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172 Threads found on Receiver Sensitivity
You have SPL right, so you should be able to calculate the received power correctly. It's not 23 dBm (and neither 23dB). SNR is the ratio of received power and receiver sensitivity.
In a wireless link system, increasing the receiver SNR by increasing the TX output power is the ultimate solution. First try to improve the receiver sensitivity, and decrease the receiver frequency bandwidth to exactly value that the RF system needs. Second, try to improve the antenna gains on both sides, RX and TX. And (...)
Hi to all... If you ever wish to build simple but solid FM radio in classic style here is schematic receiver is tested and work well if you use outside antenna.
The thread sounds confused. You are apparently reporting a violation of harmonic or spurious emission requirements ("radiation measurement"). It's neither related to receiver sensitivity nor transmitter output power, at least not directly. You did however not tell at which frequency the limit values have been exceeded. Neither information about
Hi All, How does the receiver sensitivity depends on moduletion type and coding rate for a fixed receiver bandwidth? Ex: For Rx BW 5 MHz, sensitivity is given as following for different modulation and coding rate. 5 MHz BW Modulation Coding rate Receive sensitivity 2xQPSK (...)
Hi All, Can anyone tell me, for a given receive Band width, how the sensitivity changes based on coding rate and type of modulation? for Example: 5 MHz BW Modulation Coding rate Receive sensitivity 2xQPSK 0.75 -89 2xQPSK 0.5 -92 2xBPSK 0.5
jeez where do I start? Did you calibrate the signal power level accurately? I mean it woul be very easy to be off a few db with a stack of attenuators, and not precisely knowing the modulated transmit power. It does not seem to be ingress, since you would leak in a modulated signal at a higher level, thru a cover ***** or something, than your at
what will be the relationship between the ADC dymanic range and the receiver dynamic? Will the ADC dynamic range be the bottom neck of the receiver dynamic range? For example, I would like to design a receiver with (-90 dbm sensitivity and 5 dbm IIP3 with minimal SNR of 10), it will give a dynamic range of (...)
Commercial and amateur receivers work well with an input signal level of ~1 ?V. Some are a bit better, some not. Broadcast receivers are mostly happy with a level > 1?V. What sensitivity level is typical for a 10GHz LNB satellite receiver ?
Hi, I read an article on WiMax RF receiver sensitivity. It first gave SNR (2.9 dB) for QPSK signal. receiver NF is 5.5 dB, implementation loss 1 dB. Then, it said that for a 10-MHz desired channel, the QPSK sensitivity is ?94.6 dBm. Here is the link: I would like to kno
1. The noise contribution of each device in the signal path must be low enough that it will not significantly degrade the Signal to Noise Ratio. According to Friis noise figure equation, the biggest contributor to the noise figure of a receiver is the first component in the chain, which usually is the LNA .
Hi, Can anyone explain how measurements of signal to noise ratio (SNR) made? I read that a signal source is used to generate a signal and then at the output of the receiver, a voltmeter is used to measure the received signal level. But won't this method include noise as well, i.e. isn't it a signal plus noise (S+N) measurement, rather tha
Range will be short if: (a) transmitter is weak, or (b) receiver has low sensitivity. The antenna makes the most difference when sending or receiving. There is no easy way to make up for a poor antenna. What can we change in the router? About the only thing I've seen that I can change, is how secure is the antenna's threaded connector. I have a
Even for very basic receiver sensitivity and selectivity requirements, you would go for a 433 MHz receiver IC, or a special microcontroller with built-in receiver circuit.
It will be transmitted to infinity. Your receiver sensitivity and it's antenna then determines max usable distance transmitter can reach.
Can somebody help me to find IEEE standard for mm wave frequencies in Radio over fiber link? I am using a 30 GHz wave in my radio over fiber link and I need to know what should be the power of my transmitted data? In the receiver side I need to know which sensitivity is acceptable for the receiver. Your help is appreciated.
Hi, I have a differential input receiver and I want to calculate its sensitivity. So with a spectrum analyzer, peak detector, display units dBuV , I connect to each of the differential inputs. I see the center carrier and two sidebands (modulation signal). At each of the differential inputs I measure the sidebands . Now how do I add all four
Hi all guys, I am currently working on a simple radio communication simulator. The main idea is to calculate PER based on BER based on SNIR. At the moment I don't really like to be able to receive a lot of frame with power of arround -120 dBm (@434MHz) which sounds kind of unrealistic to me. SNIR ratio that I obtain is actually the value which i
hi I need to know how to start designing a digital AM receiver. I need a tool to help choose proper device in chain due to receiver standard parameters (Frequency, sensitivity, Dynamic Range, ...). I don't know how the structure must be and don't know what devices and ICs may be used. I have experience in digital and analog. I am (...)
Hi, The digital receiver sensitivity equation is as follows : sensitivity = KTB+NF+(Eb/No)*R/B Where B is the channel bandwidth This may be rewritten as : sensitivity=KTR+NF+(Eb/No) ( by ommitting B with B) So what if the filter bandwidth is >> signal bandwidth. This equation will surely be (...)