How to measure cable loss using spectrum analyzer - Testing Cable Loss using Spectrum Analyzer 1.

 
as the spectrum analyzer, and the two units track the same frequency. . How to measure cable loss using spectrum analyzer

This video demonstrates the setup and use of an example jig to. Measure a CableConnector Loss. An ideal lossless cable would have an delta function impulse. It indicates, "Click to perform a search". Make sure it is not touching to the outer layer. This video demonstrates the setup and use of an example jig to. spectrum analyzer screen with the proper settings. It indicates, "Click to perform a search". ) via an optical spectrum analyzer (OSA), something not typically viable. This is important because it shows how much bandwidth (BW) a signal occupies PRTG Professional Wi-Fi Analyzer, a component of PRTG, can analyze APs, load, traffic, signal strength and availability in your wireless network Oscilloscopes and spectrum analyzers are two of the most important instruments in any electronic laboratory A fast FFT analyzer will show a flat. A swept frequency measurement using a network analyzer (NA) determines the insertion loss and return loss of the cable assembly in the desired frequency band of operation. View My Dashboard . This reflection path is used to measure the return loss of the CUT port. How to Measure Insertion Loss N9344C, N9343C, N9342C Handheld Spectrum Analyzers Keysight. iVA Cable & Antenna Analyzer System, Type N male connector with Standard Accessory Kit iVA-0627A-PK-02 iVA Cable & Antenna Analyzer System, Type N male connector with Premium Accessory Kit Note Change A to B for 4. The screenshot below shows the effect of the internal attenuator and pre-amplifier settings on the DANL of the spectrum analyzer. Most importantly, a test engineer should be familiar with various types of precision connectors, adaptors and cables used in these measurements. Cableloss(dB per 100ft) k1 xF (MHz) k2 x F (MHz) CLF x F(GHz) Alternatively, you could use this formula. The tinySA contains all the components of a conventional heterodyne swept spectrum analyzer. The calibrator fits 12" diameter microphones and has selectable 94dB and 114dB output with 0. Bird RF Meter App. As far as power measurement is concerned, spectrum analyzer displays power levels with accuracy of approx. A magnifying glass. Now that we know the frequency step size, we can calculate the. Add to Cart Add to Quote RF Adaptor Kit. Conventional test setup requires an external bridge Figure 3. Built-in Calibration Signal GeneratorWhen not used as Spectrum Analyzer it can be used as Signal Generator, MFHFVHF sinus output between 0. The coaxial tester looks for a particular frequency for a valid internet signal. No tuner is required. You can view time-varying spectral information by using the Spectrogram Mode of the spectrum analyzer. Similarly, the return port of the bridge is connected to a probe detector, which is attached to a cable connected to B input port of the network analyzer. The BOXA-TEST has a 51 load and this was used to measure the cable loss. ) via an optical spectrum analyzer (OSA), something not typically viable. No tuner is required. Spectrum analyzer with Tracking Generator (TG) Steps 1)Turn on Spec An and attach adapters to the tracking generator (TG) output and RF Input. This application note covers making a simple loss measurement on a coaxial cable with BNC connectors. - 0. This could impact wireless device sensitivity significantly. So the generator sends a signal out to the DUT. Power On the Site Master and press the MODE key. The BOXA-TEST has a 51 load and this was used to measure the cable loss. Items needed. The BOXA-TEST has a 51 load and this was used to measure the cable loss. Optimize Sensitivity When Measuring Low-level Signals. ) More FOA Standard FOA-2 Testing Loss of Fiber Optic Cables, Single Ended, (Insertion Loss, TIA FOTP-171, OFSTP-7, , ISOIEC 14763) More. A spectrum analyzers ability to measure low-level signals is limited by the noise generated inside the spectrum analyzer. Spectrum analyzer. spectrum analyzer screen with the proper settings. This video demonstrates the setup and use of an example jig to. To measure 50 cables, connect the analyzer directly to one end of the cable as in the cases cited above. 