---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 06/23/03: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:21 AM - Wiring Microair Transponder to aeroKing ACK 30 Encoder (Ian Scott) 2. 12:47 AM - Re: Wiring Microair Transponder to aeroKing ACK 30 Encoder (Ian Scott) 3. 06:26 AM - Re: Re: Wiring Microair Transponder to (Robert L. Nuckolls, III) 4. 07:24 AM - Terra 760 D (Ed Anderson) 5. 08:07 AM - Re: Terra 760 D (David J. Spencer) 6. 01:07 PM - Wiring a Velocity - Strobe/Ammeter questions (Brett Ferrell) 7. 02:03 PM - sockets for H4351 & H4352 bulbs (KahnSG@aol.com) 8. 03:29 PM - LEDs (Fergus Kyle) 9. 03:38 PM - LightSpeed wiring (Dan Checkoway) 10. 04:32 PM - Re: LightSpeed wiring (Matt Prather) 11. 05:47 PM - Re: Terra 760 D (Ed Anderson) 12. 07:20 PM - RG-142 and RG-400 (BAKEROCB@aol.com) ________________________________ Message 1 _____________________________________ Time: 12:21:29 AM PST US From: "Ian Scott" Subject: AeroElectric-List: Wiring Microair Transponder to aeroKing ACK 30 Encoder --> AeroElectric-List message posted by: "Ian Scott" Hi bob and all. I was wondering if you had a good diagram for connection the two. Also is it against the convention to use a rewired pparallelcable and just change the termination plug Thanks in advance Ian Scott J400 taxied last week. ________________________________ Message 2 _____________________________________ Time: 12:47:54 AM PST US From: "Ian Scott" Subject: AeroElectric-List: RE: Wiring Microair Transponder to aeroKing ACK 30 Encoder --> AeroElectric-List message posted by: "Ian Scott" Sorry it is a AK350 And a Microair 2000 transponder -----Original Message----- From: Ian Scott [mailto:jabiru22@yahoo.com.au] Subject: Wiring Microair Transponder to aeroKing ACK 30 Encoder Hi bob and all. I was wondering if you had a good diagram for connection the two. Also is it against the convention to use a rewired pparallelcable and just change the termination plug Thanks in advance Ian Scott J400 taxied last week. ________________________________ Message 3 _____________________________________ Time: 06:26:39 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: RE: Wiring Microair Transponder to aeroKing ACK 30 Encoder --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 05:47 PM 6/23/2003 +1000, you wrote: >--> AeroElectric-List message posted by: "Ian Scott" > > >Sorry it is a AK350 > >And a Microair 2000 transponder >-----Original Message----- >From: Ian Scott [mailto:jabiru22@yahoo.com.au] >To: 'aeroelectric-list@matronics.com' >Subject: Wiring Microair Transponder to aeroKing ACK 30 Encoder Sure goto http://www.aeroelectric.com/Installation_Data and click on T2000-ACK350_Wiring.pdf >Hi bob and all. > >I was wondering if you had a good diagram for connection the two. > >Also is it against the convention to use a rewired pparallelcable and >just change the termination plug ?? if you're asking about using the cable assembly that comes in the ACK-350 box, I use that cable assembly when the customer orders the T2000 bundled with the T2000 and wants me to build the harness. There will be a connector on one end only and it will fit the ACK-350. The colors shown on the wiring diagram match the last harnesses I got with an ACK-350 If you have another harness already built for the ACK-350 with a plug that mates with another transponder, I don't see anything wrong with using cutting the transponder plug off and reusing the harness. Bob . . . ________________________________ Message 4 _____________________________________ Time: 07:24:07 AM PST US From: "Ed Anderson" Subject: AeroElectric-List: Terra 760 D --> AeroElectric-List message posted by: "Ed Anderson" Hi Bob, Don't know if you or anyone on the list may be able to help me with my problem or not. I have a Terra 760D transceiver. I have always had a problem with distortion when transmitting. Sometimes so bad folks receiving can not understand me. At first, I though it might be the high noise level in the cockpit, so got a better noise supression mic and also uphosteried the interior to reduce ambient noise. Nothing seemed to solve the problem. There is no static/distortion when receiving and my side tone does not have any distortion. I have had the transceiver in three times to have it checked, but