A satellite antenna can be made from 3 mm copper or aluminum elements, PVC boom, and some parts you may already have at home. To download the plan (highest-resolution), click here.
1. All measurements are in millimeters (mm).
2. Use 3 mm copper or aluminum elements.
3. Adjust the critical gaps for lowest SWR (adjust the 14 mm and 22 mm gaps as needed).
4. Only the VHF elements (Moxon part) are connected to the feedline. The UHF element (325 mm) closest to the feedpoint is the UHF driven element. It is not connected to the feedline, but resonates only when the proper gap is achieved.
5. The feedline connects directly to the radio (no diplexer/duplexer needed).
6. Use translucent plastic insulator from an RG8 cable for the 14 mm Moxon gap
7. Use non-metallic boom (wood or orange PVC pipe).
8. The feedpoint gap is 10 mm.
9. The antenna works with any dual-band UHF-VHF radios
10. For inquiries, email me at du1au@nightskyinfocus.com
To view all posts on amateur radio, click here.
Related links:
Download Satellite Antenna Plan
Accessing Amateur Radio Satellites
DIY Satellite Radio Wins Go-Kit Contest
Night Sky in Focus
Astronomy and Amateur Radio
Welcome to the 400th Ask Dave video! Ken, VE7ZY, is having trouble with an 80m dipole mounted very closely to the roof flashing. He is seeking other a... Read more
Nick, KC3PWJ, has a flagpole and also a pole that holds up his VHF/UHF discone. He’d like to string a 20m dipole between the two poles, but is w... Read more
Flip, W4FLP, asked about options for wideband antennas for the popular RSP-DX software defined radio from SDRPlay. We cover three that should work fin... Read more
Antenna, Loop, Magnetic, 20-10M, 125 W PEP, Each Magnetic- loop antennas have existed almost since radio began. The recent resurgence of interest in t... Read more
A slightly different form of hybrid is the Chameleon Emcomm II.The Emcomm II is a portable antenna, which can also be very good to use as a base stati... Read more
Antenna
80M Antenna with HOA Constraints
Can I Put One End of a Dipole Next to my VHF Antenna?
Wideband Antennas for SDR Radios
Bushcomm Horizon Multi-Band Loop Antennas LOOP-20
Chameleon EmComm II Amateur Ham Radio Antenna Review
Image credit: Otava Tuomi. Early last year, when the outbreak of coronavirus (COVID-19) first pushed much of the world into lockdown, one traditional... Read more
JS8Call Overview and Settings 2021 Read more
Tad Cook, K7RA, Seattle, reports: On April 12, new sunspot group AR2814 appeared following 5 days of no sunspots. Daily sunspot numbers on the next 4... Read more
Devin, KM4ENW, asks how to ground his 2m/70cm radio in his RV. I show how to use the frame of the RV as a good counterpoise. Read more
A 5-year, $9.3 million National Science Foundation (NSF) grant will allow the University of Alaska Fairbanks (UAF) Geophysical Institute to establish... Read more
https://youtu.be/Tti4AZUa458 Read more
“My good friend Joel, KC4WZB, loaned me his brand new Yaesu FTdx10. When I say loaned, I mean he picked it up at Ham Radio Outlet and brought it... Read more
Donald de Riggs, J88CD, on the Caribbean island of St. Vincent, says that on April 13, the 42nd anniversary of the 1979 eruption of the La Soufriere v... Read more
“I’ve always been facinated by the physical affects of RF. Today, a light experiment testing if can cook hotdogs with RF. The test incorpo... Read more
The FCC has announced that rule changes detailed in a lengthy 2019 Report and Order governing RF exposure standards go into effect on May 3, 2021. The... Read more
Home but never alone: Celebrating World Amateur Radio Day
JS8Call Overview and Settings 2021
The K7RA Solar Update
How do I Ground My Transceiver in a Recreational Vehicle
National Science Foundation Funds Creation of Research Lab at Alaska’s HAARP
An Earth-Directed Stealthy Storm Launches as Activity Bumps Up | Solar Storm Forecast 04.14.2021
FTdx10 & FT-991A SSB Receiver Comparison
St. Vincent Radio Amateurs on Alert During Volcano Emergency
Can You Cook A Hotdog With Ham Radio?
Updated Radio Frequency Exposure Rules Become Effective on May 3