent: Monday, February 07, 2005 11:21 PM
> To: Williams, Barry
> Cc: premium-rx at ml.skirrow.org
> Subject: Re: [Premium-Rx] Ten-Tec RX-340 - Amateur Use
>
>
> At 07:20 AM 2/7/2005, you wrote:
>
>
>
> Before I went any further I wanted to check and see if any of the RX-340
> owners had tried the receiver on the ham bands, particularly in a CW 
> pileup.
> It would also be interesting to see if anyone has used the RX-340 to 
> listen
> to a weak AM signal within 10 kHz of a very strong signal.  I did some
> listening tests with my HF-2050 and it appears to work pretty well, even 
> in
> a pileup on 7010.  On the other hand, the filters in the HF-2050 are not
> very sharp as compared to modern DSP filters.
>
>
> Hi, Barry.  I have a Ten Tec 340, as well as a HF-2050, an Icom 756ProII, 
> a
> R390A with a SE-3, and a AOR 7030+ which are often on at the same time, so
> A-B-C-D-E testing is possible.  Of all these receivers, (and this is only 
> my
> opinion), the Ten Tec performs the worst on MW with a strong adjacent
> signal.  The MW dxers out there are well aware of this fact and have gone 
> to
> some trouble installing roofing filters to correct the poor performance.
> For the longest time, I A-B'd the 2050 and the 340 and virtually in every
> instance, the 25 year old 2050 out gunned the 340 by a long shot.  I was 
> all
> set to sell the 340, but it's performance on HF is really very good, and
> with ERGO4 computer control, it's a very nice set up.  The 7030+ is an
> excellent performer in close, as is the 756, and of course nothing seems 
> to
> bother the old Collins R390A.  I know several of my MW colleagues have 
> added
> the roofing filter on the 340 which improves the performance markedly, and
> they seem very pleased, but at the price of losing the wide audio 
> bandwidths
> available in the 340..........Walt.
>
>


----------------------------------------------------------------------------
----


> _______________________________________________
>
> Premium-Rx Mailing List
> To Post: premium-rx at ml.skirrow.org
> For Info: http://ml.islandnet.com/mailman/listinfo/premium-rx
> Visit the Website: http://kahuna.sdsu.edu/~mechtron/PremRxPage/
>