you know how an intermittent problem is - never show up in the repair shop. Antenna and Coax has been changed as well. I finally obtained a maintenance manual and noticed that the sidetone is generated one transistor before the modulation transistor. This leads me to assume that the audio portion of the circuit is good (at least up to the side tone generator) and I wonder if an intermittent condition with the modulation transistor could cause distortion. It does seem worst during hot weather. If anyone has had a similar problem and discovered the cause, would appreciate hearing from them. Best Regards Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com ________________________________ Message 5 _____________________________________ Time: 08:07:13 AM PST US From: "David J. Spencer" Subject: Re: AeroElectric-List: Terra 760 D --> AeroElectric-List message posted by: "David J. Spencer" Ed... Sorry, but I don't have any advice about the technical difficulties. However, I have dual TXN-960s and am wondering how you got a maintenance manual? I'd love to have one for my 960s... have the install manual. David J. Spencer Super3 djs@54Transmission.com ----- Original Message ----- From: "Ed Anderson" Subject: AeroElectric-List: Terra 760 D > --> AeroElectric-List message posted by: "Ed Anderson" > > Hi Bob, > > Don't know if you or anyone on the list may be able to help me with my > problem or not. I have a Terra 760D transceiver. I have always had a > problem with distortion when transmitting. Sometimes so bad folks receiving > can not understand me. At first, I though it might be the high noise level > in the cockpit, so got a better noise supression mic and also uphosteried > the interior to reduce ambient noise. Nothing seemed to solve the problem. > There is no static/distortion when receiving and my side tone does not have > any distortion. I have had the transceiver in three times to have it > checked, but you know how an intermittent problem is - never show up in the > repair shop. Antenna and Coax has been changed as well. > > I finally obtained a maintenance manual and noticed that the sidetone is > generated one transistor before the modulation transistor. This leads me to > assume that the audio portion of the circuit is good (at least up to the > side tone generator) and I wonder if an intermittent condition with the > modulation transistor could cause distortion. It does seem worst during hot > weather. If anyone has had a similar problem and discovered the cause, would > appreciate hearing from them. > > Best Regards > > Ed Anderson > RV-6A N494BW Rotary Powered > Matthews, NC > eanderson@carolina.rr.com > > ________________________________ Message 6 _____________________________________ Time: 01:07:30 PM PST US From: Brett Ferrell Subject: AeroElectric-List: Wiring a Velocity - Strobe/Ammeter questions --> AeroElectric-List message posted by: Brett Ferrell Bob/Others - Just finished reading the 'Connection (many thanks) in preparation for designing/wiring my Velocity XL (www.velocityxl.com) and had a couple of quick (OK, mayber they're not quick, but straightforward at least) questions. First - I bleieve you recommend attaching both ends of the Whelen strobe shielding on composites. What's the best way to attach the AL foil, solder wire to it? I've installed a Molex connector for service at the strake-wing junction, what kind of connector would you recommend there, another Molex? And finally, would it be sufficient to put a ring terminal under the mounting screw for the ground connection at the light fixture, or should I solder the sheild to the housing, or what? Second - I'm planning on going all-electric, probably with the Blue Mountain EFIS and a 20 vac-pad-mounted backup essential load alternator, and was wondering about placement of the shunt. The Z figure for canards shows it in the battery ground line to the canard bulkhead, which is were I would like to put it and measure the current to or from the battery regardless of configuration. The dual-alt figure shows one shunt for each alternator to measure their individual currents, with which I'm not postive how I'd tell if the battery were discarging, and I don't think is relevent if I only use the second alternator in the event of primary