The Icom Magnetic Loop Antenna AL-705 description mentions remote tuning–how does that works?
@Gilbert_Jones Link for: AL-705 User Guide
My understanding is you initially tune -
TUNING 1) After attaching your coax to your radio, set your radio for minimum power output. 2) Set your rig to SSB Mode, turn the volume up, and listen for the loudest noise floor as you turn the black knob on the match to the right. 3) You can then fine tune the Alpha Match with the black knob till the SWR meter on your rig’s internal meter or your antenna analyzer is as low as possible.
NEXT STEPS
(Tuning with equipment, without touching the antenna) a. An antenna analyzer or SWR meter (whether internal to the rig or inline) can be used to find the lowest SWR after step 1 & 2 under TUNING is performed. This can be done without you having to touch the antenna. While watching the SWR on your equipment, change the frequency on your rig or analyzer till minimum SWR is shown on the meter.
NOTED - TUNING TIPS (Offset frequency while tuning for hand capacitance) a. To off-set the effect of hand capacitance while tuning, a technique called reverse tuning can be used. To reverse tune a magnetic loop, tune for minimum SWR while touching the Black Knob on the Alpha Match, say 1.9:1; and then when you remove your hand you might see 4.3:1 for example. Then all you must do is tune for 4.3:1 while your hand is on the knob to achieve an SWR of 1.9:1 when you remove your hand.