---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Tue 09/12/17: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:59 AM - Baklan won't transmit (Yak Driver) 2. 05:19 AM - Re: Low Pass Engine Sputter (Richard Romaine) 3. 09:17 AM - Re: Baklan won't transmit (Walter Lannon) 4. 10:36 AM - Re: Baklan won't transmit (Rico Jaeger) 5. 11:28 AM - Re: [Non-DoD Source] Re: Baklan won't transmit (Bitterlich, Mark G CIV NAVAIR, WD) 6. 11:42 AM - Re: [Non-DoD Source] Re: Baklan won't transmit (Rico Jaeger) 7. 01:24 PM - Re: Ignore at your peril (threein60) ________________________________ Message 1 _____________________________________ Time: 03:59:15 AM PST US Subject: Yak-List: Baklan won't transmit From: "Yak Driver" Hi Yakkers, I have the original baklan radio in my Yak 18T - series II. I can hear other aircraft, the intercom works fine but when I try and transmit via the PTT switch no one can hear me. It drops a carrier wave but there is no audible transmission coming through. It is the same on both sides. Has anyone had a similar fault? Thanks in advance. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=472820#472820 ________________________________ Message 2 _____________________________________ Time: 05:19:02 AM PST US From: Richard Romaine Subject: Re: Yak-List: Low Pass Engine Sputter Is there something in that a diving entry, low pass is a longer max inlet p ressure (high dynamic ram and ambient pressure), high load event than the a erobatics?=C2- Something that can tolerate a transient but not the sustained pass followed by a pull up?=C2- In the humid DC area, my carb icing has been worst on climbout after runnin g too long on ground...have seen the condensation on the carb after immedia te return and shutdown.=C2- Rich ________________________________ Message 3 _____________________________________ Time: 09:17:14 AM PST US From: "Walter Lannon" Subject: Re: Yak-List: Baklan won't transmit Try a different mic. before you trash the radio. -----Original Message----- From: Yak Driver Sent: Tuesday, September 12, 2017 3:58 AM Subject: Yak-List: Baklan won't transmit Hi Yakkers, I have the original baklan radio in my Yak 18T - series II. I can hear other aircraft, the intercom works fine but when I try and transmit via the PTT switch no one can hear me. It drops a carrier wave but there is no audible transmission coming through. It is the same on both sides. Has anyone had a similar fault? Thanks in advance. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=472820#472820 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 4 _____________________________________ Time: 10:36:25 AM PST US From: Rico Jaeger Subject: Re: Yak-List: Baklan won't transmit I had this exact same thing happen a year ago. The FBO / other aircraft sai d they could detect the carrier wave but no audio. Upon inspection, one of the wires had let go on my helmet / headset jacks. 2 minutes of soldering l ater...VOILA! It may be worth a look... GOOD LUCK! Rico Jaeger 915 S. 11th Ave. Wausau, WI. 54401 715.529.7426 // 1969 Cessna 150J ^/---//-X N61333 // Hangar #35 / AUW // 1992 Yakovlev Yak 52 ^/---//-X N21YK // Hangar #21 / AUW ________________________________ From: owner-yak-list-server@matronics.com on behalf of Walter Lannon Sent: Tuesday, September 12, 2017 11:15:45 AM Subject: Re: Yak-List: Baklan won't transmit Try a different mic. before you trash the radio. -----Original Message----- From: Yak Driver Sent: Tuesday, September 12, 2017 3:58 AM Subject: Yak-List: Baklan won't transmit Hi Yakkers, I have the original baklan radio in my Yak 18T - series II. I can hear othe r aircraft, the intercom works fine but when I try and transmit via the PTT switch no one can hear me. It drops a carrier wave but there is no audible transmission coming through. It is the same on both sides. Has anyone had a similar fault? Thanks in advance. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=472820#472820 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 5 _____________________________________ Time: 11:28:56 AM PST US From: "Bitterlich, Mark G CIV NAVAIR, WD" Subject: RE: [Non-DoD Source] Re: Yak-List: Baklan won't transmit It's a good thought Rico, but if you read his posting carefully, you'll notice he said his Intercom was working perfectly. If the ICS is working with good microphone audio, it is not the headset or the plugs, sockets, etc. I've held off commenting on his predicament because troubleshooting it is not that easy unless you have some sort of equipment. That said, I'll give it a shot. First, be darn sure it has good carrier output ... it would be nice to connect a watt-meter to it and actually check