2023 VHF Low Band Logs

[misterpaul71]

Anyone know who uses an 82.5 hz tone on 33.880. First time I've ever noted this one. Brief signals.

 

[izzyj4]

Anyone know who uses an 82.5 hz tone on 33.880. First time I've ever noted this one. Brief signals.

I did a search in the database and nothing came up for that PL tone on 33.88. In CT, two frequencies have a 179.9 PL (QV dispatch in the eastern part of the state) and one with a 127.3 PL (Bethlehem). I know TN Dispatch in CT has an active license for the frequency, not sure if they are still using it. MD, NH, OH & PA all have one hit for the frequency and WV has 2 hits, all are carrier squelch. If you hear it again, see if you can hear a department name or call sign. It could be something that is not listed in the database due to the licensee being expired and the department is still using it.

 

[misterpaul71]

I did a search in the database and nothing came up for that PL tone on 33.88. In CT, two frequencies have a 179.9 PL (QV dispatch in the eastern part of the state) and one with a 127.3 PL (Bethlehem). I know TN Dispatch in CT has an active license for the frequency, not sure if they are still using it. MD, NH, OH & PA all have one hit for the frequency and WV has 2 hits, all are carrier squelch. If you hear it again, see if you can hear a department name or call sign. It could be something that is not listed in the database due to the licensee being expired and the department is still using it.

Apologies, senior moment on my behalf - It's Licking County, OH ( as previously discussed on here)

 

[W1KNE]

Apologies, senior moment on my behalf - It's Licking County, OH ( as previously discussed on here)

I've submitted this for an update to the DB. I've received it multiple times with PL 82.5, and over the span of a year now.
There are other logs with it here too.

 

[cx4storm]

31.6500 AM - Religious programming. Station identified as WWCR Nashville, TN.

This frequency is NOT listed in the FCC's ULS.

My location is along the Mid-Atlantic coast.

 

[RFI-EMI-GUY]

31.6500 AM - Religious programming. Station identified as WWCR Nashville, TN.

This frequency is NOT listed in the FCC's ULS.

My location is along the Mid-Atlantic coast.

Second harmonic of 15.825 MHz

WWCR-1

• 3.215 MHz 02:00 - 09:59 UTC
• 15.795 MHz 10:00 - 12:59 UTC
• 15.825 MHz 13:00 - 21:59 UTC
• 6.115 MHz 22:00 - 01:59 UTC

 

[cx4storm]

Second harmonic of 15.825 MHz

WWCR-1

• 3.215 MHz 02:00 - 09:59 UTC
• 15.795 MHz 10:00 - 12:59 UTC
• 15.825 MHz 13:00 - 21:59 UTC
• 6.115 MHz 22:00 - 01:59 UTC

Wow. That's really neat. Thank you.

 

[cx4storm]

Wow. That's really neat. Thank you.

Two on-air personalities were just discussing this issue. They were getting reports from the Philadelphia area about being heard on 31 MHz. They went on to discuss sunspots and other aspects of DX reception.

 

[RFI-EMI-GUY]

Two on-air personalities were just discussing this issue. They were getting reports from the Philadelphia area about being heard on 31 MHz. They went on to discuss sunspots and other aspects of DX reception.

It would be interesting to know if the harmonic received is originating from WWCR itself, occurring in the receivers, or being reradiated from some transmitter or structure elsewhere. More than likely it is coming from the WWCR transmitter at some low level, but it could be something else.

 

[kb7wox]

1845z 9 Dec /22
33.98MHz CSQ
Warren County PA
dispatch to Buchanan St
--------------
1905z 9 Dec /22
33.86MHz CT 77.0
Fire/EMS Dispatch - Washington Co MD

 

[kb7wox]

Your 30's are up, no more editing of posts

1945z 9 Dec /22
33.82MHz PL 179.9
Colchester Fire
New London County, CT

 

[W1KNE]

It would be interesting to know if the harmonic received is originating from WWCR itself, occurring in the receivers, or being reradiated from some transmitter or structure elsewhere. More than likely it is coming from the WWCR transmitter at some low level, but it could be something else.

Having been in that facility, I can tell you it's quite complex. They have four big Continental transmitters, all feed rhombic antenna systems. Also on the same property is a 5 tower conventional AM array for their 1300 AM. However, very little has changed, as it is in a rural area outside of Nashville. I know those Continentals are work horses but I suspect that they've been having an issue with one of them.

