Well, I am melting solder again and adding to my qrp functionality. This time I am building a lovely CW rig from the Doug Hendricks stable (http://www.qrpkits.com/index.html). Designed by Steve Webber, the PFR-3 is a multi-band 5W portable rig that operates on the 20, 30 and 40m bands. It comes complete with a built-in ATU, its own power supply and a digital readout so you know what frequency you are operating on.
I decided to build another little piece of gear to add to this rig. Itś the battery status indicator that is also marketed by Doug Hendricks.
This is a great piece of kit that can be mounted inside the PFR-3ś enclosure. By pushing a button, the colour of the LED lets you know the status of the rigś power supply. I have just completed building the BSI and had it aligned by Ray VK4ZW, who has a variable power supply which is necessary to carry out the calibration.
This is what the BSI looks like mounted in the enclosure.
I have just completed building Phase 1 of the rig and am waiting for a replacement component (U7) to arrive from Doug Hendricks. Testing revealed this component to be either faulty or not programmed. It is a microchip ATMEGA48 and itś function is to control the digits of the LED display.