Turn the Audio (ALD) Out volume control on the Redcat all the way down (side panel)
Connect a patch cable from the personal FM (ALD) microphone jack or AUX input to the "Audio Out" jack on the Redcat (side panel)
Be sure to verify the size and type of audio patch cable required as these will vary by manufacturer
Adjust the volume control on the personal FM receiver to maximum output
With the Redcat and personal FM turned on, speak into the Redmike and slowly adjust the "Audio Out" volume control on the Redcat until the appropriate audio level is attained in the personal FM receiver headphones.