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Messages - R4002

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511
Indeed.  That seems to be the best time.  Most of the short video clips I’ve uploaded to the official R4002 YouTube channel involving NOAA WX VHF DX were recorded between 6:40am and 7:00am local time (while I’m driving to work).

https://m.youtube.com/user/R4002/videos


512
I’ve heard music on several of the legal CB channels and freeband frequencies, namely 26.915 AM and 27.555 USB.  Both of those could be considered jamming as the frequencies were active at the time.

I wouldn’t worry about being tracked down, unless you’re jamming channel 19 or a local CB net/local standby channel with nonstop music...long enough for somebody to DF you.

513
Virginia House Radio 107.7 FM pirate station Richmond, VA

Tuned back in around 1710 UTC, they were relaying the local NOAA Weather Radio station...several seconds of silence then a DJ ID around 1711 UTC or 1712 UTC - Virginia House Radio Richmond Virginny, a slight pause and into more good ol’ time music.

Still sounding good in downtown Richmond at 1717 UTC.  107.7 FM on the factory Chevrolet car radio and antenna. 

514
Probably a contractor.  There's a large construction project in the same part of town where I work (its nearly finished).  A year or so ago when there were large numbers of dump trucks and other vehicles milling about, I glanced into the cab of one of the dump trucks and saw it was on CB channel 34.  CB is the common denominator on these work sites where you have different companies coming and going to a work site or quarry.  It's a lot easier than outfitting everyone with a radio for a specific business band frequency.  Plus, most trucks already have a CB!



 

515
Since most export radios start at 25.615 MHz that gives you the majority of the 11m broadcast band to work with.   I've heard the guys playing music inside the CB band and just above or below the CB band...but as far as 25/26 MHz goes, the only traffic I've heard has been hunters, truckers outside the CB band and Latin American taxi dispatchers.  When the band is open, the 25615 + range is full of ladies speaking Spanish (generally reading numbers) to taxi drivers in AM mode.  The dispatchers often have a distinctive roger beep, maybe to serve as a form of identification for a certain taxi company's drivers.  The A and B bands (25615-26055 and 26065-26505 respectively) seemed to be the busiest areas.  I've heard them inside the CB band before too and on 27515 AM as well as several other freqs above channel 40.

With sporadic-E I don't think you'd have to worry about too much taxi dispatcher QRM in the 25.615 to 26.105 MHz (or 26.100 MHz) region as far as using that for broadcasting goes.  26105 AM / 26.105 MHz is a popular freebander trucker frequency though, so maybe avoid that one.  The "A" channels 25645, 25695, 25745, 25795, 25845 and 26095 might be better bets.   I still like the idea of using 26925 though :D

I like the idea of broadcasting on 11 meters, especially when the band is open, you have the possibility of freebanders becoming "accidental listeners" by coming across your broadcast while tuning around the 11 meter band. 

516
There's a quarry about 30 miles to the west of me (right off Interstate 64) that uses CB channel 23 / 27255 AM to talk to the various dump trucks coming in and out of the quarry.  The dispatcher or guard shack either has a really nice antenna and/or some power because they're nice and loud for several miles in each direction before you're right next to the quarry.  Various trucks could be heard talking to the dispatcher about loads and places in line with other trucks. 

You might have stumbled upon something similar. 

517
They were still going strong with some Johnny Cash "One Piece At A Time" this morning at 1050 UTC / 0650 local time tune in.  No call letters heard at TOH or BOH.  I listened to them for a bit on my PL-606 portable in the backyard last night and they are transmitting in mono.  Overall a good sounding signal, pretty wide though.   There was a translator for WLES-AM on 107.9 that recently changed frequencies, so the closest in-market station is now WBBT-FM on 107.3 MHz.   Tuning around this morning revealed a dead carrier on 107.9 MHz, or the 107.7 station is wide enough to quiet the receiver on 107.9 MHz (this is on the car AM/FM radio).  On the PL-606, 107.8 and 107.9 are quiet like there's a dead carrier there.

518
NOAA Weather Radio audio loop from tune-in (at 2015 UTC) until 2130ish UTC, OM DJ came on with Happy House Radio Richmond Virginny ID, a couple false starts, banjo music, then more DJ talk about good ol’ mountain music...music continuing at 2138 UTC.

Received on the car radio.  “Patty On The Turnpike” at 2139 UTC. 

