Garmin GTR 225 User manual

GTR®225 series VHF Comm Radio
Garmin innovation brings new
efficiency and performance to
airborne communications.
Want to dial up a higher degree of confidence in your flight
communications? Start with the powerful technology found
in Garmin’s GTR 225 family of VHF comm transceivers.
Packed with advanced features and first-in-class database
technology, these compact, 2280-channel-capable Garmin
radios help streamline your cockpit workload with such
useful tools as automatic storage of your 20 most recently
called frequencies. The unit’s familiar “flip-flop” frequency
selection scheme allows comm channels to be entered
in a standby window, and then activated with a press of
button. Plus, you can also select and store up to 15 of your
most-used frequencies (such as those for your home airport
or other oft-visited destinations) for easy recall and entry
without dialing up the numerals. A handy comm monitor
function essentially provides the utility of two receivers in
one – allowing you to listen, for example, to
ATIS transmissions or monitor other frequencies without
leaving the active ATC frequency (the active comm channel
always takes priority on incoming calls). What’s more, the
unit’s extensive “reverse lookup” database makes it easy
to find all the frequencies associated with a given airport
or facility (Tower, Ground, ATIS, Clearance Delivery, etc.)
just by entering the location name or station ID. The
TSO-certified GTR 225 series radios are available in versions
offering 10- or 16 watts of power output, with each
configuration featuring a built-in two-place intercom. The
basic 10-watt GTR 225 version comes with standard 25 kHz
spacing, while the 10-watt GTR 225A and 16-watt 225B can
both be set for 25 or 8.33 kHz channel spacing – to provide
a choice of smart, affordable solutions for complying with
the 8.33 comm mandate in Europe.
Maintain contact, not complexity:
Fly with Garmin’s GTR 225 comm.

GTR®225 series VHF Comm Radio
Garmin International, Inc. 1200 East 151st Street, Olathe, KS 66062 p: 913.397.8200 f: 913.397.8282
Garmin (Europe) Ltd., Liberty House, Hounsdown Business Park, Southampton, Hampshire, SO40 9RB, U.K. p: 44.1794.519944 f: 44.1794.519222
Garmin Singapore Pte. Ltd., 46 East Coast Road #05-06, Singapore p: 65.63480378 f:65.63480278
© 2013 Garmin Ltd. or its subsidiaries. Specifications are preliminary and subject to change without notice. 02/13 M02-10235-00
1Requires compatible GPS input from panel-mount or portable GPS.
COMM RADIO FEATURES
760 communication channels (w/ 25 kHz spacing);
2280 channels (w/ 8.33 kHz spacing)
Frequency range 118.000 to 136.992 MHz (w/ 8.33 kHz spacing)
Active and standby flip-flop frequencies
One-touch 121.5 emergency channel tuning
Comm frequency monitor function
(listens to standby while monitoring the active)
Recall of frequency from database by facility name and type
Database reverse lookup of frequencies providing station ID
and frequency use (TWR, ATIS, etc.)1
Volume control bar graph display
Alphanumeric display of frequency types (ATIS, GRND, TWR, etc.)
High-visibility alphanumeric LCD display
Transmit status indicator
Backlit keypad controls
Automatic and manual, pilot-selectable display intensity control
Built-in, two-place voice activated intercom
Frequency memory and recall
Stores/recalls 15 user defined frequencies
Stores/recalls previous 20 frequencies used
Squelch test function
Stuck mic time-out
12 watt audio amplifier
COMM FREQUENCY DATABASE
Worldwide coverage and frequency lookup. Uses GPS input (from compatible
systems, sold separately) to determine locations for each of the 25 nearest
airports, Flight Service Stations, ATC facilities, WX stations, etc.
COMM RADIO PERFORMANCE
Transmit power: 10 or 16 watts output (by model)
Input voltage range 9 to 33 VDC
Operating temperature range -20 to +55 C
Certified TSO C169a (transmitting and receiving)
Certified TSO C128a (stuck mic)
PHYSICAL
Size: 1.65”H x 6.25”W x 10.4”D (4.19 x 15.88 x 26.42 cm)
Weight: 2.30 lbs (1.04 kg) unit only;
3.06 lbs (1.38 kg) with mounting rack
Depth: 11.23 inches (28.52 cm) behind panel,
including mounting rack and connectors
MODELS 25 KHZ
SPACING
8.33 KHZ
SPACING TSO’D XMIT POWER
GTR 225 Yes No Yes 10W
GTR 225A Yes* Yes* Yes 10W
GTR 225B Yes* Yes* Yes 16W
*Pilot-selectable