What is it?

The QRP power meter can measure R.F power from an ADX TRX or similar low power transmitter. Code has been updated to use the 10 bit resolution of the AVR AtTiny85 MCU. Uses an OLED 0.96" 128x64 or 128 x 32 pixel Screen to display the readings. A feature was also included to blank out the oled screen in order to protect the display from over burning.

The QRP power Meter has an onBoard Regulator and D.C filtering.

Dummy load is composed of eight Metal Film 3Watt Resistors.

Specifications:

Max peak power input : 20W

Frequency Range : DC to 30Mhz (H.F)

Dummy load : Metal Film 50 Ohm Air Cooled

RF Input : BNC   Module Power In : D.C 12v - Regulated TO 5Volts on Board

Extra Features 

Start/Stop Switch : to start a new measurement 

Oled screen Blanking  to save Oled Display