Driving around downtown and the signal is jumping up and down but it’s still sounding quite nice at 2146 UTC. 

SIO 555 downtown!

ID as “Commercial Free Virginia House Radio...relics from the past, country and non-country” at 2148 UTC.
107.7 FM downtown Richmond.

“That Knotty Old Cane” at 2153 UTC.

more old style country/bluegrass to 2203 UTC.

Checked again at 2300 UTC and bluegrass was still going strong.

519
Utility / Re: Aviation logs.
« on: August 07, 2019, 1919 UTC »
Nice logs, Looking-Glass. 

Shannon Radio on 5505 kHz USB / 5.505 MHz USB is an exception catch via long-path. 

520


I had to tune to the .25 kHz offset to hear both stations correctly, so it does not seem to be a case of one radio being off?

Nothing heard today at all, I was recording both 60m and 49m. Maybe they took the day off. Or there are some other frequencies we don't know about.

I have a suspicion about how they get in touch with each other. I *think* each guy listens to a particular frequency, and if anyone wants to talk to him, they call him there. Not 100% sure yet, but it seems that way.

That makes sense...especially if they’re running more than one HF radio in the wheelhouse, with the secondary radio standing by on “their” channel...probably with the squelch turned up just a little bit.  Wanna talk to Captain X? Tune to channel/frequency X at a certain time and whistle into the mic / call the guy’s name etc. 

There are probably dozens of these “side channels” or “sidebands” in use, if this is the operating procedure.  Considering the memory capacity of modern HF SSB marine radios, it could be easily done.

I still think at least some of these guys are using HF for quasi-NVIS types of communications.  The VHF marine band is busy in all of these coastal New England towns too.  I imagine the idea of having a “private channel” for general chit chat is quite appealing to these ship captains.

When I was in Portland, Maine and Gloucester, Mass. last month it was readily apparent that the vast majority of fishing vessels had multiple MF/HF antennas and often 4-5 VHF antennas.  The nicer looking ones had what appeared to be SATCOM antennas as well.  Fishery company buildings on both the Portland and Gloucester waterfronts sported VHF base station antennas and HF dipoles on their roofs.  I bet the captains like being able to talk to each other without too much risk of the boss-man or other boats listening to their QSO.

Considering how active the regular VHF marine channels were in Portland, and the lobsterboat captain’s remarks about captains scanning the VHF channels to listen to their competitors’ radio chatter....Chris’ theory makes even more sense.

Practical VHF marine range is limited by antenna height, but it seems like most captains use a practical limit of 15-20 miles for most applications.   A 100-150 watt HF radio should provide better ground wave range than a 25 watt VHF marine radio, and the use of out-of-band frequencies means your boss/competition would have to do some serious signals intelligence work (own a SDR, general coverage receiver, shortwave receiver with SSB, etc.) to find your “secret channel” or “sideband”. 

I do love the mystery of these quasi-legal or straight up freebanding two-way SSB HF users.

521
With the recent band openings on 11m it could certainly be done.  I'd stick with frequencies closer to the CB band simply because its easier to get gear/antennas for 25.615 MHz and up.   26.925 MHz / 26925 kHz comes to mind as a frequency to use, simply because its 6925 + 20 MHz (easy to remember).  It is also, however, right next to the often-busy freeband AM DX frequency of 26.915 MHz.  I've heard music within the CB bands during band openings and have found videos online of other DXers hearing music carriers on various 11m frequencies. 

A clearer frequency in the lower 26 MHz area might also be doable. 

11 meter equipment is cheap and readily available and good antennas are considerably smaller than the same performing antenna on 43 meters or 49 meters. 

522
10/11 meters / 11 meter / CB opening 6 August 2019
« on: August 07, 2019, 1032 UTC »
Recorded yesterday afternoon around 6:30pm local time (2230 UTC)

Lots of AM activity on in-band legal 40 CB channels on several online SDRs, and the usual freeband frequencies, 26.665 MHz, 26.685 MHz, 26.716 MHz, 26.735 MHz, 26.775 MHz, 26.785 MHz, 26.805 MHz, 26.815 MHz, 26.835 MHz, 26.885 MHz, 26.915 MHz, 26.925 MHz, 27.425 MHz LSB, 27.435 MHz LSB, 27.465 MHz LSB, 27.505 MHz AM, 27.525 MHz AM, 27.605 MHz LSB, 27.615 MHz AM, 27.665 AM, 27.745 MHz AM and 27.775 MHz AM.

