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Re: [Discuss-gnuradio] help -- how to implement transmitting periodic on

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] help -- how to implement transmitting periodic on/off tones
Date: Mon, 29 Nov 2010 14:22:26 -0500
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On 11/29/2010 01:35 PM, Steven Clark wrote:

One would think something like this would work, but I've noticed that even if you're sending 0's to your usrp sink, the transmitter still puts out some amount of power (plenty strong enough to be detectable via a spec-an). This power goes away if you disable the transmitter via software. Does anybody know anything about this phenomenon?

Slight LO leakage out of the mixer?

Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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