RonSwanson Posted May 5, 2022 Report Posted May 5, 2022 I'm trying to figure out whats going on with my m20c. I just got my king 155 back from being rebuilt and having a new LED screen put in. It is worth stating that I am new to ILS and shooting approaches, but anyway, when I put in the LOC frequency in my nav radio, ill hit the flip flop button and I can see the glideslope needle bounce but then it just stays in the middle. I tried a few approaches with it yesterday and the LOC needle is functioning just fine but the glideslope needle does nothing. Now I will say that even though the nav radio was just rebuilt, I have no faith in the shop that did it. So is this potentially an issue with the radio, some other hardware, or is it maybe just user error?
N201MKTurbo Posted May 5, 2022 Report Posted May 5, 2022 Some have glideslope, some don't. Does yours have the glideslope receiver? Did it ever work? Have you asked the shop that worked on the radio about it? 2
Fly Boomer Posted May 5, 2022 Report Posted May 5, 2022 3 hours ago, RonSwanson said: glideslope needle bounce but then it just stays in the middle Check your part number: 14 volt WITHOUT glideslope P/N: 069-1024-00 - 720 COMM channels P/N: 069-1024-02 - 720 COMM channels, wider 50 kHz receiver selectivity P/N: 069-1024-08 - 720 COMM channels, audio amplifier P/N: 069-1024-10 - 720 COMM channels, wider 50 kHz receiver selectivity, audio amp P/N: 069-1024-30 - 760 COMM channels P/N: 069-1024-32 - 760 COMM channels, wider 50 kHz receiver selectivity P/N: 069-1024-38 - 760 COMM channels, audio amplifier P/N: 069-1024-40 - 760 COMM channels, wider 50 kHz receiver selectivity, audio amp 14 volts WITH glideslope P/N: 069-1024-01 - 720 COMM channels P/N: 069-1024-03 - 720 COMM channels, wider 50 kHz receiver selectivity P/N: 069-1024-12 - 720 COMM channels, audio amplifier P/N: 069-1024-31 - 760 COMM channels P/N: 069-1024-33 - 760 COMM channels, wider 50 kHz receiver selectivity P/N: 069-1024-42 - 760 COMM channels, audio amplifier 5
RonSwanson Posted May 10, 2022 Author Report Posted May 10, 2022 Alright, that was really stupid of me, I didn't realize that some didn't have glideslope capability. I just assumed since it had a glideslope needle that is was hooked up with it, turns out that my nav radio doesn't have it. Thank you guys for answering a stupid question from a newbie, now looks like I have to go spend some more money.
carusoam Posted May 10, 2022 Report Posted May 10, 2022 Lesson learned about old planes…. Making sure everything in the pics works… as expected… Questions you can ask before settling on the price…. For flying in low IMC… people like to have two resources to get back down… The ILS is one, the WAAS GPS is the other… Of course two displays to go with the receivers is important as well… And of course… knowing where VMC is is always helpful… PP thoughts only, not a CFI… Best regards, -a-
Mooney Dog Posted May 10, 2022 Report Posted May 10, 2022 1 hour ago, RonSwanson said: looks like I have to go spend some more money. I think we all know this feeling. If you do upgrade though i highly recommend the GNC 255. Its been well worth the money for me.
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