Subj : Re: building an antenna To : mark lewis From : Ed Vance Date : Fri Jun 14 2019 20:56:00 06-13-19 15:16 mark lewis wrote to all about building an antenna Howdy! Mark, ml> @MSGID: <5D02D5B5.9581.fi_ham@capitolcityonline.net> ml> this is somewhat on the topic of HAM but the actual use is not... i ml> don't know where to look for the information i'm seeking... ml> here's the scenario: ml> i need to make an external UHF HD antenna... ml> i do not have any funds available... ml> i found plans for a UHF antenna online and printed them out... -BIG SNIP- I started reading Your message and after TEN Lines I decided to tell You how I made a UHF TV Antenna. I used a piece of 300 Ohm Twin Line cable to make a Folded Dipole Antenna a bit over 26 Centimeters long for UHF Channel 32 back in the 1960's. Channel 32 had just come on the Air and it's Transmitter was about 4 miles from where I lived. We bought a UHF to VHF Tuner for the upstairs VHF TV Set, and needed a antenna up there, I knew enough to make a antenna by looking in some books for Charts and Formulas and made it. Channel 32 uses the Band of Frequencies from 578 Mc. to 584 Mc. |<---------------------- 26 CM ------------------------>| = 1/2 wave length --------------------------------------------------------- | | -------------------------- ----------------------------- | | | | | | Another piece of 300 Ohm Twinline | | <-- to Antenna Terminals on UHF Tuner I stripped the wires on each end and soldered them together. I folded the cable end to end to find the center, then I cut one of the wires at the center, and attached another piece of 300 Ohm Twin Line to each of the center wires for a feed line to the UHF Tuner. I taped the Home Brew "Antenna" to the wall. It worked! You could use a 2 pieces of PVC pipe and a TEE to enclose the Folded Dipole or DUCT TAPE the antenna to a board, to make it an External Antenna. <<<<<<<<<<<<<<< BRAGGING MODE ON >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I told a neighbor about the antenna I made and was asked if I would make one for them, so I went to the Wire Box, grabbed a length of 300 Ohm Twin Lead, put it together and fastened it to the neighbors UHF Tuner. >>>>>>>>>>>>>>>>>>>>>> BRAGGING MODE OFF <<<<<<<<<<<<<<<<<<<<<<<<<<<<< 73 de Ed W9ODR . . .... Have you checked your smoke detector batteries & Fire Ext, LATELY?! --- MultiMail/MS-DOS v0.49 * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .