---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 03/02/21: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:10 AM - Re: Re: 12v battery monitor with WiFi alerts? (Ernest Christley) 2. 11:26 AM - Re: Re: 12v battery monitor with WiFi alerts? (argoldman@aol.com) 3. 03:53 PM - URGENT REQUEST Transponder Test Failed...Troubleshooting Suggestions Please () 4. 04:17 PM - Re: URGENT REQUEST Transponder Test Failed...Troubleshooting Suggestions Please (Kelly McMullen) 5. 04:27 PM - Re: URGENT REQUEST Transponder Test Failed...Troubleshooting Suggestions Please (Sebastien) 6. 07:57 PM - Multiple switches to the same light? (Dan) ________________________________ Message 1 _____________________________________ Time: 06:10:38 AM PST US From: Ernest Christley Subject: Re: AeroElectric-List: Re: 12v battery monitor with WiFi alerts? You could switch to a LiFePo battery the next time it needs changing.=C2 - They have a very low self discharge rate, and they will accept a much l arger recharge current.=C2- So, it could sit six months and start the car without an issue, and then recharge in only a few minutes. On Monday, March 1, 2021, 10:50:22 PM EST, user9253 wrote: If the car starts, I wouldn't worry about it.=C2- But if there is a probl em, how about a Battery Maintainer extension cord like this one: https://tinyurl.com/Maintainer-Extension-Cord Dangle the plug end out in front of the radiator and close the hood.=C2- Tie the charger cord to something so that it can not be dragged away.=C2- Plug th e charger into the extension cord.=C2- If your wife forgets to unplug it an d drives away, the cords will unplug with no harm done. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=500832#500832 - S - WIKI - - =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin. ________________________________ Message 2 _____________________________________ Time: 11:26:18 AM PST US From: argoldman@aol.com Subject: Re: AeroElectric-List: Re: 12v battery monitor with WiFi alerts? The LiFEPO batteries have great advantages and I have been on the advocate side almost since they came out. There are some caveats, however with which you should be familiar. True the shelf discharge is almost nil, however ta ke the earth-x for example, there is circuitry which charges and balances t he cells., which is great. However each model of the battery has a certain maximum charging amperage which you can use. Important to know. the dischar ge graph is different in that it will maintain close to its specified volta ge until significantly discharged then drops off precipitously.=C2- there are other things to look for. the other thing is the price. Rich=C2-=C2- -----Original Message----- From: Ernest Christley Sent: Tue, Mar 2, 2021 8:09 am Subject: Re: AeroElectric-List: Re: 12v battery monitor with WiFi alerts? You could switch to a LiFePo battery the next time it needs changing.=C2 - They have a very low self discharge rate, and they will accept a much l arger recharge current.=C2- So, it could sit six months and start the car without an issue, and then recharge in only a few minutes. On Monday, March 1, 2021, 10:50:22 PM EST, user9253 wrote: If the car starts, I wouldn't worry about it.=C2- But if there is a probl em, how about a Battery Maintainer extension cord like this one: https://tinyurl.com/Maintainer-Extension-Cord Dangle the plug end out in front of the radiator and close the hood.=C2- Tie the charger cord to something so that it can not be dragged away.=C2- Plug th e charger into the extension cord.=C2- If your wife forgets to unplug it an d drives away, the cords will unplug with no harm done. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=500832#500832 http://www.matronics.com/Navigator?AeroElectric-List http://forums.matronics.com http://wiki.sp; =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2- =C2 - =C2- &==C2- --> http://www.matronics.com/contribution ________________________________ Message 3 _____________________________________ Time: 03:53:25 PM PST US From: Subject: AeroElectric-List: URGENT REQUEST Transponder Test Failed...Troubleshooting Suggestions Please The static test technician is coming back to the airpark tomorrow so can someone PLEASE help me troubleshoot a failed test transponder? I also posted this same request on the Dynon forum hoping to get a