So. There was this nice Zyfer NTP box on the usual auction site. I powered it up whereupon it reported a fault on the ethernet board. I decided to contact the source and after a while, the Zyfer support staff responded and told me that the box was de-mil'ed by the buyer and I was missing the Trimble Force 22 SAASM receiver. Sure enough, that's why it didn't lock! Now, said box used a protocol known as TIPY (Trimble ...). The question is: is there a non-SAASM TIPY compatible receiver? Or, is this just an exercise in futility?