I'm in Moriarty flying a Sparrowhawk and am having trouble with me portable. It seems yo be transmitting fine but the only time I've received Farm targets is when I'm on the grid. It is receiving transponder and ADSB traffic just fine.

You may recall that I recently replaced as broken antenna. However I'm pretty sure that farm targets were showing up when a friend borrowed my portable at Region 10 South.

Any suggestions?