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Author Topic: Gloucester angry bahstad fishermen 6212 USB 2325 UTC 16 Jul 2019  (Read 532 times)

Offline ChrisSmolinski

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Back on 6212, I have heard them here before fairly often, seems to be one of their popular frequencies.
Chris Smolinski
Westminster, MD
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Offline R4002

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Interesting.  Have you noted any identifiers of any kind when hearing these guys?  I've only listened to them a handful of times and no callsigns have been heard.  FWIW, 6212 kHz is ITU 6 MHz marine channel 605.  It's listed as a duplex frequency (for ship-to-shore anyway, paired with 6513 kHz...with 6212.0 kHz being the "ship transmit" frequency).  With that in mind, it makes sense for them to use it as a simplex frequency for ship-to-ship comms.  Apparently this is pretty common practice.  Since their SSB radios likely came pre-programmed with all the ITU marine frequencies out of the box, that would also make sense. 

My bet is 6212 USB is their official or home channel, and the various other 6 MHz frequencies we've monitored them on are side channels, "secret channels", alternate frequencies, etc. etc.   As I mentioned in the other thread, during my recent visit to Gloucester, MA, I did notice many of the fishery buildings had HF antennas on their roofs.  Maybe 6212 is their "company channel" and the other frequencies are used so the boss-man and/or other ships in their fleet can't listen in? 

As an aside, the majority of ITU marine frequencies (channelized HF marine band plans for 2 MHz, 4 MHz, 6 MHz, 8 MHz, 12 MHz, 16/17 MHz, 18/19 MHz, 22 MHz and 25/26 MHz) involve duplex pairs.  Only the following frequencies are explicitly designated for simplex ship-to-ship or ship-to-shore use - specifically SSB voice:

2 MHz (2000 kHz - 2850 kHz) marine band:

2003.0 kHz
2065.0 kHz
2079.0 kHz
2082.5 kHz
2086.0 kHz
2093.0 kHz
2096.5 kHz
2142.0 kHz
2203.0 kHz
2214.0 kHz
2635.0 kHz
2638.0 kHz
2738.0 kHz
2782.0 kHz
2830.0 kHz

4 MHz (4000 kHz - 4438 kHz) marine band:

4146.0 kHz
4149.0 kHz
4417.0 kHz

4000 kHz to 4060 kHz are also designed for simplex maritime radio use, in 3 kHz steps (4000 kHz, 4003 kHz, 4006 kHz, etc.), shared with fixed/mobile service

6 MHz (6200 kHz - 6525 kHz) marine band:

6224.0 kHz
6227.0 kHz
6230.0 kHz
6516.0 kHz

8 MHz (8000 kHz - 8815 kHz) marine band:

8294.0 kHz
8297.0 kHz

8101 kHz to 8191 kHz are also designed for simplex maritime radio use, in 3 kHz steps (8101 kHz, 8104 kHz, 8107 kHz, etc.), shared with fixed/mobile service

12 MHz / 13 MHz (12330 kHz - 13200 kHz) marine band:

12353.0 kHz
12356.0 kHz
12359.0 kHz
12362.0 kHz
12365.0 kHz

16 MHz / 17 MHz (16460 kHz - 17360 kHz) marine band:

16528.0 kHz
16531.0 kHz
16534.0 kHz
16537.0 kHz
16540.0 kHz
16543.0 kHz
16546.0 kHz

18 MHz (18780 kHz - 18900 kHz) marine band:

18825.0 kHz
18828.0 kHz
18831.0 kHz
18834.0 kHz
18837.0 kHz
18840.0 kHz
18843.0 kHz

22 MHz (22000 kHz - 22855 kHz) marine band:

22159.0 kHz
22162.0 kHz
22165.0 kHz
22168.0 kHz
22171.0 kHz
22174.0 kHz
22177.0 kHz

