G4FRE RADIO BLOG

Amateur Radio

Tuesday, 14 January 2025

Low cost SDR update (4) One is not enough!

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 Having been impressed by the receiver I could not resist building another one, especially at the price! My supplier of the A/D board had a ...
Friday, 3 January 2025

Low Cost SDR update (3): Multimode skimming

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Having got all this data from the Receiver it obviously needed skimming. My current desktop, a 5th generation I5 would not have the power so...
Friday, 27 December 2024

Low cost SDR update (2): Encapsulation

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The next task was to put the receiver in a box. As I wanted to make the receiver powered by 12V I needed room for a DC to DC converter and p...
Sunday, 22 December 2024

Low cost SDR (1)

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Occasionally interesting projects do get shown on the BATC QO100 net which runs on Thursday evenings! One such occasion in November 2024 was...
Sunday, 9 June 2024

IARU TV Contest 2024 Day 2

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  An early start was made from Membury services after coffee and pastries. I then drove to Combe Gibbet, IO91GI61 from where I could see Gar...
Saturday, 8 June 2024

IARU TV Contest 2024 Day 1

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  Noel G8GTZ decided he would be starting the contest at Dunkery beacon IO81FD so the obvious place to start the contest was Cleeve Common I...
Wednesday, 15 May 2024

A visit to Dunkery Beacon IO81FD

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 Having booked a 7 night walking holiday at the HF Holidays location at Selworthy, Devon I realised  it was just down the road from the famo...
Saturday, 17 June 2023

IARU TV Contest 2023 Day 1

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 This year I decided to go somewhere closer to home. Titterstone Clee seemed a good choice  but the usual spot would be a bad choice as the ...
Saturday, 5 November 2022

DATV-Easy

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Having listened to the presentation by PA3FBX during the BATC Convention 2022 Part 2 about the F1EJP DATV-Easy 2.08 software, I thought I wo...
Friday, 17 June 2022

Portable on Rosedale Moor IO94MJ

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Before returning South I wanted to try another path with Rob M0DTS/P The slightly obstructed path was 115km between IO85XF20 (Winters Gibbe...
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