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In: Amateur Radio, Computer
With: 2 Comments

FT4 via LEO satellites is becoming more and more popular. With FT4, there is less need for yagi antennas and elevation control, given the (at least) 10 dB gain over SSB communication. Or, with Yagis and elevation, you can reduce power to below 1 W. However, FT4 requires accurate doppler control and a stable transceiver, especially given the fact that many sats have a 70cm uplink. The de-facto standard for doppler control is SatPC32. This is a windows only program, and not really intuitive to configure and use. However, when configured and up and running, it’s a very powerful and accurate program. Since programs suchRead More →

On:
In: Amateur Radio, Audio, Computer
With: 2 Comments

Dire Wolf is a sound card based modem for packet radio. It can be downloaded for Windows and Linux here: https://github.com/wb2osz/direwolf Although there is a reference to MacOS, there are no further build instructions for Mac. Google reveals some info: one site references an outdated version, the other one proposes to install the brew build/port environment to provide the cmake tool. Installing an environment like brew for just one tool, which actually is a build tool by itself, is .. well .. odd. So I decided to build Dire Wolf on Mac without any hacks or special tools. After using the result for some time,Read More →

On:
In: Amateur Radio, Computer
With: 0 Comments

I finally decided to go with Mac for Amateur Radio stuff. Time Machine and Spotlight make life so much more comfortable. Not to mention good sleep/wake performance, terminal with bash command line etc. Of course, there will always be some tools that are Windows only, so I use Parallels for this. Download your Windows tool on Mac with Safari, organise stuff in iCloud and then just double click the installer program from Mac. Parallels will start Windows (from pause, no booting involved) and run the installer. When it’s time to use it, launch the tool with Spotlight from Mac. IMHO this will work best withRead More →

On:
In: Amateur Radio
With: 4 Comments

So the clock battery in my IC-7300 failed. Yes, the rig has been switched off for longer periods of time. Well bad luck. I compared the RT clock circuits of the IC-7300, IC-9700, IC-7610 and IC-705 using the service manuals that can be found on-line. Interestingly, the circuits in all rigs except the IC-705 are identical. Actually the clock circuit in the IC-705 is just a little different. “I have a clock in my shack, don’t need one in my rig..” Well true, I also don’t need a logbook program, I like to write. I don’t need the dx cluster, I like to listen toRead More →