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Old 01-29-2011, 11:43 AM
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Default 461.175 - Who could it be? - Boston Mass

461.175 R - PL 192.8 - Tufts University in Medford - meter maids week days - shuttle vans at night

461.175 R - DPL 023 - "open Door 1" - "testing the Shuttle radio"

461.175 - DPL 465 - 1 click

461.175 R - DPL 732 - 2 guys - running a sidewalk plow maybe - "go up to the main entrance" - "go down to the shop"

All signals seem to be strong to me - heard in the last 2 days

Anyone know who the DPL guys are? Anyone know if they are MetroWest, North Shore, South Shore, or Downtown?

Peter Sz

Last edited by zerg901; 01-29-2011 at 11:45 AM.. Reason: added Shuttle
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Old 01-29-2011, 11:54 AM
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FCC Frequency Lookup
Frequency = 461.175
State = Massachusetts

Callsign - User - Town - County - State
KNAF897 -UNIVERSITY OF MASSACHUSETTS AMHERST HAMPSHIRE MA
WPTN602 -Massachusetts Water Resources Authority BOSTON SUFFOLK MA
WPTE405 -Boston Properties Boston SUFFOLK MA
WPTE241 -THE FLATLEY COMPANY BRAINTREE NORFOLK MA
WQAY917 -Mass Mutual Life Insurance Co Cambridge MIDDLESEX MA
WPTN602 -Massachusetts Water Resources Authority CLINTON WORCESTER MA
WPRA508 -TUFTS UNIVERSITY MEDFORD MIDDLESEX MA
WNHL650 -NOBADEER NANTUCKET CORP NANTUCKET NANTUCKET MA
WQAI684 -BRISTOL MYERS SQUIBB NORTH BILLERICA MIDDLESEX MA
WPSM800 -Kiewit Corp SOUTH BOSTON SUFFOLK MA
WPEZ867 -HARRINGTON MEMORIAL HOSPITAL SOUTHBRIDGE WORCESTER MA
WQAY917 -Mass Mutual Life Insurance Co Springfield HAMPDEN MA
WPTN602 -Massachusetts Water Resources Authority WARE HAMPSHIRE MA
WPTC968 -EMC Corporation Westboro WORCESTER MA
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Old 01-30-2011, 8:25 AM
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461.175 R - DPL 732 - snow blower operations now - at 922 AM Sunday morning - at least 2 guys are using this DPL - mention of a parking lot

461.175 - DPL 465 - 750 AM approx - "got your radio?"

461.175 - DPL 023 - "Security, open Bay 1" - 904 AM Sunday morning

I suspect that all 3 DPLs are being used on the same repeater and at the same site / campus / complex

I get them loud and clear whoever they are. Anyone else hear them?

Peter sz
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Old 01-30-2011, 9:56 AM
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FCC Licenses for 461.175 in the State of Massachusetts

Licensee Frequency Callsign Stat City County Svc
Mass Mutual Life Insurance Co 461.17500000 WQAY917 A Springfield HAMPDEN IG
UNIVERSITY OF MASSACHUSETTS 461.17500000 KNAF897 A AMHERST HAMPSHIRE IG
Massachusetts Water Resources Authority 461.17500000 WPTN602 A WARE HAMPSHIRE IG
BRISTOL MYERS SQUIBB 461.17500000 WQAI684 A NORTH BILLERICA MIDDLESEX IG
TUFTS UNIVERSITY 461.17500000 WPRA508 A MEDFORD MIDDLESEX IG
Mass Mutual Life Insurance Co 461.17500000 WQAY917 A Cambridge MIDDLESEX IG
NOBADEER NANTUCKET CORP 461.17500000 WNHL650 A NANTUCKET NANTUCKET IG
THE FLATLEY COMPANY 461.17500000 WPTE241 A BRAINTREE NORFOLK IG
STEPHENS, BRIAN M 461.17500000 WNSH594 T HANOVER PLYMOUTH IG
Kiewit Corp 461.17500000 WPSM800 A BOSTON SUFFOLK IG
Boston Properties 461.17500000 WPTE405 A Boston SUFFOLK IG
Massachusetts Water Resources Authority 461.17500000 WPTN602 A BOSTON SUFFOLK IG
Kiewit Corp 461.17500000 WPSM800 A SOUTH BOSTON SUFFOLK IG
HARRINGTON MEMORIAL HOSPITAL 461.17500000 WPEZ867 A SOUTHBRIDGE WORCESTER IG
Massachusetts Water Resources Authority 461.17500000 WPTN602 A CLINTON WORCESTER IG
EMC Corporation 461.17500000 WPTC968 A WORCESTER IG
L AND J OF NEW ENGLAND INC 461.17500000 WPES492 T WORCESTER IG
EMC Corporation 461.17500000 WPTC968 A Westboro WORCESTER IG


