My Ham Equipment
I have the following ham equipment-
- Icom IC746 Transceiver
- Icom IC-229H 2 meter Transceiver
- Alinco DR-130 2 meter Mobile
- MFJ MFJ-1260 Microphone Switch
- LDG Electronics IT-100 AutoTuner
- Neewer NW-700 Studio Microphone
- MFJ MFJ-1270 TNC
- Diamond CP-22E 2 meter vertical base antenna
- Homebrew 20m Magnetic Loop antenna
Ham Radio Projects
Here is some of my projects I made for ham radio. Some are printed with a Tevo Michelangelo 3d Printer.
A Mini Digital DC Voltmeter 0.28 Inch Two-Wire 2.5V-30V and dual Anderson Powerpoles connectors. Case was designed in Blender.
Case size 45mm wide 35mm high 60mm deep, with a dual Anderson holder printed separately.
20meter Magnetic Loop Antenna
A home made 20 meter magnetic loop antenna with a homebrew high voltage capacitor. Since I'm in an apartment with no way to put up any type of large antenna, I decided to make this loop and place it on my balcony. Plans were taken from a 20 meter loop designed from SM0VPO, with a high voltage capacitor made from two pieces of copper clad pc boards separated by a kitchen cleaning sponge. A printed screw and round nut provides the manual adjustment. A 1:1 balun was made and placed inside a printed case. All tubes made from 3/4" pcv pipes. Instead of trying to tie wrap the cross pipes, I instead used a pvc cross pipe connector.
Pre-Assembly, finished with the wiring of the loops. Curly is doing Quality Assurance.
High voltage capacitor, two pcboards, 35mm X 30mm, separated by a kitchen sponge. A 3d printed adjustment screw and nut is used to compress/decompress the distance between the two plates. This was a trial and error, since the original size from the SM0VPO page was 60mm X 60mm, but the distance between the two plates to make this resonant was way beyond the spacing of the adjustment screw, so I had to make the capacitance smaller by making the two plates smaller. I can get the swr down to near 1.1:1 but the bandwidth is very narrow, usually around 40KHz wide before I have to readjust.
The box containing a toriod core for a 1:1 balun. The feed coax is coming out the left side of the box. It is glued and zipped tied to the horizontal pvc rod.
The antenna sitting on the balcony table. I picked up a snare drum tripod stand, the bottom half, from Goodwill and the pvc pipe slides right over it. It's not locked down on the tripod so I can rotate it around.