Simple FTDI PTT & CW Keying Interface
It doesn’t get any simpler than this!
This interface uses the RTS and DTR signal lines from a cheap FTDI USB Serial Adapter, and provides isolated keying for both PTT … Read more...
Miscellaneous
Tokyo’s Electric Town – Ham Radio Shopping
In the Tokyo burbs, Akihabara, also known as “Electric Town”, is heaven for ham radio shopping.
This district is also a Mecca for all sorts of electronics, PCs and gadgets, … Read more...
VK Logger Forum Archive
VK Logger Ham Radio Discussion Forum was established in 2006, and ran continuously until 2016.
Operation was suspended in 2016 due to a lack of activity, but “re-booted” in 2018.… Read more...
Behringer X1222USB Power Supply Failure – Fix
Behringer X1222USB audio mixer Power Supply fails, again!
The SMPS modules fitted to these Behringer audio mixers are crap!
Fault symptoms include the appearance of no power to the mixer, … Read more...
Eltek Flatpack2 HE 48V/2000W Controller
An Eltek Flatpack2 HE 48V/2000W rectifier is being used as the power supply for a 23cm 600W LDMOS Power Amplifier project.
This touchscreen controller has been developed to control the … Read more...
FS1000A 433 MHz transmitter – L2 missing
I recently purchased some of these low-cost 433 MHz SAW transmitter and receiver pairs for a current project.
The receivers work as advertised.
The transmitters?
Obviously dispatched from the factory, … Read more...
Android Applications for Ham Radio
There are many ham radio orientated apps available from Google Play for your Android device, and I will be documenting a few of the apps I have found useful here.… Read more...
W.I.A VHF/UHF Field Day Results
Results for the WIA VHF/UHF Field Day Summer 2014 contest have just been released.
I was amused (it doesn’t take much) to note that the Contest Manager did not quote … Read more...
Video: Mellish Reef DXPedition 2002
Here is the official collection of VK9ML Mellish Reef DXpedition 2002 videos.
VK9ML Mellish Reef DXpedition – Part 1
VK9ML Mellish Reef DXpedition – Part 2
… Read more...
3.4 GHz Transverter Testing
Videos of some 3.4 GHz experiments.
First, the initial 3.4 GHz transverter receive test, placing a VK3XDK Signal Generator several streets away.
3.4 & 2.4 GHz setup with … Read more...
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VK Logger Discussion Forum Archive