FCC Data Last Updated On: 01-03-2011 16:37
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Old 01-30-2011, 10:31 AM
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They seem to be talking about once an hour today. I think that Dan, Ed, and Andrew are blowing snow around the "sign in front" along the road. I have put 466.175 in a scanner also to see if I hear anything on the input. Peter sz
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Old 01-30-2011, 10:47 AM
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Definitely the same site using various DPLs and channels

Heard at 1140 AM

DPL 732 - have them open Bay 1 for the wheelbarrows

DPL 023 - Front desk, open Bay 1 please

DPL 732 - the door is not opening - go to Ch 4 and ask him to open it

nothing more heard

-------

DPL 023 - all set with Bay number 1, thank you - 1147 AM - all set with Bay 1 (ie - you can close it)

Sooner or later these guys are going to say something that will give away their location. They did mention that there are several pizza shops nearby. They probably narrows it down to somewhere east of the Connecticut River. :-)

http://wireless2.fcc.gov/UlsApp/UlsS...licKey=2627254 - it might be these guys in Billerica

Last edited by zerg901; 01-30-2011 at 10:54 AM.. Reason: 1 more message - added URL
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Old 02-07-2011, 4:25 PM
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Today on 461.175 R DPL 023 they were talking about the "check processing area" - I think there was an injured bird there - the Animal Rescue League showed up later, and they requested a large cardboard box from the mtnce staff.
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Old 02-19-2011, 8:56 AM
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461.175 R - DPL 732 - 2 guys talking - 950 AM Saturday - turn on the lights at SW 2nd floor for an employee who is coming in to work today - perhaps this is not a 24/7 operation (except for the guard and mtnce guys)

461.175 R also had Tufts shuttle last night
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Old 02-23-2011, 8:00 AM
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TEMS (student EMTs) were conducting training on 461.175 R PL 192.8 the other night
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Old 02-23-2011, 12:32 PM
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Sounds like it is a shared repeater for the Tufts University. In all likelihood, they are using one repeater with open-PL/DPL, so it is probably just passing all traffic through it regardless of the input tone, but it would be passing the tone onto the output as well.

Not sure what kind of scanner you are using but your best bet would be to set up some kind of recording software that logs freq, tone, and date/time. Then go back and listen through an entire day to see how things are coordinated. I have a BC246T and use the 246T Audio Recorder to record stuff like this, and it puts every transmission into a separate wave file labelled with freq/tone. Then you can set up folders for each freq/tone combo and keep track of what kind of things are said on each channel. But before you split them up into separate folders, listen to them all in time-sequential order so you can hear when they say, "Switch to channel four", which freq/tone is channel four. Eventually you'll determine their entire channel plan and how they use their radio system.

I have seen something like this before. There's a big warehouse/trucking depot in OKC that has one repeater with 5 DPLs. It's not a priority system (no public safety) so if several people talk at the same time over different "channels", they probably just talk over each other on the repeater and don't realize what happened. But for a small university, they may rarely ever talk over each other.
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Old 03-03-2011, 9:41 AM
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3/3/2011 - 720 AM - Fred is "security" - 461.175 R - DPL 023 - 2 bars out of 5 bars

When I hear Tufts University - they are 5 bar out of 5 bar IIRC

Therefore - it seems that the DPL folks are further away fro me than Tufts University - Tufts Univ is only about 3 miles from me - on the other side of my bld though
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Old 03-10-2011, 10:38 AM
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Wednesday March 9 2011

