The initial frequencies are the standard FT8 dial frequencies. arrl.org Profile name Center frequency (MHz) Sample rate (kS/s) Initial frequency (kHz) Initial modulation* Tuning step 160m – FT8 1.850 1000 1840 FT8 10 Hz 80m – FT8 3.583 1000 3573…
with the same units as the phone table. These center and starting frequencies focus on the lower portions of each band where you commonly find CW activity. Profile name Center frequency (MHz) Sample rate (kS/s) Initial frequency (kHz) Initial modulation…
Here are some of the profile setting I am testing for the standard HF bands, using U.S. Amateur Extra privileges. Set the units beside the fields to MHz for Center frequency, kS/s for Sample rate, and kHz for Initial frequency,…
Turning a Raspberry Pi 5 into a remotely accessible software-defined radio receiver for amateur radio, shortwave listening, and signal monitoring. Introduction One of the things I’ve always enjoyed about amateur radio is the opportunity to experiment with technology. Whether it’s…
^M is DOS line break charater which shows up in unix files when uploaded from a windows file system in ascii format. To remove this, open your file in vi editor and type :%s/(ctrl-v)(ctrl-m)//g and press Enter key. Important!! –…
Handheld radios have a habit of getting bigger once you start adding features, larger batteries, and sturdier cases. The Baofeng UV-5G Mini takes a different approach. As the name suggests, this radio focuses on keeping things small and portable while…
A feature-packed analog handheld that puts receiver performance, flexible scanning, and emergency communications ahead of digital modes. The Wouxun KG-UV9PX+ is not trying to be another inexpensive dual-band handheld with a long feature list and questionable receiver performance. It is…
If you have spent time monitoring the 2-meter amateur radio band, you may have heard short bursts of digital noise on 144.390 MHz. Those bursts are probably APRS packets carrying position reports, weather information, text messages, telemetry, or other useful…
September 2026 My Raspberry Pi–based DigiPi has become an important part of my amateur-radio setup. I primarily use it for APRS with Dire Wolf, but DigiPi supports many additional digital-radio applications in a compact package. On 5 September 2026, I…
Dire Wolf turns a Linux computer or Raspberry Pi into a software-based packet radio TNC. It can decode APRS packets, transmit position beacons, operate as an APRS Internet Gateway, and provide a network connection for applications such as Xastir, YAAC,…