troubleshooting answer tonight. I tried to get a pitot static test today and the system failed the transponder Mode S interrogations received component of the test. He was using the Tol-Instruments T-48 MODE S/ATCRBS TRANSPONDER RAMP TEST SET. He said that the test set was receiving between 65 to 100 percent of the interrogations and the device reports the lowest number as the result and anything less than 90 percent is considered a fail so my system got a 65 percent. After the fail I switched the antenna from the transponder to the ADS-B antenna and the result was the same so it seems that the antenna was not at fault. The technician had me switch it to Mode A and he used a different test kit called a AV-17 AVIONICS TESTER and the mode A and Mode C system worked great with 100 percent replies received however when he uses the T-48 MODE S tester the same problem. The transponder is the Dynon -261 unit. The setup shows the following: ON-LINE HW22.03 FW01.02 SW02.11 USA 91.227 COMPLIANT NO GPS DATA (OFFLINE) GARMIN ADS-B/ADS-B+ PRESSURE ALTITUDE OK SKYVIEW TAIL NUMBER shows my N-Number TRANSPONDER HEX CODE A0088C ADS-B IN FREQ (BOTH SV-ADSB-472) TIS TRAFFIC is ON What troubleshooting steps should I take now? How do I determine if it is a programming issue or cable or the unit??? He is coming back to the airport tomorrow so if it is something that I can reprogram of fix please let me know. THANKS Bill ________________________________ Message 4 _____________________________________ Time: 04:17:13 PM PST US Subject: Re: AeroElectric-List: URGENT REQUEST Transponder Test Failed...Troubleshooting Suggestions Please From: Kelly McMullen The Dynon transponder gets its altitude information from the ADAHRS unit. That means you need the full Dynon system turned on, not just the transponder. Apparently you are getting your GPS information from a certified GPS, which has to connect to the Dynon via ARINC-429 interface box. I've been flying with the -261 transponder for 5 years with no problems. In fact last airborne report there were no errors. I have dual ADAHRS, and GTN-650 providing GPS data. Any chance of a problem with the coax from the -261 to the antenna? Does the antenna have appropriate ground plain? On 3/2/2021 4:52 PM, billhuntersemail@gmail.com wrote: > > The static test technician is coming back to the airpark tomorrow so can > someone PLEASE help me troubleshoot a failed test transponder? I also > posted this same request on the Dynon forum hoping to get a troubleshooting > answer tonight. > > I tried to get a pitot static test today and the system failed the > transponder Mode S interrogations received component of the test. He was > using the Tol-Instruments T-48 MODE S/ATCRBS TRANSPONDER RAMP TEST SET. He > said that the test set was receiving between 65 to 100 percent of the > interrogations and the device reports the lowest number as the result and > anything less than 90 percent is considered a fail so my system got a 65 > percent. > > After the fail I switched the antenna from the transponder to the ADS-B > antenna and the result was the same so it seems that the antenna was not at > fault. > > The technician had me switch it to Mode A and he used a different test kit > called a AV-17 AVIONICS TESTER and the mode A and Mode C system worked great > with 100 percent replies received however when he uses the T-48 MODE S > tester the same problem. > > The transponder is the Dynon -261 unit. > > The setup shows the following: > > ON-LINE HW22.03 FW01.02 SW02.11 > USA 91.227 COMPLIANT NO > GPS DATA (OFFLINE) GARMIN ADS-B/ADS-B+ > PRESSURE ALTITUDE OK SKYVIEW > TAIL NUMBER shows my N-Number > TRANSPONDER HEX CODE A0088C > ADS-B IN FREQ (BOTH SV-ADSB-472) > TIS TRAFFIC is ON > > What troubleshooting steps should I take now? How do I determine if it is a > programming issue or cable or the unit??? > > > He is coming back to the airport tomorrow so if it is something that I can > reprogram of fix please let me know. > > THANKS > > Bill > > > > ________________________________ Message 5 _____________________________________ Time: 04:27:17 PM PST US From: Sebastien Subject: Re: AeroElectric-List: URGENT REQUEST Transponder Test Failed...Troubleshooting Suggestions Please Bill either you are not reporting the problem correctly or your tech isn't familiar with doing these tests