461.175 R - DPL 465 - 1 of the elevators in the lobby has grease on it - OK I will take care of it - 3 PM

461.175 R - DPL 732 - mention of Royal Battery on Eastern Ave in Malden - 515 PM

461.175 R - DPL 023 - Johnny, UPS is in the loading dock
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Old 03-10-2011, 9:43 PM
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May I ask why you are so obsessed with this frequency?
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Old 03-11-2011, 7:26 AM
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Quote:
Originally Posted by CoolCat View Post
May I ask why you are so obsessed with this frequency?
There are multiple users on one frequency and none of them are identified. It's not an obsession, it's a hobby. It's the fun of identifying the unknown. Some people really enjoy it. I happen to be one of them.
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Old 03-11-2011, 4:05 PM
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Perhaps the individual tones are unverified, but we already know who uses this frequency.
Quote:
Originally Posted by CoolCat (in Post #2 of this thread) View Post
Frequency = 461.175

Callsign - User - Town - County - State
KNAF897 -UNIVERSITY OF MASSACHUSETTS AMHERST HAMPSHIRE MA
WPTN602 -Massachusetts Water Resources Authority BOSTON SUFFOLK MA
WPTE405 -Boston Properties Boston SUFFOLK MA
WPTE241 -THE FLATLEY COMPANY BRAINTREE NORFOLK MA
WQAY917 -Mass Mutual Life Insurance Co Cambridge MIDDLESEX MA
WPTN602 -Massachusetts Water Resources Authority CLINTON WORCESTER MA
WPRA508 -TUFTS UNIVERSITY MEDFORD MIDDLESEX MA
WNHL650 -NOBADEER NANTUCKET CORP NANTUCKET NANTUCKET MA
WQAI684 -BRISTOL MYERS SQUIBB NORTH BILLERICA MIDDLESEX MA
WPSM800 -Kiewit Corp SOUTH BOSTON SUFFOLK MA
WPEZ867 -HARRINGTON MEMORIAL HOSPITAL SOUTHBRIDGE WORCESTER MA
WQAY917 -Mass Mutual Life Insurance Co Springfield HAMPDEN MA
WPTN602 -Massachusetts Water Resources Authority WARE HAMPSHIRE MA
WPTC968 -EMC Corporation Westboro WORCESTER MA
To each his own I guess. Have fun.
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Old 03-12-2011, 7:58 AM
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Not really, we would only know who is ''Currently Licensed'' and what if the Licensee was an FB6, then you only know the Repeater Owner not the user. There are many still operating with Expired Licenses too

There are plenty of folks [Peter is one] who will spend time searching out the elusive Business Band. Public Safety is the easy one. Try and ID a business band user on an Itinerant channel or someone who arrives in your area with Nationwide License.

Yes each to our own

Quote:
Originally Posted by CoolCat View Post
Perhaps the individual tones are unverified, but we already know who uses this frequency.


To each his own I guess. Have fun.
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Old 03-14-2011, 11:53 AM
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If people can give a listen to 461.175 from the North Shore or South Shore, that might help me pin down where these DPL guys are located. The prime candidates seem to be North Billerica, the Pru in Boston, or Flatley in Braintree. (Maybe Mass Mutual Life in Cambridge - I just noticed that listing). They dont talk very much - so this might be more work than it is worth. Peter Sz
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Old 06-30-2011, 1:11 PM
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These guys are busy today. It might be a 3 story bld in Everett.
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Old 07-08-2011, 9:53 AM
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461.175 R - DPL 732 - 6 AM this morning - "put cones out on West" - West parking lot I presume

Wow this really narrows it down!
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Old 07-14-2011, 8:50 AM
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From what you've stated, it sounds as though your listed frequency that you hear is for Tufts University in Medford- has at least 4 pizza places on Boston Av. right behind Tufts, has day-to-day operations with regard to EMT's, parking, security and general maintenance. As far as transmissions that are at 2 bars versus 5...those units may be on "direct" meaning that they are not going through the repeater- since your are 3 miles away, this may be a possibility.
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