[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] USRP2-FLEX2400 Transmit and Receive problems

From: Joseph Wamicha
Subject: Re: [Discuss-gnuradio] USRP2-FLEX2400 Transmit and Receive problems
Date: Wed, 01 Sep 2010 05:00:39 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20100713 Thunderbird/3.0.6

Hi Marcus,

I get exactly the same behaviour. I have finally traced the problem to an old Flex2400 using an internal clock rather than the usrp2 clock. I'll need to do some re-soldering and burn-db-eeprom with USRP1 and hopefully this should fix the problem:

On 01/09/2010 03:20, Marcus D. Leech wrote:
On 08/31/2010 01:48 PM, Joseph Wamicha wrote:
Hi Leech,

Thank you for your response. I'm using 2.4 GHz characterized antennas. No I'm not feeding the signal directly into the USRP2. I have a 2.4GHz resonant monopole antenna on the signal generator and another 2, 2.4GHz resonant antennas on both the RX and TX/RX SMA connectors of the FLEX2400.

How close are the antennae?

What parameters did you pass to usrp2_fft.py?   If you look closely at the spectrum, it looks
  *perfectly* symmetrical about DC, which should never be the case if all the "pieces" agree
  that this is a complex signal.

What happens if you tune usrp2_fft.py a few Khz away from 2.4GHz exactly?

reply via email to

[Prev in Thread] Current Thread [Next in Thread]