1 to 32 MHz. About Triplett Tools Triplett SLM400-Kit Sound Level Meter and Calibrator Kit It meets the IEC 61672-1 type 2, ANSI S1. Quality vibration analyzer meter portable balancer vibrometer - find quality Small Meter, Testing Equipment & Small Meter from Dongguan Lonroy Equipment Co. Set the low-end frequency on your source and input this into the feedline. For those not able to couple light into a fiber, the use of a free space light measurement jig provides a means of measuring the properties of free space light (like wavelength, power, peaks, SMSR, noise, etc. View My Dashboard . For conducted measurement instead of antennas you use a LISN (line impedance stabilization network). Method1 Signal Generator Power Meter Generate about 0 dBm of power from the Signal Generator and measure the same on the Power Meter e. Align the satellite dish on a provisional basis. Also called power meters or wattmeters, these devices measure parameters such as true power (watts), power factor, harmonics, and efficiency. The wide analysis bandwidth (up to 8. A magnifying glass. An ideal lossless cable would have an delta function impulse. The BOXA-TEST has a 51 load and this was used to measure the cable loss. 8-IN-1 ENVIRONMENTAL METER WITH SOUND - (EM400) This meter is used to measure noise as well as other environmental parameters. So the generator sends a signal out to the DUT. Procedure Step 1. The X-Series signal analyzer dynamically tracks your measurements and only applies corrections to the states where needed. Using probes with a Spectrum. Add to Cart Add to Quote Rack Mount Kit. In this example, the SSA3000X spectrum analyzer will be used to characterize a 450 MHz low-pass filter. Connect the RF coupler coupled (CPL) connection to the RF Input of the DSA. OSCIUM WiPry Spectrum Analyzer. Use the analyzer readings to compute the loss of the tuner. Alternately, you can use two adapters a short cable as a reference assembly to normalize the display before making cable measurements. Hook your spectrum analyzer to the coupled port, and leave the "load" port of the directional coupler open circuited. WEB DEMO. The normalize function enables direct measurement of cable loss. The screenshot below shows the effect of the internal attenuator and pre-amplifier settings on the DANL of the spectrum analyzer. if you want to see more reflections leave the end of the wire open or short it. Connect the modem to a C or U terminal pair on the CR6, where the pair has been configured for serial IO. Calibrate the N9322C BSA with the Keysight N9311x-201 OSL calibra- tor in order to eliminate system error and tem- perature drift errors 3. Handheld Spectrum Analyzer MSA438TG. It indicates, "Click to perform a search". ) via an optical spectrum analyzer (OSA), something not typically viable. Set the start and stop frequencies F1 and F2. Spectrum Analyzers. Antenna or other component to test. As shown in Figure 11, the return loss bridge is the subsystem that allows reflections of the generated signal to be detected by the spectrum analyzer. Spectrum analyzer converts time domain signals into frequency domain for display and analysis. A magnifying glass. Select adapters that convert N-type (inout connectors on most. Hint 3. The BOXA-TEST has a 51 load and this was used to measure the cable loss. For conducted measurement instead of antennas you use a LISN (line impedance stabilization network). The tracking generator generates a signal at the same frequency that the spectrum analyzer is measuring at any given moment (it tracks the spectrum analyzer measurement). Cable loss K1 x sqrt (F) K2 x F (dB100 feet) Where, K1 is the resistive loss constant. For those not able to couple light into a fiber, the use of a free space light measurement jig provides a means of measuring the properties of free space light (like wavelength, power, peaks, SMSR, noise, etc. This loss of dynamic range suggests that there is too much input power applied to the amplifier. This application note covers making a simple loss measurement on a coaxial cable with BNC connectors. For those not able to couple light into a fiber, the use of a free space light measurement jig provides a means of measuring the properties of free space light (like wavelength, power, peaks, SMSR, noise, etc. Insert cable between generator and analyzer. The R&SFSW85 signal and spectrum analyzer features a YIG preselector for frequencies between 8 GHz and 85 GHz, providing image-free spectrum analysis. Calibrator output frequency is 41kHz. Figure 4 Reference cable insertion loss before normalization. May be different than image. 5 GHz Spectrum Analyzer. Voltage and current are difficult to measure directly at high frequencies, so. spectrum analyzer screen with the proper settings. The explanation is the divided into amplifier mode and converter mode. So the generator sends a signal out to the DUT. As a check, first terminate the cable in 50 ; the SWR reading should be very close to 1. spectrum analyzer screen with the proper settings. 