I would expect you to, definitely. Are you using the QLG-1 gps board with the U3S?

As I was building mine, modifying, and testing, with a single BS170 into a 50 ohm resistor as a quick and easy dummy load, and a a random length wire on my TS440 for receive-only purposes, the 440 heard the U3S from 5-10 feet away and decoded its transmission with no problems.

As has been mentioned earlier, the output section is a pretty simple circuit. I assume you've confirmed you have proper bias and supply voltages on the BS170s? And I'm sure you've been over parts placement a ton of times to ensure no wrong or missing parts?