Anyone ever panel mounted a PCAS MRX?

Just wondering if you could share any lessons learned before I do
this. Zaon sells an extension kit for the antenna, and a panel mount
kit ( http://www.zaon.aero/content/view/2/41/ ) Any antenna mounting
dos and don't for this device? Can I put it next to the transponder
antenna? I will put a ferrite bead on the power line as noted in
earlier posts. I was also thinking of running the audio into the aux
line of my radio to mix in the alerts into the headset. Anyone ever
done this?

Thanks,

Matt (Jr)

On Apr 1, 9:15*pm, "Matt Herron Jr." wrote:
Just wondering if you could share any lessons learned before I do
this. Zaon sells an extension kit for the antenna, and a panel mount
kit (http://www.zaon.aero/content/view/2/41/) Any antenna mounting
dos and don't for this device? *Can I put it next to the transponder
antenna?

[snip]

Within reason. The installation manual addresses minimum spacing
between antennas.

For a carbon fuselage I would not be rushing to drill another hole to
mount the Zaon antenna. For a fiberglass fuselage you might find a
home for the antenna somewhere inside away from metal components.

The helical antenna the MRX comes with is not the same as a 1/4 wave
antenna and does not need a ground plane. If you use a traditional
transponder/DME 1/4 wave antenna you need a ground plane just like
when installing it for a transponder.

If you want to make the antenna remote you need to go to larger coax
and BNC connectors rather than the thin stuff and SMA connectors used
for the short antenna extension. More adapters and thick coax to deal
with.

Personally I'd try to avoid using a transponder antenna and do
something simple like use the small helical antenna on suction cups to
hold it some place handy near the instrument panel. Before doing
anything fly with the Zaon just on top of your panel and make sure it
works OK (reads the local transponder OK, etc.) and you are happy with
it. If you have space near the top of the panel I'd also consider
simple things like using the antenna attached to the unit and poking
though a hole in the top of the instrument panel cover/glareshield. As
long as it is clear of metal things behind the panel.


Darryl

Thanks Darryl.

Any thoughts on running the PCAS audio out into the aux in on the
radio?

I put my MRX on the canopy sidewall. My panel is full with
transponder, clearnav, etc., and I didn't want anything on top of the
glareshield. It works fine on the side wall of the canopy, and there's
no interference.
John Cochrane

On Apr 3, 7:18*am, John Cochrane
wrote:
I put my MRX on the canopy sidewall. My panel is full with
transponder, clearnav, etc., and I didn't want anything on top of the
glareshield. It works fine on the side wall of the canopy, and there's
no interference.
John Cochrane

Out of interest where is the antenna? Did you use the short extension
one with suction cups?

Somewhat away from metal objects, with a line of sight to as much of
the outside world as possible, not hiding behind carbon fiber and
vertically oriented are the things to try for.

Darryl

Hi Gang
I own 3 MRXs and have them mounted on the glare shields of the
SparrowHawk, the Stemme and the Jabiru J250 above the instrument
panel. They all work fine. This is the best place for them especially
for carbon fiber ships as they then have good RF visibility to pick up
signals. Secondly the cross sectional area of the front of the MRX is
so small as not to significantly affect visibility looking forward and
their red LED display and audio transducer are right in front of your
nose for good visibility and audibility. Although the MRX will get hot
on the glare shield this does not appear to be a problem. Next the
small antenna that connects to the side of the MRX works just fine.
Don't mess around with remote antennas - not necessary. Use the velcro
buttons that come with the MRX to attach the MRX to the glare shield.
Finally although the MRX can use a couple of internal AAA batteries it
is better to connect to the glider 12 volt battery. On all 3 of my
flying machines I have added 12 volt auto sockets and use the power
cables that come with the MRX.
So what are you waiting for? Go buy one and enhance your flying
safety. Probably the best bang per buck for safety around. For the
best price Google "Zaon MRX" and you will find the best price is $449
with free shipping and no tax. Again what are you waiting for?
Dave

PS Although the MRX will enhance safety I want to make it clear that
it should come after the installation of a transponder. The single
most important safety item is a transponder. Unfortunately it is also
much more expensive than the MRX.

On Apr 2, 11:45*pm, Matt wrote:
Thanks Darryl.

Any thoughts on running the PCAS audio out into the aux in on the
radio?

Matt

My main thought is not to wear headphones when flying a glider!

I wear a headset (Clarity Aloft - highly recommended, compact and good
for noisy environments) in the motorglider but take them off as soon
as the noisy thingy gets put away. I want to be relaxed and hear the
glider and audio vario (turned way down low) talk to me.

