Re: [Discuss-gnuradio] Problem with receiving signal from satellite Thuraya-3

[Cheng Chi]

Hi,

I think it's TDMA/FDMA, not spread spectrum. Each channel is about 30KHz.

Best regards,

Cheng Chi

On Wed, Jan 29, 2014 at 10:17 AM, Marcus D. Leech <address@hidden> wrote:

On 01/28/2014 09:14 PM, Cheng Chi wrote:

Hi,

I am trying to collect signal from Thuraya-3. Here is the setup I used:

- USRP N210 + WBX

- LNA with 30dB gain (ZHL-1217MLN)

- Iridium Antenna (I don't have specific antenna for Thuraya right now. Since Iridium and Thuraya frequency bands are quite close, I suppose it would work more or less)

Center frequency: 1530MHz

Sampling rate: 10MHz

From the spectrum (attached), I can see the Inmarsat signal, but no sign of Thuraya signal. Anyone has suggestion about how to receive the thuraya signal?

Best regards,

Cheng Chi

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Is the Thuruya signal spread spectrum?

-- 
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org

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