Dynon Avionics SkyView System Installation Guide - Manual (Page 323)

SV-COM-X83 Installation, Configuration, and Testing
SkyView System Installation Guide – Revision S 17-21

Verify dim commands from SkyView display dim the backlighting of the SV-COM-
PANEL.

Does the (optional) FLIP/FLOP pushbutton swap the STBY and COM frequencies?

Does pushing the PTT switch cause the SV-COM-X83 to transmit (only) when
pushed?
Do not transmit without an antenna connected. Doing so will damage your SV-
COM-X83.

(Optional, if two SV-COM-X83s installed) Does the PTT Select Switch cause only
the selected radio to transmit when PTT switch is pushed?

Temporarily install a VSWR meter between the SV-COM-X83 and the antenna.
Using brief test transmissions, is the VSWR 2.5:1 or below? The maximum
acceptable VSWR for SV-COM-X83 is 2.5:1.

When transmitting on SV-COM-X83, is there any interference to other aircraft
systems?

Power off the SkyView display(s) by pushing and holding Button #1 on the
display. The SV-COM-X83 should continue to operate normally, with the
exception that auto-population of the buttons frequencies will not occur, and a
NO SV error message will appear approx. 3 seconds after SV is not operating.

In Flight

Does the SV-COM-X83 receive other aircraft and ground transmissions at
reasonable ranges?

Does the SV-COM-X83 receive other aircraft and ground transmissions equally
well at the low end, middle, and high end of the Aviation band?

Is received audio clear at most volume levels on the SV-COM-X83? (Distortion at
high volume levels is normal.)

Are transmissions from the SV-COM-X83 heard by others at reasonable ranges?
(Keep in mind that the power output of the SV-COM-X83 is 6 watts.)

Are transmissions from the SV-COM-X83 clear (when received by others)?
Continued Airworthiness and Maintenance

Periodically inspect the COM antenna for wear and weather-tight seal to the fuselage.
Water intrusion could corrode the antenna connection.

As with all wiring, periodically inspect the COM antenna’s coaxial cable for wear; repair
or replace if significant wear is found.

Periodic function checks as required by your aviation authority.