---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 11/14/11: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:27 AM - Re: antenna connections (messydeer) 2. 07:54 AM - Re: Re: antenna connections (Robert L. Nuckolls, III) 3. 08:22 AM - Re: antenna connections (messydeer) 4. 11:06 AM - Re: Re: antenna connections (Robert L. Nuckolls, III) 5. 09:12 PM - Re: antenna connections (messydeer) 6. 10:04 PM - Question about ADS-B In/Out and Transponders (Ralph Finch) 7. 11:04 PM - Re: Question about ADS-B In/Out and Transponders (Dave Saylor) ________________________________ Message 1 _____________________________________ Time: 07:27:35 AM PST US Subject: AeroElectric-List: Re: antenna connections From: "messydeer" Thanks, Bob :-) I'll prolly get that antenna from RS. I had read some about antennas being 'tuned', so any 22" long one would work? Also heard something about different resistance in either the connectors or the antenna. Do I need to be concerned about that? -------- Dan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=357815#357815 ________________________________ Message 2 _____________________________________ Time: 07:54:41 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: antenna connections At 09:23 AM 11/14/2011, you wrote: > >Thanks, Bob :-) > >I'll prolly get that antenna from RS. I had read some about antennas >being 'tuned', so any 22" long one would work? Yes, that's total length from top of mounting surface to tip of antenna . . . so that includes height of the mount. >Also heard something about different resistance in either the >connectors or the antenna. Do I need to be concerned about that? No. There ARE connectors designed for minimizing "impedance bumps" at the joints for the popular feed line impedances . . . but that's of no significance to our task. Bob . . . ________________________________ Message 3 _____________________________________ Time: 08:22:50 AM PST US Subject: AeroElectric-List: Re: antenna connections From: "messydeer" Goodie :-) I know suggested I get a UHF-BNC adapter and that you have BNC right angle connectors. I just noticed the seller of these mounts also has a UHF right angle adapter. Would you have a straight UHF connector for the cable, or should I stick with plan A and get a straight UHF-BNC adapter? -------- Dan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=357826#357826 Attachments: http://forums.matronics.com//files/right_angle_uhf_connector_ra259_236.jpg ________________________________ Message 4 _____________________________________ Time: 11:06:52 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: antenna connections At 10:19 AM 11/14/2011, you wrote: > >Goodie :-) > >I know suggested I get a UHF-BNC adapter and that you have BNC right >angle connectors. I just noticed the seller of these mounts also has >a UHF right angle adapter. Would you have a straight UHF connector >for the cable, or should I stick with plan A and get a straight >UHF-BNC adapter? UHF to BNC Bob. . . ________________________________ Message 5 _____________________________________ Time: 09:12:22 PM PST US Subject: AeroElectric-List: Re: antenna connections From: "messydeer" K. Got the RS antenna. My only initial anal concern was the weight at .20" diameter at the 22" mark. It tapered down to less than 1/8", but that was near the end of the original 120". I've seen some com antennas listed as 0.15" thick, so I gained 1.5 oz. I bent it at ~8" to about 40 degrees after heating it with a propane/air torch. Used a little $10 HF tubing bender. It wanted to also put another bend real close to the base, but the bender config would have made that real tough, so I increased the bend to 68 degrees at the original location. I ran a scotchbrite roloc over it to get the discoloration out, which was fairly easy to do. Will this area be as stain resistant as the other areas? When I got my EGT probes, the bayonets were welded to hose clamps. Around the welded area there was rust. Clearance under my Sonex TD is ~19" at the planned location of the antenna. Vertical for the antenna is ~13", giving me 6" ground clearance. I also just bought that base connector off eBay. This has been the type of project I really like. Doing something simple and saving money. $22 for the antenna, $5 for the mount, $2 for the BNC-UHF adapter at Frys. That compares to over $65 just for the antenna at ACS, which still needs more bending to go on the belly. Thanks, Bob! -------- Dan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=357902#357902 Attachments: http://forums.matronics.com//files/rs_antenna_single_bend_822.jpg ________________________________ Message 6 _____________________________________ Time: 10:04:26 PM PST US From: Ralph Finch Subject: AeroElectric-List: Question about ADS-B In/Out and Transponders Assume I want ADS-B In and Out capability. In a new build--no legacy equipment--can I install ONLY a UAT on 978 MHz? or do I still need to also install at least a Mode-C transponder (1090 MHz)? ________________________________ Message 7 _____________________________________ Time: 11:04:34 PM PST US From: Dave Saylor Subject: Re: AeroElectric-List: Question about ADS-B In/Out and Transponders FAR 91.215 says you have to have a transponder. Maybe that will change some day, but they've got a few years. Dave Saylor AirCrafters 140 Aviation Way Watsonville, CA 95076 831-722-9141 Shop 831-750-0284 Cell On Mon, Nov 14, 2011 at 9:57 PM, Ralph Finch wrote: > Assume I want ADS-B In and Out capability. In a new build--no legacy > equipment--can I install ONLY a UAT on 978 MHz? or do I still need to also > install at least a Mode-C transponder (1090 MHz)? > > * > > * > > ------------------------------------------------------------------------------------- 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.