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Messages - R4002

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586
Moving New York City out of the T band won't be easy. They refused to narrow band when the requirement came out which is why no other licensee in the T band had to narrow band. They are a huge user with a bit of clout.

NYPD and FDNY are only two of the several UHF-T band users with clout.  LAPD and LASO both make extensive use of 470-512 MHz.  Most major metro areas have at least one TV channel worth of bandwidth somewhere between 470 and 512 authorized for land mobile uses, the bigger areas have several (see New York, Chicago, Los Angeles, Houston, etc.).  Some of these areas have moved to the 700/800 band while others have not.  Chicago and Boston Police are still on 460 MHz, while smaller departments in the suburbs of these cities use frequencies in the 470-512 MHz range. 

Also, Motorola needs more money.  Who cares if the existing system is working perfectly? 

587
I have long had a suspicion that all analog terrestrial bcasting, tv, am/fm, will be replaced with sat and cell service.

In some places probably.  The UHF spectrum currently occupied by TV is prime real estate for cellular service.  First they took 800 MHz, then 700 MHz, now 600 MHz.  Re-organize the TV channels yet again.  Will streaming television/video services eventually replace broadcast TV?  Maybe.  The FM band(s) are another story (maybe).  It would make sense for the FCC to open up 54-72 MHz and 76-88 MHz for broadcasting or something similar.  Isn't Australia doing that with the 76-88 MHz band?  "Narrowcasting" I think is what its called.  Analog FM (narrowband though, the frequency steps are smaller) for particular target audiences.  That, or re-assign those bands for land mobile.  66-88 MHz has long been a land mobile band in Europe and other places, although, like 30-50 MHz here, a lot of users have moved to higher frequencies.  I do know that in France the 66-88 MHz band is used by the military/government with a wide-area digital trunking network.  There are portions of that band (72-73 MHz, 75 MHz and 75-76 MHz) that are already in use for other services, 75 MHz is used for marker beacons at airports and the 72/75 MHz bands are used for remote control, telemetry, fixed links for land mobile radio and dozens of other purposes.

I think eventually the FCC will require all users in large metro areas to vacate the 470 MHz to 512 MHz UHF-T band (which is heavily used for public safety purposes in basically every major city in the USA) and move to 700 MHz or whatever they're calling the nationwide public safety broadband LTE network they've been talking about for what seems like forever now.  The lower part of UHF (400-512 MHz) has excellent propagation characteristics in urban areas and is pretty much perfect for police/fire/EMS radio (which is what its used for in many places). 

588
6930.2 kHz AM

Carrier came on shortly after WREC signed off

Dead carrier for about 10 minutes, then SSTV at 2152 UTC, another SSTV at 2154 UTC

Off at 2201?

589
6545.4 kHz sounds too high, 6545.3 sounds too low, but 6545.4 makes more sense.  Portuguese chatter heard this afternoon via the Westminster, MD KiwiSDR. 

590
Hello Rurik and welcome to HFUnderground.  Thank you for your post about the Russia-Ukraine radio war.  I know the Russians are well-versed in information warfare, deception and propaganda.  The fact that they're targeting radio operators makes sense. 

So in addition to 7050 kHz, 7055 kHz and 3731 kHz the other frequencies in use are:

7055 kHz LSB
7050 kHz LSB

3735 kHz LSB
3731 kHz LSB
3700 kHz LSB
3688 kHz LSB

Can other listeners in Europe confirm these frequencies are also in use?  Are they transmitting on multiple frequencies at once? 

Thank you for your insight to this fascinating topic. 

Also, careful with the capital letters (CAPSLOCK), it makes it seem like you're yelling  :D

Again welcome to the forum. 

591
The use of 6090 kHz and other frequencies within the 49 meter broadcast band during the daytime almost points to them using NVIS as their propagation mode of choice...that, or they're even closer to each other than NVIS range.  Hard to say for sure.  Since they're certainly pescadores in the literal sense, and they operate out of the legal marine band (some of the time) they probably belong in the peskies forum. 

The owners/captains of these boats likely had their radios programmed with several different frequencies that can be picked "on the fly" (channelized or programmed into the radio's memory) depending on time of day, interference and who they want (or don't want) listening in on their conversation.  While 6212 kHz is one of the ITU standard HF marine channels, the other frequencies they've been heard on are out of band (either in 49 meters or in the fixed/mobile allocation that is 43 meters / 6765-7000 kHz).

Considering the sheer number of Spanish and Portuguese language chatter I've heard on the higher frequencies - that is, from roughly 7300 kHz or 7400 kHz up through 8 MHz into the bottom and middle portion of 9 MHz, I'm surprised these guys aren't using those frequencies as well.   If they are within NVIS range of each other, they probably have a lower frequency (I imagine somewhere in the 3-5 MHz range) for use when 6 MHz isn't playing nicely. 


592
10/11 meters / 11 meters is active 1715 UTC 12 July 2019
« on: July 12, 2019, 1756 UTC »
Posting this a little late but during my lunch break I heard some skip activity on the legal 40 CB channels, of course channel 6 (27.025 MHz) was busy, as well as several others.  Channel 38 LSB - 27.385 MHz LSB was also active.  Likely more sporadic-E propagation enhancement.  According to DXMaps.com, both 10 meters and 6 meters are active on the US East Coast with E-skip activity, so it would make sense for 11 meters to be open too.


