What to do if Garmin Car Navigation system unit won’t communicate via RS-232?
If your Garmin Car Navigation system unit won’t communicate via RS-232, the issue may stem from an improper setup on the remote device, device incompatibility, or an incorrect connection. Consult the configuration of the other device. Verify that the SL30 Rx is connected to the remote device Tx and the SL30 Tx is connected to the remote device Rx.
What to do if my Garmin Car Navigation system SL30 does not transmit?
If your Garmin Car Navigation system SL30 doesn't transmit, it could be due to several reasons. First, ensure the TxKey (mic key) input is pulled low for transmit. Second, verify that you have selected a valid frequency, as the unit will not transmit on a weather channel. Third, confirm that the power input is correctly connected to the Comm 15 pin connector. Finally, check that the input supply voltage is greater than 9 volts DC.
General| Channels | 760 |
|---|---|
| Channel Spacing | 25 kHz |
| Type | Aviation Communication Radio |
| Category | Aviation |
| Frequency Range | 118.000 - 136.975 MHz |
| Power Output | 10 Watts |
| Operating Voltage | 14 V DC |
Overview of the manual's purpose and intended audience for installing aircraft navigation devices.
Details the Apollo SL30's features, including its VHF Comm transceiver and VOR/LOC/GS navigation receiver.
Lists general, navigation radio, and communication radio features of the Apollo SL30 unit.
Describes how the SL30 connects with external avionics and data systems.
Instructions for carefully unpacking and inspecting the Apollo SL30 package contents.
Guidelines and FAA advisory circulars to follow for a successful SL30 installation.
Factors to consider during installation, including mounting, cooling, and system configurations.
Outlines required components for VFR and IFR installations of the SL30.
Procedures for attaching connectors and mounting the SL30 frame in the instrument panel.
Detailed instructions for powering and connecting the SL30's electrical systems.
Requirements for installing Comm and Nav antennas, including placement.
Explains the use of splitters/combiners for dual antenna setups with the SL30.
Detailed electrical specifications for the Apollo SL30, including voltage, current, and fuses.
Physical dimensions and weight specifications for the Apollo SL30 unit.
Environmental testing categories and conditions met by the Apollo SL30.
Performance specifications for the VOR and Localizer functions of the SL30.
Performance specifications for the SL30's Comm receiver, including sensitivity and selectivity.
Limitations and recommendations for SL30 installation, including helicopter use.
Information on the SL30's frequency computation rate and VOR monitor function.
Information and required details for contacting Garmin AT for technical support.
Procedures for performing VOR accuracy checks as required for IFR flight.
Instructions for cleaning the SL30's front panel, keypad, and display.
Lists accessory items available from Garmin AT for the Apollo SL30.
Details on the splitter/combiner accessory for dual antenna/SL30 installations.
Lists the RS-232 serial input commands supported by the SL30.
Details the RS-232 serial output messages provided by the SL30.
Specifies the data format for serial communication with the SL30.
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