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steelcobra · 09-07-2008, 11:15

I'm currently working with a variant designed from electron's specs he gave me using the materials readily available that we have in our commo shop. Using RG213 as the radiators, it gets solid VSWR for an improvised antenna, but I'm having issues correcting the impedance. When connected directly to a PSC-5, it gets a crystal clear transmit, with light static receive.

I tried using a sleeve balun (non-radiating model constructed from a 1/4 wavelength copper tube around the cable, then electrically connected to the sleeve opposite the connector, worked for a UHF dipole) but though it improved the VSWR, it still didn't function through the cable. I'm thinking of trying a choke balun next, but stuck trying to figure out the diameter/coil length.

09-07-2008, 11:15	#32
steelcobra Asset Join Date: Sep 2008 Location: FT. Carson, Co Posts: 33	I'm currently working with a variant designed from electron's specs he gave me using the materials readily available that we have in our commo shop. Using RG213 as the radiators, it gets solid VSWR for an improvised antenna, but I'm having issues correcting the impedance. When connected directly to a PSC-5, it gets a crystal clear transmit, with light static receive. I tried using a sleeve balun (non-radiating model constructed from a 1/4 wavelength copper tube around the cable, then electrically connected to the sleeve opposite the connector, worked for a UHF dipole) but though it improved the VSWR, it still didn't function through the cable. I'm thinking of trying a choke balun next, but stuck trying to figure out the diameter/coil length. __________________ Voice of the Reaper!
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