[Premium-Rx] WJ8711A-3 special government edition to sale

[Arthur Delibert]

My understanding is that WJ and Ten Tec were working jointly on a new receiver for the government, but the jointness ended when WJ suddenly put out a consumer version of the receiver, i.e., the HF 1000.

Given the similarities, I do wonder why the 8711 is 20 inches deep while the RX-340 is only 12 inches deep.  It makes one easy to fit into the shack and the other difficult.

-- Art Delibert

________________________________
From: premium-rx-bounces at mailman.qth.net <premium-rx-bounces at mailman.qth.net> on behalf of Joseph Pistritto <jcp at pistritto.org>
Sent: Friday, October 18, 2019 3:42 AM
To: Ed <aidehua at aol.com>
Cc: Premium-Rx at mailman.qth.net <Premium-Rx at mailman.qth.net>
Subject: Re: [Premium-Rx] WJ8711A-3 special government edition to sale

I have a Tentec RX-340 and this radio *looks* a lot like that one.  Are
they actually similar design or completely different?
  -jcp-


On Fri, Oct 18, 2019 at 12:27 AM Ed via Premium-Rx <
premium-rx at mailman.qth.net> wrote:

> Agree with you, Charles. I have had the HF-1000A (.10 firmware) and the
> 8711A firmware side-by-side and the 1000 sounds warmer on broadcast. But
> for data modes, the 8711 is better.
>
> The 1000 also has a plastic PTO shaft that need not be grounded like the
> 8711, which reduces digital noise.
>
> Thanks,
> Ed
>
> > On Oct 18, 2019, at 10:00 AM, Charles Steinmetz <csteinmetz at yandex.com>
> wrote:
> >
> > Joseph wrote:
> >
> >> In the case of the WJ8711, there are many models: WJ8711, WJ8711-1,
> WJ8711A-1, WJ8711A-3 and in each model the eprom versions have also evolved
> >
> > Yes, *however*: Frequently, the many firmware differences between
> versions of W-J (and other) sigint receivers have very little meaning for
> SWLs, merely (for example) that they handle some obscure comms protocol
> that the contracting customer needed in order to integrate the rx into
> their system, or that the radios have a different roofing filter designed
> for some particular duty, which is not as useful as an older and supposedly
> "lesser" version for general SWL use.
> >
> > I have owned several versions of the WJ8711-type receivers, and the one
> that was most useful to me was the HF1000.
> >
> > Best regards,
> >
> > Charles
> >
> >
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