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1. #Pocsag pager software install#
2. #Pocsag pager software driver#
3. #Pocsag pager software software#
4. #Pocsag pager software trial#

Now, to decode the POCSAG or Flex signals, you need need to download and install a free program called PDW, which can be downloaded from this page, then follow these steps.

#Pocsag pager software trial#

You can use either windows stereo mix, VB-cable (free) or Virtual Audio Cable (paid with trial version). Audio piping will allow the audio from SDRSharp to be passed to a decoding program. You will also need to have an audio piping method installed and set up. If you do not, visit the Buy RTL-SDR page, and then the Quickstart guide. We will assume you have this much done already. POCSAG Waterfall Image įor this tutorial, you will need to have an RTL-SDR dongle set up and working with SDRSharp. They also have a distinctive sound when played with NFM mode. Pagers normally use either the POCSAG or FLEX protocols, and the signals will look on a waterfall something like the signal shown below. Check  or Google for frequencies in your area, or just search for them manually - they are usually quite easy to spot. Usually they will be anywhere from 137 - 160 MHz, around ~450 MHz, or around 900 MHz. Pager frequencies differ among different countries. Since pager signals are usually transmitted at a very strong power, usually almost any antenna will work to receive them, even the stock antenna that comes with the dongle.

#Pocsag pager software software#

While directed at the RTL-SDR, this tutorial may also be useful for use with other software defined radios such as the Funcube dongle, Airspy and HackRF, or even traditional hardware radios with a discriminator tap.

Here YouTube user nerdymark shows 18 minutes of pager decoding using SDRSharp, PDW and an RTL-SDR. Please research and respect your local laws before attempting this project. In some countries it may be illegal to even set up a receiver. We note that in most countries it is perfectly legal to receive pager messages, as they are plain text unencrypted, but it is illegal to share or act on the information received. Previously an art installation in New York was set up with an SDR to try and highlight some of the privacy and security concerns that pager use brings. Security concerns also stem from the fact that many IT companies set up systems that forward notices of emails being received with the subject line visible, and system messages that contain IP addresses, email addresses and names, database error messages, and URLs. This is a concern as it is a major breach of patient privacy.

Obviously a lot of messages sent through pagers are plain text and contain personal data. Not many people use pagers these days with mobile phone text messaging being used more, but pagers are still popular with doctors, hospitals in general, some fire and ambulance agencies and various IT companies, as they tend to be more reliable and have greater coverage. If you don't know what a pager is, since they are now uncommon, here is a brief explanation from Wikipedia:Ī pager is a wireless telecommunications device that receives and displays numeric or text messages, or receives and announces voice messages. With this setup you can receive pager messages from all pager users on the system. The RTL-SDR software defined radio combined with SDRSharp, and a POCSAG/Flex capable decoding application can be used to decode pager messages.

#Pocsag pager software driver#