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Hi Group,
Have a MFJ-269 here (new toy) and did a bit of expermienting with the TV antenna over the Christmast weekend, I have one of those 13 element antenna from radio shack, I don't know the exact part number. I tied the MFJ-269 into the 300 ohm to 75 ohm balun at the antenna. The antenna being about 20 feet up on the house peak. Looking at the impedances I got, nothing really looked good at the TV frequencies as I would have expected. If the match is this bad, I would expect alot of loss from the fact that I run 75 ohm cable down from this antenna to the TV set. Could my reading be mis-leading since the balum is a 4:1 going from 300 ohm to 75 ohm? Has anyone done this before and posted the data? I would be interested to see. I don't have my data in front of me at this time so I don't have any measurements to post. I really find the MFJ-269 an exceptional device for the antenna experimenter. Tnx de KJ4UO |
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