We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Author Topic: Data Links, Paging Pagers 25-30 MHz [Via G8JNJ SDR]  (Read 761 times)

Offline R4002

  • Moderator
  • DXing Phenomena
  • *****
  • Posts: 3005
    • View Profile
    • R4002 - YouTube Videos
Data Links, Paging Pagers 25-30 MHz [Via G8JNJ SDR]
« on: January 16, 2024, 1336 UTC »
16 January 2024
WORK IN PROGRESS


26.625 MHz FM 26625 kHz FM - Pager systems - POCSAG
26.630 MHz FM

27.450 MHz FM 27450 kHz FM - FM carrier, several data link systems and POCSAG systems on this frequency
27.495 MHz FM 27495 kHz FM
27.505 MHz FM 27505 kHz FM - Wideband 15-18 kHz bandwidth POCSAG paging 27.505 MHz 27.505MHz
27.510 MHz FM 27510 kHz FM - POCSAG paging signals, offset 27.5125 MHz 27.512MHz
27.550 MHz FM 27550 kHz FM - POCSAG pager network paging system
27.600 MHz FM 27600 kHz FM - Pager - sporadic signal 12 kHz BW
27.650 MHz FM 27650 kHz FM - POCSAG pager paging signals
27.650 MHz FM 27650 kHz FM - FM carrier - alarms, low power data links, unknown location
27.700 MHz FM 27700 kHz FM - POCSAG paging pager signals 27,7 MHz
27.720 MHz FM 27720 kHz FM - Paging systems pagers 27.72 MHz FM
27.740 MHz FM 27740 kHz FM - POCSAG paging pager signals - sporadic signal
27.750 MHz FM 27750 kHz FM - POCSAG paging pager systems 27.75 MHz
27.760 MHz FM 27760 kHz FM - Low power alarm and paging systems, Europe - paging signals noted
27.845 MHz FM 27845 kHz FM - Offset paging frequency, see 27848
27.848 MHz FM 27848 kHz FM - Paging POCSAG frequency 27.848 MHz 27.8475 MHz
27.850 MHz FM 27850 kHz FM - POCSAG pager signals, offset frequency - see 27.848 MHz 27.8475 MHz
27.885 MHz FM 27885 kHz FM - POCSAG pager paging signals - narrow and wide band POCSAG
27.890 MHz FM 27890 kHz FM - FSK signals, 27.889 MHz USB
27.900 MHz FM 27900 kHz FM - POCSAG paging pager signals
27.940 MHz FM 27940 kHz FM - Constant "pulsing" MFSK data signal with carrier tone on 27.941 MHz
27.940 MHz FM 27940 kHz FM - POCSAG paging signals on top of pulsing data signal
27.950 MHz FM 27950 kHz FM - Two-carrier FSK RTTY like data signal (27.95 MHz USB)

29.740 MHz FM 29740 kHz FM - FSK signal, 150Hz shift
29.745 MHz FM 29745 kHz FM - MFSK signals, sporadic
29.750 MHz FM 29750 kHz FM - POCSAG paging, sporadic
29.800 MHz FM 29800 kHz FM - POCSAG paging pager systems
29.855 MHz FM 29855 kHz FM - FSK signal, constant
29.878 MHz FM 29878 kHz FM - FSK signal - 29.8783 MHz FSK
29.900 MHz FM 29900 kHz FM - POCSAG paging pager systems
U.S. East Coast, various HF/VHF/UHF radios/transceivers/scanners/receivers - land mobile system operator - focus on VHF/UHF and 11m

Offline SkyWalker

  • Jr. Member
  • **
  • Posts: 39
    • View Profile
    • IZěKBA Lorenzo - official site
    • Email
Re: Data Links, Paging Pagers 25-30 MHz [Via G8JNJ SDR]
« Reply #1 on: January 16, 2024, 2137 UTC »
In the last 2 or 3 days, a POCSAG on 26.900MHz has been strong in Italy.

Offline R4002

  • Moderator
  • DXing Phenomena
  • *****
  • Posts: 3005
    • View Profile
    • R4002 - YouTube Videos
Re: Data Links, Paging Pagers 25-30 MHz [Via G8JNJ SDR]
« Reply #2 on: January 26, 2024, 2017 UTC »
Yessir, 26900 kHz 26.9 MHz paging system is powerful.  I'm not 100% sure where it is located, but it seems to have several different transmitters operating on that specific 26.900 MHz frequency, as when the band is open there's often various signal strength signals coming in. 

Do you often hear the POCSAG paging systems on 29.800 MHz and 29.900 MHz? 

U.S. East Coast, various HF/VHF/UHF radios/transceivers/scanners/receivers - land mobile system operator - focus on VHF/UHF and 11m

Offline SkyWalker

  • Jr. Member
  • **
  • Posts: 39
    • View Profile
    • IZěKBA Lorenzo - official site
    • Email
Re: Data Links, Paging Pagers 25-30 MHz [Via G8JNJ SDR]
« Reply #3 on: January 30, 2024, 1635 UTC »

Do you often hear the POCSAG paging systems on 29.800 MHz and 29.900 MHz?

Last summer I received similar RTTY signals around 29800, I thought they were radio fishing buoys, I should have some videos on YouTube
https://www.youtube.com/watch?v=sRgDR-6YQRg
« Last Edit: January 30, 2024, 1638 UTC by SkyWalker »

 

HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns