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From: | Martin Dvh |
Subject: | Re: [Discuss-gnuradio] output level of basic tx is very very low |
Date: | Mon, 22 Aug 2005 05:37:27 +0200 |
User-agent: | Debian Thunderbird 1.0.2 (X11/20050331) |
The output side of the transformer is not center tapped. The input side is. The input side center tap needs to connect to ground. On the ADT1-1WT and the ADT4-1T the center taps are on pins 2 and 5 respectively. That's why I connect both -- so that you could switch to the other transformer if you wanted. You would only want to do that for the RX side, though. So in short, there is no short. :)
Ok, that is clear. How about my calculation of the impedance. Did you have a change to look at those. 7 Ohm is a bit low when the minimum is 25. Or did I get my calculation wrong? Still this wouldn't account for the difference between 50 mV and the expected 1000 mV. greetings, martin
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