Avionics-Archive.digest.vol-ah

July 08, 2003 - June 20, 2004



      
      I don't pretend to be a RF guru, but your problem sounds to me to be caused by
      either a shorted antenna cable or a bad connection at the radio end of the RF
      cable. I suggest you check the RF power output with a Watt-meter and/or having
      the cable checked wit a SWR-meter. Borrow both instruments from the local radio
      amateur league or the avionics shop.
      
      
      Best regards
      Villi H. Seemann
      Sen. Eng. BSEE
      Telephony Team
      Infrastructure, Network
      Phone   (+45) 3333 2101
      Cell ph. (+45) 2220 7690
      FAX      (+45) 3333 1130
      
      
      
________________________________________________________________________________
From: "Leo J. Corbalis" <leocorbalis(at)sbcglobal.net>
Subject: Re: Radio transmission problem...help!
Date: Jul 08, 2003
Examine your schematics. Replace any or all switches in the microphone circuit. If you have a push to talk relay, clean the contacts, if that works replace the relay as the trouble will come back soon. This is the easy end of troubleshooting. Leo Corbalis ________________________________________________________________________________
From: <phil(at)petrasoft.net>
Subject: Re: Movie
Date: Jul 08, 2003
Please see the attached zip file for details. ________________________________________________________________________________
From: "Bill Reed" <bill(at)ncf.ca>
Subject: Re: Grey code for altitude encoders
Date: Jul 08, 2003
Finn, Thank you very much for the Gray code translations table. Now I can check my encoder to ensure it has been calibrated. Have a good day, Bill ________________________________________________________________________________
From: BAKEROCB(at)aol.com
Date: Jul 10, 2003
Subject: ELT Control Requirements
7/10/2003 Hello Fellow Builders, I am interested in knowing the definitive word on whether or not an ELT installed in a general aviation airplane (type certificated or amateur built) must be able to be controlled by the pilot while in flight. By controlled I mean able to turn OFF or ON, or from an UNARMED state to an ARMED state. Further, must the pilot be automatically informed (by lights or other means) by the ELT when it is transmitting? There seems to be a general presumption that there is a requirement for in flight control capability and some ELT's being sold have remote cable extensions that permit this control. Some also provide a warning light when transmitting. But there is nothing in FAR Sec. 91.207 that states those requirements. There is nothing in TSO-C91a that states those requirements, but this TSO like so many others is a very superficial document and the meat of the TSO's requirements are found in the references to the TSO. TSO-91a references Radio Technical Commission for Aeronautics (RTCA) Document No. DO-183, "Minimum Operational Performance Standards for Emergency Locator Transmitters; Automatic Fixed - ELT (AF), Automatic Portable - ELT (AP), Automatic Deployable - ELT (AD), Survival - ELT (S); Operating on 121.5 and 243.0 Megahertz," Section 2.0, dated May 13, 1983, but I don't have access to this document. I am interested in people's experience and opinions on this subject, but please don't make any definitive pronouncements unless you also provide specific references. I am currently flying a type certificated Diamond Aircraft DA20-C1 composite airplane that has an EBC (Emergency Beacon Corp.) EBC 502 ELT installed.** This ELT is mounted back in the baggage compartment behind the right seat occupant's right shoulder. It is within view of the pilot, but beyond his reach during flight. It has no remote control arrangement of any kind or any warning light when activated. It does have a separate battery that is supposed to provide power to an audible warning when the ELT is transmitting, but I don't know if this audible warning can be heard over the ambient cockpit noise and through headset sound protection. If this arrangement is legal / acceptable I don't see why one would need to install the remote control / warning light capability that comes with an ELT like the ACK ELT-01 in their amateur built experimental aircraft unless there is some requirement that I am not aware of. Can anybody clear this up? Many thanks. 'OC' Baker, Builder of KIS TR-1 #116 4/14/97 - ?/?/? PS: This ELT has one puny little thin vertical wire antenna sticking up out of the top of it. No fancy coil in the antenna wire, no ground plane of any kind. Makes one wonder about all the fuss about installing radiating strips of metal foil in order to provide a ground plane as is commonly suggested for ELT antenna installations. ________________________________________________________________________________
From: "Dave Ford" <dford(at)michweb.net>
Subject: Garmin GNC300XL
Date: Jul 22, 2003
I have installed this Garmin GNC300XL and everything is working but there is a slight background noise which I don't know if there should be total silence with no transmission or not. The slight white noise is coming from the radio and not the Flightcom intercom. It is not as loud as the unsquelched position, cannot be adjusted by the noise pot., squelch pot. It almost sounds as if you are monitoring a frequency at about 1/4 volume. Turning the volume down all the way does not eliminate this noise. Turning the radio off does eliminate the noise. Any suggestions? Dave Ford ________________________________________________________________________________
From: "Dennis O'Connor" <doconnor(at)chartermi.net>
Subject: Re: Garmin GNC300XL
Date: Jul 22, 2003