0 GHz DUT Z load0. To measure 50 cables, connect the analyzer directly to one end of the cable as in the cases cited above. Measurement frequency 50kHz to 3. Voltage and current are difficult to measure directly at high frequencies, so. Clean all connectors with a lint free swab and IPA. OTG USB communication port for connection to Bird power . Figure 3. Equipment Required - a signal generator - a power meter - a power sensor - the cable under measurement. Video is not available. CAUTION The input of the spectrum analyzer cannot tolerate large signals; before you. That is, measure the DC output voltage, at the operating. RF absorber chamber and a noise measurement was made using a spectrum analyzer, with and without the HDD connected. - Spectrum analyzer with Tracking Generator (TG) Steps 1)Turn on Spec An and attach adapters to the tracking generator (TG) output and RF Input. This removes the need to have the cable-to-cable adapter. Using standard functions, AQ6370D can maintain its high optical performance within a couple of minutes so that you can quickly start a measurement. Keysight&x27;s U9361 RCal receiver calibrator enables you to perform an accurate and reliable calibration for your spectrum analyzer signal analyzers using the following steps Connect the RCal to your signal analyzer via a high-power USB port. We can calibrate the cable losses before measuring any DUT by using the same setup as shown in. The gain measured 31 dB. ) via an optical spectrum analyzer (OSA), something not typically viable. This application note covers making a simple loss measurement on a coaxial cable with BNC connectors. No tuner is required. Next the test cable was measured with the BOXA-TEST on the end. ) via an optical spectrum analyzer (OSA), something not typically viable. 5 lbs. Select adapters that convert N-type (inout connectors on most. 17 In-creasing the analyzer attenuation by 10 dB (for a reference level of -10. The spectrum analyzer has a VB1020 option and utility kit that helps with antenna design and characterization. As a check, first terminate the cable in 50 ; the SWR reading should be very close to 1. - 0. spectrum analyzer screen with the proper settings. SK-6000-TC, 1 MHz- 6 GHz Cable and Antenna Analyzer. Return loss of electronic parts or circuit can be measured. As the name is telling you it is designed for the range of Wifi signals i. Built-in Calibration Signal GeneratorWhen not used as Spectrum Analyzer it can be used as Signal Generator, MFHFVHF sinus output between 0. Measure the . The following stuff on spectrum analyzer measurements is mostly taken from a 25 year-old . 5 lbs. Figure 3 Measuring reference cable 3) Adjust Span of scan for frequency range of interest. RF spectrum in a limited span of time, converting the information using the . For reference, a 20 dB system return loss measurement is considered very efficient as only 1 percent of the power is returned and 99 percent of the power is transmitted. The DSA815 distinguishes between signals with a frequency difference as little as 10 Hz. Find out our location and the satellites. measurement of S21 insertion loss and S11 return loss. No tuner is required. Therefore, the average insertion losses in this cable at this frequency range are. This is a simple formula that you can use to calculate rf cable loss if you dont have a cable-antenna analyzer. if you want to see more reflections leave the end of the wire open or short it. Easily troubleshoot your signal analysis (spectrum analysis) with one-button measurements in Keysight RF spectrum analyzers and the broadest set of application-specific software for industries such as 5G, IoT, automotive, and more. Enable the tracking generator output. Press the LEVEL key on the front panel. Add to Cart Add to Quote RF Adaptor Kit. spectrum analyzer screen with the proper settings. This removes the need to have the cable-to-cable adapter. It is no longer sold but many are still in service as they were built to last a lifetime. ) Cable loss measurement. K2 is the dielectric. It is also possible to use two antennas (Tx and Rx), a signal generator and a Spectrum analyzer. Built-in Calibration Signal GeneratorWhen not used as Spectrum Analyzer it can be used as Signal Generator, MFHFVHF sinus output between 0. Calibrate the N9322C BSA with the Keysight N9311x-201 OSL calibra- tor in order to eliminate system error and tem- perature drift errors 3. Equipment To measure the VSWR, you will need the following 1. It indicates, "Click to perform a search". Choose the right frequency band, send a signal in this band and measure the received power, then. Setting up the Measurement Frequency using Start . Based on the conversion of time domain waveform to the frequency domain using digital signal processing (real-time spectrum analyzer Although the SSA3021X has a tracking generator option that permits swept-frequency analysis of RF response, thats just not the same thing The spectrum analyzer software "MCS" for PC, MAC. Set up the analyzer to take measurements. 