Re: [Discuss-gnuradio] A simple analogue question.
If I have two signals entering a receiver, both with a power of 0 dBm, what would be the total input power seen by the receiver? Is it 3 dBm or 6 dBm? Anywhere between 6dBm and -174 + 10*log(measurement bandwidth) dBm, assuming a 50-Ohm system at room temperature. JD 'correlation' B. -- LART. 250 MIPS under one Watt. Free hardware design files. http://www.lartmaker.nl/ ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] A simple analogue question.
Hi everyone. I was wondering if someone could please answer the following question? If I have two signals entering a receiver, both with a power of 0 dBm, what would be the total input power seen by the receiver? Is it 3 dBm or 6 dBm? Thanks. Sebastiaan -- Sebastiaan Heunis Tel: +27 72 950 9370 ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] A simple analogue question.
On Sun, Apr 11, 2010 at 10:12 AM, Sebastiaan Heunis sheu...@gmail.com wrote: Hi everyone. I was wondering if someone could please answer the following question? If I have two signals entering a receiver, both with a power of 0 dBm, what would be the total input power seen by the receiver? Is it 3 dBm or 6 dBm? Bringing it back to power instead of ratios helps clear this up. Both transmitters are emitting 1mW, for a total input power of 2mW. Calculating dBm on that yields: 10*log10(2mW/1mW) = 3dBm Hope this helps! Thanks. Sebastiaan Brian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
