I'm trying to make use of a MFJ-4119 bias tee that is specified to
operate up to 70 cm. Sweeping the unit with a good 50 Ohm load on the
output shows a nice low SWR up to 70 MHz, but above that the SWR rises
and is 2:1 at 222 MHz where I had hoped to use it. The device looks nice
with N connectors and a DC on/off switch, but it's through performance
is not acceptable. Does anyone have experience with the MFJ-4119? The
MFJ manual does not have detailed specs or schematic. I'm considering
modifying it for VHF use only. Any suggestions other than to relegate
it to HF use only? Any thoughts on how much RF power it could handle at
222 MHz? Any suggestions on an alternative device?
73, Walt, AJ6T
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