Author: pd5dj

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 an evening drawing. And I have drawn a number of variants of Utility boxes. I print these boxes with PETG filament,…

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 with a switch so that your radio sends out a nice reduced carrier to safely control a tuner. For most 100-200W…

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 build into an enclosure. The Signal splitter 1 was one of them projects. I once ordered a package of PCBs from…

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 course with built-in battery with builtin charger. 3. PE1ICE MiniATV receiver as base. 4. Switchable bias voltage. 12/18V, and OFF. 5.…

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 of wire. I bought a new piece of 10m 450ohm ladder line a while ago. This was too long, but before…

I have written a tutorial on how to install an Application like Wordle for LinBPQ.   BPQ Applications (Wordle)

Over the past 2 weeks I have been busy getting the following things done: Transferring a Windows BPQ32 configuration to LinBPQ for the RaspberryPi. Communicating with an AEA PK-88 TNC in KISS mode. Install Direwolf on another RaspberryPi. Communicating with an ICOM IC-7300 (built-in sound card and USB Serial port for PTT). And then let…

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 no Hardware DCD. So you have to use your Squelch on your radio. To work with an open Squelch you need…

In recent years, the Netherlands has witnessed a remarkable resurgence of packet radio, a digital communication technology that utilizes radio signals to transmit data. This revival can be largely attributed to a group of passionate amateur radio operators in the Noord-Holland region, who have reignited interest in packet radio on the 2 meter amateur band.…

We recently spontaneously came up with the idea of ​​holding a field day on September 30, 2023 in the Spaarnwoude recreation area (near Amsterdam). We had a nice day there with a few fellow amateurs. Together with Nico PA4NIC, Fred PE3FS, Carlo PA1LCS, Rene PE1LFI and some more supporters. Fred PE3FS edited a small video…