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Logan Airport ARINC Trunk - Need to ID talkgrounps

wonka

wonka

Member
Location
Boston, MA
There are MANY Airlines using this trunk, since the FCC only having Delta, United, Alaska, AA, jetblue registered @ logan, all other airlines (especially Terminal E) should be using this trunk. I am going to try to track this trunk as much as I can, but I only have SDR instead of a Much better DMR Tier II scanner like Uniden BCP43HP.

Company: AERONAUTICAL RADIO INC (ARINC) (A radio communication service provider @ logan)
Callsign: KNEH682
HT Device: Mototrbo XPR 7380e, 800Mhz, as seen used by Virgin Atlantic @ Terminal E
System: DMR Capacity Plus
Usage: Terminal E Airlines and smaller Airlines in other terminals
Repeater Frequencies:
856.8875
857.8875
858.8875
859.8875
860.3375
860.8875
 
ecps92 said:
And had been identified as Conventional not a trunk (circa 2019) with only 860.8875 active
What Freq are you getting as a Control Channel ?
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I am still investigating this system, that is why I did not submit confirmed data for it. I will try to scan them again this week, I post this because it should be used by many companies at Logan, and since I do not have a Uniden scanner, using SDR to track DMR trunk is kind of hard.

The reason why I suspect this system being a Trunk is that:
1. I have personally seen Virgin Atlantic using XPR 7000s radios, I use both spectrum analyzer, SDR, and the close call capture on my HT, to find their transmitting frequencies, however, I can't get them in the 400-500 UHF range (most business radios at 450-470) at all. I just sit there for hours and wait for them to transmit, but obviously they are not in the 400Mhz band.
The XPR 7000s radio has VHF, UHF 400, and UHF 800s. There is no VHF business radio @ Logan according to the FCC. UHF 400 range has only Delta, United, Alaska, AA, JetBlue, Japan Airlines, Southwest Airlines, British Airways registered @ Logan. So the only thing left, is the 800Mhz radios, which is XPR 7380e. On the entire 800Mhz range @ Logan, there is only American Airlines, and some public safety agencies, and the subject here, the ARINC.

2. From last point, I can conclude that all airlines other than Delta, United, Alaska, AA, jetblue, is using this ARINC company's radios. Since there are so many airlines that are using this, if it is only one active frequency in repeater mode as seen @ SNE Wiki, the frequency will be super busy and often occupied, which will become unusable for airlines (which from my observation of Virgin Atlantic, this is not happening).

3. Radioreference.com categorize ARINC as a Trunk u sed by different airlines with different talkgroups, but it is very old information that did not get updated.
 
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I just went to confirm today on this system, and here is what I found:

The system is now a Cap+ Trunked system, with two active Frequencies:
857.8875 LCN1 LSN1/2
858.8875 LCN2 LSN3/4
CC1
TG10 - Virgin Atlantic
TG50 - Unknown Airline, need to ID
There could be some more TGs than this, but this is the only two that shows up from 19:00 - 22:00.

The other 4 frequencies are not active or in use, and I will go and confirm on these information again tomorrow.
 
I can just barely receive this system. I may throw up a better antenna next week.
I see additional talkgroups of 30 and 100. No idea what they are for.
It is Site 1 Cap+, which may not mean that it is linked with another site. I have seen Site 1 of linked cap+ that were not linked.

I looked back in my notes from 2013 and found Air Lingus, Air Canada Jazz, and Japan Airlines on the system when it was a Motorola Type 2 system.
 
wb1hbu said:
I see additional talkgroups of 30 and 100. No idea what they are for.
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I just looked at my records and I just found 100 is also in there, they talk in Spanish, something about making an announcement at the gates.