 

[kkn50]

Recent Logs
San Antonio TX
BCD996XT Scanner with 10 meter dipole

FREQ	SQ	DESCRIPTION
30.0200	CSQ	Southlake Regional Health Centre, Newmarket, Ontario w/ paging & Morse ID XKD841
30.0250	150.0	US MIL "Fox Mike frequency is 40.6"
30.2200	CSQ	General Hospital, North York, ON, Canada w/ Morse ID XKC0414
30.6400	110.9	Thomas, Bennett & Hunter Concrete, Westminster MD
30.7000	CSQ	Unidentified language
30.7500	CSQ	Unidentified language
30.7600	CSQ	Van Pool Transportation, Paxton MA w/ Morse ID WQPU857
30.7800	CSQ	Unidentified language
30.8000	173.8	Taxi dispatch in Spanish
30.8800	88.5	US Business - Unidentified - last logged in 2014
30.9200	D072	H&S Plumbing & Heating, Hernden VA
31.0400	71.9	Unidentified US Business
31.0800	94.8	Blooming Glen Contractors Inc, Blooming Glen PA w/ Morse ID KNJK923
31.1000	CSQ	Unidentified language
31.1200	100.0	Secco of Palmer, Holyoke MA School Buses. Repeater output. Input is 35.4000.
31.2000	203.5	Taxi dispatch in Spanish. Active since at least 1988.
31.2000	D432	Thomas Bennett & Hunter Concrete, MD
31.4000	CSQ	Unidentified Language
31.4400	162.2	Possible Mid-Continent Concrete, AR or OK
31.7000	150.0	MIL - Canada?
31.8000	CSQ	Unidentified language
31.8200	D244	Trans Group-Monsey, school buses, Rockland County NY
31.9400	118.8	Chestnut Ridge Transport, Spring Valley NY
32.1800	77.0	Taxi, Alajuela, Costa Rica
32.1800	141.3	Taxi, Alajuela, Costa Rica
32.9400	141.3	Taxi dispatch in Spanish - band open to Central/South America
33.0000	CSQ	Fax - first logged 2011 - band open to Central/South America
33.0400	179.9	EMS Dispatch - Mohegan Tribe of Indians of CT, New London
33.0800	131.8	Spencer Rescue - Spencer MA
33.1000	118.8	Chestnut Ridge Transport, Spring Valley NY
33.4400	118.8	Possible Border Paving Ltd, Alberta, Canada
33.4400	179.9	Fire/EMS Dispatch - Tolland County CT
33.4600	114.8	Fire Dispatch - Provincetown MA w/ voice ID
33.4800	114.8	Fire Dispatch - Barnstable MA
33.4800	179.9	Fire Dispatch - Tolland County CT
33.5600	CSQ	Fire/EMS Dispatch - Unidentified "Medical alarm, Duke St"
33.5800	114.8	Fire/EMS Dispatch - Yarmouth MA
33.6200	131.8	South Worcester County Fire Net, MA
33.6600	114.8	Fire/EMS Dispatch - Truro MA w/ voice ID
33.6600	179.9	Fire Dispatch - Norwich CT
33.7800	77.0	Fire/EMS Dispatch - Cheshire Co NH
33.7800	114.8	EMS Dispatch - Bourne MA
33.8000	179.9	Fire/EMS Dispatch - Windham Co CT
33.8200	179.9	Fire Dispatch - Possible KAV469 - Colchester, New London, CT
33.8600	179.9	Tolland County Mutual Aid, CT
33.8800	127.3	Fire Dispatch - Litchfield CT - last logged in 2015
33.9000	91.5	Fire Dispatch - Broome Co NY
33.9000	179.9	EMS Dispatch - Quinebaug Valley Emergency Communications CT
33.9400	179.9	Fire Dispatch - Waterford CT
33.9600	206.5	Fire/EMS Dispatch - Westchester Co NY
35.6800	CSQ	Paging
35.8200	192.8	Troy Sand & Gravel, NY
35.8400	192.8	Bonded Concrete Inc, West Sand Lake NY
35.9800	146.2	Carroll Concrete Co, NH & VT
36.0000	150.0	MIL in French - Canada?
36.0000	150.0	US MIL
36.5000	150.0	US MIL - possible Butts AAF
36.9000	150.0	US MIL - Martindale Army Heliport Ops, San Antonio TX
37.3600	110.9	IL DOC - "F1 Low Band"
38.6600	173.8	Taxi dispatch in Spanish - band open to Central/South America
39.3400	162.2	CA HP
39.4000	162.2	CA HP
44.9400	186.2	CA HP
45.0200	192.8	CA HP
45.4200	136.5	CA HP
45.5000	192.8	CA HP
45.7000	136.5	CA HP
46.1000	123.0	Fire/EMS Dispatch - Citrus Springs, FL
49.4600	67.0	Pike Electric <nationwide contractors>
49.4800	67.0	Pike Electric <nationwide contractors>
49.5200	67.0	Pike Electric <nationwide contractors>
49.5400	67.0	Pike Electric <nationwide contractors>
49.5800	67.0	Pike Electric <nationwide contractors>

 

[W1KNE]

FREQ	SQ	DESCRIPTION
33.5600	CSQ	Fire/EMS Dispatch - Unidentified "Medical alarm, Duke St"
33.8800	127.3	Fire Dispatch - Litchfield CT - last logged in 2015

That 33.5600 CSQ will be Lancaster County, PA. There is an urgent care center in Lancaster called "LG Urgent Care Duke Street".

33.8800 127.3 will be Bethlehem, CT in Litchfield County.

