Category Archives: How to …

Accurate time keeping on an Apple Mac running macOS Mojave

When running data modes such as the very popular FT8, it’s important to keep your computer clock accurate because if it’s more than a couple of seconds out then you won’t be able to decode anyone, they won’t be able … Continue reading

Posted in Amateur radio, Apple Mac, FT8, How to ..., JT65, WSPR | Tagged , , , , , , | Leave a comment

Updated guide to setting up an APRS RX only iGate using a Raspberry Pi, RTL-SDR dongle and a pre-built image

** image has been updated as of 21/04/2018 to resolve the problems some people had booting their Pi ** This post is an updated version of the original article I wrote in February 2017.  It’s using Raspbian Stretch rather than … Continue reading

Posted in Amateur radio, APRS, Data, FM, How to ..., Raspberry Pi, VHF | Tagged , , , , , , | 190 Comments

How to make your vertical HF aerial work better

Add more radials. No really, that’s it.  

Posted in Amateur radio, HF, How to ... | Comments Off on How to make your vertical HF aerial work better

Do people complain you’re quiet on the repeater?

One of the biggest complaints on our local repeaters is that people are quiet with very low audio.  Often they’re using the cheap Chinese handheld wirelesses such as the Baofeng UV-5R or similar which have a reputation for being quiet. … Continue reading

Posted in Amateur radio, How to ..., Operating tips | Comments Off on Do people complain you’re quiet on the repeater?

Installing a good quality TCXO into my Kenwood TS-590SG

Over the years as I’ve operated QRSS and WSPR, I’ve noticed that my original TS-590S and then the replacement TS-590SG have always been slightly off frequency and suffering from a little drift.  This frequency inaccuracy was barely 30Hz which seems … Continue reading

Posted in Amateur radio, Construction, How to ... | Leave a comment

Accurate time keeping on an Apple Mac or Raspberry Pi for WSPR/JT65/JT9/FT8

If you use any of the data modes for QSOs such as JT65, JT9, or FT8 or if you operate using WSPR then you’ll know how important it is that your computer clock is accurate.  Anything more than a couple … Continue reading

Posted in Amateur radio, Apple Mac, FT8, How to ..., JT65, JT9, Raspberry Pi, WSPR | Tagged , , , , , , , | 2 Comments

com.apple.bird/session/g

This is one of the very few non amateur radio related items on this site.  I’m posting it because it’s a useful tip and I hope that it will assist fellow Mac users. I noticed about three years ago that … Continue reading

Posted in Apple Mac, How to ..., Not amateur radio | Tagged , | 2 Comments