And I look at all of the audio recording I have heard from the system, I think the system is kind of a mess, TG10 is used by Virgin Atlantic for sure, but it seems that they are mixing a lot of departments into this same TG, the ramp, the baggage, the gate, the checkin. TG50 is unidentifiable for me, not a very good listener, but it seems that they call for mechanics guy for maintenance at Lavatory @ Terminal E, also some calls about having the crew come down?

wb1hbu said:
It is Site 1 Cap+, which may not mean that it is linked with another site. I have seen Site 1 of linked cap+ that were not linked.
Click to expand...
From my observation, the other 4 frequencies are not in use ( I monitor for 15 mins on 2 days inside Logan), there shouldn't be additional channels or sites for this system.

wb1hbu said:
I looked back in my notes from 2013 and found Air Lingus, Air Canada Jazz, and Japan Airlines on the system when it was a Motorola Type 2 system.
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Japan Airlines has their simplex talking frequencies now on the FCC with 4w transmit power, I think that would be enough for their operation I guess. But the problem here being that, where are other airlines @ Logan?

Airlines that do not have their own frequencies (FCC database 150-900MHz):
Air Canada
Spirit
Aer Lingus
Air Portugal
WestJet
And ALL airlines in Terminal E except for Japan Airlines, British Airways, Virgin Atlantic, Delta, Jetblue International.

Like, there are so many of them, how can they survive without radios?

I am suspecting that at lease a lot of Terminal E airlines are using the ARINC radios, but where are all others? Especially larger ones like Spirit, Air Canada?
 
So Aer Lingus and Jet Blue share services at Logan. While operating their own ticket and gates, other operations are shared. I would not be surprised if you found out they also use Jet Blue's DMR T3 Trunk now.
 
W1KNE said:
So Aer Lingus and Jet Blue share services at Logan. While operating their own ticket and gates, other operations are shared. I would not be surprised if you found out they also use Jet Blue's DMR T3 Trunk now.
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Good to know! I guess that could also be the case with Air Canada? It could share service with United since they are partners with United. Just like Virgin Atlantic share services with Delta. I guess the only large company left here, is Spirit. I never took their flights before so I have no chance of noticing if they even use a radio at all.
 
I haven't had the opportunity to listen from around Logan in a few months, but from my notes I have TG 2 as most likely Air Canada Jazz (their regional carrier).

I have Spirit and mainline Air Canada on a separate One Frequency Trunk run by ARINC, 860.8875 Color Code 5. I have Air Canada as TG240 (unk timeslot) and Spirit as TG 71 (unk timeslot). The 436 and SDS100 had the signal as a conventional DMR rather than a Cap+ and the talkgroups never showed up on the known frequencies from the Cap+ system. I may be able to go back up this week and reconfirm this.
 
OceanNora said:
I haven't had the opportunity to listen from around Logan in a few months, but from my notes I have TG 2 as most likely Air Canada Jazz (their regional carrier).
Click to expand...
I have not heard any TG 2 in this system somehow.

OceanNora said:
I have Spirit and mainline Air Canada on a separate One Frequency Trunk run by ARINC, 860.8875 Color Code 5. I have Air Canada as TG240 (unk timeslot) and Spirit as TG 71 (unk timeslot). The 436 and SDS100 had the signal as a conventional DMR rather than a Cap+ and the talkgroups never showed up on the known frequencies from the Cap+ system. I may be able to go back up this week and reconfirm this.
Click to expand...
I also scanner for this frequency for multiple times with around 10 minutes each on my SDR, it seems no traffic is found. I don't quite know if they turn it off or it is too little traffic and I did not track for long enough. Or maybe it is just the problem of SDR. I have a chance to visit Logan this Thursday and it is probably the last chance I am able to confirm anything before coming back to Boston 5 months later.
 
I've noticed a lot of the airlines don't use their radios as much as we would think, I'll try leaving my scanner on it for hopefully a few hours tomorrow. Particularly with the international airlines that use ARINC, they may only have a few flights a day if that so traffic is sporadic.

For the ARINC Cap+ I also have the following older finds that I'll have to reconfirm:

3 - Japan Air Lines

30 - El Al

32 - Emirates

50 - British Airways
 
I am back in Boston now, and from my understanding and seen the operations in Terminal E recently, I have seen some ground staff are using the Motorola LTE Wave TLK100 (As seen in Turkish Airlines) , so many of the old talkgroups ( like 3, 30, 32 ) may just be no longer in use anymore. The trunk is slowing being abandoned I am guessing.
 
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