[NLRS] Using a Radio Shack HTX-10 as a 28 Mhz IF

[Carl Estey]

I am considering using a Radio Shack HTX-10 as a 28 Mhz IF with a 
transverter for 432 Mhz.  I do not have a schematic for the transceiver and 
a visual inspection does not show a T/R relay.  I am trying to figure out 
how to get the HTX-10 to key an external coax relay to transfer the 
transceiver between the RX and TX ports of the transverter.  Has anyone 
done this -- and if so, how?

73
Carl - WA0CQG