LF-MF Low Pass Filter board
This filter board contains Low Pass filters that are suitable to remove overtones from small QRP transmitters like the WSPR-TX LP1.
For the HF bands 2190,630m and 160m
Maximum power handling is 2W continously.
Insertition loss is between 1.2dB to 2dB.
The overtone filtering is -43dBC on 2190 and 630m bands and -48dBC on the 160m band if feed with a square wave.
Divided in 3 filters, see picture.
This is a partial Kit.
All SMD components are pre-solered only the SMA connectors needs to be soldered on and that can be done with a regular soldering iron.
Includes a 10cm long SMA to SMA cable for connection to your transmitter or experiment.