Switch 4 antennas to 1 receiver with this RF switch.
All antenna input ports are shorted to ground when nothing selected or the unit is powered-off.
The selected port provides a low-loss connection with the receiver port up to 150 MHZ.
Each relay has its own MOSFET driver to accept a 3.3V or 5V TTL "High" signal to activate the relay.
A green LED will light and altogether will consume around 20 mA.
Of course, 4 receivers to 1 antenna is also possible.
Activating more than 1 relay or all of the 4 relays, is also possible.
Header PIN-OUT
PIN 1 (towards the SMA connector) Relay 1 activation
PIN 2 Relay 2 activation
PIN 3 Relay 3 activation
PIN 4 Relay 4 activation
PIN 5 GROUND (0 VDC)
PIN 6 +13.8 VDC (or 12 VDC)
PCB dimensions: 29.7 x 58.8 mm - not including the SMA connectors
Suitable box: https://www.sv1afn.com/en/project-box-enclosure/die-cast-90-36-31-box.html
