How can I know the Address of my Pagers?

[Freemor]

Just a thought.

The pager address space is tiny if your transmission is low power enough (i.e. the singal wont leave the lab in a meaningful way.) A computer could blast through All available addresses sending the address it was testing as the message. When the pager beeps you'll have your address on the screen. Of course that requires you to know the freq.

 

[N5XPM]

Hello, they gave me 2 pagers, a Motorola GoldLine and an Advisor, in neither of them can I see the Address, I would like to be able to send a message with my SDR equipment, but I don't see it anywhere, at a hacking convention there was a pager that had his address written and we were able to send a message


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Been a few years. The Goldline is a 900 Mhz Crystal POCSAG pager I believe. The Skytel Advisor is a 900 Mhz Crystal POCSAG pager as well. Most likely programmed to 2400 baud if both were on Skytel. If in the original cases, the frequency would have been on a label on the back. The capcode might have been on the back of the Advisor, but Capcodes often were changed and labels rarely updated. Each had a specific software package (Advisor Gold software will not work).
The Advisor frequency board could be swapped to UHF crystal or VHF synthesized (from a Bravo plus or Classic.
The Advisor was not shipped as Synthesized, but the Bravo receiver could be swapped and Advisor software supported synthesized receiver boards.
Twenty years ago this would have been a five minute project. Programming these pagers now might be figured out if programming passwords were not activated, but the labor could take a few hours and would not be worth it, as there are very few 900 Mhz POCSAG systems to use the pagers on at this point.

 

[CanesFan95]

Maybe his research led him to find this forum.

Looking at the pager isn't gonna tell you the capcode, baud rate, or perhaps the frequency. You have to read the pager with software. So who gave you the pagers? If you know who was using 'em in what area, maybe do an FCC search to start narrowing down what the frequency could be.

And I thought SDRs were receive-only. Are you guys saying there's a way to make 'em transmit?

 

[redbeard]

Maybe his research led him to find this forum.

Looking at the pager isn't gonna tell you the capcode, baud rate, or perhaps the frequency. You have to read the pager with software. So who gave you the pagers? If you know who was using 'em in what area, maybe do an FCC search to start narrowing down what the frequency could be.

And I thought SDRs were receive-only. Are you guys saying there's a way to make 'em transmit?

OP doesn't appear to be in the US, FCC isnn't going to help. HackRF is a transmit capable SDR.

 

[ElroyJetson]

You can do it with a Flipper Zero and the appropriate software. Google will inform you.....

 

[Freemor]

OP doesn't appear to be in the US, FCC isnn't going to help. HackRF is a transmit capable SDR.

Yes several of the more advanced and more expensive SDRs can transmit. Usually at very low power for doing lab bench style testing. The hackRF One for example can transmit at a maximum of about 15 dBm so thats something like 0.03W