MFJ Enterprises Original MFJ-916B 1.8-225, 350-540 MHz Duplexer - SO-239

Does the job well. Only complaint is that the SO-239s are a bit short so the mobile antenna I used for in-house crossbanding, the PL-259 would not screw tightly so I had to use some extra connectors.

A dummy load reads about 2.5:1 SWR on 440. Replace duplexer with a barrel and the same dummy load and cables read <= 1.1:1.

Plug and play with great specs

Wish it offered a bit better attenuation

Working well so far. Measured about .3db loss in my nano vna. Very small bump in swr. Both are acceptable. Using to diplex a 2/1.5m antenna with a 70cm Happy with purchase. Will update with amy relevant findings or observations. 73s

Makes the use of separate antennas in my shack easy. I havent found a noticeable change in swr with this in line.

Works perfect!

Grate product for splitting my UHF and VHF signals from one coax to two antennas.

Works as advertised.

useful to attach separate 2M/.7M radios to single attena - works well, little loss.