Hm... could use a bit of wind correction, couldn't it?
Transponder Function Buttons - Purpose?
- Thread starter WDD
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And then there's a chance you never will. I do have to admit that I don't remember hearing ATC tell anyone to not squawk their altitude for a long time. Maybe since the introduction of Mode S and then ADS-B.
But then Mode S was probably 30 years ago... So that matches up with what was probably the last update to the ATC system.
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Now that you mention it, no I haven’t. Seems like aviation panels have been changing a bit and I “assumed” that was just the way it was.
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A guy / gal starting lessons today would think a plane with a GNS should be in a museum.
I also wonder about VOR nav training. From my first lesson seven years ago to today seems like finding a working VOR to use and practice with is harder than finding someone to help you at the Home Depot. I know - this is the magenta age. But good to know how to turn on that nav radio just in case.
I also wonder about VOR nav training. From my first lesson seven years ago to today seems like finding a working VOR to use and practice with is harder than finding someone to help you at the Home Depot. I know - this is the magenta age. But good to know how to turn on that nav radio just in case.
clear_prop
Pre-takeoff checklist
I had a rental plane with an altitude encoder that went bad ~15 years ago, and ATC asked me to stop squawking altitude.
They still let me into the Bravo returning from the Bay Tour to Palo Alto.
They still let me into the Bravo returning from the Bay Tour to Palo Alto.
When evacuating my plane out of VKX five weeks after 9/11 (the earliest they would let us move it), I found my static system had plugged right after takeoff. ATC had me stop altitude squawk then.
Clip4
Touchdown! Greaser!
pfarber
Pattern Altitude
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ummm here at ATL your code is on all the time... at the busiest airport in the world.
they use it for some sort of ground radar movement tracking.
I missed your original post, but I'll second the post I just saw from @pfarber. It changed a long time ago to leave your Transponder on at all times.
AIM: 4−1−20. Transponder and ADS−B Out Operation
3. Transponder and ADS-B operations on the ground. Civil and military aircraft should operate with the transponder in the altitude reporting mode (consult the aircraft’s flight manual to determine the specific transponder position to enable altitude reporting) and ADS−B Out transmissions enabled at all airports, any time the aircraft is positioned on any portion of the airport movement area.... (it continues)
pfarber
Pattern Altitude
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Movement areas would not include ramps/pads or terminals.... but the xpndr and ads-b is always turned on (at my company) at the gate when on APU... one less thing to do while taxing. IIRC when pilots get CPCD (i think that's the right one) clearance it includes a code for IFR routing. For MX, none of our MM"s require we touch xpndrs or ads-b for normal MX.
Way back (when the 430 was the new kid on the block) I do remember the checklist item to set XPNDR to STBY as part of the post landing checklist and part of post runup was set XPNDR to ALT on the 172s and 150s I flew.
I fly GA, but do the same thing since the change. Transponder goes on with the Avionics Master.
My GTX345 will go into Ground Mode below 30ish Kts, but still transmits and looks for ADS-B Data. So I'll see other ground traffic if they are also transmitting.
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Funny - I wasn’t aware there was a time when the transponder didn’t come on and transmit when you turned on the avionics master.
HA! How quickly we forget... What is the OP question in this thread????
To recap... Back in the day transponders had cathode ray tubes (CRT) in them. Tube technology (radios, TVs, big TV transmitters, etc.) actually worked pretty well, HOWEVER they needed to be at their operating temperature to work within specifications. So when you first turned on your Transponder, you put it in Standby (SBY) for a few minutes for the CRT to warm up. It usually only took a couple of minutes, so the post startup checklist and taxi time usually was enough time. When you were cleared onto the runway (or were about to enter the Rwy at a Non Towered Apt), you'd go through your quick "Lights, Camera, Action" check list. Lights = Strobes, Landing Light, etc. Camera = Switch the Transponder to ALT (ATC taking pics of you) Action = Final check of the Base and Final and taxi onto the runway.
Just a slight correction - transponders had vacuum tubes, most of them a triode in a tuned cavity. CRTs are a a specific type of vacuum tube used to display images.
Dang, I knew in the back of my head that didn't sound right... But old habits are hard to break and have written way to much about video in a past life.
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My first PPL lesson was in 2017. I wonder what a person taking their first lesson in 2027 will see me do and think "Dang, that's old school". "You all used to use leaded gas, two nav radios, vacuum pump driven DG and Attitude Indicator, etc. ????"
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It will all be Skynet AI