So I found myself a nice little comm antenna at the fly market, a Mooney-7002 that looked to be in great condition. Price was right as a desk ornament so if I can use it as an actual antenna I?d be quite pleased. The retro look is pretty slick in my opinion I have some questions about testing it with my also newly acquired MFJ-259C, which I?m waiting on a BNC adapter for.
If I get a SWR below 2 at the various test frequencies (118, 127, 135) does that guarantee I won?t fry my 430 when I hook it up?
Is it necessary to test the antenna as-installed to determine if it?s radio safe? Rather, can this be determined without needing a ground plane?
Throwing my ohmmeter on the 7002, I see the center conductor and BNC terminal are electrically connected. In fact the center conductor appears to also be connected to the mounting screw studs, is this normal? I checked my brand new ACK ELT antenna and these are isolated from each other, but I recall this can vary between antennas so I thought I?d ask.
Is there anything else I should test than the SWR? I?m just learning the basics of antenna theory and that seems like it?s the most useful.
If I get a SWR below 2 at the various test frequencies (118, 127, 135) does that guarantee I won?t fry my 430 when I hook it up?
Is it necessary to test the antenna as-installed to determine if it?s radio safe? Rather, can this be determined without needing a ground plane?
Throwing my ohmmeter on the 7002, I see the center conductor and BNC terminal are electrically connected. In fact the center conductor appears to also be connected to the mounting screw studs, is this normal? I checked my brand new ACK ELT antenna and these are isolated from each other, but I recall this can vary between antennas so I thought I?d ask.
Is there anything else I should test than the SWR? I?m just learning the basics of antenna theory and that seems like it?s the most useful.