[evlatests] ea24 L-band
Rob Long
rlong at nrao.edu
Tue Nov 24 16:59:14 EST 2020
Hello everyone,
We have an L-band receiver on ea24 that has an oscillating LNA. This
oscillation is severe enough that it is radiating out of the feed
interfering with other bands as well. We can see SDRs jumping around on
S, C and X-bands when the L-band biases are jumping around. When we turn
off the biases, the SDRs return to normal on all other bands. We put the
L-band in standby for the night and would like to swap this receiver on
ea24 in the morning.
I spoke with Gene and he doesn't see a problem, but I wanted to float
this around to make sure there is no problem. Please let me know as I
will assume that no response is the same as permission! LOL
Thanks,
Rob
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