ridgescan
Member
Re: MW Images In LW Band
Just wanted to make an observation to all who are participating in WA8ZTZ's thread "Ham Tranceiver As LW RX" regarding my receivers here. First, I want to thank the guys over there for the low-pass filter suggestions. I will look for those.
But here's my point-it's very perplexing to me that my Icoms R75 and R71a, one a double-conversion and the other a triple conversion and both are legendary-each get strong MW images every 10kHz in LW. But here's the rub: my single-stage Realistic DX-160 gets NO images at all in LW! I wonder why that is. And this is with RF gain all-out and ant. trim full-on. LW is actually cleaner on that older, less complex rig. I wonder if it has something to do with the LW band in the DX160 not being as staunchly aligned to the tee as the other two? Or not being digital.
EDIT: I forgot to add something maybe important; the DX 160 runs via an Alpha Delta antenna switch to the Wellbrook loop.
Just wanted to make an observation to all who are participating in WA8ZTZ's thread "Ham Tranceiver As LW RX" regarding my receivers here. First, I want to thank the guys over there for the low-pass filter suggestions. I will look for those.
But here's my point-it's very perplexing to me that my Icoms R75 and R71a, one a double-conversion and the other a triple conversion and both are legendary-each get strong MW images every 10kHz in LW. But here's the rub: my single-stage Realistic DX-160 gets NO images at all in LW! I wonder why that is. And this is with RF gain all-out and ant. trim full-on. LW is actually cleaner on that older, less complex rig. I wonder if it has something to do with the LW band in the DX160 not being as staunchly aligned to the tee as the other two? Or not being digital.
EDIT: I forgot to add something maybe important; the DX 160 runs via an Alpha Delta antenna switch to the Wellbrook loop.
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