 

[kb7wox]

33.8000

179.9

Fire/EMS Dispatch - Windham Co CT

missed the PL tone, likley signal received in // to the Colchester CT heard in #291

 

[kkn50]

2022/12/11 Logs
San Antonio TX
BCD996XT Scanner with 10 meter dipole

FREQ	SQ	DESCRIPTION
30.0200	CSQ	Southlake Regional Health Centre, Newmarket, Ontario w/ paging & Morse ID XKD841
30.2200	CSQ	General Hospital, North York, ON, Canada w/ Morse ID XKC0414
30.8000	173.8	Taxi dispatch in Spanish
31.0800	94.8	Blooming Glen Contractors Inc, Blooming Glen PA w/ Morse ID KNJK923
31.2000	203.5	Taxi dispatch in Spanish. Active since at least 1988.
32.1800	77.0	Taxi, Alajuela, Costa Rica
32.1800	141.3	Taxi, Alajuela, Costa Rica
32.9400	141.3	Taxi dispatch in Spanish - band open to Central/South America
33.4400	179.9	Fire/EMS Dispatch - Tolland County CT
33.5800	114.8	Fire/EMS Dispatch - Yarmouth MA
33.6600	114.8	Fire/EMS Dispatch - Truro MA w/ voice ID
33.8000	179.9	Fire/EMS Dispatch - Windham Co CT
33.8200	179.9	Fire Dispatch - Possible KAV469 - Colchester, New London, CT
33.8600	179.9	Tolland County Mutual Aid, CT
33.9400	179.9	Fire Dispatch - Waterford CT

 

[KF4ZTO]

I've logged numerous Asian language - Unidentified language transmissions on frequencies that fit the 25 kHz channel step, recent logs (November 2022 and this month) include:

29.9000 CSQ - Unknown language - QRM from European POSCAG pager signals
30.0000 CSQ - Unknown language
30.0250 CSQ - Unknown language - QRM from POCSAG pager signals on 30.020 MHz
30.1000 CSQ - Unknown language
30.6500 CSQ - Unknown language
30.7500 CSQ - Unknown language
30.7750 CSQ - Unknown language
30.9000 CSQ - Unknown language
31.1000 CSQ - Unknown language
31.3250 CSQ - Unknown language
31.4250 CSQ - Unknown language
31.7000 CSQ - Unknown language
31.7750 CSQ - Unknown language - also with POCSAG QRM (31.725 MHz, 31.750 MHz and 31.775 MHz are UK hospital paging freqs)
31.8000 CSQ - Unknown language
31.9000 CSQ - Unknown language


30.775 MHz and 30.900 MHz have popped up numerous times.

The languages sounded like Mandarin Chinese or maybe Vietnamese. None of them had any CTCSS (PL) or DCS (DPL) tone/codes transmitted with them.

I know there is a little-known marine radio service out of China (PRC, not Taiwan) that uses FM voice and operates in the 27.500 MHz to 39.475 MHz range (25 kHz channel steps, straight channelization, no CTCSS/DCS, regular 4 kHz/5 kHz FM deviation).

480 channels. 25 watt RF power output (at least for the radios I've found in my research - including the FT-801 Fisheries Radio Transceiver).

27.500 MHz is channel 1, 27.525 MHz is channel 2, up to 39.450 is channel 479 and 39.475 is channel 480. The radios are advertised as "27.5 MHz - 39.5 MHz" as are the antennas.

I have a feeling many of these UNID language logs could be fishing fleets using equipment for that service. The frequencies match up, as do folks hearing similar traffic +5 kHz or -5 kHz from the channelized frequencies (i.e. 30.7800 MHz instead of 30.7750 MHz, etc.).

It wouldn't surprise me if this equipment has proliferated itself to places like South America and found its way into South American fishing fleets or at the very least Asian fishing fleets operating closer to South America (especially when the band is open to that area).

The 29.750 MHz, 29.800 MHz, 29.850 MHz, 29.900 MHz, 29.950 MHz frequencies are used somewhere in Europe (and possibly also Latin America) for paging. Same with 30.000 MHz and 30.025 MHz. I know 30.020 MHz is used for paging in Canada as well, which might explain the multiple POCSAG signals at once loggings I've had lately. 31.725 MHz, 31.750 MHz and 31.775 MHz are UK medical paging frequencies (POCSAG).

 

[redbeard]

I learned recently that strong carriers in the neigborhood of 27.120MHz are used for diathermy, a medical procedure. Not sure If I have a local clinic that does it or I was DXing it but I have seen it multiple times now.

 

[RFI-EMI-GUY]

I learned recently that strong carriers in the neigborhood of 27.120MHz are used for diathermy, a medical procedure. Not sure If I have a local clinic that does it or I was DXing it but I have seen it multiple times now.

It is also used for heating lumber to remove moisture, welding vinyl plastic.

 

[W8HDU]

Typically, diathermy radiation is only 250 - 1,000 feet due to better medical equipment and shielded rooms. But what @RFI-EMI-GUY mentions about plastic is a good possibility. We have a plant within a mile of us which uses this and what they call sonic welding, to seal boxes with electronics in them. It shows up on our spectrum analyzer in the shop if we're doing an OTA measurement.

I learned recently that strong carriers in the neigborhood of 27.120MHz are used for diathermy, a medical procedure. Not sure If I have a local clinic that does it or I was DXing it but I have seen it multiple times now.