New portable Telescopic mast
Last month, I visited the fair in Beetsterzwaag and came across the booth by EPS Antennas. Among their array of intriguing equipment, a +/- 11m telescopic aluminum mast caught my eye. It was a...
Category: Homebrew
Fixing 10/11m 5/8 Vertical
During a field activation I noticed that my 10m 5/8L Vertical occasionally performed poorly. I soon discovered that a solder contact had broken loose. Probably due to transport. With some trickery I was able...
Battery Box upgrade
In the summer of 2023 I started using a LifePo4 battery. I had made this in a bag for the time being, with all electronics loose in the bag. Of course this will cause...
Tuner functionality added to Portable Setup
Portable Setup Upgrades April 2024 I’ve made some additions to my Portable Setup. Auto tuner added, with a wider tune range. BalUn added to work with ladderline. Tuning Aid added. Auto tuner I had...
Utility Boxes for Baluns & UnUn’s
Lately I’ve been working a lot with Baluns and UnUn’s and Chokes. I always needed a new housing for that. These are ultimately quite pricey and sometimes difficult to obtain. That’s why I spent...
CI-V Tuning aid for ICOM Radios
Updates 17-04-2024: Firmware v0.2 Almost every HF radio from ICOM has a Tuner connector, you know that white 4-pin connector at the back of your radio. Via this connector you can give a command...
Signal Splitter box
Due to illness I had to enjoy myself a bit at home with the moments when I felt a bit good. I had small projects that were already finished but still needed to be...
Portable ATV Receiver
A while ago I came up with the idea of building a portable ATV receiver. Important features of this receiver had to be: 1. Large screen with real noise (no fake noise) 2. Of...
New Symmetrical Antenna system for HF
I’ve been thinking about setting up a symmetrical antenna system for a while now. That is, Ladder line fed dipole. I did a bit of measuring and was able to stretch 2 x 9m...
Universal DCD for 1200bd Packet modems.
Since I’m working with packet again, you encounter all kinds of problems and then have to solve them again. The same now. I recently purchased an AEA PK-88 packet modem. Only this one has...
New Portable setup
The summer of 2023 has ended, as well as portable operations. What I have noticed during my activations is that QRP can be a lot of fun, but also too challenging. If you want...
Working satellites portable
On July 26, 2023, I gave a demonstration at the NVRA on how to connect via one of the TEVEL satellites. We were lucky, because on this evening we had a nice pass with...
Homebrew Manpack for my IC-705 and accesoires
If you have some time on the weekend to work portable. then you don’t want to spend a lot of time setting up and connecting my equipment. especially if this is the same setup...
ATV Receiver project
Some time ago, Hans PE1ICE developed a compact ATV Receiver that could demodulate FM audio and Nicam audio also. Link to project: https://nvra.net/index.php/nicam-decoder/pe1ice-nvra-mini-atv-ontvanger/ All that was needed was to install the receiver in a...
Getting better 10GHz reception, modifying the mast :-)
Reception at 10Ghz can be quite a challenge, especially if you can receive the station to be received on the edge. I really had the problem that the signal went up and down even...
HB9CV 3.5m Project
A friend of mine Gertjan PA3FZB who is crazy about 3.5m broadcast “amateur” stations 😉 recently came up with an article about a HB9CV design for 3.5m. He asked me if I could build...
23cm Yagi Antenna building
First attempt to build a 23cm Yagi I had been looking for an antenna for 23 and 13cm for a while now. As I wanted to listen to SSB and Amateur Television stations. Now...
Diamond MX62M Diplexer Modification for IC-705
Simple conversion description MX62M with BNC Connectors UPDATE! 02-07-2023 I have replaced the BNC Pigtail cable with a fixed BNC Panelmount version instead to be more flexible. Recently I was looking for an...
Magnetic Loop Controller update
Update! 30-12-2022 It’s been a while since I gave an update on the Magnetic Loop controller project I’m working on with Rob PA5RH. The purpose of the Loop Tuner was that it can tune...
Magnetic loop construction – PART 2
Some time has passed, and a lot has been done so far. Construction Tuning Section First I had to find a way to mount the vacuum condenser on the mounting plate. Because I print...