power output. The easiest next step is to borrow a radio from another owner (YAK-52's use the same radio) plug it in and see if it fixes the problem. The issue is if that is not possible. There are many ways to figure out if microphone audio is getting to the radio itself. These run the gamut from Oscilloscopes, to low level audio meters, etc. Obviously the goal here is to verify that mike audio is getting to the radio itself properly. That is the logic tree split ... wiring/parts going to the radio, or the radio itself. The problem deals with how much training you have had, and your ability to use the tools. With that in mind, if you can't get your hands on a borrowed radio R/T itself, take a look at the link below. This telephone troubleshooting tool includes an inductive pickup probe with speaker. There are different brand names for this tool, and last time I checked even Lowe's had them available. https://www.amazon.com/Extech-40180-Generator-Amplifier-Circuit/dp/B00023RVNO And much much cheaper on EBay: https://www.ebay.com/p/Progressive-Tempo-200EP-Inductive-Amplifier-77hp-Probe-Kit/1107588415 This tool allows you to just stick the probe near the wire itself. You can stick it into the back shell of a cannon plug where the pins go (carefully) and listen to actual audio that is being carried through the wire. Yes, it gets much louder if you actually touch the metal of the pin itself, but just getting close to it will work. The other half of this device is a tone GENERATOR. It puts audio INTO a wire so that you can then check it with the Inductive Pickup Probe! Besides checking for mike audio, this tool set has many other very powerful uses. If you put a tone into a wire that is in a bundle, you can pull the wires apart further down in the airplane and FIND that exact wire, without cutting and dicing. This was exactly the intent of the design, and although it was meant for telephone cable pairs, it works on ANY wire for ANY purpose and will accomplish the goal here with very little training. Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Rico Jaeger Sent: Tuesday, September 12, 2017 1:35 PM Subject: [Non-DoD Source] Re: Yak-List: Baklan won't transmit I had this exact same thing happen a year ago. The FBO / other aircraft said they could detect the carrier wave but no audio. Upon inspection, one of the wires had let go on my helmet / headset jacks. 2 minutes of soldering later...VOILA! It may be worth a look... GOOD LUCK! Rico Jaeger 915 S. 11th Ave. Wausau, WI. 54401 715.529.7426 // 1969 Cessna 150J ^/---//-X N61333 // Hangar #35 / AUW // 1992 Yakovlev Yak 52 ^/---//-X N21YK // Hangar #21 / AUW ________________________________ From: owner-yak-list-server@matronics.com on behalf of Walter Lannon Sent: Tuesday, September 12, 2017 11:15:45 AM Subject: Re: Yak-List: Baklan won't transmit Try a different mic. before you trash the radio. -----Original Message----- From: Yak Driver Sent: Tuesday, September 12, 2017 3:58 AM Subject: Yak-List: Baklan won't transmit Hi Yakkers, I have the original baklan radio in my Yak 18T - series II. I can hear other aircraft, the intercom works fine but when I try and transmit via the PTT switch no one can hear me. It drops a carrier wave but there is no audible transmission coming through. It is the same on both sides. Has anyone had a similar fault? Thanks in advance. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=472820#472820 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ========== Email Forum - List">http://www.matronics.com/Navigator?Yak-List ========== p; - MATRONICS WEB FORUMS - ums.matronics.com ========== p; - NEW MATRONICS LIST WIKI - matronics.com ========== p; - List Contribution Web Site - p; -Matt Dralle, List Admin. http://www.matronics.com/contribution ========== ________________________________ Message 6 _____________________________________ Time: 11:42:24 AM PST US From: Rico Jaeger Subject: Re: [Non-DoD Source] Re: Yak-List: Baklan won't transmit Great point, Mark. Well, that's what you get when a music teacher ventures out of his (narrow) area of expertise! :-/ Rico Jaeger 915 S. 11th Ave. Wausau, WI. 54401 715.529.7426 // 1969 Cessna 150J ^/---//-X N61333 // Hangar #35 / AUW // 1992 Yakovlev Yak 52 ^/---//-X N21YK // Hangar #21 / AUW ________________________________ From: owner-yak-list-server@matronics.com on behalf of Bitterlich, Mark G CIV NAVAIR, WD Sent: Tuesday, September 12, 2017 1:27:23 PM Subject: RE: [Non-DoD Source] Re: Yak-List: Baklan won't transmit itterlich@navy.mil> It's a good thought Rico, but if you read his posting carefully, you'll not ice he said his Intercom was working perfectly. If the ICS is working