Figure 3-15. Com Transmit Power Configuration Page - Garmin GTN 6 series Maintenance Manual

3.3.4.3 COM Transmit Power Enablement
(GTN 635/650/750 only)
When the optional 16W COM power is configured, the GTN
COM will transmit with 16 watts rather than the standard 10
watts. This section describes how to reenable the 16W COM
transmit power.
NOTE
This manual only describes the necessary steps to
reenable the 16W COM transmit power for existing
installations. For first-time 16W COM transmit power
enablement, refer to the GTN 6XX/7XX Part 27 AML
STC IM, P/N 190-01007-B3.
1. Remove power from GTN.
2. Remove the database SD card from the SD card slot
and insert the 16W Enablement Card 
(P/N 010-00878-04) that was used during initial
enablement of the feature.
3. Enter configuration mode by applying power to the
GTN while holding the HOME key.
4. Go to the COM Transmit Power page from the GTN
Options page. Touch the 16W key.
5. When the 16W COM feature is activated, the 16W key will be lit green, as shown in Figure 3-15.
NOTE
The 16W COM transmit feature enablement card should be provided to the customer after
service to the GTN has been completed.
190-01007-B1
Rev. 1
Figure 3-15. COM Transmit Power
GTN 6XX/7XX Part 27 AML STC Maintenance Manual
Configuration Page
Page 3-11