The original question was sparked by having a radio (HF frequencies) that no one can hear transmissions from. The transmission line includes surge protectors, baluns, and HF coax and connectors. Of course there could be dozens of different reasons for the problem but I wanted to troubleshoot by removing the antenna from the surge protector (the ¡°last¡± component in line) and measuring for real power there. Yup, the question should have been watts and not amps.
I have a DVM and can take a measurement between SO-239 inner conductor and shield, if that will tell me anything.
If I find expected TX power at the last component before antenna, then I¡¯ll know that none of the transmission line components are bad and that the radio is producing power. If not, then I¡¯ll work backwards along the transmission line to zero in on the problem.
