TRIG transponder any good ?

albertaflyer · #1 12-01-2010, 06:42 AM

Anyone with experience with trig 121 transponder? Thoughts?

Mel · #2 12-01-2010, 06:47 AM

I have a new Trig TT21. Only have a couple of flights so far. Installation and all testing so far is very impressive. Reports from ATC shows great and TIS traffic on Garmin 495 is fantastic.
972-784-7544 if you want to talk.

az_gila · #3 12-01-2010, 07:54 AM

It's essentially the same one that Dynon is selling.

PH-SCP · #4 12-01-2010, 01:28 PM

I had one in my Pelican. It worked just wonderfully, easy to operate and never had any complaints from ATC...

albertaflyer · #5 12-02-2010, 12:14 PM

Thanks guys I think I'm going to go with it. Pretty good price for mode s and the encoder.

WhiskeyMike · #6 02-05-2011, 11:36 PM

Is there anyone with experience flying the Trig in busy ATC environments and frequent squawk changes that can comment on the unit?s ?button-ology? for ease of use from a workload perspective? From looking at photos of the unit on their website it looks like there is a single knob that the user rotates to input/change codes, and I?m wondering how the usability of this method compares to the efficient keypad arrangement on the Garmin transponders. Thanks in advance for your feedback!!

Longez · #7 02-06-2011, 08:04 AM

Quote:

Originally Posted by WhiskeyMike

Is there anyone with experience flying the Trig in busy ATC environments and frequent squawk changes that can comment on the unit?s ?button-ology? for ease of use from a workload perspective? From looking at photos of the unit on their website it looks like there is a single knob that the user rotates to input/change codes, and I?m wondering how the usability of this method compares to the efficient keypad arrangement on the Garmin transponders. Thanks in advance for your feedback!!

Usability of the knob for code entry is a good question. I flew with a Terra TRT250D for 10 years which had knob entry of transponder code just like the Trig. I always hated it. Very high workload compared to the GTX327 I am using now, especially in turbulence.

Walt · #8 02-06-2011, 08:26 AM

I used an Appolo SL70 for a number of years before swithching to a 330, never really liked the inner/outer knob set up for code entry but cetainly not a show stopper. I do prefer the garmin design though.

Janekom · #9 11-10-2012, 04:56 AM

Can someone with a TT21 or similar please let me know what the Voltage Reading in the Configure pages should be?

I have a TT21 with a "Low transmit power" warning on the screen when it is on. If you go to the Configure pages at some stage there is a "Local Supply Voltage = 6.3V" message.

So my problem is that I do not know if it means some internal supply that should be 6.3V, or does it actually tell me the the supply to it is low.

Walt · #10 11-10-2012, 06:21 AM

Quote:

Originally Posted by Janekom

Can someone with a TT21 or similar please let me know what the Voltage Reading in the Configure pages should be?

I have a TT21 with a "Low transmit power" warning on the screen when it is on. If you go to the Configure pages at some stage there is a "Local Supply Voltage = 6.3V" message.

So my problem is that I do not know if it means some internal supply that should be 6.3V, or does it actually tell me the the supply to it is low.

The nominal voltage should be 6.5V, anything above 6v is fine according to the manual. This is the voltage to the head unit.