---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 12/27/04: 15 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:47 AM - Re: Garmin 196 vs 295 (Fox5flyer) 2. 05:36 AM - Re: push-to-test (Kenneth Melvin) 3. 06:06 AM - Re: E-mail Contact Request (Robert L. Nuckolls, III) 4. 08:16 AM - Re: Re: KN65A DME (Franck ILMAIN) 5. 08:16 AM - Re: Garmin 196 vs 295 (Brian Lloyd) 6. 08:24 AM - Garmin 196 vs Airmap 2000c (Rick) 7. 09:10 AM - bnc 90 fittings in the tray () 8. 11:40 AM - Re: push-to-test (Kenneth Melvin) 9. 12:49 PM - Re: bnc 90 fittings in the tray (N1deltawhiskey@aol.com) 10. 01:04 PM - Re: bnc 90 fittings in the tray (Jim Bean) 11. 01:10 PM - Re: Z13 (Robert L. Nuckolls, III) 12. 02:55 PM - Radio/Intercom interference with engine issue (N223RV@aol.com) 13. 03:10 PM - Re: Garmin 196 vs Airmap 2000c (David Burton) 14. 05:49 PM - WTB: Garming GPSMAP 195 (Land Shorter) 15. 09:22 PM - Re: WTB: Garming GPSMAP 195 (David Burton) ________________________________ Message 1 _____________________________________ Time: 04:47:55 AM PST US From: "Fox5flyer" Subject: Re: AeroElectric-List: Garmin 196 vs 295 --> AeroElectric-List message posted by: "Fox5flyer" Thanks Tom. Appreciate the feedback. Darrel ----- Original Message ----- From: "Tom Tholen" Subject: RE: AeroElectric-List: Garmin 196 vs 295 > --> AeroElectric-List message posted by: "Tom Tholen" > > Hi Darrell, > I have been using a 196 for about 2 years now and love it. I had a > GarminIII before that and it was also a very good GPS. The color would be > nice but for the extra cost I dont feel its worth it. Plus it eats batteries > faster, so whichever u get make sure u have a cigarette lighter plug or > direct wire it, or buy stock in Duracell! The 196 is easy to use but there > is a learning curve. Mainly learning which menu and tab gets u where u wanna > go. As Brian has said its not as easy or quick to change as DME is, but it > can to some really awesome things. If you would like to make some > comparasions you can go to Avshop and they have and they have an independent > GPS review at http://www.avshop.com/gpsroundup.html . Hope this helps in > the decision but i wouldnt give up my 196 except for a 296 and then the > price has to come WAY down! > > > Tom > Future builder > > ________________________________ Message 2 _____________________________________ Time: 05:36:53 AM PST US From: Kenneth Melvin Subject: RE: AeroElectric-List: push-to-test --> AeroElectric-List message posted by: Kenneth Melvin My setup was, in fact, exactly as you describe, with the center contact to ground. Push-to-test promptly blew the fuse. I cannot be sure whether that has been the problem, or whether the strand of wire seen after removal and possibly created in the removal process shorted out the other terminal. No circuit diagram came with the lamp, which has all the appearances of a military-style push-to-test. Googling for answers produced a zero. This commentary has been most useful, in that I now recognize that the terminals are numbered, and that there is logic to the correct wiring process. Thankyou! Kenneth -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert McCallum Subject: Re: AeroElectric-List: push-to-test --> AeroElectric-List message posted by: Robert McCallum --> With all due respect Bob this isn't necessarily true, depending upon which specific lamp holder is employed here. The three connections to a simple push to test lamp socket are: 1; to the "shell" of the lamp socket. 2; to the "centre contact" of the lamp socket. 3; to the "push-to-test" switch which becomes connected to the centre contact when pressed. i.e. in the test state. Now if you were to wire this particular type of lamp holder with the "ground" wire on the centre pin, the "signal" wire ( made live via the circuit you wish to have notification of) to the lamp shell and your "push to test" pin powered from the buss via a fuse, then when you "press to test" you will be directly connecting the live buss to the grounded centre pin of the socket resulting in a dead short. This will blow the fuse as Kenneth described but the light itself will work properly if the "test" feature is not pressed. If the socket is wired correctly with the ground wire on the shell, then the light will also work correctly but the press to test will now apply buss power via the fuse to the lamp, testing its function, though the signal wire may not otherwise be powered. If the lamp holder is more sophisticated with a double throw feature to the push to test then the short will not happen, but the simplest of push to test sockets simply attach the "test" wire to the "signal" pin via a SPST switch which