Hello all,

So on a lark I purchased a Chinese preamp that claims to cover almost DC to light LOL. seen here

On 440 uplinks I was swamping my 2 meter RX so I have a 4 pole 2 meter bandpass filter inline now.

My question is where is the best place to place the preamp, output or input of the bandpass filter. Right now its on the input to the filter.

Does anyone have some real world experience with this ?

I have a single coax dual band antenna feeding a 2/440 duplexer. 2 Meter radio is Yaesu FT-817 and 70cm radio is a FT-991A so this filter and amp are fed from the duplexer 2 meter port.

I just heard XW-2C at 3 degrees—never heard that before so it is working.

I appreciate your comments.

73 Frank WA2NDV