failure. Which setup would you prefer (and why) with my setup? Thanks. Brett ________________________________ Message 7 _____________________________________ Time: 02:03:15 PM PST US From: KahnSG@aol.com Subject: AeroElectric-List: sockets for H4351 & H4352 bulbs --> AeroElectric-List message posted by: KahnSG@aol.com The socket for a H4351 bulb is the same as for a H9006 capsule. The part no. is S-523 in Standard and 85812 in Help/Motormite. The socket for a H4352 bulb is the same as for a H9005 capsule. The part no. is 85813 in Help/Motormite. Standard does not lidt one yet. Steve Springfield Auto Parts Co., Inc. ________________________________ Message 8 _____________________________________ Time: 03:29:12 PM PST US From: "Fergus Kyle" Subject: AeroElectric-List: LEDs --> AeroElectric-List message posted by: "Fergus Kyle" > > ----- Original Message ----- > From: "Fred Fillinger" > To: > Sent: Sunday, June 22, 2003 10:09 PM > Subject: Re: Europa-List: LEDs > > > Fred, Quite agree and thanks for filling in some more details. I was trying not to get too complex first off on the grounds that it was just an alerting message for those not inclined to research. The main thrust was to bring attention to the great saving in cost, labour, reliability and electric power etc. I bought before the superbrights arrived so will 'pulse' but at a discrete freq. - probably as per Weir's article. I have opted for yellow light and diffuse heads so hope it will suffice. Ferg ________________________________ Message 9 _____________________________________ Time: 03:38:43 PM PST US From: "Dan Checkoway" Subject: AeroElectric-List: LightSpeed wiring --> AeroElectric-List message posted by: "Dan Checkoway" Bob & folks, I'm installing a single LightSpeed Plasma II ignition in my RV-7 (single EI, single mag), and I'm considering straying slightly from the wiring installation notes provided with the LSE system. They recommend wiring directly to and from the battery and using a pullable breaker. Basically, positive battery terminal direct to a pullable 5A breaker, then an optional on/off toggle switch, then the brain, then wire directly to the negative battery terminal. They recommend bypassing busses in this manner. Here's what I would *like* to do instead: - power wired from a 5A fuse on the always-hot battery bus, which is roughly 6" away (plus an inch or three) from the battery (+) terminal - no pullable circuit breaker, let the 5A fuse do its job - standard 1-3 ON/OFF toggle switch - ground wired directly to the 48/24 firewall ground block, which is connected to the battery via 5" of 2 AWG Do you see any potential gotchas in straying from LSE's recommendations in this way? I don't really see the purpose of using a pullable breaker when you use the optional on/off toggle switch and figure a fuse will do fine. I have control in normal cases, and the wires are protected. I guess I could always use a 5A breaker switch, but again I don't really see the point when a fuse will do the same job cheaper, lighter, etc. As far as the ground goes, is there any possibility of noise affecting the LightSpeed when ground is shared with every device in the plane, even when it's grounded so deliberately close to the battery (but not *quite* to the negative terminal)? Thanks, )_( Dan RV-7 N714D http://www.rvproject.com ________________________________ Message 10 ____________________________________ Time: 04:32:45 PM PST US Subject: Re: AeroElectric-List: LightSpeed wiring From: "Matt Prather" --> AeroElectric-List message posted by: "Matt Prather" Hey Dan, Sounds like you have a good setup in mind. I believe that LSE's design is motivated by airplanes already having a long row of circuit breakers across the panel. I think having a fuse at the battery bus, and a simple switch is entirely appropriate - esp since it sounds like you don't have any other breakers in the plane (barring one for your alternator). I don't believe electronic ignition devices are susceptible to nuisance trips, so that isn't a consideration. I don't think you will have any problems with the grounding scheme that you have described. I believe many airplanes don't have a single point ground, much less one connected to the negative side of the battery with fat cable. If installing