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NMA-ISM

更新时间: 2024-09-30 05:54:03
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描述
NMA WIFI NOISE MODULES 0.5 GHZ TO 6 GHZ

NMA-ISM 数据手册

  
Return to Noise Source Index  
url: http://www.micronetics.com/Noise_Source_Amplified/WiFi_ISM.pdf  
NMA WIFI  
NOISE  
MODULES  
0.5 GHZ TO 6 GH  
Z
D
ESCRIPTION  
Micronetics NMA-WiFi series products  
are specifically designed to perform  
interference tests for 802.11a, 802.11b  
and ISM products in general. The  
Gaussian output can simulate noise  
from other ISM devices sharing the  
same spectrum as well as thermal  
noise. By setting up an exact signal to  
interference ratio, one can measure bit  
error rate (BER) as well as test how  
well the system operates under real  
world conditions in general.  
The devices consist of a stable noise  
source and multistage amplifier for high  
output Gaussian noise output. The  
units have a built-in voltage regulator  
so output is stable even if your supply  
voltage is not. They can be ordered  
with optional TTL control to switch the  
noise off or on from microprocessor  
control. Lastly, the units are calibrated  
for noise spectral density output cen-  
tered at each channel so you know pre-  
cisely your interference signal level.  
NMA WIFI OUTPUT CHARACTERISTICS  
MODEL*  
FREQUENCY  
NOISE OUTPUT LEVEL  
FLATNESS dBm/Hz Min. dBm/Hz Max.  
NMA-WiFi  
NMA-WiFi5  
NMA-ISM  
2.4 GHz-2.5GHz  
5.1 GHz-5.4GHz  
0.5 GHz-6.0GHz  
0.8 dB P-P  
0.8 dB P-P  
4.0 dB P-P  
-90.0  
-90.0  
-100  
-84  
-84  
-92  
Ordering:  
Example:  
-TTL indicates TTL control  
NMA-WiFi5-TTL  
S
PECIFICATIONS  
- Operating Temperature:  
o
-55 to +95 C  
Specification definitions:  
- Storage Temperature:  
o
Noise Spectral Density, No is the noise power normalized to a 1Hz bandwidth  
expressed in units of dBm/Hz  
-65 to +125 C  
- Supply Voltage:  
+15 VDC  
- Temperature Stability:  
Flatness is specified over the given frequency range. It is the decibel difference  
of the high peak to the low peak.  
o
.025 dB/ C  
Min Output Level is the threshold where the noise spectral density output must  
not fall below anywhere within the frequency range.  
- Output Impedance:  
50 ohm  
- Peak Factor: 5:1  
- VSWR: 1.5:1 max.  
- Calibration data in dBm/Hz  
Max Output Level is the threshold where the noise spectral density output must  
not fall below anywhere within the frequency range  
_______________________________________  
Calibration: The WiFi and WiFi5 modules are calibrated as noise spectral  
density output at spot frequencies corresponding to the center frequency of  
each 802.11a and 802.11b frequency. For Bluetooth or other ISM devices,  
specify the spot frequency points you desire. Data is supplied as a tabular  
print-out and is available in space delimitated text file format.  
MICRONETICS / 26 HAMPSHIRE DRIVE / HUDSON, NH 03051 / TEL: 603-883-2900 / FAX: 603-882-8987  
WEB: WWW.MICRONETICS.COM  
For more info EMAIL: noisesales@micronetics.com  

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