I have a pair of DZ Kits HT-7 handy talkies, and just finished building the 2nd one. The final assembly steps for these things is adjusting three resistors and a varicap for the best sound and sensitivity. I've been doing this by ear with another receiver, but it's hard to judge what exactly I should be adjusting by the sound alone.
What I think I need is a station monitor. I see some Kenwood SM-220's and -230's on eBay, but these look like they're really meant for Kenwood equipment.
What sort of test equipment do you use to fine tune kit transcievers like these?
Thanks!