Update:
The VHF port can pass up to the amateur 220 mhz band.
The UHF port passes down to the amateur 440 mhz band.
As suspected, terminating the unused input port is very important. So is not chaining a bunch of barrel adapters. F-F male is just as bad as any slide-on connector when it comes to leaking 800mhz especially.
I also tried using this as a tuned combiner for two different antennas - a general purpose vhf and the RS 800mhz duck on some short 3-foot jumpers. Even tuned, it had the problems mentioned in the other sticky forum threads.
So essentially I'll use this when needed as either a high-pass or low-pass filter hinging somewhere around 300mhz center with high-quality direct connections and the unused tuned port terminated.
|