Author Topic: Need feed volunteer for Chicago Approach 125.0  (Read 9984 times)

Offline dave

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Need feed volunteer for Chicago Approach 125.0
« on: December 01, 2013, 11:35:50 AM »
We have some unfilterable interference right on 125.0 at our Chicago megafeed site so we've finally had to lock out 125.0.  This creates a hole in the Chicago Departure coverage, especially overnight on the mid shift.

If anyone is within range of O'Hare (5-12 miles +/-) and think they can help, please contact me.

Thanks,
Dave



Offline Chananya Freedman

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #1 on: December 01, 2013, 01:22:16 PM »
Didn't you tell me Dave that there was nothing that could be done to fix that problem?
73's KI6YIL
Chananya Freedman
A HAM Radio operato
An uncle

Offline StuSEL

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #2 on: December 02, 2013, 02:12:36 AM »
Didn't you tell me Dave that there was nothing that could be done to fix that problem?
It's likely that nothing can be done to fix the problem at the current feed location. If someone can set up a scanner at an alternate location, the interference probably won't be an issue there.
CFII

Offline Flyingnut

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #3 on: January 20, 2014, 01:52:49 PM »
Chananya contacted me via PM, since he saw that I live near KORD, and asked about my reception of 125.0.  I have a Sony Wavehawk with a Diamond RH77CA whip.  I can pickup both sides with no problem, but I also have the constant carrier with a squealing noise.
« Last Edit: January 20, 2014, 03:15:40 PM by Flyingnut »
Marty
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8 NW of KORD

Offline dave

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #4 on: January 20, 2014, 01:53:42 PM »
Chananya contacted me via PM, since is saw I live near KORD, and asked about my reception of 125.0.  I have a Sony Wavehawk with a Diamond RH77CA whip.  I can pickup both sides with no problem, but I also have the constant carrier with a squealing noise.

Thanks Marty‚Ķvery unfortunate, that frequency is.  :-)

Offline Chananya Freedman

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #5 on: January 20, 2014, 01:59:07 PM »
Dave there is nothing anyone can do? it is a very important frequency in my opinion.
73's KI6YIL
Chananya Freedman
A HAM Radio operato
An uncle

Offline Flyingnut

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #6 on: January 20, 2014, 02:13:38 PM »
As a follow-up, I also have a Vertex-Standard VXA-210 Pilot Nav/Com Transceiver which I have for backup communications for GA flying.

I also get the constant carrier with a squealing noise with that unit too on 125.0.
Marty
PPL - Instrument Rating
8 NW of KORD

Offline dave

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #7 on: January 20, 2014, 02:27:27 PM »
It's a very important frequency - but we have yet to find a location around Chicago that doesn't have interference on that frequency.  125.0 is a very bad frequency, primarily due to cable TV leakage interference and possibly other things.  Very hard to filter out.

Offline Chananya Freedman

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #8 on: January 20, 2014, 02:38:44 PM »
Is there anything they can do at the transmitter sight to minimize the issue?
73's KI6YIL
Chananya Freedman
A HAM Radio operato
An uncle

Offline dave

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #9 on: January 20, 2014, 02:41:39 PM »
Is there anything they can do at the transmitter sight to minimize the issue?

Yes - there is one thing.  Stop using 125.0 and switch it to a different frequency.  :-)  It has nothing to do with the transmitter per se - it has to do with the frequency.

Offline Chananya Freedman

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #10 on: January 20, 2014, 02:44:19 PM »
Have they thought about it?
73's KI6YIL
Chananya Freedman
A HAM Radio operato
An uncle

Offline dave

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #11 on: January 20, 2014, 02:45:13 PM »
Have they thought about it?

Unless they start having issue communicating with aircraft they won't be thinking about it.  The FAA only cares about operational issues - this is not an operational issue.  It's just an annoyance to those of us who would like to listen.

Offline Chananya Freedman

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #12 on: January 20, 2014, 02:51:31 PM »
Didn't it work a little bit better on the old ORD departure? Feed at least it didn't keep the squelch open very long and you can hear both sides. What happen to that violator
73's KI6YIL
Chananya Freedman
A HAM Radio operato
An uncle

Offline dave

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #13 on: January 21, 2014, 01:07:01 PM »
We're still looking for a volunteer in range of ORD willing to feed 125.0 - that is about all I can say right now.  Doesn't really matter what there was before.  :-)

Offline Chananya Freedman

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #14 on: January 21, 2014, 01:12:30 PM »
I will send you an email this week, probably Thursday.
73's KI6YIL
Chananya Freedman
A HAM Radio operato
An uncle

Offline dave

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Re: Need feed volunteer for Chicago Approach 125.0
« Reply #15 on: August 17, 2015, 10:41:35 AM »
We now have a reasonably solid 125.0 feed.  Also added a stereo feed that has all the Chicago Departure sectors on it.

http://www.liveatc.net/search/?icao=kord