16c shows the impulse response of a long cable, where the long delay of the cable has been removed using a NWA port extension. A LISN3 is a low-pass. This video demonstrates the setup and use of an example jig to. spectrum analyzer screen with the proper settings. - Alternately, you can use two adapters a short cable as a reference assembly to. Optimize Sensitivity When Measuring Low-level Signals. ) can cascade S-parameters of multiple devices to predict system performance can compute H, Y, or Z parameters from S-parameters if desired can easily import and use S-parameter files in our electronic-simulation tools Incident S 21 Transmitted S11 Reflected S 22 Reflected. It measured 4. This video demonstrates the setup and use of an example jig to. Antenna or other component to test. as the spectrum analyzer, and the two units track the same frequency. The trace stored on the face of the spectrum analyzer will be approximately the "0 dB return loss" trace. As far as power measurement is concerned, spectrum analyzer displays power levels with accuracy of approx. No tuner is required. sculptra vs filler citrus county population 2021. RF Adaptor Kit RF Cable and adaptor kit. 5 dB. "> aquatic therapy atlanta. MER adjustment and polarization. Then terminate the cable in 25 and 100 and measure ,. 16c shows the impulse response of a long cable, where the long delay of the cable has been removed using a NWA port extension. Phase measurements. relate to familiar measurements (gain, loss, reflection coefficient. - 0. In this video wei will show current sensing optionsand how to measure current using a power analyzer and CT. For those not able to couple light into a fiber, the use of a free space light measurement jig provides a means of measuring the properties of free space light (like wavelength, power, peaks, SMSR, noise, etc. A magnifying glass. SK-6000-TC, 1 MHz- 6 GHz Cable and Antenna Analyzer. An ideal lossless cable would have an delta function impulse. Make sure to remove any contamination, dirt, or metallic flakes in and around mating surfaces. Customer . Then terminate the cable in 25 and 100 and measure. Cableloss K1 x sqrt (F) K2 x F (dB100 feet) Where, K1 is the resistive lossconstant. It provides an introduction to reflection measurement, explains the benefits of using the N9322C for reflection measurement with an example of how to measure the return loss and VSWR of an antenna. The default return loss scale for Tektronix USB spectrum analyzers is 10 dB to -40 dB since this falls into the zone for most measurements and fits well in a standard display. When setting up the spectrum analyzer for any EMC measurement, careful choice of internal attenuator settings is essential. Select adapters that convert N-type (inout connectors on most spectrum analyzers) to the cable type you are testing. The BOXA-TEST has a 51 load and this was used to measure the cable loss. This video tackles how to use the RIGOL spectrum analyzer to measure an antenna. Use the analyzer readings to compute the loss of the tuner. 16c shows the impulse response of a long cable, where the long delay of the cable has been removed using a NWA port extension. if you want to see more reflections leave the end of the wire open or short it. Testing Cable Loss with a Spectrum Analyser. The screenshot below shows the effect of the internal attenuator and pre-amplifier settings on the DANL of the spectrum analyzer. A magnifying glass. In calibrating a spectrum analyzer, it&x27;s important to verify that the. The AQ6375 achieves high speed measurements with high accuracy, resolution and sensitivity, even. Customer . if you want to see more reflections leave the end of the wire open or short it. A review of spectrum analyzer settings that can be optimized for measuring low level signals along with how to use noise floor extensions to maximize its sensitivity is covered. When setting up the spectrum analyzer for any EMC measurement, careful choice of internal attenuator settings is essential. 1 Test method and setup The output power from a radio device in transmit mode is easily measured with a spectrum analyzer in the simple hardware (HW) test setup shown in Figure 1. It does this in the entire range of the instruments frequency bandwidth. A magnifying glass. measurements Press Mode, Spectrum Analyzer. Choose the right frequency band, send a signal in this band and measure the received power, then. Insertion loss measurement setup when TMA is in line. A well-publicized way of measuring the matched loss of a cable is to measure the magnitude of the reflec-. We have a wide variety of coaxial cables for each frequency band, connector and length. In an FFT-based spectrum analyzer, the signal first goes to an analog to digital converter (ADC). Antenna gain dB measured level space loss 2. Use the analyzer readings to compute the loss of the tuner. You have new quote information. Search Spectrum Analyzer Vs Signal Analyzer. Most importantly, a test engineer should be familiar with various types of precision connectors, adaptors and cables used in these measurements. apartments for rent in fredericksburg va, beachbody login

