QRP Automatic RX-TX Switch

This board will let you share one antenna between my WSPR transmitter and WSPR Receiver.
Normally the antenna is passed to the receiver but as soon as the Transmitter starts it will go over to the Transmitter and the Receiver connection will be grounded to protect it.

Maximum power handling is 2W continously. Insertition loss is between around 0.5 to 1dB.
 
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.
 
Power is 5V and can be soldered in or you use the Micro USB connector and power it from your computer or other USB source. Current draw is less than 50mA.
 
Does not include any cables, I recomend getting a couple of my 10cm long SMA to SMA cables.
(Product number 1059) and a Micro USB cable (Product number 1016)
 
Minimum RF power for operation is 15dBm (30mW)
Bandwith is 100kHz to 50MHz.
Isolation between RX and TX port is 50dB or more on the HF bands.