If it's a multilayered board it's toast. One could try epoxying it together and doing bridges for the traces but if the board broke at one of the essential components might not be
salvageable if single layer. Even if fixed, I wouldn't trust it as a primary tracker. Wayne is a Ham and some of the other RDF options are available to him.
This unit is close in size but the issue is it's on the 2M band:
https://www.west.net/~marvin/microhnt.htm
The antenna requirement would be the only handicap but it could be tracked with any 2 meter radio. I suspect Wayne already owns one or get a Beeline RDF
With the appropriate Yagis and an electronic attenuator,
https://www.west.net/~marvin/k0ov.htm one is ready to go.
Kurt