If you have to wear headphones in a conventional glider then just
turning the volume up on the MRX may be enough as its piezo sound can
be pretty piercing. Also As Dave Bingham says, mounting the unit right
on top opf the glareshield gets that bright display in your field of
vision and makes it easy to quickly check the range/altitude if you
get an audio alert (so you can quickly get your head out of the
cockpit again). I mounted my MRX on both my DG-303 and ASH-26E on the
top of the glareshield with 3M Dual-Lock adhesive fastener tape (much
stronger than velcro and the adhesive does not turn to a messy slime
on hot days anywhere near as easily as the real Velcro brand high-
strength stuff does) and also attached a little sunshield made of 1/8"
thick matt acrylic sheet to the top of the MRX to make the display
even more readable and the air-gap between the sheet and the Zaon
seems to keep it cool on hot days. On the ASH-26E the Zaon actually
sits level on an angled base I made just to the side of center top of
the instrument panel cover. That way it's a bit lower and does not
obstruct the compass.

My MRX is at the gliderport and not home so I can't test it - does the
piezo speaker in the MRX still sound when the audio plug is connected
or does it disconnect the internal piezo speaker? If so that may be a
pain to have to keep unplugging it when not wearing headphones and
plug it back in again etc.

You say aux input on the radio. What radio? If a Becker AR4201 that
aux input was primarily designed for taking the speaker level audio
output from an ADF or VOR and routing it to a common speaker in small
aircraft that don't have an audio panel. The audio output from the
Zaon is intended to drive headphone/line in type inputs, but Zaon
don't seem to give exact specs. You may have to turn up the
sensitivity of the Becker AR4201 aux input. On the 4201 hold down the
MDE (Mode) key and turn on the unit. Press MDE until you see SF3
that's the aux audio input sensitivity. Play with adjusting that.

But again I think you are seriously over complicating a perfectly
simple install. I'd start by just sticking the unit on top of the
glareshield and see how it goes.

Darryl

On Apr 3, 10:01*am, Darryl Ramm wrote:
On Apr 2, 11:45*pm, Matt wrote:

Thanks Darryl.

Any thoughts on running the PCAS audio out into the aux in on the
radio?

Matt

My main thought is not to wear headphones when flying a glider!

I wear a headset (Clarity Aloft - highly recommended, compact and good
for noisy environments) in the motorglider but take them off as soon
as the noisy thingy gets put away. I want to be relaxed and hear the
glider and audio vario (turned way down low) *talk to me.

If you have to wear headphones in a conventional glider then just
turning the volume up on the MRX may be enough as its piezo sound can
be pretty piercing. Also As Dave Bingham says, mounting the unit right
on top opf the glareshield gets that bright display in your field of
vision and makes it easy to quickly check the range/altitude if you
get an audio alert (so you can quickly get your head out of the
cockpit again). I mounted my MRX on both my DG-303 and ASH-26E on the
top of the glareshield with 3M Dual-Lock adhesive fastener tape (much
stronger than velcro and the adhesive does not turn to a messy slime
on hot days anywhere near as easily as the real Velcro brand high-
strength stuff does) and also attached a little sunshield made of 1/8"
thick matt acrylic sheet to the top of the MRX to make the display
even more readable and the air-gap between the sheet and the Zaon
seems to keep it cool on hot days. On the ASH-26E the Zaon actually
sits level on an angled base I made just to the side of center top of
the instrument panel cover. That way it's a bit lower and does not
obstruct the compass.

My MRX is at the gliderport and not home so I can't test it - does the
piezo speaker in the MRX still sound when the audio plug is connected
or does it disconnect the internal piezo speaker? If so that may be a
pain to have to keep unplugging it when not wearing headphones and
plug it back in again etc.

You say aux input on the radio. What radio? If a Becker AR4201 that
aux input was primarily designed for taking the speaker level audio
output from an ADF or VOR and routing it to a common speaker in small
aircraft that don't have an audio panel. The audio output from the
Zaon is intended to drive headphone/line in type inputs, but Zaon
don't seem to give exact specs. You may have to turn up the
sensitivity of the Becker AR4201 aux input. *On the 4201 hold down the
MDE (Mode) key and turn on the unit. Press MDE until you see SF3
that's the aux audio input sensitivity. Play with adjusting that.

But again I think you are seriously over complicating a perfectly
simple install. I'd start by just sticking the unit on top of the
glareshield and see how it goes.

Darryl

Oh well I realize the stupid logic there, even if the MRX internal
piezo speaker disconnected when you plugged in the audio out connector
you would still have the traffic alert through the radio speaker.

Darryl