Description
This is the BLANK PCB for the Portsdown RF output switch capable of switching the low level output of the Portsdown filter modulator board to 8 ports for transverters and separate amplifiers for the 70, 144, 437 and 1255 MHz bands.
The picture shows the Version 1 board. The shop now sells version 2 boards with the frequency-compensated input attenuator and second voltage regulator.
See https://wiki.batc.org.uk/8-Band_RF_Output_Switch for more details and the parts list and schematic.