can result in the symptoms Kenneth experienced. In the more sophisticated lamp holders which feature SPDT switching then of course your statement is correct and he could not blow the fuse this way. Bob McC Robert L. Nuckolls, III wrote: >--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" >--> > >At 02:09 PM 12/26/2004 -0500, you wrote: > > > >>--> AeroElectric-List message posted by: Robert McCallum >> >> >>Sounds like you might have the "signal" and "common" connections >>reversed. This would cause the push to test feature to be seen as a >>short by your fuse but would allow the lamp itself to function properly. >> >>Bob McC >> >>Kenneth Melvin wrote: >> >> >> >>>--> AeroElectric-List message posted by: Kenneth Melvin >>> >>> >> >> >> >>>Thank you so much for your help, Robert. The lamp in question is from >>>Aircraft Spruce, and is to indicate when the hydraulic pump is >>>running-- connected to the switched side of the pump contactor. When >>>I connected the third wire to a power distribution bus, it blew the >>>5A fuse. So either the push-to-test actually grounds the lamp, which >>>doesn't sound correct for the intended purpose or circumstances, or I >>>have the three wires improperly labelled as to origin on the lamp. Will remove and check. >>>Thanks again, >>>Kenneth >>> >>> > > I can't deduce how mis-wiring this fixture would cause > a fuse-popping fault. > > About the most that can happen is that the lamp either > fails to illuminate or illuminates continuously while > not depressed while properly indicating the monitored > function while held in the "test" position. There are > no two terminals of this fixture that form a low resistance > pathway in either a depressed or relaxed position of > the press-to-test switch. > > Bob . . . > > > > advertising on the Matronics Forums. ________________________________ Message 3 _____________________________________ Time: 06:06:57 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Re: E-mail Contact Request D02020A0409@comcast.net> --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 11:33 PM 12/26/2004 +0000, you wrote: >Hello Bob: > >I am using your fuse block system as per the "AeroElectric Connection". I >will be using a split switch Bat/Alt master switch (Cessna), and I am >confused about how to wire the 5A Alt Field circuit breaker into the main >fuse block. Referencing figures Z-11 and Z-13 it shows a fusible link >between the main fuse block post and the breaker, and in figure Z-12 it >shows the breaker connected directly to the bus. If you're using fuseblocks, then you can't tie a breaker to the bus 'cause there's no "bus" suited for directly feeding a breaker. Use the fusible link technique to extend the bus to the breaker on the panel. > >Can I connect the breaker to one of the fast-on tabs on the fuse block >then the other end of the breaker to the switch, or is the fusible link >the proper method. The breaker will not open before a fuse . . . you need to have a much longer time constant in the protection for the short lead that comes off the bus to the breaker . . . hence the fusible links. > >Thanks for helping a wiring newbie. Your book has been extremely useful, >but some of this stuff still draws a blank with me. > >Regards, No problem. I will invite you to join us on the AeroElectric List to continue this and similar discussions. It's useful to share the information with as many folks as possible. A further benefit can be realized with membership on the list. There are lots of technically capable folks on the list who can offer suggestions too. You can join at . . . http://www.matronics.com/subscribe/ Thanks! Bob . . . -------------------------------------------- ( Knowing about a thing is different than ) ( understanding it. One can know a lot ) ( and still understand nothing. ) ( C.F. Kettering ) -------------------------------------------- ________________________________ Message 4 _____________________________________ Time: 08:16:57 AM PST US From: "Franck ILMAIN" Subject: Re: AeroElectric-List: Re: KN65A DME --> AeroElectric-List message posted by: "Franck ILMAIN" All good stuff on what we needs to be on the panel. Back to the original question: I happen to have both a GPS and the DME. (DME was there before the GPS install) KI 267 indicates: Distance / Speed / Radial. Having a GPS, the 2 most useful would be Distance and Radial. I get the Ground Speed read from the GPS unit. And my Radial read is not working hence my e mail request on the wiring of the KI 267 Happy Holidays ! >From: Brian Lloyd >Reply-To: aeroelectric-list@matronics.com >To: aeroelectric-list@matronics.com >Subject: Re: AeroElectric-List: Re: KN65A DME