an LSE box on an airplane without these design features, running the ground lead from the unit to the negative battery terminal would be a good way to go. Regards, Matt- > --> AeroElectric-List message posted by: "Dan Checkoway" > > > Bob & folks, > > I'm installing a single LightSpeed Plasma II ignition in my RV-7 (single > EI, single mag), and I'm considering straying slightly from the wiring > installation notes provided with the LSE system. > > They recommend wiring directly to and from the battery and using a > pullable breaker. Basically, positive battery terminal direct to a > pullable 5A breaker, then an optional on/off toggle switch, then the > brain, then wire directly to the negative battery terminal. They > recommend bypassing busses in this manner. > > Here's what I would *like* to do instead: > > - power wired from a 5A fuse on the always-hot battery bus, which is > roughly 6" away (plus an inch or three) from the battery (+) terminal > - no pullable circuit breaker, let the 5A fuse do its job > - standard 1-3 ON/OFF toggle switch > - ground wired directly to the 48/24 firewall ground block, which is > connected to the battery via 5" of 2 AWG > > Do you see any potential gotchas in straying from LSE's recommendations > in this way? I don't really see the purpose of using a pullable breaker > when you use the optional on/off toggle switch and figure a fuse will do > fine. I have control in normal cases, and the wires are protected. I > guess I could always use a 5A breaker switch, but again I don't really > see the point when a fuse will do the same job cheaper, lighter, etc. > > As far as the ground goes, is there any possibility of noise affecting > the LightSpeed when ground is shared with every device in the plane, > even when it's grounded so deliberately close to the battery (but not > *quite* to the negative terminal)? > > Thanks, > )_( Dan > RV-7 N714D > http://www.rvproject.com > ________________________________ Message 11 ____________________________________ Time: 05:47:48 PM PST US From: "Ed Anderson" Subject: Re: AeroElectric-List: Terra 760 D --> AeroElectric-List message posted by: "Ed Anderson" ----- Original Message ----- From: "David J. Spencer" Subject: Re: AeroElectric-List: Terra 760 D > --> AeroElectric-List message posted by: "David J. Spencer" > > Ed... > > Sorry, but I don't have any advice about the technical difficulties. > > However, I have dual TXN-960s and am wondering how you got a maintenance > manual? I'd love to have one for my 960s... have the install manual. > > David J. Spencer > Super3 > djs@54Transmission.com David, I just went back and checked and the website that has some of the Terra Maintenance manual apparently they only have the more recent "digital" systems. I am sorry to say, your receiver is not listed. Ed Anderson eanderson@carolina.rr.com ________________________________ Message 12 ____________________________________ Time: 07:20:05 PM PST US From: BAKEROCB@aol.com Subject: AeroElectric-List: RG-142 and RG-400 --> AeroElectric-List message posted by: BAKEROCB@aol.com Previously From: "Wayne Sweet" Subject: Coaxial cables <> 6/23/2003 Hello Wayne, If you are interested in learning a bit more about these two high performance coaxial cables you can go to the web site below. <> and look at the MIL-C-17 coaxial cable. There may be other companies besides Thermax/CDT that makes these two cables (Belden lists only RG -142 in their catalog), but Thermax's are the only ones that I have seen. The difference between the two is that RG-400 has the multi stranded core and the RG-142 has the solid core. (Belden says their core is silver coated, copper covered steel !!) There are people who feel that the multi stranded core is a must for aircraft use because it will withstand vibration better. I am more inclined to use the RG-142 and ensure that the cable is properly supported, particularly where it enters the back of the avionics rack. The multi stranded is a bit more flexible than the solid core, but the solid core is extremely easy to strip (don't nick it) and a delight to insert into the connector pin or socket and crimp. 'OC' Baker, Builder of KIS TR-1 #116 4/14/97 - ?/?/? PS: The Belden web site has a lot of general cable information of interest.