If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
antenna dilemma
My buddies tell me my handheld is too painfull to listen to anymore. I
would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? I think the main issue with the handheld, is line-of-sight from the antenna to who I am talking to, it works fine when the aircraft is pointing towards them, or they are on the side of the glider the radio is on, but as I turn (while thermalling) I am told the transmissions cut out. Any thoughts on this? Thanks, Brad |
#2
|
|||
|
|||
antenna dilemma
On May 25, 5:57*pm, Brad wrote:
My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? I think the main issue with the handheld, is line-of-sight from the antenna to who I am talking to, it works fine when the aircraft is pointing towards them, or they are on the side of the glider the radio is on, but as I turn (while thermalling) I am told the transmissions cut out. Any thoughts on this? Thanks, Brad Brad, The all carbon Sparrowhawks have a little external antenna on the bottom of the fuselage, just behind the main gear. It can be twisted off and removed similar to a handheld antenna. It works very well. George |
#3
|
|||
|
|||
antenna dilemma
Brad wrote:
My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? If your fin and rudder are not carbon, you might be able to put an antenna on the back of the fin, just ahead of the rudder. A "coaxial dipole" style could be used if there is enough room, as the cable comes in the bottom. A standard diople using wire or tape elements would work if room is limited, and these are available commercially. Where does the manufacturer put the antenna in the ones they produce? -- Eric Greenwell - Washington State, USA * Change "netto" to "net" to email me directly * Updated! "Transponders in Sailplanes" http://tinyurl.com/y739x4 * New Jan '08 - sections on Mode S, TPAS, ADS-B, Flarm, more * "A Guide to Self-launching Sailplane Operation" at www.motorglider.org |
#4
|
|||
|
|||
antenna dilemma
On May 26, 7:35*am, Eric Greenwell wrote:
Brad wrote: My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? If your fin and rudder are not carbon, you might be able to put an antenna on the back of the fin, just ahead of the rudder. A "coaxial dipole" style could be used if there is enough room, as the cable comes in the bottom. A standard diople using wire or tape elements would work if room is limited, and these are available commercially. Where does the manufacturer put the antenna in the ones they produce? -- Eric Greenwell - Washington State, USA * Change "netto" to "net" to email me directly * Updated! "Transponders in Sailplanes"http://tinyurl.com/y739x4 * * * New Jan '08 - sections on Mode S, TPAS, ADS-B, Flarm, more * "A Guide to Self-launching Sailplane Operation" atwww.motorglider.org |
#5
|
|||
|
|||
antenna dilemma
Hi Eric,
My vertical fin is carbon too, and any wire placed aft of the fin spar would still be surrounded by carbon. I'll probably do as a few have suggested to mount the rubber ducky antenna a-la the sparrowhawk. Many thanks to everyones help! Cheers, Brad PS........I see there is a new feature we have to deal with when posting now, at least via google-groups On May 26, 7:35*am, Eric Greenwell wrote: Brad wrote: My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? If your fin and rudder are not carbon, you might be able to put an antenna on the back of the fin, just ahead of the rudder. A "coaxial dipole" style could be used if there is enough room, as the cable comes in the bottom. A standard diople using wire or tape elements would work if room is limited, and these are available commercially. Where does the manufacturer put the antenna in the ones they produce? -- Eric Greenwell - Washington State, USA * Change "netto" to "net" to email me directly * Updated! "Transponders in Sailplanes"http://tinyurl.com/y739x4 * * * New Jan '08 - sections on Mode S, TPAS, ADS-B, Flarm, more * "A Guide to Self-launching Sailplane Operation" atwww.motorglider.org |
#6
|
|||
|
|||
antenna dilemma
On Sun, 25 May 2008 17:57:22 -0700 (PDT), Brad
wrote: My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? I think the main issue with the handheld, is line-of-sight from the antenna to who I am talking to, it works fine when the aircraft is pointing towards them, or they are on the side of the glider the radio is on, but as I turn (while thermalling) I am told the transmissions cut out. I've seen a few ships that had a small whip antenna mounted on the gear door. With the gear down, of course, the antenna was horizontal, and if mounted close to the hinge line, it was high enough not to get ground damage on most fields. But that won't work if you trailer your ship with the gear up... rj |
#7
|
|||
|
|||
antenna dilemma
"Ralph Jones" wrote in message ... On Sun, 25 May 2008 17:57:22 -0700 (PDT), Brad wrote: My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? I think the main issue with the handheld, is line-of-sight from the antenna to who I am talking to, it works fine when the aircraft is pointing towards them, or they are on the side of the glider the radio is on, but as I turn (while thermalling) I am told the transmissions cut out. I've seen a few ships that had a small whip antenna mounted on the gear door. With the gear down, of course, the antenna was horizontal, and if mounted close to the hinge line, it was high enough not to get ground damage on most fields. But that won't work if you trailer your ship with the gear up... rj Hmm, well, if you mounted a BNC thru-bulkhead connector on the gear door, and the antenna had a mating BNC connector, it could br removed for trailering. That said, antenna wires have a LOT of drag so maybe a rubber duckie.... Bill D |
