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

[Charles Steinmetz]

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