Garmin apollo sl30 comm Manuale Utente

Set up the SL30 for the indicator head type that it is connected to by using the Setup Mode as 
follows.  

1.  Rotate the large knob to the S

ELECT 

I

NDICATOR 

H

EAD 

T

YPE

 display.  

2.  Press SEL. The type will flash.  
3.  Turn the small knob to select desired option: N

ONE

, R

ESOLVER

, C

ONVERTER

, or S

ERIAL

. 

Selecting the R

ESOLVER

 option requires calibration, which is available by turning the 

large knob CW to the next display. The options are defined as follows: 
•  N

ONE

: No external resolver is supported. OBS mode allows the user to edit the OBS 

with concentric knobs. Serial OBS update messages are supported in this mode, but 
the unit will not flag if updates are discontinued or are not periodic. 

•  R

ESOLVER

: Auto-decodes resolver setting via six-wire resolver interface. Uses 

internal DSP to compute course information. 

•  C

ONVERTER

: Disables all internal OBS functions. Disables VOR monitor and BC 

selection. It allows use of conventional external converter via the composite output 
pin. 

•  S

ERIAL

: For use with serial Electronic Flight Instruments (EFIS) conforming to 

Garmin AT SL30 serial data specification. See Appendix E – Serial Interface 
Specifications. If serial OBS data is not received at a minimum 1 Hz rate, the NAV 
unit will flag. 
Note: No serial test messages are sent in the Setup Mode while testing CDI and GSI 
flags. 

4.  Press ENT to accept and save the selected option.  

 

After selecting R

ESOLVER

 as the indicator head, it is necessary to calibrate the interface 

between the SL30 and the resolver. The SL30 cannot drive multiple resolvers at the same 
time. It is not recommended that external resolvers be switched through a relay or other 
means because the resolver must be calibrated to the radio as described in this procedure. If 
multiple resolvers are desired in the installation, the primary unit must be installed and 
calibrated as described here. The secondary unit should use the composite output. 

1.  After selecting R

ESOLVER

 as the indicator head type, turn the large knob to the P

RESS 

SEL

 TO 

C

ALIBRATE 

R

ESOLVER

 display.  

2.  Press SEL.  
3.  Follow the directions on the SL30 display.  
Note: The accuracy of the system is dependent on this calibration. Do not rush this step. 
4.  At the end of the setup, press ENT to store the results. 
5.  Cycle the power switch (enter the normal mode). 
6.  Tune a VOR station (any VOR frequency). 
7.  Press OBS button. 
8.  Verify that the OBS decodes properly from 0 to 360 degrees. 

If the SL0 will not accept the calibration or advances to the next prompt when the ENT key is 
pressed, there may be a problem with the resolver interface.