#8
|
|||
|
|||
antenna dilemma
On Mon, 26 May 2008 13:23:04 -0600, "Bill Daniels"
bildan@comcast-dot-net wrote: "Ralph Jones" wrote in message .. . On Sun, 25 May 2008 17:57:22 -0700 (PDT), Brad wrote: My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? I think the main issue with the handheld, is line-of-sight from the antenna to who I am talking to, it works fine when the aircraft is pointing towards them, or they are on the side of the glider the radio is on, but as I turn (while thermalling) I am told the transmissions cut out. I've seen a few ships that had a small whip antenna mounted on the gear door. With the gear down, of course, the antenna was horizontal, and if mounted close to the hinge line, it was high enough not to get ground damage on most fields. But that won't work if you trailer your ship with the gear up... rj Hmm, well, if you mounted a BNC thru-bulkhead connector on the gear door, and the antenna had a mating BNC connector, it could br removed for trailering. That said, antenna wires have a LOT of drag so maybe a rubber duckie.... Actually, the one I remember best was on the 1-36 that Big John Brittingham owned briefly, and he used it as a gear warning once...he was well into his landing flare when he heard the antenna scraping on the pavement, pulled up, slammed the gear, and touched down. Don't think I would have asked for a broken wrist to save some sheet metal work...;-) rj |
#9
|
|||
|
|||
antenna dilemma
SHOUT LOUDER
;-)) At 19:23 26 May 2008, Bill Daniels wrote: "Ralph Jones" wrote in message .. . On Sun, 25 May 2008 17:57:22 -0700 (PDT), Brad wrote: My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? I think the main issue with the handheld, is line-of-sight from the antenna to who I am talking to, it works fine when the aircraft is pointing towards them, or they are on the side of the glider the radio is on, but as I turn (while thermalling) I am told the transmissions cut out. I've seen a few ships that had a small whip antenna mounted on the gear door. With the gear down, of course, the antenna was horizontal, and if mounted close to the hinge line, it was high enough not to get ground damage on most fields. But that won't work if you trailer your ship with the gear up... rj Hmm, well, if you mounted a BNC thru-bulkhead connector on the gear door, and the antenna had a mating BNC connector, it could br removed for trailering. That said, antenna wires have a LOT of drag so maybe a rubber duckie.... Bill D |
#10
|
|||
|
|||
antenna dilemma
I think Eric is on to something. How about a wire dipole glued to the
trailing edge of the rudder? You could drill a tiny hole(s) somewhere in the middle of the trailing edge into the body of the rudder in order to run the wires. Externally you would have nothing except very small wires that could be glued and faired into the trailing edge. Just a thought. Larry "Brad" wrote in message : Hi Eric, My vertical fin is carbon too, and any wire placed aft of the fin spar would still be surrounded by carbon. I'll probably do as a few have suggested to mount the rubber ducky antenna a-la the sparrowhawk. Many thanks to everyones help! Cheers, Brad PS........I see there is a new feature we have to deal with when posting now, at least via google-groups On May 26, 7:35 am, Eric Greenwell wrote: Brad wrote: My buddies tell me my handheld is too painfull to listen to anymore. I would put in a panel mount, but since I have a mostly carbon aircraft, where should I put the antenna? Too late to install it in the rudder, or is there a solution that would allow me to install one in the rudder?? If your fin and rudder are not carbon, you might be able to put an antenna on the back of the fin, just ahead of the rudder. A "coaxial dipole" style could be used if there is enough room, as the cable comes in the bottom. A standard diople using wire or tape elements would work if room is limited, and these are available commercially. Where does the manufacturer put the antenna in the ones they produce? -- Eric Greenwell - Washington State, USA * Change "netto" to "net" to email me directly * Updated! "Transponders in Sailplanes"http://tinyurl.com/y739x4 * New Jan '08 - sections on Mode S, TPAS, ADS-B, Flarm, more * "A Guide to Self-launching Sailplane Operation" atwww.motorglider.org |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Aviation Dilemma 101 - How much trust in a 10 day forecast?? | Kyle Boatright | Piloting | 25 | July 22nd 06 12:52 PM |
More on Fuel Management - and an Ethical Dilemma | Greg Farris | Instrument Flight Rules | 46 | July 22nd 05 06:38 PM |
More on Fuel Management - and an Ethical Dilemma | Greg Farris | Piloting | 47 | July 22nd 05 06:38 PM |
Briefing Dilemma | Kyle Boatright | Piloting | 15 | February 7th 05 07:10 PM |
Small dilemma...YES, this is true.... | Halen19717 | Piloting | 12 | December 2nd 04 01:12 PM |