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Re: [Discuss-gnuradio] Re: Re: USRP2 and external clock (from GPS recei
From: |
Johnathan Corgan |
Subject: |
Re: [Discuss-gnuradio] Re: Re: USRP2 and external clock (from GPS receiver) |
Date: |
Thu, 19 Feb 2009 17:44:00 -0800 |
I've tested this here in my lab, using a signal generator for the SMA
reference input.
With firmware modified to automatically set the clock source to the
external reference, and to generate a test 10 MHz output waveform, I
get a good lock when the external reference is anywhere between -13dBm
and 10 dBm (142mV p-p to 2V p-p).
This is using revision 10467 for both the FPGA and the firmware.
Johnathan Corgan
Corgan Enterprises LLC
- [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Changkyu Seol, 2009/02/17
- Re: [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Eric Blossom, 2009/02/18
- Re: [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Matt Ettus, 2009/02/18
- [Discuss-gnuradio] Re: USRP2 and external clock (from GPS receiver), Changkyu Seol, 2009/02/19
- Re: [Discuss-gnuradio] Re: USRP2 and external clock (from GPS receiver), Matt Ettus, 2009/02/19
- [Discuss-gnuradio] Re: Re: USRP2 and external clock (from GPS receiver), Changkyu Seol, 2009/02/19
- Re: [Discuss-gnuradio] Re: Re: USRP2 and external clock (from GPS receiver), Matt Ettus, 2009/02/19
- Re: [Discuss-gnuradio] Re: Re: USRP2 and external clock (from GPS receiver),
Johnathan Corgan <=
- [Discuss-gnuradio] Re: Re: Re: USRP2 and external clock (from GPS receiver), Changkyu Seol, 2009/02/19
- [Discuss-gnuradio] Re: Re: Re: USRP2 and external clock (from GPS receiver), Changkyu Seol, 2009/02/20
- [Discuss-gnuradio] Re: Re: Re: USRP2 and external clock (from GPS receiver), Changkyu Seol, 2009/02/20
- Re: [Discuss-gnuradio] Re: Re: Re: USRP2 and external clock (from GPS receiver), Eric Blossom, 2009/02/20
Re: [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Douglas Geiger, 2009/02/19
- Re: [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Matt Ettus, 2009/02/19
- Re: [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Douglas Geiger, 2009/02/19
- Re: [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Matt Ettus, 2009/02/19
- Re: [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Douglas Geiger, 2009/02/19
- Re: [Discuss-gnuradio] USRP2 and external clock (from GPS receiver), Matt Ettus, 2009/02/19