Trig TT21 transponder for sale

this is within a very few $ of what I sell new TRIG T21's for.....with
factory warranty!
tim
Please visit the Wings & Wheels website at www.wingsandwheels.com

"Jim" wrote in message
...
On Wednesday, September 5, 2012 5:27:09 PM UTC-4, K wrote:
On Sunday, September 2, 2012 8:22:36 PM UTC-6, Dave Springford wrote:

Trig TT21 $2050







New in box







The TT21 system is the smallest, lightest, Mode S general aviation
transponder. This two part system, includes an integrated altitude
encoder.



A small control unit mounts in a 57 mm hole in the panel and the rest
of the unit can be mounted anywhere.







contact dave at foxonecorp.com



I am interested in buying this and I am wondering, With this unit being a
Class 2 transponder, What happens above 15,000 feet? I fly in places
where the good days occasionally allow for climbs and some cruising above
this. Thanks

Over 15000 you would want the Trig22. The Trig21 is only certified to 15K.
Of course, who would know?

On 9/5/2012 2:27 PM, K wrote:
I am interested in buying this and I am wondering, With this unit
being a Class 2 transponder, What happens above 15,000 feet?

The same thing that happens at 15,000 feet. It will do want needs to be
done, but if you will frequently fly above 18,000' outside of a "wave
window", consider the higher power unit.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to
email me)
- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm
http://tinyurl.com/yb3xywl

On Thursday, September 6, 2012 10:07:44 PM UTC-6, Eric Greenwell wrote:
On 9/5/2012 2:27 PM, K wrote:

I am interested in buying this and I am wondering, With this unit

being a Class 2 transponder, What happens above 15,000 feet?



The same thing that happens at 15,000 feet. It will do want needs to be

done, but if you will frequently fly above 18,000' outside of a "wave

window", consider the higher power unit.



--

Eric Greenwell - Washington State, USA (change ".netto" to ".us" to

email me)

- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm

http://tinyurl.com/yb3xywl

Eric,
Thanks for the link. I never knew SSF had its own website. I mostly fly in Northern UT and the Reno area so 15K on a good day is not unrealistic. I have no desire to fly the high altitude wave you mention. My question "What happens at 15,000" was mainly referring to what is ATC going to see on the scope. If the display on the scope (Or TCAS) tops at 15K then I may need to keep shopping. If this unit will display PA altitudes between 15 and 17K then, for the small amount of time I spend at these altitudes, this unit would probably do.
Just bought a new ship and I am in the process of setting up (Completely redoing) the panel so you guys may have to suffer through my silly questions for awhile.
Kirk

On Sep 7, 8:08*am, K wrote:
On Thursday, September 6, 2012 10:07:44 PM UTC-6, Eric Greenwell wrote:
On 9/5/2012 2:27 PM, K wrote:

I am interested in buying this and I am wondering, With this unit

being a Class 2 transponder, What happens above 15,000 feet?

The same thing that happens at 15,000 feet. It will do want needs to be

done, but if you will frequently fly above 18,000' outside of a "wave

window", consider the higher power unit.

--

Eric Greenwell - Washington State, USA (change ".netto" to ".us" to

email me)

- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm

http://tinyurl.com/yb3xywl

Eric,
Thanks for the link. I never knew SSF had its own website. I mostly fly in Northern UT and the Reno area so 15K on a good day is not unrealistic. I have no desire to fly the high altitude wave you mention. My question "What happens at 15,000" was mainly referring to what is ATC going to see on the scope. If the display on the scope (Or TCAS) tops at 15K then I may need to keep shopping. If this unit will display PA altitudes between 15 and 17K then, for the small amount of time I spend at these altitudes, this unit would probably do.
Just bought a new ship and I am in the process of setting up (Completely redoing) the panel so you guys may have to suffer through my silly questions for awhile.
Kirk * * *- Hide quoted text -

- Show quoted text -

The TC 20 control unit is the same for both the TT21 and TT22. The
altitude encoder is part of the TC 20 control unit.

On 9/5/2012 2:27 PM, K wrote:
What happens above 15,000 feet?

http://www.airplanegear.com/trig/tt2...all-manual.pdf

The installation manual has a more complete technical specification
and a careful reading may answer your question. Other than power output, much of the spec seems identical, but there may be some subtle and important differences.

The difference between class 1 and 2 transponders is the power output. Class 1 typically around 175 Watts or lower and class 2 250 W.

The higher power of the class 2 for greater transmission distance for the high flyers.