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Author Topic: Antenna Question...  (Read 3652 times)
cysj_saintjohn
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« on: August 07, 2005, 12:31:04 AM »

Ok guys. I am about 120 KM's (75 mi) away from the closest highly active airport (CYQM) and i am wondering if there is any type of antenna i could connect to my AR-108 to pick up ATC from this particular airport. (IF there is any such antenna!:roll: ) I mainly use it for my personal use. No streaming over the internet here...

-Thanks
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dave
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« Reply #1 on: August 07, 2005, 10:27:41 AM »

Quote from: cysj_saintjohn
Ok guys. I am about 120 KM's (75 mi) away from the closest highly active airport (CYQM) and i am wondering if there is any type of antenna i could connect to my AR-108 to pick up ATC from this particular airport. (IF there is any such antenna!:roll: ) I mainly use it for my personal use. No streaming over the internet here...

-Thanks


At 75 miles and normal terrain there is little likelihood that you will pick up the groun (controller side) transmitters.  smiley  You should be able to hear airplanes above about 8-10,000' fairly well through.
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FlyCMI
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« Reply #2 on: August 07, 2005, 12:27:52 PM »

That's impossible, sorry.  About the furthest distance you can go is about 30-40 miles, and even that's really stretching it.
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Sirclown82
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« Reply #3 on: August 07, 2005, 12:31:29 PM »

Only way your gonna get ANY kind of reception is with a Very high gain yagi. When i say very high gain i mean one with atleast 10 radials, and atleast, atleast, 40ft (15m) up on a grounded tower. ill try to find a picture.

http://www.dxhf.darc.de/~waglog/album/tn/DL0SE%3aDL0SE%3a%20unten%20TH6DX,%20Mitte%2070cm%20Yagi,%20oben%2040m%20Dipol-dl0se_th6dx.med.jpg

like this one, but designed for VHF.  Here are a couple of other good pictures. The only problem with Yagi antennas are they tend to be a little pricey. Quads antennas provide great reception but sometimes they are heavy and require guy wires on the support pole or tower.

http://www.uta.fi/~jk54415/ant.jpg

http://www.wrightsaerials.tv/aerialphotography/images/VHF%20yagi.jpg

One more:

http://www.astrosurf.org/lombry/Radio/ant-144-tonna-2x4crosspola.jpg

Since your that far away, it may still be difficult at that distance.

I hope this helps.
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Chris
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« Reply #4 on: August 10, 2005, 09:52:07 PM »

He's right. In fact, once I leave about 10 miles on the road away from my hometown (CYTS), I'll lose the FSS and ATIS and only hear the pilots.  In fact, I can't even receive any transmissions on the all -call 126.7 freq. The only benefit I experienced was while in Peterborough Ontario (CYPQ) I was monitoring the Simco sector 127.000 and the Peterborough sector 134.25 on a Sunday, when at 2 that afternoon, the freq's split and I heard all the aircrafts clear as aday on 127.000 so I knew it split away.  But here in the north, when at 7 am the Sudbury freq splits from Timmins, I can just barely hear the flights call on 135.5.
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FSS wannabe, just curious about stuff, that's all.
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