Date: Sun, 26 Dec 2004 >20:48:16 -0600 > >--> AeroElectric-List message posted by: Brian Lloyd > > >On Dec 26, 2004, at 7:25 PM, brucem@att.net wrote: > > > --> AeroElectric-List message posted by: brucem@att.net > > > > Comparison between VOR/DME and GPS based navigation can be apples vs. > > oranges. The former is a simple distance/bearing system while the GPS > > provides that and a whole lot more. > >There are also DME/DME navigators that compute position from the >distance from two DMEs but other than the Narco Star*Nav I have never >seen one for light GA aircraft. > > > If the GPS box is used only for the same point-to-point routing, is it > > any more complicated entering a waypoint and hitting direct to than > > putting a new frequency into the nav receiver and twisting the OBS? > >Perhaps and perhaps not. It is certainly interesting when you plug in >SJC VOR expecting to get the one near San Jose, California, and instead >get the one in Costa Rica or wherever. Getting the correct navaid when >there is more than one with the same identifier can make it a tad bit >more difficult. It means you do need to pay attention when entering >data into your GPS receiver to ensure that what it is telling you is >what you really want to know. > > > In some airplanes that I have flown the DME was tuned separately, > > introducing additional steps. Then too there was the mental math that > > went with slant range considerations at higher altitudes. > >Yes, that does happen. Still, the user interface is unambiguous. Most >people who have learned to use a VOR or VOR/DME in one airplane can get >into another with equipment from a different manufacturer and make it >work immediately. Not necessarily true with GPS receivers. > > > Complaints that amended clearances cause much knob twisting when using > > a GPS reflects its capability to fly preloaded flight plans and > > automatically sequence, something NA in the VOR world (unless you have > > a $100K FMS on board). > >Right. And you have to consider how hard it is to mentally sequence >your VORs vs. how hard it is to reprogram the route in your GPS. > > > As practical matter we will have both kinds in our airplanes. Despite > > the WAAS capable GPS's legality as the primary navigation device, FAR > > 91.205(d)(2) still requires: "....navigation equipment appropriate to > > the ground facilities to be used." So a VOR receiver or ADF has to > > back up your Garmin 480. > >And my point was not to say that VOR/DME is better than GPS. My point >was to have people consider how GPS has its own set of idiosyncrasies >and that VOR/DME has its own set of advantages. Advances in technology >are not always the panacea the marketing departments would have us >think they are. > >Brian Lloyd 6501 Red Hook Plaza >brianl@lloyd.com Suite 201 >+1.340.998.9447 St. Thomas, VI 00802 > >I fly because it releases my mind from the tyranny of petty things . . . > Antoine de Saint-Exupry > > ________________________________ Message 5 _____________________________________ Time: 08:16:57 AM PST US From: Brian Lloyd Subject: Re: AeroElectric-List: Garmin 196 vs 295 --> AeroElectric-List message posted by: Brian Lloyd On Dec 26, 2004, at 9:36 PM, Dj Merrill wrote: > --> AeroElectric-List message posted by: Dj Merrill > > > Larry Bowen wrote: >> --> AeroElectric-List message posted by: "Larry Bowen" >> >> >> I've had both. I like the 196 better. Faster screen. More value. >> I don't >> miss the color. > > After using the color, I can't imagine going > back to B&W! *grin* The monochrome displays work better in bright sunlight and tend to have better contrast. This means they are easier to read. I tend to prefer monochrome where the color is not used to carry more information. YMMV. > I guess it is just personal preference. Yup. Brian Lloyd 6501 Red Hook Plaza brianl@lloyd.com Suite 201 +1.340.998.9447 St. Thomas, VI 00802 There is a time to laud one's country and a time to protest. A good citizen is prepared to do either as the need arises. ________________________________ Message 6 _____________________________________ Time: 08:24:34 AM PST US From: Rick Subject: AeroElectric-List: Garmin 196 vs Airmap 2000c --> AeroElectric-List message posted by: Rick I'm about ready to put my Garmin 196 on Ebay and go with the Lowrance Airmap 2000c. Anyone have experience with the 2000c yet? Thoughts?? DO NOT ARCHIVE Rick Orlando, FL http://www.geocities.com/n701rr/index.html --------------------------------- Jazz up your holiday email with celebrity designs. Learn more. ________________________________ Message 7 _____________________________________ Time: 09:10:39 AM PST US From: Subject: AeroElectric-List: