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

[Ed]

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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