Category Archives: Data

FT8 – The latest data mode

Posted on July 20, 2017 by g6nhu

I’ve posted a lot about the low power, low signal modes, JT65 and JT9 in the past and now there’s a new kid on the block. This one is called FT8 which stands for ‘Franke and Taylor, 8-FSK modulation’, developed … Continue reading →

Posted in Amateur radio, Data, FT8, HF | Tagged | 4 Comments

What can be achieved in twelve hours of 20m JT65/JT9?

Posted on May 1, 2017 by g6nhu

WSPR is great, I enjoy running WSPR and seeing how far I can transmit using very low power but there are a couple of drawbacks.  I appreciate this will sound as though I’m knocking WSPR but trust me, I’m really not. … Continue reading →

Posted in Amateur radio, Data, HF, JT65, JT9, QSO365, WSPR | Tagged , , , | Leave a comment

Returning to data modes after an enforced break

Posted on April 16, 2017 by g6nhu

My shack computer is an Apple iMac.  For a few years, I’ve operated a lot of data modes and been very successful in data contests.  I’ve always enjoyed data modes and in 2012 I operated GO6NHU to celebrate the London 2012 Olympics … Continue reading →

Posted in Amateur radio, Construction, Data, PSK, RTTY | Tagged , , , , | Leave a comment

MB7UIV is back

Posted on February 17, 2017 by g6nhu

A little history In January 2000 I started running the first licensed APRS Internet gateway in the UK originally with the callsign GB7UIV.  Within a week of experiments starting on the 26th January 2000, the gateway was on air and … Continue reading →

Posted in Amateur radio, APRS, Data, FM, Raspberry Pi, VHF | Tagged , , , , , , | Leave a comment

Setting up an APRS RX only iGate using a Raspberry Pi, RTL-SDR dongle and a pre-built image

Posted on February 3, 2017 by g6nhu

After my previous post, it was suggested that an easier way to set up a receive only APRS iGate would be to provide a pre-built image which only needs slight tweaking to go live.  That seemed like a good idea to … Continue reading →

Posted in Amateur radio, APRS, Data, FM, Raspberry Pi, VHF | Tagged , , , , , , | 73 Comments

A guide to setting up an APRS receive only iGate using a Raspberry Pi and an RTL-SDR dongle

Posted on February 2, 2017 by g6nhu

I originally bought a Raspberry Pi back in October 2012 but as I didn’t have a specific purpose in mind for it, I quickly sold it again.  A few months ago I decided to play around with a Pi again … Continue reading →

Posted in Amateur radio, APRS, Data, FM, Raspberry Pi, VHF | Tagged , , , , , , | 29 Comments

ADS-B setups – Comparing internal and external aerials

Posted on January 28, 2017 by g6nhu

Following on from my last update, I’ve spent a fair bit of time experimenting with two very different ADS-B aerial configurations.  I have two Raspberry Pi3s, both running identical software and exactly the same receivers, the FlightAware Pro Stick Plus which … Continue reading →

Posted in ADS-B, Construction, Data, Raspberry Pi | Tagged , , , | Leave a comment