---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Fri 02/15/08: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:39 AM - Loran Antenna (Don Curry) 2. 06:34 AM - Re: Loran Antenna (Kelly McMullen) 3. 05:32 PM - Navaid devices (Herb Heaton) 4. 05:41 PM - Re: Loran Antenna (Noel Loveys) ________________________________ Message 1 _____________________________________ Time: 05:39:41 AM PST US From: "Don Curry" Subject: Avionics-List: Loran Antenna Many believe Loran is dead technology, but I'm not one of them. Old, yes; stale, yes; but dead, no! In fact, I'm including a KLN-88 in a panel project on a Tiger. Which brings me to my question. I have room in my wingtips for the KA-84 antenna, but I'm concerned about reception. Is "ground plane" an issue with Loran? If so, would the wingtip location provide sufficient ground plane? Are there any other reasons to NOT consider the wingtips as a location for the antenna? Also, while I don't currently have strobe lights in my wingtips, I would like to retain the option of installing them in the future. Since I'm certain that strobe lights would interfere with Loran reception, is there some type of shielding that I could install along with the strobes to prevent the interference? Don ________________________________ Message 2 _____________________________________ Time: 06:34:53 AM PST US From: Kelly McMullen Subject: Re: Avionics-List: Loran Antenna I don't know for certain, but given that it operates down in the frequency spectrum with/below ADF, I suspect ground plane is useful. I know my Northstar M1 has a setup question for whether the antenna is on top or bottom of fuselage, so orientation apparently matters. As I recall, Whelan has a spec for how far power supply and strobes should be from loran and other antennas. Don Curry wrote: > > > Many believe Loran is dead technology, but I'm not one of them. Old, yes; > stale, yes; but dead, no! In fact, I'm including a KLN-88 in a panel > project on a Tiger. Which brings me to my question. I have room in my > wingtips for the KA-84 antenna, but I'm concerned about reception. Is > "ground plane" an issue with Loran? If so, would the wingtip location > provide sufficient ground plane? Are there any other reasons to NOT > consider the wingtips as a location for the antenna? Also, while I don't > currently have strobe lights in my wingtips, I would like to retain the > option of installing them in the future. Since I'm certain that strobe > lights would interfere with Loran reception, is there some type of shielding > that I could install along with the strobes to prevent the interference? > Don > > > ________________________________ Message 3 _____________________________________ Time: 05:32:46 PM PST US From: "Herb Heaton" Subject: Avionics-List: Navaid devices I have been trying to contact Navaid Devices for the past week with no success. Their phone keeps ringing but there is no answer. Does anyone know how to contact them? Herb ________________________________ Message 4 _____________________________________ Time: 05:41:42 PM PST US From: "Noel Loveys" Subject: RE: Avionics-List: Loran Antenna I had to look it up (must be getting old) one of the North Atlantic chain stations is about three gunshots down the road form this location and i have had the full tour of the site. However I digress... This is the dope on Loran C. It operates on a band between 90kHz and 110kHz MW same as your ADF. This means you can use the sense antenna for your ADF when run through a splitter to operate your Loran C properly. This is a receive antenna and is not so particular about the presence of a ground plane as an MW broadcast antenna would be. Be careful it will not work with the gogniometer (loop antenna) for your ADF so make sure you hook it up through a splitter or directly (if you are pulling the ADF) to the long wire sense antenna. Noel -----Original Message----- From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com] On Behalf Of Kelly McMullen Sent: Friday, February 15, 2008 11:00 AM Subject: Re: Avionics-List: Loran Antenna I don't know for certain, but given that it operates down in the frequency spectrum with/below ADF, I suspect ground plane is useful. I know my Northstar M1 has a setup question for whether the antenna is on top or bottom of fuselage, so orientation apparently matters. As I recall, Whelan has a spec for how far power supply and strobes should be from loran and other antennas. Don Curry wrote: > > > Many believe Loran is dead technology, but I'm not one of them. Old, yes; > stale, yes; but dead, no! In fact, I'm including a KLN-88 in a panel > project on a Tiger. Which brings me to my question. I have room in my > wingtips for the KA-84 antenna, but I'm concerned about reception. Is > "ground plane" an issue with Loran? If so, would the wingtip location > provide sufficient ground plane? Are there any other reasons to NOT > consider the wingtips as a location for the antenna? Also, while I don't > currently have strobe lights in my wingtips, I would like to retain the > option of installing them in the future. Since I'm certain that strobe > lights would interfere with Loran reception, is there some type of shielding > that I could install along with the strobes to prevent the interference? > Don > > > ------------------------------------------------------------------------------------- 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.