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M0XPD England flag England

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First licensed as m6pad in May, 2008, then 2e0drd (August 2008) and finally m0xpd (January 2009).

I am interested in homebrew & QRP.

m0xpd's Paraset Replica

Above you can see my "Funster Plus" rig and my Paraset Replica.

I've always been interested in beacons, micro-control and physical computing applications in amateur radio - here's my original "Multi-mode Beacon", built on PIC technology, in her tantalising "see-through" exhibition clothes...

Here's a beacon system implemented on the Raspberry Pi and an HF Transmitter "Shield" for the Arduino...

These "digital" activities are reflected in my article in SPRAT 156, "Occam's Microcontroller" and the associated rig:

Back in 2013 I was developing a version of the BITX SSB transceiver...

with RF generation from a digital system with two DDS modules...

This combined VFO and BFO was described in the article jointly written by Pete Juliano, n6qw and myself in SPRAT 158, "RF Generation for Superhets".

I have implemented  a Software Defined Radio on the Arduino Due, seen here in her "Exhibition" format developed for my presentation at the G-QRP club's 2014 Rishworth Mini Convention...

m0xpd Arduino SDR

I spent some time playing with a new technique for achieving different receiving bandwidths in a superhet receiver, introduced in an article in RadCom (Jan 2015), described on my blog and embodied in an experimental rig...

    m0xpd Parallel IF Rig


This technique was the subject of my presentation at the 2015 QRP ARCI "Four Days in May" Event in Dayton, Ohio and resulted in the award of the RSGB's Wortley-Talbot Trophy.

I'm now playing with some ideas from the 'Internet of Things'. This is expressed in a new board which combines an Expressif ESP8266 processor (with WiFi capability) and a DDS device, in Arduino form factor...

This new board encourages experimentation on the boundary between amateur radio and the 'Internet of Things', and will shortly be available as a kit. It can be used (for example) with the Kanga / m0xpd HF Transmitter Shield to form a complete QRSS beacon system.


7691124 Last modified: 2016-11-12 11:07:00, 4828 bytes

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