novice question abt providing multiple frequencies feed

[virtualB738]

In setting up a new feed, hypothetically perhaps...
Can TWR, APP and Center feeds be provided from one scanner with the help of software , or is it as real that only one frequency can be received by a scanner at one time, therefore each ATC. frequency feed must originate from separate scanners and then all three feeds to liveatc.nrt separately. Via software? Newbie here.

[virtualB738]

Thanks Brad. Got it.

[RonR]

Out of curiosity, what feeds would you hypothetically be setting up?

Ron

[dave]

There is no commercially available scanner radio that will do what you describe.  However, we are actively ding what you describe with a combination of the following:

1) Raspberry Pi computer
2) RTL2832 SDR dongle
3) RTLSDR-Airband software
4) External antenna connected to RTL2832 SDR dongle

A single RTL dongle can tune up to 8 frequencies and provide a separate feed for each frequency.  The caveat, though, is that the RTL2832 SDR receiver can only tune a 2.5 MHz bandwidth.  What that means is that you have to pick a center frequency and then that dongle can only tune +/- 1.25 MHz from the center frequency. 

You can add a second dongle tuned to a second center frequency.  A single Raspberry Pi and RTLSDR-Airband can support up to two dongles per Pi.

So whether this is practical all depends on what frequencies you are trying to monitor.

Dave

[virtualB738]

Sorry about the late late reply.
Feed would be Port Columbus - KCMH/CMH and/or Indy Center. Uniden BCT15X may add another of lesser degree.

Problem, for now, cannot raise high to attic or mount externally the antenna (scanner world ANT135BNC). It sits on computer desk.

Am abt 12 Mile from KMCH.
*On the CMH TWR frequency, only hear the pilots, not ATC.
*Receive  CMH Approach very good .
*Receive Indy Ctr very well.

The info you provded Dave, is new to me so am looking into it i.e. still learning. Interesting project to say least.  Should probably checkout Universal Radio Inc.,  store in Columbus area.

Seems following website provides basic info i need for requirements ..  for now.

http://en.wikipedia.org/wiki/Raspberry_Pi
http://blog.pi3g.com/2013/04/raspberry-pi-sharing-a-scanner-with-the-network-even-windows/
https://www.adafruit.com/product/1497

1) Raspberry Pi computer
2) RTL2832 SDR dongle
3) RTLSDR-Airband software
4) External antenna connected to RTL2832 SDR dongle

Appreciate all replies and direction.

[J-LucB]

http://blog.pi3g.com/2013/04/raspberry-pi-sharing-a-scanner-with-the-network-even-windows/

This is for an image scanner. Not the same !