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Sunday, 31 May 2020

CQ WW WPX - CW Contest Time

Well,

I've been having a play over the weekend in the CQ WW WPX CW Contest. Here's the log as a map:


There was interesting "blanketing E" propagation, but no real DX.

I did a quick video on the TS-890 in these busy contest conditions with Writelog, CW Skimmer and CW Get:


Fun, egh?

Friday, 15 May 2020

IC7610 In Action!


Well,

By popular request I have put together a demonstration of the IC-7610 in action:


I hope you like it!

Sunday, 10 May 2020

An experimental STM32 Frequency Counter

Well,

In an attempt to learn more about microcontroller programming I have done a little bit of training during this Covid-19 lockdown:



My first real attempt to use these skills is below. I've used a GPS 1pps signal to accurately count an external frequency. This is a GPS disciplined freuqnecy counter:


Good, isn't it?

Here is a picture of me (with Covid-19 dog clipper hair cut) and my beloved Bonnie dog:


Saturday, 9 May 2020

A Modest Milestone

A nice little milestone today, if you'r not already subscribed to my YouTube channel I would very much appreciate your support:

http://www.youtube.com/c/MarkG0MGX


Local conditions.

Thursday, 30 April 2020

GPS Disciplined, again?

Well,

I've been trying to learn more about STM32 microcontrollers, their programming and to understand more about the on-board peripherals.

This is the result of my musings:


Fun, egh?

Sunday, 19 April 2020

TS-890 (Again) - Digital Config

Well,

By popular request I have created my best shot at an "idiots guide" to setting up digital modes on the TS-890:


I hope this is useful to someone....

Saturday, 18 April 2020

A CW & WSPR Beacon

Well,

I've been fiddling some more with STM32 and have created a DDS based CW & WSPR beacon for 6M.

You can find the details of the project here:


The WSPR code is stolen from Anthony F4GOH, his code and other bits and bobs are on GitHub here:

https://github.com/f4goh/wspr

To counter any drift in the DDS, I've modified my AD9850 board to use an external signal for the clock and configured my Leo Bodnar GPS referenced oscilator to give me 10MHz from output 1 and 125MHz from output 2, thus:


The 125MHz is now used to drive the DDS. I'd be delighted to receive reports from the beacon, the CW signal is on 50.030 and every multiple of 10 mins it sends a 2 min WSPR transmission on 50.293 + 30Hz.

Here's the WSPR beacon RX from G0ORC:


No drift - not even a wobble! Excellent.

Fun, dont you think?