ARC-5 frequencies

[swiss_lipo]

Hello,

 

I have recently installed the MIG-15 module and one thing I can really not get to work is the ARC-5 radio navigation system.

 

When I turn the switch to modify the frequencies range, the switch rotates to every three positions but the indicator remains blocked only on the first frequencies range (see pics).

 

Am I missing a point to enable the two other frequencies range ?

 

Thanks for help

[Britchot]

That switch to the right of the green light should be on Compass, is it?

 

Radio Compass Mode Selector to КОМП= COMP (Auto Compass mode)

[swiss_lipo]

Hi Britchot,

 

Yes indeed the correct position is on Compass. But I tried all positions as it did not work (even shortly earlier today).

 

But I found something useful I think. After testing the system on an airborne start, everything worked well. So I pondered about what might have gone wrong on the ground.

 

And the most plausible answer is, I think, electrical power. I have noticed that if you do not respect the procedure with electrical power, you may ruin the battery, and indeed, in that situation I was unable to change the frequencies, again.

 

But if you do things in the correct order, and use properly the gound power supply, everything works...

 

So I think this thread can be set as SOLVED, yet who knows, it might help other people having the same problem as me.

 

And thanks for answering :thumbup:

[Britchot]

No worries, I’m glad you were able to find something out. I use ground power on my starts so I wouldn’t have guessed that the battery could have been the cause.

[Akatsuki]

And don’t forget to keep the engine RPM above 4000 or it won’t generate enough to keep the battery charged.

[Art-J]

That being said, If I recall correctly rotating the switch in the real thing (sitting in one in the museum), the indicator was a strictly mechanical device connected to the switch, so battery power, or ground power, or Girl Power, or Power Rangers or whatever power should be irrelevant :D.

 

Looks like a bug / incorrect implementation then, but not serious issue.

Edited March 6, 2018 by Art-J