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Re: [Discuss-gnuradio] USRP Gain
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From: |
Eric Blossom |
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Subject: |
Re: [Discuss-gnuradio] USRP Gain |
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Date: |
Wed, 23 Jul 2008 08:04:13 -0700 |
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User-agent: |
Mutt/1.5.17 (2007-11-01) |
On Wed, Jul 23, 2008 at 07:45:57AM -0700, isaacgerg wrote:
>
> Is there any documentation on what the gain does for the USRP receive and
> transmit functions. Sometimes it seems like these values are meaningless.
Sometimes they are fixed. Have you queried the valid ranges for the
daughterboards you are using using bdev.gain_range()...
Outside of the Basic Tx and LF Tx, none of the d'boards have
adjustable transmit gain.
> Also, I am noticing that when I begin to Rx data, there is often a huge
> amplitude spike within the first 2k samples I Rx. Is this normal?
There's a known problem in the first ~1K rx samples when the USRP is
first enabled.
Eric