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From: | Matt Ettus |
Subject: | Re: [Discuss-gnuradio] TVRX LNA |
Date: | Fri, 21 Dec 2007 11:02:34 -0800 |
User-agent: | Thunderbird 2.0.0.9 (X11/20071115) |
Nirali Patel wrote:
Hi, Does the TVRX board have a front-end gain stage before the signal is downconverted to IF? I will be using the TVRX and the USRP to capture over the air HDTV signals in a mobile field test. I looked at the schematic for the TVRX board and it looks there isn't a discrete LNA on the board. Does the MT4937 chip have an integrated LNA before the down conversion to IF? I've looked at the tuner datasheet but couldn't tell for sure if there was an LNA.
The TVRX has an 8-10 dB noise figure.
Matt
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