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Utility Listening - Discussions regarding monitoring government, military, aircraft, ship, and other misc communications in the HF/MW/LF bands.

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Old 03-23-2017, 8:39 PM
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Default MWARA frequencies updated

I just got a note from user DeviceLab that he has done some extensive updating of our MWARA frequencies found in our wiki (link below); he's updated the NAT/CAR/CEP/CWP/NP/SP families. Thanks much DL...

Just by way of explanation, a group of frequencies associated with a particular MWARA area is referred to as a 'family'.

That data, along with the link below, will give the utility newcomers out there targets to tune for. All you need is a good receiver - even a portable will work - that is sideband capable, a good antenna and a few prayers to the propagation gods (heh)

MWARA - The RadioReference Wiki

The Btown Monitoring Post: Intl Aero HF Routed/Off Route Frequency List - Update 4 Dec 2016

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Old 03-24-2017, 3:04 PM
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Good stuff, thanks Mike. Only around the Pacific,Caribbean and Indian Ocean though. I suppose that's the area where ARINC are responsible. I have updated my MWARA xls list that suits my radio so if anyone wants a copy let me know on here.
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Old 03-24-2017, 5:02 PM
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Martin,

ARINC is only responsible for areas where the US has direct influence. ARINC works with the ICAO which coordinates the other frequencies around the world. (BTW, ARINC was purchased by Rockwell Collins in late 2013 so technically ARINC no longer exists.)

I was able to find information from 2013 ICAO documents online and have thus updated the MWARA wiki with that information. It confirms the INO, EA, SEA and SP families. This looks to be the latest information.
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Old 03-24-2017, 8:40 PM
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Quote:
(BTW, ARINC was purchased by Rockwell Collins in late 2013 so technically ARINC no longer exists.)
Interesting - there are an awful lot of wiring components on aircraft for which ARINC seemed to make the specifications - especially avionic stuff, connectors, trays etc. that I suppose Collins had to comply with if they wanted their equipment to be universally accepted. Bendix/King of course had to comply too but they seemed to drift away into the smaller 50-70 seat sized aircraft where the whole instrument was mounted on the panel rather than just a controller with the major unit in a separate rack, where Collins dominated the larger transport aircraft. Perhaps Collins want to control the standards....
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Old 03-25-2017, 8:36 AM
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Quote:
Originally Posted by devicelab View Post
ARINC is only responsible for areas where the US has direct influence. ARINC works with the ICAO which coordinates the other frequencies around the world. (BTW, ARINC was purchased by Rockwell Collins in late 2013 so technically ARINC no longer exists.)
Not exactly. Rockwell Collins is d/b/a ARINC.

The company responsible for aeronautical communications in US-regulated areas is ASRI. See the link below.

https://www.asri.aero/
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Old 03-26-2017, 2:11 AM
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Just an addition for the INO and SEA-3 families is the ground station Brisbane. Source - local listening!
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Old 03-26-2017, 9:34 AM
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I noted a typo in the Wiki.

NAT-A 5508 should be 5598. 5508 is San Francisco HFDL. Both per latest ICAO docs and HFDL Table 50.

When compiling a new list with the Wiki article as the seed and ICAO docs to round out details, I noted a lot of strange-looking double assignments. I'm sure some are due to certain assumptions about HF propagation. I also noticed that some of the Krasnoyarsk HFDL channels as announced in Table 50 are 1 kHz off the normal allocations.
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Old 03-26-2017, 10:28 AM
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Quote:
Originally Posted by DaveNF2G View Post
I noted a typo in the Wiki.

NAT-A 5508 should be 5598. ...
Fixed.

Hope this helps,
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Old 03-26-2017, 2:01 PM
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Nice work. Here are some questions.

I spent the past couple of hours integrating the new info into my frequencies.xml file for SDRSharp. While doing that, I noticed some apparent anomalies in the official data.

