Currently, POCSAG operation is *really* only supported with a URI (or hand-made USB device) with chan_usbradio (I dont believe I support it in chan_simpleusb yet, but it certainly COULD be...). The mechanism is also supported in chan_voter, but none of the current hardwares support its use. If all of that "works" for you (logistically) you then need a transmitter that is capable of REAL DIRECT FM. Any of the common transmitters, commercial or amateur, even with a direct modulation input, have some sort of AC coupling of the modulation input. This will not work with POCSAG paging. POCSAG, because of the fact that it is direct FSK, not AFSK, needs a transmitter with direct DC coupling of its modulation input. In other words, the modulation input must be capable of something like this: Say, for example, a change of 500mv of modulation voltage changes the transmitter's frequency 3 KHz. So, your modulation voltage is normally 2 volts. At that 2 volt input, your transmitter outputs a 440.000 MHz. You raise the modulation voltage to 2.5 volts. Your transmitter then shifts to 440.003 MHz. You keep the modulation voltage at 2.5 volts for 10 minutes, During that ENTIRE 10 minute period, the transmitter stays at 440.003 MHz. Any normal, capacitive-coupled input modulator is just NOT capable of doing that (for hopefully painfully-obvious reasons). Commercial paging transmitters have a DIGITAL voltage (like just a 0V/+5V) input to select one of the two frequencies (+/- from "center" carrier freqency for FSK). That is how they deal with the true FSK nature of paging. Do you have something that will accomplish this? Jim Subject: Re: [App_rpt-users] Paging From: hammin75@gmail.com Date: Wed, 29 Oct 2014 06:05:05 -0500 CC: app_rpt-users@ohnosec.org To: telesistant@hotmail.com Yep. Sent from my iPhone On Oct 28, 2014, at 11:55 PM, Jim Duuuude <telesistant@hotmail.com> wrote: Are you referring to POCSAG pagers?

From: hammin75@gmail.com Date: Tue, 28 Oct 2014 19:02:07 -0500 To: app_rpt-users@ohnosec.org Subject: [App_rpt-users] Paging

Was thinking about the fuction of getting some alpha pagers tuned up. Can u page from the software if so who has done it and how well does it work. Etc

Thanks

Sent from my iPhone _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button" You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.