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#1
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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) |
#2
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Anyone ever panel mounted a PCAS MRX?
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 |
#3
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Anyone ever panel mounted a PCAS MRX?
Thanks Darryl.
Any thoughts on running the PCAS audio out into the aux in on the radio? |
#4
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Anyone ever panel mounted a PCAS MRX?
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 |
#5
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Anyone ever panel mounted a PCAS MRX?
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 |
#6
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Anyone ever panel mounted a PCAS MRX?
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. |
#7
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Anyone ever panel mounted a PCAS 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 |
#8
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Anyone ever panel mounted a PCAS MRX?
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 |
#9
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Anyone ever panel mounted a PCAS MRX?
On Apr 3, 9:17*am, kd6veb wrote:
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. I strongly disgree with that position. A PCAS offers the host aircraft pilot increased awareness of all promimate transponder equipped aircraft. A transponder offers the host aircraft pilot no increased awareness of proximate aircraft unless receiving ATC services. It also provides pilots of proximate aircraft no increased awareness or protection unless they are either TCAS or PCAS equipped , or are receiving ATC services. Off all the near misses I have had in 30 years of flying gliders I estimate that none would have been avoided by my having a transponder and nearly all of them would have been mitigated by PCAS. Please note that I am not arguing against transponders, only about the relative merits of PCAS and transponders. I only have one MRX but it is portable and I seldom fly anything without it. Andy |
#10
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Anyone ever panel mounted a PCAS MRX?
On Apr 3, 11:26*am, Andy wrote:
On Apr 3, 9:17*am, kd6veb wrote: 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. I strongly disgree with that position. *A PCAS offers the host aircraft pilot increased awareness of all promimate transponder equipped aircraft. *A transponder offers the host aircraft pilot no increased awareness of proximate aircraft unless receiving ATC services. *It also provides pilots of proximate aircraft no increased awareness or protection unless they are either TCAS or PCAS equipped , or are receiving ATC services. Off all the near misses I have had in 30 years of flying gliders I estimate that none would have been avoided by my having a transponder and nearly all of them would have been mitigated by PCAS. Please note that I am not arguing against transponders, only about the relative merits of PCAS and transponders. I only have one MRX but it is portable and I seldom fly anything without it. Andy Many of us are impressed by the Zaon MRX as a tool to improve traffic awareness. However I think Dave is talking locations like near Reno where the concern is avoiding fast jets and commercial aircraft. In which case we need pilots to install transponders, ATC will see you (they often can't see primary radar returns) and TCAS in (almost all) of the fast Jets and all of the airliners will do a much better job of avoiding you than PCAS can in helping you avoid an airliner. The relatively short range of PCAS type solution, a short delay in identifying the threat aircraft, and the potential high closure rate of a jet (above 10,000') may not provide much useful warning. ATC Radar and TCAS as the ultimate backup is going to be much more effective. We had a near miss recently (this year) between an airliner and a glider at Reno. We had a collision between a Hawker 800 and an ASG-29 a few years ago. Neither glider were using transponders or in communication with Reno approach. If you fly near Reno its transponder first please, follow the PASCO radio procedures and be in communications with Reno approach (see http://www.pacificsoaring.org/safety..html#transponder) and then maybe think about having a PCAS for enhancing your traffic awareness. Going for a PCAS before a transponder in a Reno traffic like environment would be a bad choice. Darryl |
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