I built a simple six element 70cm Yagi antenna today in hopes of hearing some of the mounbounce signals from the Arecibo radio telescope in Puerto Rico on Apr 16, 17, 18. Found a simple plan online and I used a piece of scrap wood for a boom and some 12 gauge copper wire that I had left over from another project for the elements. I trimmed down a piece of RG-58 with a BNC connector for the feedline and soldered it to the driven element. I then secured my Yaesu VX-7R to the boom with a tie strap. Connected the feedline to the radio then went outside to give it a test. I backed the power on the handheld down to low power which I think is half a watt (500mw) and pointed in the direction of the 442.700 repeater. I brought the repeater up with no problem and had the receive at full scale. I decided to test the directional characteristics of the antenna by turning it away from the repeater and sure enough just the slightest deviation and I lost the repeater. That's exactly what I was looking for, a very narrow and directional beam. We'll see how I make out over the next few days. Total time of construction and testing was about 30 minutes.
I am a member of the Coastal Amateur Radio Society and the Mighty Eighth Air Force Museum Radio Club and am currently serving as a new ADEC Metro Atlanta ARES. I am also a communications unit director with the Georgia Baptist Disaster Relief Communication Team and a volunteer with the Red Cross SAF (Service to Armed Forces). Been married to Lorie for 31 years and have five children ranging from age 18 to 29. I have one son that served as an Infantryman in the US Army who served in Iraq and a daughter that is serving in the Georgia National Guard. Ooooooaaahh!!!
Yaesu FT-857D for HF and UHF Yaesu FT-2800M for VHF Kenwood TS-440S Kenwood PS-50 Power Supply Kenwood SP-430 Speaker Kenwood MC-60 Desk Mic Astatic D-104 Desk mic Yaesu VX-7R Quad Band Handheld Radio Shack Pro-96 Digital Scanner Astron SS-25M DC Power Supply RIGrunner 4008 DC Power Panel LDG Z-11 Pro Autotuner MFJ SWR Wattmeter LDG FT Meter Yaesu MD-100 Desk Mic RadioShack External Speaker G5RV for 80M thru 6M G5RV Jr. for 40M thru 10M Homebrew J-Pole for VHF/UHF Homebrew ground plane for 2m/70cm RS ground plane ant for Scanner Comet CF-416 Duplexer MFJ-259B Analyzer Dell 530S to run all radio related sw Ham Radio Delux Program Echolink Program Winlink Program Bu-Tel ARC96 Scanner sw La Cross WS-3610 Weather Station B&D Portable Power Station Honeywell HW2000i generator
Mobile Station Components
Yaesu FT-857D for HF Yaesu FT-1802M for 2 meters Icom ID-800H for UHF and D-STAR Yaesu VX-2R HT for portable op RS Dual band magmount antenna Low profile magmount for 2 meters Low profile magmount for scanner High Sierra Sidekick antenna for HF