wit h good microphone audio, it is not the headset or the plugs, sockets, etc. I've held off commenting on his predicament because troubleshooting it is not that easy unless you have some sort of equipment. That said, I'll give it a shot. First, be darn sure it has good carrier output ... it would be nice to conn ect a watt-meter to it and actually check power output. The easiest next step is to borrow a radio from another owner (YAK-52's use the same radio) plug it in and see if it fixes the problem. The issue is if that is not possible. There are many ways to figure out if microphone audio is getting to the radio itself. These run the gamut from Oscillosco pes, to low level audio meters, etc. Obviously the goal here is to verify that mike audio is getting to the radio itself properly. That is the logi c tree split ... wiring/parts going to the radio, or the radio itself. The problem deals with how much training you have had, and your ability to use the tools. With that in mind, if you can't get your hands on a borrowed radio R/T itse lf, take a look at the link below. This telephone troubleshooting tool in cludes an inductive pickup probe with speaker. There are different brand n ames for this tool, and last time I checked even Lowe's had them available. https://www.amazon.com/Extech-40180-Generator-Amplifier-Circuit/dp/B00023RV NO And much much cheaper on EBay: https://www.ebay.com/p/Progressive-Tempo-200EP-Inductive-Amplifier-77hp-Pro be-Kit/1107588415 This tool allows you to just stick the probe near the wire itself. You can stick it into the back shell of a cannon plug where the pins go (carefully ) and listen to actual audio that is being carried through the wire. Yes, it gets much louder if you actually touch the metal of the pin itself, but just getting close to it will work. The other half of this device is a to ne GENERATOR. It puts audio INTO a wire so that you can then check it wit h the Inductive Pickup Probe! Besides checking for mike audio, this tool set has many other very powerful uses. If you put a tone into a wire that is in a bundle, you can pull th e wires apart further down in the airplane and FIND that exact wire, withou t cutting and dicing. This was exactly the intent of the design, and alth ough it was meant for telephone cable pairs, it works on ANY wire for ANY p urpose and will accomplish the goal here with very little training. Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@mat ronics.com] On Behalf Of Rico Jaeger Sent: Tuesday, September 12, 2017 1:35 PM Subject: [Non-DoD Source] Re: Yak-List: Baklan won't transmit I had this exact same thing happen a year ago. The FBO / other aircraft sai d they could detect the carrier wave but no audio. Upon inspection, one of the wires had let go on my helmet / headset jacks. 2 minutes of soldering l ater...VOILA! It may be worth a look... GOOD LUCK! Rico Jaeger 915 S. 11th Ave. Wausau, WI. 54401 715.529.7426 // 1969 Cessna 150J ^/---//-X N61333 // Hangar #35 / AUW // 1992 Yakovlev Yak 52 ^/---//-X N21YK // Hangar #21 / AUW ________________________________ From: owner-yak-list-server@matronics.com on behalf of Walter Lannon Sent: Tuesday, September 12, 2017 11:15:45 AM Subject: Re: Yak-List: Baklan won't transmit Try a different mic. before you trash the radio. -----Original Message----- From: Yak Driver Sent: Tuesday, September 12, 2017 3:58 AM Subject: Yak-List: Baklan won't transmit Hi Yakkers, I have the original baklan radio in my Yak 18T - series II. I can hear othe r aircraft, the intercom works fine but when I try and transmit via the PTT switch no one can hear me. It drops a carrier wave but there is no audible transmission coming through. It is the same on both sides. Has anyone had a similar fault? Thanks in advance. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=472820#472820 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus Email Forum - List">http://www.matronics.com/Navigator?Yak-List p; - MATRONICS WEB FORUMS - ums.matronics.com p; - NEW MATRONICS LIST WIKI - matronics.com p; - List Contribution Web Site - p; -Matt Dralle, List Admin. http://www.matronics.com/contribution ________________________________ Message 7 _____________________________________ Time: 01:24:02 PM PST US Subject: Yak-List: Re: Ignore at your peril From: "threein60" I did mine just as a matter of course. I maintain a 5 year inspection. I found that my emergency tank was severely pitted and test house would not test it. This was a time bomb waiting to happen. I replaced my emergency bottle and main checked good. Always a good check to be done, but many ignore. :? 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