Description
This is the BLANK PCB for the Portsdown DATV system 4 band RF output switch capable of switching the low level output of the Portsdown filter modulator board to separate amplifiers for the 70, 144, 437 and 1255 MHz bands.
It is NOT the assembled unit as shown in the picture but just the BLANK PCB to enable home construction but please note it uses fine pitched SMD components.
See https://wiki.batc.org.uk/RF_output_switch for more details and the parts list and schematic.