bnc 90 fittings in the tray --> AeroElectric-List message posted by: > Time: 08:27:19 AM PST US > Subject: AeroElectric-List: bnc 90 fittings in the tray > From: "Stewart, Michael (ISS Atlanta)" > > --> AeroElectric-List message posted by: "Stewart, Michael (ISS Atlanta)" > > > My trays for my 430/330/ etc all come with a straight BNC mounted to the > tray. It floats a bit so the unit sliding in can mate up nicely. > Coming out the back of the tray I am out of room. I tried putting on a > 90 degree adapter but there is no room for the adapter. If the fitting > coming out of the tray was 90 degrees instead of straight, Id be in > business. Does Garmin make these? They are like a bulkhead fitting in > that they have a retaining nut and a special sleeve that hold it in the > tray. No doubt if they do, Im gonna have to hock the house to buy it. I > need 5 of em. Help! Thanks Mike 12/27/2004 Hello Mike, This may help. The tray for my SL-30 (back when it was still built by UPS) came with two 90 degree BNC slide-into connections on it. I wanted straight ones (the opposite of your desires) and did some research. I discovered that my 90 degree BNC connections were from Delta ARF with a part number of 4205018N995. If you go to this URL and look at the lower left hand corner of the picture you will see that part. http://www.deltarf.com/specs.asp This part (or some other type from Delta) may solve your problem. Note how it is fastened to the back of the tray (with holes through flanges) and the fact that the coax cable gets routed directly into the fitting at a 90 degree angle. Delta can be reached at 978-927-1060 or sales@deltaarf.com Good luck. OC PS: I never did get compatible straight fittings. ________________________________ Message 8 _____________________________________ Time: 11:40:23 AM PST US From: Kenneth Melvin Subject: RE: AeroElectric-List: push-to-test --> AeroElectric-List message posted by: Kenneth Melvin The lamp has been rewired and reinstalled with the center terminal to ground, and the other two terminals to switched 12v+ (pump) and pre-switched 12v+ (push-to-test)respectively. Works as predicted. Thank you, Kenneth -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Kenneth Melvin Subject: RE: AeroElectric-List: push-to-test --> AeroElectric-List message posted by: Kenneth Melvin --> Most helpful, as ever. Thank you Bob. Ken melvin -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L. Nuckolls, III Subject: Re: AeroElectric-List: push-to-test --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" --> At 07:03 PM 12/23/2004 -0800, you wrote: >--> AeroElectric-List message posted by: Kenneth Melvin > > >How does one wire the three terminals on a push-to-test lamp? > >Kenneth Melvin The term "press-to-test" lamp can cover many different brands and styles but I'll assume you're asking about the dimmable MS25041 series like these: http://www.aircraftspruce.com/catalog/elpages/presstotest.php If so, then there is an exemplar wiring diagram on page 3 of this document: http://aeroelectric.com/articles/grndpwr.pdf If you're talking about some other device, I'd have to know more about it to offer any advice. Bob . . . -- No virus found in this outgoing message. Checked by AVG Anti-Virus. advertising on the Matronics Forums. ________________________________ Message 9 _____________________________________ Time: 12:49:40 PM PST US From: N1deltawhiskey@aol.com Subject: Re: AeroElectric-List: bnc 90 fittings in the tray --> AeroElectric-List message posted by: N1deltawhiskey@aol.com Mike, Can't answer for Garmin, but my SL-70 (UPS) transponder tray sports what I think you are looking for. Extension from be back face of the tray is 0.6 in. The GPS/Comm tray sports a different type, attached with nuts onto embedded screws -- would be hard to implement and requires 0.7+ clearance. Doug Windhorn In a message dated 12/26/2004 8:27:50 AM Pacific Standard Time, mstewart@iss.net writes: > My trays for my 430/330/ etc all come with a straight BNC mounted to the > tray. It floats a bit so the unit sliding in can mate up nicely. > Coming out the back of the tray I am out of room. I tried putting on a > 90 degree adapter but there is no room for the adapter. If the fitting > coming out of the tray was 90 degrees instead of straight, Id be in > business. Does Garmin make these? They are like a bulkhead fitting in > that they have a retaining nut and a special sleeve that hold it in the > tray. ________________________________ Message 10 ____________________________________ Time: 01:04:43 PM PST US From: Jim Bean Subject: Re: AeroElectric-List: bnc 90 fittings in the tray --> AeroElectric-List message posted