December 27, 2017

Third Antenna

Can’t get enough antenna. One end of my lot to the other is 133ft, which is just about enough for an 80m off center fed dipole. This antenna requires a 4:1 balun. I went with an MFJ again because of price and because it had next day Amazon Prime. At some point I will upgrade to a Balun Designs I think, because they make one with a built in choke for antennas installed above buildings. 80m OCF dipoles are pretty cool because they are resonant on 80m, 40m, 20m, 17m, 12m and 10m. With the tuner I was able to make FT8 contacts on 160m, 60m, 30m and 6m also, I’ve read that this can overheat the balun and break it but a guy from the club that also has an 80m OCFD says he’s never had a problem running it on non-resonant bands. I traded out the PVC mast for fence top rail. I tried using 2 connected together to get higher but couldn’t get it in the tripod myself so I settled for a single 10ft piece. I will be coming back at some point to raise it up and also replace the RG8X with LMR400.

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