Heath IM-2410 problem

[reds1964]

Hello All,
I have a Heath IM-2410 frequency counter and it seems to have a problem. It seems to lack sensitivity especially at the lower frequencies. I plugged it directly into my IG-102 and it would not lock onto any frequencies except around 20-30 mc's and then it still jumped around some. I can key my 2-meter rig and it will lock onto that signal using a short length of wire at the counter input. Was this just not a very sensitive counter or am I expecting too much? I know the output from the signal generator is fairly low but it seems that it would be able to lock on when it is plugged directly into the rf output. It would not lock on any other way either except as I mentioned before when the frequency was on the higher end. Any help would be appreciated.

Thanks es 73's
Carl Miller KA5KAB
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