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August 28, 2015, 01:08:09 AM
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 on: August 25, 2015, 07:11:09 PM 
Started by mamontb - Last post by martyj19
How can this possibly be preferable to a handheld nav/com?
Maybe as a third backup.

 on: August 25, 2015, 05:46:50 PM 
Started by mamontb - Last post by mamontb
I would like to program my cell phone with ATC numbers for an IFR lost (radio) comms emergency.  Ideally, I'd use a Bluetooth interface between my iPhone and headset, with the ATC numbers in my Contact list.  I'd like to have numbers for local TRACON, my home field tower, and be able to add ARTCC centers for long XC.  I have numbers now that I pulled from the A/FD, but I imagine that there could be "you want to do what?  Let me see if I can transfer you" delays while I was flying in the clouds.  Any suggestions?

 on: August 25, 2015, 02:01:22 PM 
Started by Flyingnut - Last post by tyketto
On Wednesday, O'Hare permanently closed 32R/14L. This was one of the original runways from the Orchard Field days.


That one sucks. Sad

But I can see it happening. I believe that was the runway used during AAL191 (can't say for sure; I was 5 when that happened). Is it going to be reused as a taxiway, like 18/36?


 on: August 25, 2015, 08:36:05 AM 
Started by 777lrf - Last post by 777lrf

The CWP feeder is Andy - a friend of mine.  It's actually 2 radios on different frequencies being fed into 1 stream.  The freq coverage depends on the time of day and propagation.  If Andy is about he'll change the freqs to cover the most traffic (unless listening for something specific) - this is often SP (BNE & AKL) and CWP (SFO via Guam relay xmtr or TYO/MNL).

Unlike VHF ATC, HF don't use fixed freqs and they're constantly changing depending on the propagation and time of day/night.  Generally the higher freqs are used during the daylight and low freqs during darkness.  If you were to leave the radios on set freqs all the time you would end up with about 4 hours of activity and 20 hours of static.

The problem is even worse with the NAT as they have such a huge amount of freqs at their disposal these days and since the loss of the Nova Scotia feeds the coverage from LATC is not great.

For Shanwick daytime traffic they currently use 5649, 6547, 6595, 6622, 8879 and occasionally 10021.  For night time try 3446, 3476, 3491, 4675, 5583.  For Gander daytime (UTC) traffic, try 8831, 8864, 11279.  Gander nighttime (UTC) the bulk of it is on 5616 and 8891.

The West Coast NAT-D feed is currently running SFO full time for CEP1 and CEP2 regions, mainly covering the routes to/from Asia but some Hawaii traffic too.  02-04z runs 8891 but the rest of the time it's on 5547, 11282 and 10057.  smiley

Thanks for the detailed explanation. I mainly listen during the early morning hours for coverage in the pacific by sfo and Brisbane center, but it's tough to hear anything as most of the hf feeds are getting the Japan/Philippines traffic.

 on: August 25, 2015, 08:34:17 AM 
Started by 777lrf - Last post by 777lrf
Great to have a busy interesting airport and great full coverage of Dubai. Thank you!!

 on: August 25, 2015, 08:33:29 AM 
Started by Hagen - Last post by 777lrf
Hello I am PA from SJO CR I m a real ATCO C airspace Im looking for an ATC Sim for my Mac to continue increasing my skills and practice every single day !!!! If anyone can help me I do appreciate it !!! Thank you !!!

You can install windows on boot camp or use fusion/parallels and buy this program for windows:


 on: August 25, 2015, 08:18:44 AM 
Started by EXCOMPO - Last post by josecmorales
Would you mind tell us about it the antenna, and the radio?

 on: August 25, 2015, 03:48:13 AM 
Started by MattBNA - Last post by dave
Hi, great looking setup, could you give me some more info on your antenna splitter? I noticed there's something between the antenna feed and the splitter, is this some kind of a filter?

Many thanks!!!

That is an airband bandpass filter.

 on: August 25, 2015, 03:46:13 AM 
Started by StuSEL - Last post by dave
Thanks!  Let me know if I can do anything to help.

 on: August 24, 2015, 08:33:05 PM 
Started by StuSEL - Last post by StuSEL
We've been down for about 3 weeks due to building access issues -- it's been summer vacation at Purdue and there is limited access to the office where this feed is held. I've got a short term and a long term solution instead.

(1) If we can get into the building tomorrow, we will attempt to restart the feed PC. Even if that does not work, we're going through with step (2).

(2) An Arrow Antenna GP126 has been ordered and will be installed immediately after Labor Day weekend at the airport's FBO. I use one of these to run the Flint-Bishop International Airport (KFNT) feed and it has been highly successful. The clarity of the transmissions with these antennas is unreal.

(3) The PC will be accessible 16 hours a day, 7 days a week and will be hardwired to the internet with an ethernet connection to avoid problems associated with WiFi on this feed.

If we can't get the feed online in its current location tomorrow, it will continue to be offline for another 2 weeks. Once restored its quality and uptime will be even better than before.

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