---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 09/07/14: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:45 AM - Continuous open squelch Icom RFI Gemini (Ken) 2. 05:28 PM - Re: Speaking of battery issues... (Robert L. Nuckolls, III) 3. 09:58 PM - Re: Shield wiring () ________________________________ Message 1 _____________________________________ Time: 10:45:47 AM PST US From: Ken Subject: AeroElectric-List: Continuous open squelch Icom RFI Gemini Just some comments for the archives since I could not find any specific info on this problem. Perhaps it will help someone in the future. When my Icom A200 VHF was replaced with a new A210, I was plagued much of the time with an open squelch even with max squelch selected. The interference was coming in through the antenna. It turns out that the cast metal radio frame is ever so slightly wider than the older radio. Widening the panel opening a tiny bit to let the radio slide about 0.020" further into the tray fixed the problem. I would also note that I found it easy to remove and install the A210 without disconnecting that front panel ribbon cable that has caused problems for some owners. Confounding my trouble shooting was that my handheld VHF has had the same problem with an uncontrollable open squelch when placed on the glareshield. Battery powered but with the rubber ducky antenna. I don't often use it like that and had not noticed exactly when it started to misbehave other than it was a couple of years ago. It seems that RFI from a Gemini glass ADI was contributing to that problem. A 0.001 uF capacitor across the power connections in its Dsub connector quieted that enough to make the handheld stop breaking squelch at least when it is above the metal glareshield. Even easier would be one of these filters. http://www.l-com.com/d-sub-capacitive-filter-emc-adapter-db9-male-female Ken ________________________________ Message 2 _____________________________________ Time: 05:28:25 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Speaking of battery issues... At 03:03 AM 8/27/2014, you wrote: >Hi Bob- > >Were you ever able to glean anything from the >Battery Tender Jr I sent you some time back? > >Tnx- Not yet . . . but testing is under way . . . I had some help from my grand-daughter this summer who did a bang-up job getting rid of some trash and getting stuff 'organized' in my office/electronics shop. Unfortunately, I had three Battery Tender Jr. in one box and don't know which one is yours. Got out the data acquisition system and set up to 'cycle' all three devices. It will be an interesting comparison. It will take a few days but the experiment is moving forward . . . we'll see if we can identify your charger by its behaviors in a blind study. Bob . . . ________________________________ Message 3 _____________________________________ Time: 09:58:17 PM PST US From: Subject: Re: AeroElectric-List: Shield wiring ...and know that the unit does not come with a jumper to use! I robbed one from an old computer hard drive for an ACK unit on another Berkut I'm working on. -James Berkut/Race 13 -----Original Message----- From: Werner Schneider Sent: Friday, September 05, 2014 3:02 AM Subject: Re: AeroElectric-List: Shield wiring --> Do not forget as well to have the correct baud rate selected via the jumper inside! ------------------------------------------------------------------------------------- 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.