25 MHz (25070 kHz - 25121 kHz)

25100.0 kHz
25103.0 kHz
25106.0 kHz
25109.0 kHz
25112.0 kHz
25115.0 kHz
25118.0 kHz

I put together the list above as these frequencies are also likely to be pre-programmed in MF / HF SSB marine radios, in addition to the dual-use duplex/simplex channeling (3 kHz steps for SSB voice, except odd steps on 2 MHz band).  It should also be noted that many older-generation SSB marine radios do not cover the higher bands.  Many radios only cover up to 12 MHz / 13 MHz or 16 MHz / 17 MHz. 
« Last Edit: July 17, 2019, 1333 UTC by R4002 »
U.S. East Coast, various HF/VHF/UHF radios/scanners/receivers

Offline ChrisSmolinski

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I have never heard any IDs of any sort. It always seems to be the same two guys.

I searched for my previous logs of them and moved what I could find here to the Peskies board to keep them organized.

The other day they were on 6870 USB, which I do not seem to have heard before. I find them in the 6 MHz area, but that is because I mostly hang out in that part of the spectrum, so I don't know if they operate elsewhere, like lower frequencies.

I think I have heard them when I know the band was not open for NVIS, so perhaps that implies they are within ground wave range of each other?

I have heard them at all times of the day.  I always run across these guys after the QSO has already started, so I don't know how they get in touch with each other to know to listen - the shrimpers that used to operate on 6925 used a selective calling system, I went so far as to figure how how it was encoded and even worked on writing an encoder for it :) 
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
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Offline ChrisSmolinski

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Speak of the devil, there they are on 6212 USB at 2005 UTC
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
NRD 545 / netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop

Offline R4002

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I have a feeling they’re within groundwave range of each other too, considering the time of day they’ve been heard.  Maybe they’re right outside of regular old VHF marine band range, or maybe they don’t want their conversations on the regular VHF marine band. 

Interesting about the selcall use on 6925 kHz....I wonder where those guys are now!  Maybe they’re up above 40 meters.  There’s a lot of Spanish speaking traffic (in both USB and LSB) in the 7300 kHz to 8000 kHz range, peppered in-between broadcast signals and other stuff...then up into the legit 8 MHz marine band. 

So we know they use 6212, 6095, 6870 and a couple frequencies in the 69xx range too, right?  I remember hearing fishermen with New England accents on 6953 kHz and 6959 kHz...not sure if they were the same guys though.  Considering the sheer number of antennas you can see in Gloucester harbor alone...there’s gotta be other users on HF. 

Before I visited Gloucester I visited Portland, Maine and took a tour on a lobster boat.  Being a coastal-only boat they were only VHF / VHF-DSC equipped.  I spoke with the captain about radio stuff, he remarked how his fleet’s bigger boat had a “long range SSB radio” (HF) in addition to VHF radios.  The Portland harbor had countless HF and VHF antennas on both the fishing vessels and fishery buildings on-shore.  VHF channel 16 was very active...the Coast Guard would often tell vessels to switch channels if they started actually having a QSO on VHF 16. 

Too bad the Glocestermen aren’t using SELCALL or another system that we could ID them with.  I bet they are using driftnet radio buoys or fishnet radiobuoys...maybe a listener closer could hear their low-power signals (assuming they’re using ones in the 1600 to 4000 kHz range and not the 26 to 30 MHz range or SATCOM based).

U.S. East Coast, various HF/VHF/UHF radios/scanners/receivers

Offline ChrisSmolinski

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They're back on 6212 now (1218 UTC) with strong signals. Same two guys.

Off 1233 UTC.
« Last Edit: July 18, 2019, 1233 UTC by ChrisSmolinski »
Chris Smolinski
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eQSLs appreciated! csmolinski@blackcatsystems.com
NRD 545 / netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop

Offline R4002

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Maybe there's a loose connection between when they're on the radio and which frequency they're using.

There's gotta be some method to this madness...
U.S. East Coast, various HF/VHF/UHF radios/scanners/receivers