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

Does the job. Good value.

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

Works as advertised on 2/440 bands. Allows two high performance antennas on dual band rig.

Well made. Has rubber feet on bottom if youre setting it on a desk.

Worked exactly as it should. The description is a little vague but it is both a duplexer and a diplexer. I use it for a diplexer and it works great!

Works properly for both VHF and UHF bands. When antenna was measured with a SWR meter before this was installed, I had a 1.01 and 15watts on VHf and a 1.2 and 27watts on UHF with a multi-band Tram antenna. After installing this filter, SWR readings increased by .1 for. VHF and .08 on UHF and the watt output for both fell by 2%, which is exactly what I expected. This increase in SWR affected nothing since it was so small and the ratio was under 1.5. I can receive and transmit simultaneously on both bands. This device is a MUST if you are into ham/GMRS.

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.

It works exactly as advertised. Simple, built heavy and it works. I use it to work Yaesu FT 2980 and FT3207 with single Diamond dualband antenna at 55 ft on tower. Can monitor both radios and transmit on either as I choose without manual switching.

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

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