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#2
August 18th 03, 01:04 AM
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Snowbird wrote:
: I know the KI-209a will accept input from a GPS. : Is that just for the left-right course deviation indicator, or : is it set up to accept input to the glideslope as well, for use : w/ VNAV? Anyone know? : Alternatively: is the output from the glideslope receiver/input : to the glideslope portion of the CDI some sort of funky King : signal which the CDI has to decode, or is it straight analog? Sydney, the GS signal is a standard signal for almost all radios, something like +/- 150 microamps. As I recall it is not switched with the GPS relay, but it has been a while. The left-right of KI209a has an input for "composite" VOR signal which is what a KX-155 or KX170 outputs, and a second input for +/- volts which is what the GPS outputs. A relay inside the KI-209a switches these two sources. The OBS is also switched so that the GPS can use it, as many IFR GPS require an OBS. -- Aaron Coolidge (N9376J) 
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