continuity testing

TLE911 LLC.

Member
Jan 2, 2016
58
Nebraska
can anyone run me through on how to conduct a proper continuity test on coaxial cable and mobile Radio antenna using multimeter believe I know but want to verify have to rule out cable and antenna as being the problem for this radio thank you
 

Jarred J.

Lifetime VIP Donor
May 21, 2010
11,585
Shelbyville, TN
positive on shield, negative on tip.. (or vice versa) if it beeps you got a problem check on both ends..

you wouldnt try to do a conductance on the antenna itself because it is a dc short.

maybe you want to check the nmo or whatever its mounted to
 

MtnMan

Member
Dec 20, 2012
1,533
Eastern PA
1 D/C the antenna connector from the radio.
2 Center pin of connector to antenna whip should have continuity.
3 Shell of connector to body ground should have continuity.
4 Center pin to shell should not have cont.

The above will rule out an open or short. More precise testing will require an SWR meter.
 

shues

Lifetime VIP Donor
May 21, 2010
10,295
NW Indiana
Once you've followed MtnMan's steps, then I'd suggest using a forward and reflected power meter. Something like a Bird 43 would be reasonable.
 

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