[Premium-Rx] LF receiver & modem

[Terry O']

Many WJ-8618B will tune down below 20 MHz, but there were only a few 
variants that had an actual VLF front end.  You can tell from the 
backside because there were two antenna terminals.  If memory serves me 
right one was labeled 5kHz - 6 Mhz and the other 6-500 MHz.  They 
upconverted to 6 MHz, tuning down to a few kHz and performed pretty well.

Terry O'



On 4/2/2020 7:25 PM, Ben Mesander via Premium-Rx wrote:
> I have a Marconi MSK5030 LF receiver. Are there any signals on LF that it could potentially demodulate? I have a WJ 8618B(S1) receiver which I haven't used in a number of years, but I believe this tunes LF?
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