Weather Display and PSK Digital Master 780 Macro in Ham Radio Deluxe

I dabble with PSK31 within Ham Radio Deluxe Digital Master 780 (DM780) software, one feature I was particularly interested in was the ability to set various macros to automatically read and insert text for transmission from a file.

Weather Display is the software I use for my weather station and is unbelievably flexible in what can do, in my case I have it set to generate a text file of current weather conditions (temperature, wind speed, direction and rain fall) every 10 minutes.

Configuration – Weather Display

Setup >> Log Files
Main Log Setting switch – ON

Custom Log Settings >> Produce a custom log file is ticked
Update Frequency >> 10 minutes

Open explorer >> wdisplay folder >> webfiles

Within webfiles locate customtext and edit with the information you wish to send as the weather macro in DM780, I have this:

The temperature here is %temp%C with an average wind speed of %avgspd%mph from the %dirlabel%, Chatteris rain today%dayrn%mm

As I only have one customtext file set, I simply saved the changes without renaming the file.

The weather tags within the % determine the information that Weather Display inserts, a full list is in a text file named testags is within the webfiles folder.

What does all this do?

The result of all the above is that an existing text file named customtextout in webfiles is generated and overwritten every 10 minutes with the information previously requested in the customtext file.

Ham Radio Deluxe – DM780 Macro Setup

With DM780 open, Tools >> Macros

Double click on existing unticked macro – WX to edit
Right hand side of the screen is a tab called – Text from File – clicking on this inserts –

Weather here is temp is File-contents-go-here

I changed this to –

<his:callsign> de <my:callsign>
<his:firstname>
<file:\\HEWLETT-NN43CTX\webfiles\customtextout.txt><eof> k <stop>

Data from my weather station: www.chatteris.biz

Click OK to save the Macro ensuring that the enable box is ticked and exit from setup, the Macro called WX should show in the Info pane.

Note – As the Weather Display program and Ham Radio Deluxe are on separate computers I had to give the webfiles folder share permission on my home network, this is why the link to customtextout starts \\HEWLETT-NN43CTX\, if both programs were on the same PC, the path would be –

<file:C:\wdisplay\webfiles\customtextout.txt><eof>

If you need help, contact me via the contact form.

Updated 15 Nov 2022

73

Home Made 300w Dummy Load

Decided to make a dummy load as per the design of Ham AI4JI and incorporating ideas from a YouTube upload.

Link to AI4JI web site, this includes how to make the unit and also all the documentation showing how to take and interpret measurements in order to determine power output.

This YouTube video shows how to make a similar dummy load, the bit I took from this was the use of copper pipe.

https://www.youtube.com/watch?v=Gn0HaZMYzro

This is how mine turned out:
2014-09-05 19.40.07 (Medium)

Parts & Cost

Ebay for the following –

1 litre Empty Paint Mixing Tin £3.75
2 x 500ml White Mineral Oil £15.50
BAV21 250v Diodes (pack 10) £2.67 inc P&P
20 x 3w 1k 500v Metal Oxide Resistors £5.70

Radio Rally –

1 x SO239 Socket – Chassis Mount – Nut Fixing £1.00

Shack –

1 x 0.01uf 2kV Ceramic Capacitor
200mm offcut of 28mm Copper Pipe
Red & Black Terminal Posts

Total Cost – £28.62

The Mineral Oil was the most expensive part of this build, I could have used engine oil as the coolant but taking the overall costs into consideration, under £30 for a 300w capable Dummy Load is not too bad.

NOTE– 12 October 14 – Even through I sealed around the terminal posts and antenna outlet socket on the lid, I have found that the mineral oil is so viscous that it ‘wicks’ up the wires and finds the smallest escape, even when not in use.
At first I thought I must have overfilled the can somehow, but their is a 10mm gap between the top of the lid and the liquid level, so capillary action must be the cause just to let you know.