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34 Threads found on edaboard.com: About Receiver Sensitivity
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 (...)
Nobody uses 1MHz wide AM. Are you talking about something like 64-QAM ?
You'll also think about receiver bandwidth, sensitivity, signal-to-noise ratio...
The super-regen works by by increasing the Q of the (one) tuned circuit. So gain and selectivity increase at the same time. I agree that the Q of the single tuned circuit is high. Then it has a bandwidth at its peak that is much too narrow and does not have steep slopes away from the peak which causes poor selectivit
at 2.4 GHz you would need a large dish in excess of 3 metres to get a narrow ( less than 5 degree) beamwidth conversely, at 24GHz, a 4 degree beamwidth is achieveable with a dish of ~ 1 metre Im sure some one here knows the maths for working that out You havent really given us all much to go on to try and help you. How about explaining your
Sounds VCO Pulling Effect because of Doubler. PLL may not pull-in the carrier in high pulling effects and therefore VCO signal can have some ringings about carrier. I guess an isolation amplifier should be used before doubler.
Hi all - I have been reading quite a few papers about optical communication and came across several different graphs/results on receiver sensitivity. One example is, , page # 3. Does any one know how to plot the graph shown in page#3 of the above paper? I can't seem to find this fe
Hi all - I have been reading quite a few papers about optical communication and came across several different graphs/results on receiver sensitivity. One example is, , page # 3. Does any one know how to plot the graph shown in page#3 of the above paper? I can't seem to find this featur
Most RF engineers are thinking about receiver noise in terms of sensitivity. It's not surprizing to me that you didn't get satisfying answers at TI forum, because it's essentially focussed on application rather than RF IC design problems. Transceiver chips are designed to achieve good performance with minimal external frequency selection (...)
We talk about receiver, so: 1. NF/sensitivity 2. Selectivity, Co-channel rejection, Blocking 3. Probably flatness too
Only an RF System analysis (including radiated TX power and antenna gain) it will tell you the answer. Is related to a lot of system requirements that the receiver should met. As: sensitivity, intermods, blocking, etc, factors that are influenced by the transmitter in a half or full duplex RF system. Generally a duplexer gives about 50dB (...)
This is a standard procedure to get the all-channel radiated sensitivity, using as a reference a quiet channel (Reference Channel). I don't know what wireless system is about, but I would prefer when doing radiated sensitivity to use BER (bit error rate) instead FER (frame error rate). BER is direct related to SNR of the (...)
It's not about the antenna. It is about receiver noise floor that depends on the bandwidth of the receive channel. Signal to Noise Ratio SNR ::
If you ad an LNA with gain about 15dB and NF below 1dB, followed by a good coax cable, definitely you will get better sensitivity. Use the freeware program AppCAD to see the effect on sensitivity when add an LNA and cable to your receiver. After installation go to System-Signals/ NoiseCalc AppCAD
Hi, all As the formula says, sensitivity=-174+NF(dB)+10log(BW)(Hz)+SNR(dB), the noise is integarted in the bandwidth, but, as to the sensitivity level, it's for one tone? or the power level spreaded in the bandwidth? thanks in advance
Hi all; I am a sophomore student at a university and we have a term project for the course: "Analog Electronics". We will be doing a transceiver at public band level (28.-29.7). We have learned some information about components of transceiver, but I could not understand something for receiver circuitry. First of all We have two IF Amplifiers. W
Take care about one important parameter that is the data rate/freq deviation (and the relative receiver bandwidth). Working with low data rates the RX sensitivity varies a lot, so the achievable range is very different if you have 1kbps or 250kbps. Which kind of application are you working on? Mazz
sir, i am using tsop 1738 for receiving the ir beam which was generated at 38khz and transmitted by ir led and the output of tsop is always maintaining high at 5v....i am not able to know whether it is receiving the beam or not...i cant understand the problem so pl help me...
Dear all friends, I want to talk with you about the active antenna. It is said that the active antenna could improve the sensitivity of GPS receiver or FM receiver. Could someone tell me why? I remember that I have read one post about the active antenna on . The friend said that because active antenna (...)
I am working on FM receiver IC and I have some questions about sensitivity I saw different datasheets and they mentioned differently in sensitivity. Basically, I can see several of them in the following (1) dbm (2) dbuVEMF (3) uVEMF Can anyone tell me what is uVEMF and how can I convert it back to dBm as I need (...)