on mode S transponders. The 90% figure leads me to believe that the test you are failing is the suppression test. If this is the case, here is the applicable section of *PART 43 Appendix F ATC Transponder Tests and Inspections*: *(b) Suppression: When C* *lasses 1B, 2A, 3A, and 4 Mode S transponders are interrogated at a rate between 230 and 1,200 Mode 3/A interrogations per second:* *(2) Verify that the transponder replies to at least 90 percent of ATCRBS interrogations when the amplitude of the P2 pulse is 9 dB less than the P1 pulse. If the test is conducted with a radiated test signal, the interrogation rate shall be 235 =C2=B15 interrogations per second unless a higher rate has been approved for the test equipment used at that location. * As you can see, the suppression test is a mode A test, not mode C or mode S. If the AV-17 is showing a 100% reply rate with P2 set 9dB less than P1, your transponder passes the suppression test and that's the end of it. A failed suppression test could not have anything to do with your transponder setup. If we want to assume for argument's sake that you are indeed failing the suppression test and your tech is competent with both the requirements and his equipment, then I would try a different antenna, a different coax, and then ship the unit back to Dynon. If you were in a hangar, pull the aircraft outside to prevent reflected signals from buggering up your data. Lastly, when doing these tests make sure that the Dynon setup has the auto ON/OFF mode disabled to ensure that you can turn everything on standing still. Regards, Sebastien On Tue, Mar 2, 2021 at 3:58 PM wrote: > > The static test technician is coming back to the airpark tomorrow so can > someone PLEASE help me troubleshoot a failed test transponder? I also > posted this same request on the Dynon forum hoping to get a troubleshooti ng > answer tonight. > > I tried to get a pitot static test today and the system failed the > transponder Mode S interrogations received component of the test. He was > using the Tol-Instruments T-48 MODE S/ATCRBS TRANSPONDER RAMP TEST SET. H e > said that the test set was receiving between 65 to 100 percent of the > interrogations and the device reports the lowest number as the result and > anything less than 90 percent is considered a fail so my system got a 65 > percent. > > After the fail I switched the antenna from the transponder to the ADS-B > antenna and the result was the same so it seems that the antenna was not at > fault. > > The technician had me switch it to Mode A and he used a different test ki t > called a AV-17 AVIONICS TESTER and the mode A and Mode C system worked > great > with 100 percent replies received however when he uses the T-48 MODE S > tester the same problem. > > The transponder is the Dynon -261 unit. > > The setup shows the following: > > ON-LINE HW22.03 FW01.02 SW02.11 > USA 91.227 COMPLIANT NO > GPS DATA (OFFLINE) GARMIN ADS-B/ADS-B+ > PRESSURE ALTITUDE OK SKYVIEW > TAIL NUMBER shows my N-Number > TRANSPONDER HEX CODE A0088C > ADS-B IN FREQ (BOTH SV-ADSB-472) > TIS TRAFFIC is ON > > What troubleshooting steps should I take now? How do I determine if it i s > a > programming issue or cable or the unit??? > > > He is coming back to the airport tomorrow so if it is something that I ca n > reprogram of fix please let me know. > > THANKS > > Bill > =========== =========== =========== =========== =========== > > ________________________________ Message 6 _____________________________________ Time: 07:57:10 PM PST US From: Dan Subject: AeroElectric-List: Multiple switches to the same light? Is there anything wrong with (i) wiring a Map Light to a switch with that name on the panel so that the light it can simply be turned on and off, AND (ii) wiring it to a dimmer circuit that controls some additional lights so that they can all be dimmed at once? If only the Map Light switch were turned on, the Map Light would just come on. If only the dimmer were turned on, the Map Light would get brighter and dimmer with adjustments to the pot. If both were turned on, what happens? I would assume the dimmer would just be ineffective. I want to be able to turn the light on and off--full power--and be able to separately dim it with others. Can I just do it the way I described? ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.