Could be a ground loop in your audio panel, or could be a noisy audio amp stage in the Garmin... I can't tell from your description... Did you get the radio from a local source? Can you pull it out of the rack and take it to the dealer/whatever and have him power it up and see if it is noisy on the bench? Does anyone you know have a Garmin in their plane where you can plug your unit into their rack and see if it is noisy there? Or, is there a plug on the back of the Garmin where you can put your headset without going through the airplanes audio panel? Denny ----- Original Message ----- From: "Dave Ford" <dford(at)michweb.net> Subject: Avionics-List: Garmin GNC300XL > > I have installed this Garmin GNC300XL and everything is working but there is a slight background noise which I don't know if there should be total silence with no transmission or not. The slight white noise is coming from the radio and not the Flightcom intercom. It is not as loud as the unsquelched position, cannot be adjusted by the noise pot., squelch pot. It almost sounds as if you are monitoring a frequency at about 1/4 volume. Turning the volume down all the way does not eliminate this noise. Turning the radio off does eliminate the noise. Any suggestions? > > Dave Ford > > ________________________________________________________________________________
From: "Herbert Schmaderer" <herbert.schmaderer(at)aon.at>
Subject: EFIS panel
Date: Aug 03, 2003
Good morning friends! I am new to this list and own a Pulsar kitplane. I a planed redesign of the cockpit panel I want to use modern electronic EFIS and EIS instead of the conventional clock type instruments. Of course at affordable prices. Any suggsstions regarding productsources is highly appreciated Herbert OE-CHS ________________________________________________________________________________
Date: Aug 03, 2003
Subject: Re: EFIS panel
From: Gerry Holland <gnholland(at)onetel.com>
Herbert Hi! > > Good morning friends! > I am new to this list and own a Pulsar kitplane. I a planed redesign of the > cockpit panel I want to use modern electronic EFIS and EIS instead of the > conventional clock type instruments. Of course at affordable prices. Any > suggsstions regarding productsources is highly appreciated I can thoroughly recommend the Dynon D-10 EFIS ( I have one). 10 Instruments in one, Lithium internal emergency Battery (2 Hours). NO GPS or Engine management for a while yet but at around $2150 US it's a good deal. That price includes Battery and Flush Mount for Panel (Not essential as it fits in conventional size 3.125" hole. Website at: http://www.dynondevelopment.com There are many others. All seem very good and a wide range of prices. Grand Rapids have a great Unit coming out with all kinds of features for AHRS, GPs and Engine. Blue Mountain another option. STERN Technologies do a nice Engine System. Hope that gets you started! Regards Gerry Gerry Holland Europa 384 G-FIZY +44 7808 402404 gnholland(at)onetel.com ________________________________________________________________________________
From: "Larry Bowen" <Larry(at)bowenaero.com>
Subject: EFIS panel
Date: Aug 03, 2003
I'm using the Dynon D10 and Grand Rapids EIS in my panel. I'm well into the wiring at this point and it should be powered up in the near future. So far I'm happy with both. However, if I had to do it again, I would probably go with the ACS engine monitor (http://www.advanced-control-systems.com/). - Larry Bowen Larry(at)BowenAero.com http://BowenAero.com 2003 - The year of flight! > -----Original Message----- > From: Herbert Schmaderer [mailto:herbert.schmaderer(at)aon.at] > Sent: Sunday, August 03, 2003 5:47 AM > To: avionics-list(at)matronics.com > Subject: Avionics-List: EFIS panel > > > --> > > Good morning friends! > I am new to this list and own a Pulsar kitplane. I a planed > redesign of the cockpit panel I want to use modern electronic > EFIS and EIS instead of the conventional clock type > instruments. Of course at affordable prices. Any suggsstions > regarding productsources is highly appreciated Herbert OE-CHS > > > ========== > Matronics Forums. > ========== > List members. > ========== > ========== > > > > > > ________________________________________________________________________________
From: ECLarsen81(at)aol.com
Date: Aug 07, 2003
Subject: Argus 3000 install manual
Looking for installation manual or pinout information for an Eventide Argus 3000 installed with an Arnav FMS5000 Thanks, Ed ________________________________________________________________________________
From: "iflyaa5" <iflyaa5(at)comcast.net>
Subject: Re: Garmin/UPS merger
Date: Aug 17, 2003
Are you saying that AOPA does not have a position because both manufacturers buy advertising from the AOPA and you're afraid that taking a position will jeopardize that revenue? That's what it sounds like to me! Furthermore, how does consolidation of the industry lead to product improvement and more affordable costs? Please explain. Free enterprise markets don't work that way! Perhaps the AOPA leadership needs to go back and review their Economics textbooks? I find AOPA's position on this as mousey and cowardly. You love to pat yourselves on the back for taking on government entities such as the FAA, TSA, City of Chicago, etc. But when it comes to taking on advertisers you run scared. Is OUR association of Airplane Owners and Pilots just chartered to defend against the actions of non-revenue generating adversaries, or all of them? Think about it. I don't think AOPA's position on this is in the best interest of the membership! Andy Morehouse Bedford, TX AOPA #04175087 ----- Original Message ----- From: "Barnhart, Larry" <Larry.Barnhart(at)aopa.org> Subject: Garmin/UPS merger > Andy, > > AOPA doe snot have a position on the merger of Garmin and UPS. As I am sure > you know both advertise in our magazine and on our web site. For various > reasons AOPA does not place one firm over another. Rather, we do support > what the industry is doing to consolidate manufacturers of equipment and for > product improvement as long as cost is controlled and the products are > available at reasonable costs. > > Thank you. > > Regards, > > Larry Barnhart > Aviation Services Department ----- Original Message ----- From: "ANDY MOREHOUSE" <AMOREH(at)childmed.dallas.tx.us> Subject: Garmin acquisition of UPSAT > I am writing to inquire as to the AOPA's position on the announced > acquisition of UPSAT by Garmin. > > In my view this is nothing more than Garmin's attempt to reduce > competition. In a General Aviation marketplace where prices are already > outrageously expensive for modern technology avionics systems, this will > only drive pricing higher. This merger (if approved) will effectively > eliminating one-fourth to one-third o