Any pireps for PCAS MRX collision avoidance system?

On Jun 3, 2:41 pm, Andrew Sarangan wrote:
I have never flown with a TCAS, but I would think that relative
altitude and range should be enough help you see and avoid. But I do
have a question about these units. Do they work when there is no radar
facility nearby, or you are below the radar altitude?

The unit is passive, so relies on the other aircraft's transponder to
be replying to an interrogation. In Colorado, fairly low over the
mountains, one will be below radar coverage, so a VFR airplane with
transponder will not be interrogated, snd so will not be seen by the
MRX.

I have a few flights now with one of these and find that it does what
it's supposed to do. And that is give me a "heads up" when there is a
transponder nearby. At a glider contest, it will be constantly
reporting the towplanes as they drop off gliders nearby. Near a busy
GA airport, it will likely be the same. It will identify and tell you
about each new target within a few miles, so will reinforce your scan.

It's not a panacea, but just another tool to help me avoid getting run
down by a transponder equipped aircraft that may be flying "heads
down".

-Tom

In article om,
5Z wrote:

On Jun 3, 2:41 pm, Andrew Sarangan wrote:
I have never flown with a TCAS, but I would think that relative
altitude and range should be enough help you see and avoid. But I do
have a question about these units. Do they work when there is no radar
facility nearby, or you are below the radar altitude?

The unit is passive, so relies on the other aircraft's transponder to
be replying to an interrogation. In Colorado, fairly low over the
mountains, one will be below radar coverage, so a VFR airplane with
transponder will not be interrogated, snd so will not be seen by the
MRX.

The unit won't see other transponders, unless the other transponder is
interrogated by a TCAS-equipped aircraft.

--
Bob Noel
(goodness, please trim replies!!!)

The unit won't see other transponders, unless the other transponder is
interrogated by a TCAS-equipped aircraft.


Correct except for the last 4 words. ATC radar also intrerrogats
transponders.

Tony V.
http://home.comcast.net/~verhulst/SOARING

In article ,
Tony Verhulst wrote:

The unit won't see other transponders, unless the other transponder is
interrogated by a TCAS-equipped aircraft.


Correct except for the last 4 words. ATC radar also intrerrogats
transponders.

Note that I was responding to a poster discussing what happens
when you are below radar coverage.

--
Bob Noel
(goodness, please trim replies!!!)

Bob Noel wrote:


Note that I was responding to a poster discussing what happens
when you are below radar coverage.


Missed that. Thanks for the correction.

Tony