Zaon MRX-A Calibration ?

[Aviator1945]

For those who have ZAON MRX-A I need to recalibrate mine could you please help.

I need to know where should I set an item on the Administrative Menu.
P000 128 is what it shows on My MRX-A admin menu.
here are my settings for my field KTCY

RAN 5.0
ALT 2000 (feet)

Admin Menu
ALT 002
POOO 128
Based on Kollsman window altimeter pressure altitude of 29.92 of C172 Based on the field
Zaon Aero's Customer service is horrendous and non existent. I have called multiple times sent a fax and an email absolutely No response what so ever from the company . all I get is arecorded message on their phone line !

 

[Jim Logajan]

Zaon Aero's Customer service is horrendous and non existent. I have called multiple times sent a fax and an email absolutely No response what so ever from the company . all I get is arecorded message on their phone line !

While their web site is up ( http://www.zaon.aero/ ) several people (including my own attempt this morning) seem unable to get through to them by phone, fax, or email:

http://www.pilotsofamerica.com/forum/showthread.php?t=64965
http://www.vansairforce.com/community/showthread.php?t=105824

Not looking good....

 

[Jim Logajan]

I was seriously looking at getting one of these things. Are they worth it?

Someone mentioned the direction isn't terribly accurate, I know there's a cheaper model that just gives distance/altitude. Better to get that one?

I have the Zaon MRX (the cheaper unit.) The MRX displays estimated range in miles (e.g. 1.2) and difference in altitude in hundreds of feet (e.g. -2) of the most threatening target.

Most midairs occur near airports, but I think that is also where it is most difficult to take advantage of its warnings and alerts. Normally I can tell which aircraft in the pattern or on the ground that it is alerting me to, so it is somewhat redundant. Obviously the alerts to unseen/unheard traffic are the most useful.

Observing how the range and altitude difference change with time can clue you into whether you have plenty of time to spot the bogey because it is roughly pacing you (somewhere!), or it is closing so fast that it is likely somewhere ahead of you. I've had a couple of the latter exciting moments well away from airports. While no collision was likely, I doubt I would have seen the other airplane if the MRX hadn't alerted me to its existence.

Any other gadgets that do this?

Depends on your budget and the kinds of limitations you are willing to live with.

SkyguardTWX is probably the least expensive ADS-B transceiver that would give you much more traffic (and weather) information than the Zaon XRX could ever provide. Also, you may only be able to amortize the unit's cost over the next 6 years if they can't get their units fully approved by 2020.

Next up in cost (I think) is the NavWorx unit, which has the current advantage over the Skyguard unit of being TSO approved.

Lots of people sell ADS-B in (receivers) for less than the SkyguardTWX, but you'll only get traffic in areas where someone else nearby has an ADS-B transmitter to trigger traffic info from the ground radar and other ADS-B out equipped aircraft.

 

[Jim Logajan]

I think I read somewhere that ADS-B provides traffic information over a smaller percentage of the country than a Zaon does.

The Zaon relies only and entirely on information in Mode C transponder replies. The ADS-B in systems rely on information from other ADS-B out aircraft or ground transmitters that get their information from radar - the ground transmitters would probably not yet cover the same areas as surveillance radar.