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 1 
 on: November 25, 2014, 12:59:00 PM 
Started by Chananya Freedman - Last post by Chananya Freedman
Hi everyone, it is that time of year when I do my annual post saying Happy Thanksgiving.  There has been a lot of stuff happening since I last made a similar topic last year including me becoming an uncle.  Wishing everyone a great week.

 2 
 on: November 24, 2014, 11:11:06 PM 
Started by Rob K - Last post by Rob K
Hi all,

In addition to the new 8903 feed, the current 8942 feed has also been upgraded with a new SDR.  Flights and Manila ground station are now both loud and clear.  Singapore better than what it was but still a bit of a struggle unfortunately.  The feed is also no longer shared with globaltuners so it's 8942 24/7.  smiley

 3 
 on: November 24, 2014, 09:19:22 PM 
Started by JohnN - Last post by JohnN
Hi John, yes it's possible to build your own antenna.  I copied this information from another thread:

*******
A quarter wave ground plane antenna is easy to make for less than $5.  You'll need a soldering iron and solder too.
Shopping list:
11 ft of 12awg solid wire(not stranded)
SO239 connector (Radio Shack No. 278-201)

Cut the wire into equal lengths of 23 inches
Insert one wire into center of the SO239 connector and solder it into place.
Make a loop in the other four wires and loop them into the four holes in the SO239 connector
Solder the four wires in place perpendicular to the center conductor wire.
NOTE: This will be about 70 Ohms.  Ideally you want 50 Ohms.  To get 50 Ohms you need to be at 135 deg from the center radial
Make a loop in the center conductor wire so you can hang it by string or rope. 

This is a great attic antenna and it works very well.  The 50 Ohm version is what I use for the KHSV feed.

Link to how to build it but use my wire lengths:
http://www.hamuniverse.com/2metergp.html

*******

I never tried this myself but I thought I'd pass it along.  I hope this helps...

Ron

Ok, so I got the connector a few weeks ago. I'm going to try making the antenna this weekend, but I have few questions. First, I see the connector takes PL-259 Coax, but I currently only have RG-6. Is there an adaptor I could use, or is my only option to buy some 259? My other question is, how important do you think height will be with this antenna? I don't really see any way I would be able to mount this on my roof, so I would have to either put it on top of the desk or in the attic. Do you think the extra height would be better, even with the extra coax?

 4 
 on: November 24, 2014, 07:27:33 PM 
Started by stonemin - Last post by martyj19
Let me just reemphasize this difference about being cleared from present position.  I think that is where you are stuck.

If radar is available, having been radar identified and confirming Mode C altitude, I might get "cleared present position direct Bullion VOR, V32, somewhere".

If radar is not available, I can't get cleared from present position.  I would be cleared starting at Bullion and then along airways.  I have to be in VFR conditions responsible for my own navigation and terrain clearance until I get to Bullion VOR at an altitude high enough for obstacle clearance and navaid reception (the Minimum Enroute Altitude) and then my flight can continue under IFR along V32 to somewhere.

 5 
 on: November 24, 2014, 03:03:19 PM 
Started by stonemin - Last post by swa4678
you said "Cleared fix..." is radar vector, and if aircraft should go some fix to join airway, What term should controller use?
No, I said that any IFR clearance that sounds like "Cleared to XYZ airport via direct FIX, airway 123, ..." etc. is a radar vector (present position direct to FIX) which wouldn't be possible. Instead, assuming they're even going to issue the pop-up IFR clearance at all, I'm guessing they would do one of two things:

1. Issue a VFR climb to the minimum safe altitude before giving the IFR clearance (which still won't be from "present position" - it will have to begin at some fix and utilize airways since radar separation can't be used).

2. Utilize section 4-2-8(d)(1) of the 7110.65:

Quote
1. Before issuing a clearance, ask if the pilot is able to maintain terrain and obstruction clearance during a climb to the minimum IFR altitude.

NOTE-
Pilots of pop-up aircraft are responsible for terrain and obstacle clearance until reaching minimum instrument altitude (MIA) or minimum en route altitude (MEA). Pilot compliance with an approved FAA procedure or an ATC instruction transfers that responsibility to the FAA; therefore, do not assign (or imply) specific course guidance that will (or could) be in effect below the MIA or MEA.

EXAMPLE-
“November Eight Seven Six, are you able to provide your own terrain and obstruction clearance between your present altitude and six thousand feet?”

The last part of the NOTE is where I was suggesting that the pilot would not be given any specific guidance on how to reach the first fix where the IFR flight begins; the pilot would need to maintain his own terrain and obstruction clearance while navigating to that fix (which might be direct, might be a curved path around terrain/weather, etc. etc.).

 6 
 on: November 24, 2014, 10:22:08 AM 
Started by RonR - Last post by RonR

A new KLGA feed is now up and running.  Thanks to Dave for all of his help!!

The setup consists of six radios tuned to a variety of KLGA frequencies.  The feed site is located about 4 air miles from KLGA with an antenna mounted on a high roof.  Aircraft on the ground at KLGA can easily be heard on both the GND and TWR frequencies!

A total of six feeds have been added; the frequencies are allocated like this:

KLGA Del/ARINC/TCA
  129.4      NY Arinc
  126.05    KLGA TCA
  135.2      KLGA Clearance Delivery
  121.875  KLGA Clearance Delivery (Helicopters)

KLGA Ground
  121.7    KLGA Ground
  121.85  KLGA Ground
  127.67  KLGA Ground

KLGA NY Approach (HAARP)
  120.8    NY Departure
  124.95  NY Approach

KLGA NY Departure
 120.4  NY Departure

KLGA Tower #1
  118.7  KLGA Tower

NY Approach (Liberty/North)
  118.175  NY Departure

Both sides of transmissions (ATC and aircraft) can be heard on all of the new feeds.  The original plan was to include one or two KLGA approach frequencies (namely 134.9 and 127.3) but as it turns out, for some reason (known only to the FAA gods) these two frequencies don't transmit out of KLGA so it didn't make sense to include them especially since these two freqs are already covered by someone else.

Enjoy!!

Ron

 7 
 on: November 23, 2014, 05:11:51 PM 
Started by IanV - Last post by 777lrf
Ian, I thank you for this feed. I have a question, I am not hearing anything from Gander Center or Halifax Radio. Is it possible to get coverage for the Atlantic crossing aircraft?

 8 
 on: November 23, 2014, 04:15:21 PM 
Started by 777lrf - Last post by 777lrf
One of the frequencies when airplanes transmit is an automated weather observation that keeps repeating itself and you can barely hear the transmissions.

 9 
 on: November 23, 2014, 04:01:09 PM 
Started by 777lrf - Last post by 777lrf
EKCH will be available in the future - just can't provide a date at this time.


Great thank you

 10 
 on: November 23, 2014, 04:00:08 PM 
Started by 777lrf - Last post by 777lrf
CYUL has an approach/departure section, and also CZUL which is supposed to be center. But all the transmissions I hear on CZUL are departures from CYUL airport.

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