Perseus has a 50 ohm input Mark, while a long wire, especially for
NDB frequencies is high impedance. Some sort of matching
transformer and likely a separate ground rod for the antenna side
would probably help.
I can post a diagram later today if that doesn't already tell you
everything you need to know.
best wishes,
Nick
At 04:30 08-11-14, you wrote:
I'll be playing radio at Grayland Beach State Park Tuesday through
Thursday. Day time will be Ham stuff, but nights and mornings I
want to record NDBs on the Perseus with a long wire. Any advice on
matching, grounding etc? Do I need a preamp? Thanks, Mark, KE7MSU
Sent from my iPad
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