A V/U Handheld Moxon Antenna for Satellites

The Completed MoxonAs per my last post, I have been getting pretty excited about working satellites. However relying on the little ‘rubber duck’ antenna that came with the IC-T90A hand held does limit the range in a way that I could only really work the satellites at high elevation angles. With costs of commercial V/U antennas for satellite work usually over $200 AUD, it was time to build my own.

I did have some constraints around the antenna design:

  • It had to cost under $50 to make.
  • No speciality materials required – I could either readily purchase from a shop, or I already had materials on hand.
  • It had to be made using tools I had on hand.

The last point ruled out making a crossed yagi antenna to my standards as it would require a drill press to successfully fabricate (I am bad at drilling square!)

In the end a quick google found me looking at making a Moxon designed by LY3LP and modified by M1GEO, but I really wanted to get some close ups of some of the more important parts of the build. What follows is an abbreviated build guide with photos. In all, it took less than 2 hours to construct.

Update 22/12/2018 2.15pm – Yep, this antenna is a winner – here is the audio from the AO-91 pass @ 2018-12-22 1342 AEDT. Big improvement – action starts at around 2mins in.

Read moreA V/U Handheld Moxon Antenna for Satellites

My First Satellite Contacts with AO-92

I’d only ever heard it was possible to work amateur satellites with hand held radios, and all the accompanying photos usually involved waving around a modest sized handheld Yagi. All that changed when I saw a posted a video posted on the Central Coast Amateur Radio Club Facebook page showing AO-92 being worked with Yaesu VX8 handheld with an after-market whip antenna.

A quick check of the passes saw really favourable conditions to work AO-92 as it passed overhead on Friday 14th December 2018 from around 11.22pm local time.

I quickly set up the frequencies in my IC-T90A, gave a couple of friends a heads up to listen for me and waited.

Read moreMy First Satellite Contacts with AO-92