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signal output of an antenna
Hi Rick
So far, I poke the rssi signal according to your advice:
- if the distance is far enough, the rssi shows a good variation according to the modulation signal.
- when I reduce the distance, this variation becomes smaller but is still in phase. the rssi signal...
u3280m forum -datasheet
Is it possible for a rf amplifier, the gain decreases with increased input signal (in heavily overload condition, far past the compression point)?. I don't have enough equipment to verify this behaviour.
antenna signal receiver
The chip I am using is the Philips (NXP) UAA3220, wired as a ASK superheterodyne receiver. I guess that the mixer stage, once overloaded, reacts oddly.
I also observe the same behaviour in a completely different system: a 125KHz RFID using Atmel U3280M(tag)...
strong antenna
I have a quite strange problem:
I am developing a ASK receiver at 433MHz, modulated by a digital stream at 4K baud. When the transmitter and receiver are quite near (about 40cm) , the receiver RF front end will saturated (I think so), and the demodulated output stops working...
Hi kenrbnj,
I'm afraid that you ran into a serious trouble with your scope. Try to search on Google, using "Tektronix U800" keywords, there are a lots of messages about this problem.
tds3000 firmware dump
Hello,
Just go to Tektronix site, and download the latest firmware (v3.39) for the TDS3000, and you automatically have TRIG + FFT functionalities FREE.
Bests
iar binary number
There were an application note in IAR website. unfortunally I don't see it anymore.
Basically, you can write a binary number using this trick
#define BIN8(s7,s6,s5,s4,s3,s2,s1,s0) (unsigned char)\
( s0 * 0x01 + s1 * 0x02 + s2 * 0x04 + s3 * 0x08 + \
s4 *...
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