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SWR Problem

AK321

Active Member
Oct 31, 2014
158
85
38
Murray KY.
I have a Radiooddity QT 60 connected to a Tram 1498 via 50' of TM LMR 400. I connected it to my Maverick 250, then my LP 100A after the amplifier. The radio sees an SWR over 3.5 with the amp on, but the LP 100A reads 1.4. at the output. Without the amplifier online, the radio and LP 100A see 1.3. If the radiio is seeing an SWR of 3.5, I assume it's not safe to run it. My question, is what are the possible causes?
 

2W deadkey, 18W PEP. The grid tune knob does nothing when trying to adjust it. I thought that in itself was strange. This amp was shipped to me, and I'm wondering what got damaged in shipment.
 

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