I have both the mast mounted and in-shack 2 meter and 70cm versions. Normally they work well, but one word of caution, if you use them for full duplex satellites, best to get the older versions that are in an aluminum cast box. This reduces cross talk when transmitting on 70cm. The new versions are not shielded, at least the one I had and got rid of it. The new ones were in a plastic box, no shielding, and a simple stainless steel angle bracket for mounting. All the ones I presently have are the aluminum boxes. You might want to call MFJ and confirm the present day construction. Otherwise, I found them to work well and will operate with voltage sent up over the coax. Also, they can handle 160 watts.
Also, the newer external voltage box to supply the preamp are kind of hokey as well. They use to use a very nice square aluminum box, then went to a plastic box that suppose to sit on your table. However, the RG-8 or whatever coax makes this not very practical.
If not used for satellite full duplex or in simple single band operation, the units should work okay.
Reid, W4UPD
On 6/8/2015 3:24 PM, Steve Kristoff wrote:
I believe I am digging up a recent thread, but I just decided that I need a pre-amp. Anyone have experience with the Mirage mast-mount preamps? What do folks recommend? I will want one that is for 2 m and has an RF-sensed pass-through. Most likely to be putting about 25 watts through it for now. Thanks!!
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