Andy Talbot G4JNT
G4JNT PCBs, Modules, Components, Sale items - buy using PayPal

FT817 Keypad Controller
Programmed PICs for this project published in October 2014 RadCom are now available.
See The JNT Shop Please note that PCBs are not available for this project

Presentation on Modern Synthesizers given at the RSGB Convention, 12 October 2014
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Projects Synthesizers, DDS, LF Tx, Rx, Filters, Converters Logic

UPDATE previous versions of the LMX2541 Fractional-N synth module documentation have an error in the connections for the 12F629 PIC controller. The latest version corrects this.

Beacon Construction Software, Remote Control, Idents, Data Coding, RF Sources
Adding WSJT Modes

Frequency Locking and GPS

Software Design Utilities, Spreadsheets, DSP, PIC Source code

SITES.DAT Site database - keep up to date. NEW Distance and Bearing calculator for Windows

Write this down - shown as an image to kill spam searchers Publications papers, presentations, discussion documents


Quick Access to all files on this website. Just the filenames, in no particular order

Links to Other Sites of interest


Odds and Ends - snippets, things bits and pieces
Including some of my Mothers early memoirs from 1939 to 1957

Old Photography Page
Digital Photo page [Picasaweb]

Basil Basil -
The old Tiel is no more follow the link to his special site and our fond memories.

Apposite comments - pin on your office wall, if you dare!

The Paranoid section

Now visit the SCRBG Website for details of the GB3SC# Bell Hill beacons on 2.3GHz, 3400 MHz, 5.76, 10 and 24GHz