Re: RT-100 has a Dead Short
|
Thanks everyone for the responses. I should have mentioned?that the RT-100 is tower-mounted, so checking it at the unit is problematic?for me.? Mike Z.'s response is what I was expecting to?see toward the RT-100 from the radio end. It seems to me that if you're feeding DC voltage down a coax to supply power to a device that you wouldn't want to see a dead short. The time-constant variation makes sense, as the DC blocking / RF pass capacitor is being charged by the voltage?from the ohmmeter and the only other DC path would be the circuitry inside the RT-100 that might have an indication on the ohmmeter. It sounds like my RT-100 has a problem. I'll have to arrange with my buddy to come climb my tower to get it resolved. Thanks again for the responses everyone. -Paul WB0GXD
I looked at both connectors (with no cables attached)? on my operating RT-100. Either polarity of the leads show an open circuits. There was a time-constant variation of resistance? on the connector labeled "radio", with a readings of around 1-3 megohms.
Mike N3PM
?
|
