Posts Tagged ‘beam’
Coat hanger 70cm beam
Some years ago, I was in need of a 70cms antenna for portable use and had to improvise by raiding my XYL’s wardrobe! The result was a 2 el Moxon antenna made in about 30 minutes which worked some impressive QRP (2.5W) DX into France on 70cms. Gain is quite low but all you need is a wire coat hanger and a few bits for insulation and to attach the coax feed. Simplicity! It does not look pretty, but it works. The mast was made from a short length of PVC pipe.
See https://sites.google.com/site/g3xbmqrp3/antennas/70cm_moxon .
LHS Episode #034: Orbital Decay
Richard is back and everything is right with the world--except Russ. Plans are in the works for setting up at the Dayton Hamvention. Many thanks to all of our listeners who donated to the cause. Our next donation goal, is $150 to get a noise gate for Richard. We know at least a couple listeners who should be happy about this, and we suspect there may be a few others out there. Of course, we're committed to improving the quality of the program whenever and wherever possible.
This episode is a little heavy on the radio side of things. However, don't be deterred. Richard gives us a lot of great information about satellite technology, concepts such as Doppler shift, transponders, antenna polarization, the science of orbits and much more which will appeal to your inner geek whether you're into ham radio, computers or just science and technology in general. Have a great week, and we look forward to seeing everyone in the chat for the next live recording on Tuesday, March 2nd.