Installation guide

SV-COM-C25 Installation, Configuration, and Testing
16-16 SkyView System Installation Guide - Revision R
Phones / Headset Connections for SV-INTERCOM-2S
SV-COM-425
Pin
SV-INTERCOM-2S
Pin
Notes
10
14
PHONES OUT
Audio signal from radio to
headset phones
9
1
PHONES GROUND
Shield connection for
PHONES OUT
5
12
PUSH TO TALK IN
When connected to
GROUND, SV-COM-C25
switches from Receive to
Transmit
1
25
MICROPHONE IN
Audio signal from headset
microphone to radio
2
1
MICROPHONE / PTT
GROUND
Shield connection for
MICROPHONE IN
Table 57 - Phones / Headset Connections for SV-INTERCOM-2S
To avoid noise, hum, and other undesirable signals, always use shielded cable for any low-level
audio signals such as microphone inputs, and connect the shield of the cable as directed.
Antenna Installation
Dynon Avionics does not supply COM antennas, radio coaxial cable, or antenna BNC
connectors. The antenna (including coaxial cable and connector) should be installed according
to the manufacturer’s instructions.
The following considerations should be taken into account when siting the antenna:
 The antenna should be well removed from any projections, the engine(s) and propeller(s). It
should also be well removed from landing gear doors, access doors or others openings
which will break the ground plane for the antenna.
 Separation of COM antenna(s) from transponder(s) and GPS receivers / antennas: 1 foot (12
inches).
 Separation of COM antenna(s) from Automatic Direction Finder (ADF) or 121.5 MHz
Emergency Locator Transmitter (ELT): 4 feet (48 inches)