Garmin 500W Series, Quick Reference

3

190-00357-01 Rev H

KEYS AND KNOBS

Left-hand Keys and Knobs

k

 The 

COM power/volume 

knob controls unit power and, in the 

GNS 530W, communications radio volume. Press momentarily to 
disable automatic squelch control. Turn clockwise to turn the unit 
on. 

j

 In the GNS 530W, the 

VLOC volume 

knob controls audio volume 

for the selected VOR/ Localizer frequency. Press momentarily to 
enable/disable the ident tone. 

y

 In the GNS 530W, the 

large left 

knob (COM/VLOC) is used to 

tune the megahertz (MHz) value of the standby frequency for the 
communications transceiver (COM) or the VOR/Localizer receiver, 
whichever is currently selected by the tuning cursor. 

v

 In the GNS 530W, the 

small left 

knob (PUSH C/V) is used to tune 

the kilohertz (kHz) value of the standby frequency for the com-
munications transceiver (COM) or the VLOC receiver, whichever 
is currently selected by the tuning cursor. Press this knob momen-
tarily to toggle the tuning cursor between the COM and VLOC 
frequency fields. 

W

  In the GNS 530W, the 

COM flip-flop 

key is used to swap the 

active and standby COM frequencies. Press and hold to select the 
emergency channel (121.500 MHz). 

V

  In the GNS 530W, the 

VLOC flip-flop 

key is used to swap the 

active and standby VLOC frequencies  
(i.e., make the selected standby frequency active). 

On the GNS 530W, the large and small left knobs 

allow you to tune the desired COM or VLOC 

frequency. 

GPS 500W

GNS 530W