by: Jim Bean You probably want 90 degree BNC connectors on the cable. These are a little pricy but not too bad. I had room for the 90 degree adaptors but found that they radiated energy into the other instruments. Replacing the adaptors and single shielded cable with crimped-on 90 degree connectors on double shielded cable solved both the radiation and space problems for me. The 90 degree connector is a little shorter than the adaptor. It's worth looking into. I don't think that there is a 90 degree fitting that will go in the tray. I have an access door behind the 430 just for putting the coax cables on. I don't know how I could have put them on otherwise. Maybe you need one too. Jim Bean RV-8 almost done. ________________________________ Message 11 ____________________________________ Time: 01:10:39 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Z13 --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 09:39 AM 12/27/2004 +0200, you wrote: >--> AeroElectric-List message posted by: "rduplooy" > >Hi, >Is there a PDF version of Z13...? >I opened with IE...got the schematic but cannot read the print?..( Very >"blocky" writing) >Thanks >Robert >RV-8 Z-13 is one page of 22 in http://aeroelectric.com/articles/Rev10/z10.pdf Download this document and store it to your hard drive. Then use Acrobat to open and read/print whatever you need. Bob . . . ________________________________ Message 12 ____________________________________ Time: 02:55:53 PM PST US From: N223RV@aol.com Subject: AeroElectric-List: Radio/Intercom interference with engine issue rv-list@matronics.com, aeroelectric-list@matronics.com --> AeroElectric-List message posted by: N223RV@aol.com I have an interesting issue. I am flying my friends RV-7, this is the second flight. I had the throttle basically full (breaking in the engine) and the radio progressively seemed to get worse (over a 515 minute period) with static when receiving transmissions from ATC. It got so bad, I could barely hear him. He said he had no issues hearing me. I told him I was going to come in for a full stop, pulled back the throttle, and could hear fine once again. So I called the controller and told him I was going to go around again and once I gave it over about 75% power, the radio once again had a bunch of static (only when receiving transmissions). The plane has a PS Engineering PM1000 intercom, Garmin 430 radio, and a Headsets Inc ANR in a Dave Clark 13.4 headset. It also has a Lightspeed electronic ignition on the right mag. I did a mag check in the air and it did not seem to make a difference. I pulled and reseated the headset plugs and that did not fix the issue. Does anyone have any ideas what to check? We had no issues on the first flight. Thanks in advance! -Mike Kraus N223RV RV-4 Flying N213RV RV-10 Tailcone Complete, working on wings ________________________________ Message 13 ____________________________________ Time: 03:10:42 PM PST US From: "David Burton" Subject: Re: AeroElectric-List: Garmin 196 vs Airmap 2000c --> AeroElectric-List message posted by: "David Burton" Hi Rick, You might also take a look at the AvMap IV. I spent some time with a pre-production model last summer and really liked it. The software upgrades are somewhat expensive and I have some concern about how long the company might be around (based only on the fact that they are a fairly small company, selling into a fairly small market. They do have other none aviation products which does give them another market to sell into). This used to be the Magellan 10X two builds ago which was fairly worthless. This new unit is in no way the same, except in appearance. It's large and meant to be a kneepad unit, although I have a friend who did mount it on his yoke. I love my 195, but want color and a larger display at some point... Dave RV6 ________________________________ Message 14 ____________________________________ Time: 05:49:44 PM PST US From: Land Shorter Subject: AeroElectric-List: WTB: Garming GPSMAP 195 --> AeroElectric-List message posted by: Land Shorter Was Santa good to any listers that might have received a new Garmin 196 GPS in their stocking and would be willing to sell their old 195??? I'm looking for one that's been gently used and needs a nice home. Joa www.landshorter.com --------------------------------- ________________________________ Message 15 ____________________________________ Time: 09:22:30 PM PST US From: "David Burton" Subject: Re: AeroElectric-List: WTB: Garming GPSMAP 195 --> AeroElectric-List message posted by: "David Burton" There is a brand new Garmin 195 on ebay currently at $150. They typically sell for around $300. You might watch there for one.