Dear LF Group,
Larry wrote:
Not all AR-88's are the same either. Some have the 915 kHz IF while
others have the 455 kHz and I do not remember which have which....
Larry
VA3LK
I recently bought an AR88LF receiver - this is more or less the
same as the AR88D, but with the MF bands replaced with two LF
bands covering about 73kHz - 540kHz. The IF frequency on this is
735kHz.
As far as I can see, the "diversity" feature provides for the linking
of the AGC lines in a number of receivers. In this way, the receiver
getting the strongest signal effectively mutes the others. Old
editions of Terman's 'Radio engineering' describe this, saying it
can be used for polarisation- or space diversity reception on HF.
I intend to try the AR88LF on 136kHz when I have sorted out the
selectivity switching - somebody seems to have "realigned" the IF
stages..... Can anybody provide me with a manual for the 'LF
version? - I only have the 'D manual at the moment. All costs
reimbursed, of course.
Cheers, Jim Moritz
73 de M0BMU
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