I have the following setup:
Fender Deluxe Strat (USA)
Martin D28 acoustic with Fishman Acoustic Matrix Natural II under-saddle pickup
Fender Deluxe Reverb combo amp
Morley ABC switcher
SP compressor pedal
Fullton Fulldrive 3 Overdrive pedal
L R Baggs Para DI Acoustic preamp
Line6 Relay G30 wireless system
Using the Relay G30 feeding into the Morley switcher, I can route the Strat into either of the Deluxe Reverb’s channels – with or without the FX units - with no problems. However, when I change to the Martin, using the switcher to route it through the Baggs unit to the amp’s Vibrato channel, significant high-frequency interference occurs, which fluctuates as I move the guitar and wireless transmitter around. Using a cable from the Martin to the Baggs unit (i.e. no wireless), this does not occur. Either the Fishman or the Baggs unit is disagreeing with the wireless transmitter.
All advice/suggestions gratefully received.