Author Topic: Strange Telemetry 158.7625 MHz  (Read 435 times)

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Offline Hansanter67

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Strange Telemetry 158.7625 MHz
« on: May 03, 2016, 22:31:09 PM »
Can anybody shed any light on the constant but strong signal telemetry bursts that can be heard throughout Dublin (at least) on 158.7625 MHz ?

H./

Offline humaxf1

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Re: Strange Telemetry 158.7625 MHz
« Reply #1 on: May 03, 2016, 22:50:01 PM »
Sounds nothing like the usual telemetry

More than likely a power station or water reservoir sending data back to Big Brother

Offline Hansanter67

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Re: Strange Telemetry 158.7625 MHz
« Reply #2 on: May 04, 2016, 10:23:32 AM »
Perhaps you are correct but the ESB and water boards already have very numerous regular SCADA signals dotted in the VHF hi and UHF bands and these normally use directional yagi antennas... pointing at 'big brother'. The signal on 158 is different, it seems to be audible and strong all over Dublin and beyond.
H./

Offline WBEN98

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Re: Strange Telemetry 158.7625 MHz
« Reply #3 on: October 24, 2017, 14:15:32 PM »
There is this transmission on the same frequency 158.7625MHz NFM which I recorded in the Cork area (audio below) -  transmits in a short burst several times an hour (also more than one transmitter appears to be involved as I can also often hear the same type of signal with a weaker transmission just after the stronger transmission):
 
https://clyp.it/htljnhzs

(squelch was off so noise either side of transmission)

Is this the same thing as being heard in Dublin?
« Last Edit: October 24, 2017, 14:21:44 PM by WBEN98 »