trig TY96 - Frequency Management and Configuration; Frequency Databases; Entering and Editing Frequencies; Configuration Mode Options

TY96/97 CS-STAN Installation Guide 10 November 2016
SUP/TY96/004 Issue 1.0
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Trig Avionics Limited Page 5
3. Change Details
3.1 Description of Change
This change involves removing an existing radio if applicable, and installing a Trig Avionics TY96/97
VHF Radio.
The processes involved in the change includes pre-testing of any existing installation; verification of
the suitability of the existing power supply wiring; installing the TY96/97 and post-installation testing
as defined in the TY96/97 VHF Installation Manual.
If replacing an existing radio; the original mounting tray will need to be removed and the dedicated
TY96/97 tray must be installed. The connector will also need to be replaced. The existing antenna can
be re-used – provided it is in serviceable condition. Otherwise, need to be replaced or repaired. An
antenna can be replaced under the CS-STAN Section CS-SC004a.
3.2 Radio Selection
The minimum output power specified for the radio is sufficient for the operation depending on the
maximum flight level of the aircraft. The table below is valid for standard antenna installations antenna
type and position) with standard cable length less than 4m and 2 connectors.
Maximum aircraft Flight Level
(FL)
Minimum output power (W)
Trig Radio Selection
Up to 100
4
TY96 (10W nominal output
power)
100 to 150
6
150 to 200
8
200 to 250
10
250 to 300
12
TY97 (16W nominal output
power)
300 to 400
16
For different installations (cable length, connectors), the required output power needs to be assessed by
additional analysis.
For aircraft flying below FL250 the TY96 (nominal power of 10W) is sufficient. For aircraft flying
above FL250 and up to FL400, the 16W TY97 Radio must be installed.
3.3 Acceptable installation methods, techniques and Practices
The installation and return to service test must be carried out in accordance with the TY96/97
Installation manual, available on the Trig website at http://www.trig-avionics.com/products/ty96/
The TY96/97 meets all requirements of CS-STAN as laid out in Section 3 of CS-SC001a; certified to
ETSO 2C169a, capable of both 8.33KHz and 25Khz spacing.
In CS-STAN, It is stated that the installer must ensure that the radio is suitable for environmental
conditions to be expected during normal operation. The TY96/97 is certified for wide variety
environmental stress, as detailed in the TY96/97 Installation Manual.
3.4 Continued Airworthiness Instructions
An approved aircraft maintenance program will normally include periodic functional checks of the
communications radio installation.