Garmin apollo sl30 nav Manuale Utente

The SL30 unit is designed to not require any regular general maintenance except as included 
in this section. 

Even though the SL30 is designed to utilize the most state-of-the-art DSP technology and 
maintain a very high accuracy and repeatability record, it still must undergo the VOR 
accuracy checks required for IFR flight. Refer to CFR 14 paragraph 91.171. Every 30 days 
verify the limits of the permissible indicated bearing error. 

 

The last VOR check information may be entered into the SL30 via the system mode VOR

 

C

HECK

. See the operator’s manual for details. 

The SL30 design requires very few adjustments or calibration to be made. In fact, there are no 
internal manual adjustments. 

The reference oscillator frequency should be checked approximately every 3 to 5 years to 
ensure the units transmit frequency is within allowable tolerance. 

 

The oscillator frequency can be checked by connecting the transmitter output through an 
appropriate load to a calibrated frequency counter. The transmit frequency should be within 
15ppm of the selected channel frequency. Contact the Garmin AT factory for instructions on 
adjusting the frequency if required. 

The front bezel, keypad, and display can be cleaned with a soft cotton cloth dampened with 
clean water. DO NOT use any chemical cleaning agents. Care should be taken to avoid 
scratching the surface of the display.