.2010 15:56, schrieb Jeffrey Lambert:
On 6/24/2010 5:11 AM, Sven Oliver Kreis wrote:
Hi Marcus,
...
But -13 to 20 is a bit much, isn't it?
It's not much at all, in fact, expect a lot more. Look at it only in
terms of dB, beccause the fact is, whenever you have a communications
Hi Marcus,
you are right. Usually it is a very strong signal. But the
specifications talk about 20 dBm tx power. And I receive -13 dBm at a
distance near zero. If I am not mistaken, that is a factor of about
2000(?). So 2000 times less than the ideal value.
(20 dB = factor 100) (-13 dB ~ factor 0.
Hi Jeffrey,
thanks for the advice. The standard power of USRP2 should be enough
for me, if I really get it :)
In the specifications for XCVR2450 it says 100mW or 20 dBm.
The jamming is already working, but a bit more power would be fine ;)
Yesterday I moved the micaz node around my USRP2 to find
Hi Josh,
thanks a lot. You were right. I ran another test with amp 0.1 and this
time it changed above 20 dB. Seems saturated.
The sample mismatch is on purpose.
My real purpose is to jam Zigbee communication between micaz nodes. So
I don't need a very smooth sinus, but a strong signal which di
Hi there,
I am using an USRP2 with Gnu Radio Companion 3.3 and XCVR2450 as
daughterboard. I created a simple signal generator with grc.
Signal Source (Sample Rate 12.5M, Waveform: Sine, Frequency: 1,
Amplitude also 1, Offset 0) connected to USRP2 Sink (Interpolation 128,
Frequency: 2,481GHz)
I a