593
10/11 meters / Re: 27.525 am
« on: July 12, 2019, 1719 UTC »
Interesting, 27.525 MHz AM is one of the more popular trucker out of band (freeband 11m) frequencies, but you could be hearing stations local to you.  I've noticed lots of AM voice traffic in the 27.405 to 28.000 MHz region during the recent 11 meter band openings.  27.525 MHz, 27.545 MHz, 27.575 MHz, 27.585 MHz, 27.605 MHz, 27.615 MHz, 27.635 MHz and several others have been active.  The other day 27.845 MHz, 27.775 MHz, 27.725 MHz and 27.885 MHz were also active with AM voice traffic. 

594
6930 kHz 6.930 MHz USB mode 6930 USB shortwave HF pirate station WREC - Radio Free East Coast pirate

1715 UTC - Days of The New - Shelf In The Room at tune in time
1720 UTC - Soul Asylum - Somebody To Shove
1721 UTC - a pause for a few seconds, then back into music
1722 UTC - Screaming Trees - I Nearly Lost You There (great music selection so far!)
1725 UTC - signal dropped down a bit
1726 UTC - Better Than Ezra - Good
1729 UTC - Eve 6 - Inside Out

595
Maybe this is better suited for the Peskies forum?   ;D

IIRC, 6870 kHz USB is a new frequency for them.  I know they've hung around 6095 kHz USB, 6212 kHz USB and a couple frequencies in the 6900 kHz to 7000 kHz range. 

I have a feeling there's several different fishing fleets involved, perhaps each of them have their own set of "private" frequencies programmed in their radios?  On my recent trip to New England I did stop and spend an afternoon in Gloucester.  I noted that not only do all the fishing vessels have multiple VHF and HF antennas, but many of the fisheries buildings and facilities on the waterfront had VHF (and MF/HF) antennas on their roofs as well. 

596
10/11 meters / 27.300 MHz LSB 27300 LSB 2101 UTC 10 July 2019
« on: July 10, 2019, 2103 UTC »
Two OMs chatting in between channels 29 and 30 (27.295 MHz and 27.305 MHz respectively).  One of those secret channels, 27.300 MHz.

"you've done well, my friend" heard at 2101 UTC.  Weak signals, but they're definitely there.  LSB mode.  Heard on COMMSIGMA KiwiSDR on the CT/MA border. 

597
Bullfrog in Boston working a station in Missouri on 27.145 MHz at 2100 UTC 

598
10/11 meters / 11 meters is active 2045 UTC 10 July 2019
« on: July 10, 2019, 2058 UTC »
Via COMMSIGMA KiwiSDR, from 2045 UTC to 2055 UTC (1645 to 1655 local time)

26.065 MHz AM - two OMs talking, "nearing 100 mile there" "closer to the city" - sound like truckers, southern accents
26.105 MHz AM - similar traffic to traffic heard the other day, truckers or similar traffic
26.405 MHz AM - weak AM carriers fading in and out
26.565 MHz AM - OM doing radio checks
26.775 MHz AM - southern-accented OMs
26.885 MHz AM - similar to 26.915 MHz AM, heard the frequency referred to as "885"
26.905 MHz AM - central US stations heard, Illinois mentioned
26.915 MHz AM - very busy, several stations talking at once, heard a station ID'ed as "Jailbird"

not all 40 legal CB channels were active, the usual AM and SSB activity centers were busy, including 27.385 LSB

27.465 MHz LSB - active with DXing stations, general rag-chewing
27.575 MHz AM - "you going down to where? 700?" "you must have lots of spray"

Not as busy as it was yesterday, but still a considerable amount of DX rolling in this afternoon



599
Equipment / Re: Notch Filter for the 9330 kHz WBCQ SuperStation
« on: July 10, 2019, 1425 UTC »
I was listening to 9330 yesterday afternoon.  The broadcast sounded "hot," heavy audio compression squeezing the voices of both weeneys as they spoke, room noise pumping during pauses.  I understand heavy processing for intelligibility while QRP (if I don't make use of serious compression and EQing with my 15W I'm usually not understood,) but pushing a half-million I hope they decide to ease it back some.  It was extremely fatiguing to my ears.

I concur.  It does seem like they're running some pretty heavy compression...but there's differences from program to program, so there's also the possibility that the audio is being provided to WBCQ already compressed.  Who needs dynamic range anyway? [kidding]   with 550,000 watts carrier power, you can afford to have some dynamic range and make the audio sound nicer, especially for music. 

600
Yes, they are and have been going on for quite some time.  The main frequencies appear to be 7050 kHz LSB and 7055 kHz LSB for 40 meters and 3731 kHz LSB for 80 meters (or 75 meters).

7050 kHz / 7055 kHz 7.050 MHz / 7.055 MHz Russian and Ukrainian stations jamming each other (daytime)
3731 kHz / 3.731 MHz Russian and Ukrainian stations jamming each other (nighttime)

Several other listeners have logged similar activity, check out these threads:

https://www.hfunderground.com/board/index.php/topic,51545.0.html

https://www.hfunderground.com/board/index.php/topic,52489.0.html

https://www.hfunderground.com/board/index.php/topic,52042.0.html

https://www.hfunderground.com/board/index.php/topic,52111.0.html

https://www.hfunderground.com/board/index.php/topic,52337.0.html

https://www.hfunderground.com/board/index.php/topic,52122.0.html

https://www.hfunderground.com/board/index.php/topic,51983.0.html

https://www.hfunderground.com/board/index.php/topic,52041.0.html

I don't believe 6855 kHz has been logged however.  Same goes for 7500 kHz. 

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