Term
| Mode C Transponder - 3 things to know... |
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Definition
Connected to an altimeter
They send the pressure altitude
They send a four-digit ID. |
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Term
| Mode S Transponder – Five things to know… |
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Definition
Mode S transponders are compatible with transmitting the mode C signal, and…
Report in 25-foot increments
Receive information from a GPS receiver
Transmit location and speed.
Others can interrogate your transponder and get some useful data. |
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Term
Transponder (squawk) Codes –
A common one
3 uncommon, but important ones… |
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Definition
VFR: 1200
Emergency: 7700 (77, going to heaven)
Lost Communications: 7600 (76, radio nix)
Highjack: 7500 (75, taken alive) |
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Term
| 4096 code transponder, with encoding altimeter required in Classes / Areas: |
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Definition
Alpha
Bravo (and within 30 miles of a class B primary airport {mode C veil}),
Charlie
Above Class B and C, up to 10,000’
At or above 10,000 MSL, unless at/below 2,500 AGL, in the 48 states |
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Term
| Transponders must have been tested how frequently? |
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Definition
| Within the last 24 calendar months |
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Term
| TCAS as relates to Transponders - Two things to know... |
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Definition
TCAS = Traffic Collision Avoidance System.
A TCAS-equipped aircraft must have a Mode S transponder, but not all Mode S transponders include TCAS
Mode S has the same capabilities as Mode A and Mode C, and also responds to traffic alert and collision avoidance system (TCAS)- in equipped aircraft. |
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Term
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Definition
TCAS = Traffic Collision Avoidance System.
TCAS II offers pilots aural and visual warnings, as well as resolution advisories |
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