Garmin 520 - Manual (Page 21)

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Rino ® 520/530 Owner’s Manual 11
Setting the code to 0 (code off) allows you to hear all
activity on the selected channel, but you must be set to
the same code as the other person(s) to transmit back. See
the “Appendix” for a table listing all of the 38 Codes and
their frequencies.
As you change channels, the Rino 520/530 remembers
the last channel/code combination that you were using.
For example, you may set the unit channel to 5 and code
to 21, then change the channel to 8 and code to 2. If you
change the channel back to 5, the code changes back to
its previous setting of 21. See the “Appendix” for more
information on FRS/GMRS and its operational aspects.
To change the Channel and/or Code:
1. Using the Thumb Stick, highlight the Channel or
Code field and then press the Thumb Stick In to
show a list of available channels/codes.
2. Move the Thumb Stick Up or Down to scroll
through the selections. Because not all the items
fit in the window, a slider bar on the right side
indicates your current position in the list.
3. Highlight the selection, press the Thumb Stick In.
Adjusting the Volume and Squelch Level:
1. Press the Volume Control (V) button to display
the Volume/Squelch Level Control window.
2. Move the Thumb Stick Up or Down to adjust the
volume level.
3. Use the Thumb Stick to set the squelch level by
moving the slider all the way to the Left to unmute
the background noise (weak signals that you don’t
want to hear). Then slowly
move it to the Right until the
background noise stops. The
squelch is set.
Volume/Squelch Adjustment
Choose from 38 codes. Setting
the unit to zero will allow you to
hear all transmissions on that
channel, but you must be on the
same code to radio back.