MWARA listings
5220 CAR-B (this frequency is totally isolated from any other MWARA blocks)
5485 RDARA-1B (nearest channel 5484)

HFDL Table 50
3900 REYKJAVIK (ham band)
6596 KRASNOYARSK (nearest channel 6595)
8886 KRASNOYARSK (nearest channel 8885)
15025 REYKJAVIK (this frequency is totally isolated from any other block)
17912 KRASNOYARSK (nearest channel 17913)
21990 KRASNOYARSK (nearest channel 21991)

I have only done Atlantic and Pacific updates so far. Europe, Africa, Middle East to go. In fact, the other areas' data could account for the apparently isolated channels I found.
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Old 03-29-2017, 6:22 PM
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Quote:
Originally Posted by QDP2012 View Post
Fixed.
Yep a typo on my part. Old fingers I guess.
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Old 03-29-2017, 6:24 PM
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Quote:
Originally Posted by DaveNF2G View Post
MWARA listings
5220 CAR-B (this frequency is totally isolated from any other MWARA blocks)
Another typo. Fixed.
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Old 06-22-2017, 12:06 PM
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There's quite a lot of missing freqs from the list but I appreciate the author may not be an aero nut so that could be why. I listen to the HF aero bands a lot and can add the following freqs. I'm uncertain on the official area code designation for some of them and the info doesn't seem to get published anywhere either (at least not in recent years).

For the NAT, Shanwick now has RDARA freqs at their disposal in addition to the main MWARA ones. These are used on a as-and-when-required basis by Shanwick ONLY :

RDARA NAT-H
2965 3491 (also shared with Santa Maria), 5583 6556 6667 (also shared with Santa Maria), 10021 10036 11363

RDARA NAT-I
2860 2881 2890 3458 3473 (shows in list for NAT-J as well), 3488 5484 5568 6550 6595 10066

RDARA NAT-J
2869 2944 2992 3446 3473 (shows in list for NAT-I as well), 4651 4666 4684 5460 5481 5559 5577 6547 8843 8954 11276

I notice you don't show Africa on the wiki and perhaps for good reason as it's extremely hard to figure out what the situation is there these days. I have noted activity on the following :

5517 AFI-4 Mogadishu (night time). Seems to be the night freq equivalent of 11300
8873 Niamey
8888 N'Djamena
8894 Algiers, Niamey, Nouckchott
8903 Brazzaville, Accra, Niamey
11300 AFI-4 Mogadishu, Khartoum, Cairo, Tripoli, Seychelles, Asmara, Addis
13288 AFI-4 Mogadishu

In the South Atlantic you are missing 6649 and 10096 which are Atlantico's night and day primary freqs . Recife radio doesn't exist by name - they have been called Atlantico for as long as I can remember.

In the Indian ocean on INO-1 (Arabian Sea) you have freqs 3476 5658 6661 8879 10018 10084 with Mumbai on all. 5658 and 10018 also see Delhi, Karachi and Kabul and I've heard all 4 stations recently. On 8879 you also have Brisbane, Seychelles, Beira and Sana'a - again all heard recently. 8909 is also Mumbai for Indian AF, Navy and Coastguard, and also serves as secondary freq for Chennai military on 8861 (see below).

On the other side in the Bay of Bengal in the current freq use is :

Kolkata : 3485, 6556, 10066. I don't know about 13318 and 17907 but Kolkata doesn't use 3470, 5670, 6556 or 11285 !

Chennai & Colombo : 3470, 5670, 11285 (dunno about higher freqs, never heard them used)

The Indian AF, Navy and Coastguard use 8861 exclusively, mainly working Chennai but Port Blair and Kolkata can also be heard infrequently. 8861 is also used primarily for flights to and from Port Blair to/from the north. 8909 is the daytime back-up freq for the military.

The current SEA-2 freqs for the South China Sea changed a couple of years ago. All of Singapore FIR to Vietnam is now covered by long range VHF. The only flights you'll hear working Singapore are the ones to the Philippines and East Malaysia. Pretty much everything is on 6556 with only the occasional flight on 8942 if they are unreachable on 6556. Manila uses 8942 primary and 5655 secondary. You never hear them on any of the lower or higher freqs listed.

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Old 06-26-2017, 8:45 PM
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Great updates...Thank you.
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