Author Topic: Antenna Question...  (Read 5104 times)

Offline cysj_saintjohn

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Antenna Question...
« 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



Offline dave

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Re: Antenna Question...
« 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.  :-)  You should be able to hear airplanes above about 8-10,000' fairly well through.

Offline FlyCMI

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Antenna Question...
« 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.

Offline Sirclown82

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Antenna Question...
« 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

Offline Jonathan_tcu

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Scanning while travelling
« 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.
FSS wannabe, just curious about stuff, that's all.