[TenTec] RX-320

[Duane Grotophorst]

Unless TT eventually releases a new firmware ROM (no
FLASH ROM here) there won't ever be true synchronous
AM in an RX-320. There may also be an issue of the
ADSP-2101 DSP processor not truly being up to that
task. While the ADSP-2101 is very similar to the
ADSP-2181 of the Pegasus/Jupiter/RX-340/R-X350 it is
not quite as capable (25 vs. 40 MIPS if I recall
correctly). 

No doubt though a great bang for the buck receiver. If
you are only interested in general SWLing and ham band
monitoring it can't be beat. If you want to be a bit
more aggressive with what you do then the 1200-Baud
RS232 quickly becomes a limiting factor. The lack of
FM, RF gain control, and noise reduction/blanking may
also factor in depending on what you want to do. 

What we should really be doing is pestering the folks
at Ten Tec to do is use the ADC and 32 bit DSP circuit
designs of the Orion and re-purpose them into an
updated version of the 320 (RX-321 perhaps?). Throw in
a USB serial (at minimum) or better yet an Ethernet
interface. Such receiver would really boost the
bang/buck ratio.

Duane
N9DG 

 
--- Mike Hyder  -N4NT- <N4NT at charter.net> wrote:
> What I wonder is if anybody has gotten it to receive
> synchronous AM.
> 
> Mike N4NT
> 
> ----- Original Message ----- 
> From: "John L Merrill" <jmerrill1 at adelphia.net>
> To: <tentec at contesting.com>
> Sent: Monday, December 09, 2002 7:58 PM
> Subject: RE: [TenTec] RX-320
> 
> 
> > Since there is no TXCO, how much does it drift,
> typically?
> > 
> > John N1JM
> > 
> > -----Original Message-----
> > From: tentec-admin at contesting.com
> [mailto:tentec-admin at contesting.com]On
> > Behalf Of Mark Erbaugh
> > Sent: Monday, December 09, 2002 1:58 PM
> > To: wa3fiy at radioadv.com; Carl Moreschi;
> tentec at contesting.com
> > Subject: Re: [TenTec] RX-320
> > 
> > 
> > Also, no FM reception. I agree, it's a great
> receiver. 
> > 
> > Mark
> > 
> > ----- Original Message ----- 
> > From: "WA3FIY" <wa3fiy at radioadv.com>
> > To: "Carl Moreschi" <n4py at earthlink.net>;
> <tentec at contesting.com>
> > Sent: Monday, December 09, 2002 13:07 PM
> > Subject: Re: [TenTec] RX-320
> > 
> > 
> > > On 8 Dec 2002 at 23:14, Carl Moreschi wrote:
> > > 
> > > > The only real differences are no attenuator,
> no rf gain control, no
> > > > noise blanker, no noise reduction, and no auto
> notch.  Also, it runs
> > > > at 1200 baud instead of 57600 baud so it
> responds much slower to
> > > > comands and is easy to overrun with software
> commands.  But it's
> > > > receiver performance is surprisingly good.  I
> rate it the best
> > > > receiver buy in ham radio.
> > > > 
> > > I concur.   May be one of the best kept secrets
> around.
> > > 
> > > I like to have an RF gain on a receiver so I
> simply wired a 500 
> > > ohm pot between the antenna cable and the
> antenna input 
> > > connector.   Really helps when the band is full
> of BIG signals.
> > > 
> > > -73-
> > > 
>

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