---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Mon 05/15/17: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:25 PM - Radio static when using 12 volt lighter power plug (Rebel56) 2. 04:12 PM - Re: Radio static when using 12 volt lighter power plug (fherr) 3. 04:25 PM - Re: Radio static when using 12 volt lighter power plug (swperk) 4. 09:46 PM - Re: Radio static when using 12 volt lighter power plug (=?utf-8?Q?Georg_Isenb=C3=BCrger?=) ________________________________ Message 1 _____________________________________ Time: 03:25:13 PM PST US Subject: Avionics-List: Radio static when using 12 volt lighter power plug From: "Rebel56" Obviously I have not grounded something properly, but I am at a loss. I have two cigarette lighter plugs wired into my aircraft. They are to provide power to my iPad on longer flights. I have noticed that whenever I have the iPad plugged in I get some static when I receive a transmission. Otherwise the radio is quiet. Not sure what to make of this. Why is it only on receiving? I would think that if it was a ground issue, I would have the static all the time. If there is nothing plugged into the power plug, I have no issues at all. Any ideas as to what I should check first. Rebel56 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469331#469331 ________________________________ Message 2 _____________________________________ Time: 04:12:51 PM PST US Subject: Re: Avionics-List: Radio static when using 12 volt lighter power plug From: fherr I suggest you check your battery first (age, charge level, capability to take a charge). You could be pushing it over the limit and may not hear any issue when transmitting. Easy checks that could solve the issue. Francis On May 15, 2017, at 6:24 PM, Rebel56 wrote: Obviously I have not grounded something properly, but I am at a loss. I have two cigarette lighter plugs wired into my aircraft. They are to provide power to my iPad on longer flights. I have noticed that whenever I have the iPad plugged in I get some static when I receive a transmission. Otherwise the radio is quiet. Not sure what to make of this. Why is it only on receiving? I would think that if it was a ground issue, I would have the static all the time. If there is nothing plugged into the power plug, I have no issues at all. Any ideas as to what I should check first. Rebel56 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469331#469331 ________________________________ Message 3 _____________________________________ Time: 04:25:55 PM PST US Subject: Avionics-List: Re: Radio static when using 12 volt lighter power plug From: "swperk" Can you manually open the squelch on your receiver? If so, is the noise present when there is no transmission being received? If so, I suspect that the adapter that powers your iPad is emitting lots of RF noise and it's time to find a better one. I had the same problem with my plane, but mine was so bad that it was noisy enough to break the squelch on its own. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469335#469335 ________________________________ Message 4 _____________________________________ Time: 09:46:02 PM PST US From: =?utf-8?Q?Georg_Isenb=C3=BCrger?= Subject: Re: Avionics-List: Radio static when using 12 volt lighter power plug unfortunately there are a lot of those cheap USB power adapters for lighter plugs on the market. A lot of them are producing RF interference. I have had the same problems. You have to try a few until you find one that is not causing RF interference. Am 16.05.2017 um 00:24 schrieb Rebel56 : Obviously I have not grounded something properly, but I am at a loss. I have two cigarette lighter plugs wired into my aircraft. They are to provide power to my iPad on longer flights. I have noticed that whenever I have the iPad plugged in I get some static when I receive a transmission. Otherwise the radio is quiet. Not sure what to make of this. Why is it only on receiving? I would think that if it was a ground issue, I would have the static all the time. If there is nothing plugged into the power plug, I have no issues at all. Any ideas as to what I should check first. Rebel56 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469331#469331 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message avionics-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Avionics-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/avionics-list Browse Digests http://www.matronics.com/digest/avionics-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.