In-band the usual suspects in AM mode: channel 6 (27.025 MHz), channel 11 (27.085 MHz), channel 12 (27.105 MHz), channel 15 (27.135 MHz), channel 19 (27.185 MHz), channel 20 (27.205 MHz), channel 22 (27.225 MHz), channel 26 (27.265 MHz), channel 28 (27.285 MHz), etc.  SSB DX on channel 37 (27.375 MHz LSB), channel 39 (27.395 MHz LSB), channel 40 (27.405 MHz LSB, with AM mixing in, of course)...and, naturally, channel 38 (27.385 MHz LSB) was very busy.

Locally there was a lot of activity on 11 meters...including channel 38 LSB booming in at points.  I got three videos, with three different radios!

Galaxy DX 959

https://youtu.be/H_IlQxhXEiU

CRE 8900 (aka DR-135CB)

https://youtu.be/ruQDlonQjCM

Superstar 3900 (aka a dozen other names and models)

https://youtu.be/7xVMULZG4DY

Note the activity on 27.435 MHz LSB, midwestern accents on 27.435 LSB and several other SSB frequencies/channels, including channel 38 LSB / 27.385 MHz LSB.  On the second video (the CRE 8900) I caught some CB operators using R/C channel 19A - 27.195 MHz - for AM voice communications.  Channel 19 was messy, which explains use of the +10 kHz switch.  27.195 is pretty popular.

I actually make a point of dropping the RF gain down while monitoring 27.025 AM on the Galaxy 959.  I had to adjust the RF gain on the CRE 8900 just a bit to reduce some of the background noise...sometimes that radio (it’s an early production version) does better with the RF gain at 75% or 80% instead of 100%.  I was able to drop the RF gain all the way down and still hear the stations on channel 6. 

523
Was there mention of what they're doing on hf?

I haven't come across any logs of activity on their HF frequencies, only the 138 MHz frequencies, the 267 MHz/277 MHz milair freqs and their Part 90 land mobile UHF business radio frequency at their Maryland base of operations (464.6125 MHz).

524
Sierra Nevada Corporation apparently uses several frequencies in the VHF and UHF military bands, including 138.075 MHz, 139.075 MHz, 139.850 MHz, 267.350 MHz and 277.350 MHz.  The 138 MHz frequencies have been logged with encrypted P25 voice traffic mixed with "clear" P25 voice and AM/FM modes heard on 267.35 and 277.35, including secure voice on 267.35 MHz / 277.35 MHz. 

They also have a couple licenses on various HF frequencies (namely WQRI680 and WQRI681)

2851 kHz (center frequency 2852.4 kHz) - USB dial frequency = center frequency - 1.4 kHz
3443 kHz (center frequency 3444.4 kHz)
5451 kHz (center frequency 5452.4 kHz)
5721 kHz (center frequency 5722.4 kHz)
6550 kHz (center frequency 6551.4 kHz)
8822 kHz (center frequency 8823.4 kHz)
10065 kHz (center frequency 10066.4 kHz)
11306 kHz (center frequency 11307.4 kHz)
13312 kHz (center frequency 13313.4 kHz)
17964 kHz (center frequency 17965.4 kHz)
21931 kHz (center frequency 21932.4 kHz)

123.3583 MHz - an interesting allocation, within the VHF air band, but using the 8.33 kHz offset..

emissions permitted on HF frequencies:
2K80J3E
2K80J9W
2K80H2B
5K00A3E
5K60A3E

emissions permitted on VHF frequency:

5K00A3E and 5K60A3E

525
Another New England fisheries net!  Well, I guess this gets filed under 5178 kHz.  Maybe showing up as 5178.2 kHz or 5178.3 kHz depending on what sort of radios are being used.  That, or somebody is making use of their fine tune control - or, CLARIFY/CLARIFIER control, I should say.

So we've got:

5178 kHz USB - active
6095 kHz USB - active
6212 kHz USB - active
6221 kHz USB
6363.5 kHz USB
6516 kHz USB
6870 kHz USB - active
6953 kHz USB
6958 kHz USB

For these New English fisheries....am I forgetting anything?  I know there was a log not so long ago in this same subforum for English language peskies using 5555 kHz LSB, not sure if it was the same group or "type" of user, but perhaps worth mentioning.  The 6516 USB log is one I heard that sounded like New England fishing fleet chatter, no idea if its the same area as the other logs.


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