Todays logs
31.200 pl 203.5 spanish taxi Costa Rica
32.180 pl 77.0 spanish taxi Costa Rica
32.940 pl 141.3 spanish taxi Costa Rica
35.840 pl 192.8 Bonded Concrete N Y
31.040 pl 71.9 Rural Sand and Gravel
26.320 AM unknown spanish with data sound
26.375 AM spanish with rodger beeps and some odd sounding type of data at end of transmission
Angelo
The band has been acting weird the past couple days. Yesterday afternoon (around 3:00-4:00pm Eastern Time) I noticed several of the European and UK paging / datalink frequencies active with data bursts...along with some German-language CB skip coming in, specifically on 26.825 MHz, 26.845 MHz, 26.855 MHz, 26.925 MHz, 26.945 MHz, 27.275 MHz (CB Channel 27), 27.335 MHz (CB Channel 33) and 27.355 MHz (CB Channel 35) - all in FM mode. Germany has an 80 channel CB allocation. Channels 1-40 are identical to the US and European standard 40 CB channels, and, just like in the U.S., AM, FM and SSB are all allowed. Channels 41-80 are FM or data only:
26.565 MHz - Channel 41
26.575 MHz - Channel 42
26.585 MHz - Channel 43
26.595 MHz - Channel 44
26.605 MHz - Channel 45
...10 kHz steps, straight sequence, up to
26.935 MHz - Channel 78
26.945 MHz - Channel 79
26.955 MHz - Channel 80
Unfortunately this means that when the skip from Europe is coming in, the German FM CB signals are often mixing in with Latin American signals (usually AM mode signals).
The paging and data link/telemetry frequencies I noted in use yesterday:
26.150 MHz - Narrowband data / paging bursts
26.200 MHz - Narrowband data / paging bursts
26.200 MHz - POCSAG paging - this is a commonly used on-site and wide-area paging frequency used throughout Europe
26.220 MHz - CCIR / POCSAG paging - narrowband and wide band
26.250 MHz - Narrowband data / paging bursts
26.350 MHz - Narrowband data / paging bursts
26.350 MHz - POCSAG paging - 10-12 kHz bandwidth
26.350 MHz - Narrow deviation paging signals, often mixing with the data bursts
26.450 MHz - Narrowband data / paging bursts
26.550 MHz - POCSAG paging - severe QRM from Latin American calling frequency 26.555 MHz LSB
26.640 MHz - Narrowband data / paging bursts
26.645 MHz - Paging signals - on-site hospital paging (POCSAG) in the UK
26.650 MHz - Narrowband data / paging bursts
26.695 MHz - Paging signals - on-site hospital paging (POCSAG) in the UK - frequency active non-stop
26.745 MHz - Paging signals - on-site hospital paging (POCSAG) in the UK - frequency active non-stop
26.750 MHz - Narrowband data / paging bursts
26.850 MHz - Narrowband data / paging bursts
26.900 MHz - Paging signals, European paging frequency
26.950 MHz - Data bursts, CCIR or POCSAG paging signals, mostly narrowband
26.695 and 26.745 were both just going non-stop, multiple signals mixing in on top of each other....along with some weak FM mode CB chatter and AM mode CB / freeband chatter for good measure.
The 26 MHz frequencies are good places to start. There are just as many of these systems on 27 MHz too.
27.505 MHz is used for paging in Spain, 27.885 MHz is used for voice and data paging (hospital paging) in Europe, 27.845 MHz, 27.8475 MHz and 27.850 MHz are also used for paging signals, unknown source, possibly Switzerland. 27.940 MHz is used for paging and data links/telemetry in Finland. 27.450 MHz is used for alarm links, paging and data links in several European countries and, like 26.200 and 26.220, many of these systems transmit a FM carrier signal to indicate an "idle" status. Unfortunately 27.450 is often just QRM city.
26.765 MHz AM was coming in nicely yesterday afternoon in the midst of all the other signals. Same with 27.735 MHz AM, 27.755 MHz AM, 27.765 MHz AM, 27.805 MHz AM, 27.885 MHz AM, 27.905 MHz AM and 27.915 MHz AM (all with taxi cab dispatch comms). U.S. truck drivers noted on 26.685 MHz AM, 26.735 MHz AM, 26.755 MHz AM, 27.615 MHz AM and 27.635 MHz AM.