Garmin 330

Just got the Garmin 330 Mode S transponder installed in my Archer. The traffic
display on the 430 is great. My question is "What does the mode S do for the
controller that the Mode C doesn't?"
Chuck

as I understand it.. a full ModeS system would allow you to receive and
acknowledge ATC clearances and weather information without a radio call..
just for starters.. but I don't think it is all online yet.

It allows digital data transmission to and from the aircraft without tying
up the radio.

BT

"PaulaJay1" wrote in message
...
Just got the Garmin 330 Mode S transponder installed in my Archer. The
traffic
display on the 430 is great. My question is "What does the mode S do for
the
controller that the Mode C doesn't?"
Chuck

I believe it also provides the controller with your tail number
automatically. -Sami

PaulaJay1 wrote:

Just got the Garmin 330 Mode S transponder installed in my Archer. The traffic
display on the 430 is great. My question is "What does the mode S do for the
controller that the Mode C doesn't?"
Chuck

On Mon, 19 Apr 2004 21:42:51 -0500, "O. Sami Saydjari"
wrote:

I believe it also provides the controller with your tail number
automatically. -Sami

Yup. If you look at the Fed's registration database:

N2057M is Assigned

Assigned/Registered Aircraft

Aircraft Description

Serial Number 28R-7803103 Type Registration
Corporation
Manufacturer Name PIPER Certificate Issue Date 02/06/2004
Model PA-28R-201T Status Valid
Type Aircraft Fixed Wing Single-Engine Type Engine Reciprocating
Pending Number Change None Dealer No
Date Change Authorized None Mode S Code 50323757
MFR Year 1977 Fractional Owner NO

The mode S code is hard-wired into your transponder and tells big
brother who you are.

They also have a provision for pilot-programmable "flight" number.

Other biggie is for TCAS resolution advisory capability, the xpdr's
talk to each other to ensure a compatible resolution (as in plane A
climb, plane B descend).

TC

At this point, it doesn't do anything more than mode C.

The assigned mode S code is currently not being programmed into the
transponder, and the controller still doesn't get your tail number
until you give it to him.

Eventually...

On Mon, 19 Apr 2004 21:42:51 -0500, "O. Sami Saydjari"
wrote:

I believe it also provides the controller with your tail number
automatically. -Sami

PaulaJay1 wrote:

Just got the Garmin 330 Mode S transponder installed in my Archer. The traffic
display on the 430 is great. My question is "What does the mode S do for the
controller that the Mode C doesn't?"
Chuck

PaulaJay1 ) wrote:

Just got the Garmin 330 Mode S transponder installed in my Archer. The
traffic display on the 430 is great. My question is "What does the mode
S do for the controller that the Mode C doesn't?"

I am considering upgrading to the G330 transponder with an interface into
the G430. Do you have the audible traffic alerts feature that calls out a
potential traffic alert over the intercom? If so, what is that like
(especially around congested airports)?

--
Peter

Peter,

Do you have the audible traffic alerts feature that calls out a
potential traffic alert over the intercom? If so, what is that like
(especially around congested airports)?


Yep. Best if you download the free 330 manual from Garmin, it's all in
there. You have a choice between male and female voices and a beep.
Annunciations include "Traffic", "Traffic nearby" or some such,
"Traffic (not) available" and "Leaving altitude" if you have set an
altitude alert on the 330. I found it quite useful in the Phoenix area.
Only once did the "traffic not available" collide with the tower's
landing clearance.

--
Thomas Borchert (EDDH)

writes:

At this point, it doesn't do anything more than mode C.

The assigned mode S code is currently not being programmed into the
transponder, and the controller still doesn't get your tail number
until you give it to him.

Where did you get that? Programming the FAA assigned mode S code was
part of my installation, and I'm told part of every GTX330 installation
at the shop I went (Avionics West).

-jav

Peter R. writes:

I am considering upgrading to the G330 transponder with an interface into
the G430. Do you have the audible traffic alerts feature that calls out a
potential traffic alert over the intercom? If so, what is that like
(especially around congested airports)?

You do get traffic alerts. I fly in the San Francisco Bay area and
relatively frequently in Los Angeles. You could call those areas
busy airspace... so far, I've not had problems with the transponder
stepping on controllers.

You have a choice of traffic alerts in male and female voices. The
installation shop configured my GTX330 to use the female voice, I've
not felt compelled to change it, mostly because most controller voices
are male and so it's easy to distinguish between a controller and the
transponder. The female voice has a british accent, I don't know about
the male voice.

-jav

Javier Henderson ) wrote:

You have a choice of traffic alerts in male and female voices. The
installation shop configured my GTX330 to use the female voice, I've
not felt compelled to change it, mostly because most controller voices
are male and so it's easy to distinguish between a controller and the
transponder. The female voice has a british accent, I don't know about
the male voice.

That's great! Thanks.

--
Peter