Noise Source Generator Calibrated (10 -1600 MHz; ~ 15 dB ENR, SMA) Noise Figure

Description: Wide-Band Noise Source (10 - 1600 MHz) Relisting of sold-out item Frequency (10 - 1600 MHz) ~15 dB ENR (Calibrated ENR values measured at 72.3°F against calibrated Agilent 346B noise source ) Supply voltage (16 - 28 V) Operating current ( < 10mA) RF OUT (*SMA Female) Power Connector ( BNC Female) Compatible with HP8970A/B and Ailtech/Eaton noise figure measuring instrumentsLow cost add-on for spectrum analyzers without a tracking generator (*May need additional high gain amplifiers)One-year conditional warrantyUsed by various universities, research and manufacturing facilities worldwideLow cost alternative to HP/Agilent noise sources for noise figure measurements Please note picture is of a stock item for illustration only. You will receive a similar-looking item but the frequency vs ENR values on the label may be different. *See our other listing if you want an N-type RF connector, or for noise source with integral RF amplifier stages. FAQ: Why can ’t I see my noise source on a spectrum an analyzer? Example: What dBm level would a 50 ohm noise source with noise of 15.5 dB ENR read on a 50 ohm spectrum analyzer in a 1 Hz RBW? To determine the dBm level that a 50-ohm noise source with a 15.5 dB ENR would read on a 50-ohm spectrum analyzer in a 1 Hz resolution bandwidth (RBW), follow these steps: Understand the ENR Concept: The ENR (Equivalent Noise Ratio) of a noise source is defined as:ENR (dB)=Noise Source Power (dBm)−Thermal Noise Floor (dBm) Calculate the Thermal Noise Floor: For a 50-ohm system, the thermal noise floor in a 1 Hz bandwidth is approximately -174 dBm. This is calculated using the formula:Thermal Noise Floor (dBm)=10⋅log⁡10(k⋅T⋅B)+30 where k is Boltzmann's constant (1.38×10−23 J/K1.38×10−23 J/K), T is the temperature in Kelvin (290 K), and B is the bandwidth (1 Hz).Thermal Noise Floor=10⋅log⁡10(1.38×10−23×290×1)+30 Thermal Noise Floor=10⋅log⁡10(4.002×10−21)+30 Thermal Noise Floor=−174 dBm Determine the Noise Source Power Level: Given the ENR is 15.5 dB, you can use this to find the noise source power:Noise Source Power (dBm)=ENR+Thermal Noise Floor Noise Source Power (dBm)=15.5 dB+(−174 dBm) Noise Source Power (dBm)=15.5−174 Noise Source Power (dBm)=−158.5 dBm Therefore, the 50-ohm noise source with a 15.5 dB ENR would read -158.5 dBm on a 50-ohm spectrum analyzer in a 1 Hz RBW. Note: Very few spectrum analyzers can read this low level without using a suitable pre-amp. --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Use Examples Since no active links are allowed on eBay as of Sept 15, 2017 please search: Google: "Signal Level Measurement with PowerSDR and External Transverters" by Dr. Carol F. Milazzo YouTube: KF5OBS #34: Noise Figure Measurement (Y Factor Method)KF5OBS #33: Filter Measurement using Noise Source * Please note the extended handling time listed for this item. Contact us if you have any questions.

Price: 269 USD

Location: Temecula, California

End Time: 2025-01-04T21:21:24.000Z

Shipping Cost: 10 USD