Spectrum analyzers offer a number of fundamental measurements, which can be valuable in interpreting and analyzing complex signals and systems under test. . How to measure cable loss using spectrum analyzer

Measuring Return Loss. . How to measure cable loss using spectrum analyzer female reference photo

Connect the negative end of the multimeter probe to the center wirepin at one side of the coax. The RSA3000 and RSA3000E Series combine High Performance swept analysis and Real-Time performance (9. Next the test cable was measured with the BOXA-TEST on the end. Use the analyzer readings to compute the loss of the tuner. Configuration for measuring cable loss using FieldFox and a USB power sensor. As far as power measurement is concerned, spectrum analyzer displays power levels with accuracy of approx. In this example, the SSA3000X spectrum analyzer will be used to characterize a 450 MHz low-pass filter. 5 dB. Alternately, you can use two adapters a short cable as a reference assembly to normalize the display before making cable measurements. spectrum analyzer screen with the proper settings. Then terminate the cable in 25 and 100 and measure. Then measure (or calculate) the noise power. Select FREQ-CABLE LOSS using the UpDown arrow key and press ENTER. 1 Test method and setup The output power from a radio device in transmit mode is easily measured with a spectrum analyzer in the simple hardware (HW) test setup shown in Figure 1. Select FREQ-CABLE LOSS using the UpDown arrow key and press ENTER. It is useful to measure the spectrum powers of both the known and unknown signals in an electrical. The front-end of the Voyager analyzer features standard USB Type-C connectors that support USB 2. Modern instruments use digital processing to handle several of the traditional IF functions. This reflection path is used to measure the return loss of the CUT port. 04 Keysight Measure Cable and Antenna Using the N9322C Basic Spectrum Analyzer (BSA) - Application Note Figure 2. Antenna gain dB measured level space loss 2. Spectrum analyzer is the common tool for any RF engineer. Clean all connectors with a lint free swab and IPA. You must know that the spectrum analyzer functions by scanning the needed frequency span from low to high end of the necessary range. For all SN measurements, measure the absolute power level of the signal using a marker. Spectrum analyzers sweep across the frequency range in discrete steps. RF Analyzer Test Kits. A review of common sources of errors with a focus on mismatch uncertainty, which can be a significant contributor to total measurement uncertainty. For those not able to couple light into a fiber, the use of a free space light measurement jig provides a means of measuring the properties of free space light (like wavelength, power, peaks, SMSR, noise, etc. 5 inch floppy drive ready to record. Cable Loss function measures insertion loss of the cable system over a given frequency range. - Alternately, you can use two adapters a short cable as a reference assembly to normalize the display before making cable measurements. Cables and connectors can have a dramatic effect on the accuracy and validity of measurements on additional. The trace stored on the face of the spectrum analyzer will be approximately the "0 dB return loss" trace. Connect RF Explorer Spectrum Analyzer to the computer USB port. Cable loss (dB per 100ft) k1 xF (MHz) k2 x F (MHz) CLF x F (GHz) Alternatively, you could use this formula. The reflection from the DUT is coupled by the coupler to the spectrum analyzer input and its power is measured. R&SFPC-K42 Vector network analyzer measurements (with R&SFPC1500 only). 2)Connect the reference cable to the TG out and RF In. It indicates, "Click to perform a search". Spectrum analyzer is the common tool for any RF engineer. iVA-0627B-NC iVA Cable & Antenna Analyzer System, 4. 3 x PRF. Required Two N-type to BNC Adapters. For those not able to couple light into a fiber, the use of a free space light measurement jig provides a means of measuring the properties of free space light (like wavelength, power, peaks, SMSR, noise, etc. Clean all connectors with a lint free swab and IPA. spectrum analyzer screen with the proper settings. A spectrum analyzer (SA), sometimes also called a Signal Analyzer, is a device used to observe signals in the frequency domain, that is, to view the frequency components of a signal signal (referred to as the video signal because it was used to deflect the electron beam in the original analog spectrum analyzers) comes out bandwidth filter. The DSA815 distinguishes between signals with a frequency difference as little as 10 Hz. Connect the cable-under-test to test to RF input. - Alternately, you can use two adapters a short cable as a reference assembly to. An ideal lossless cable would have an delta function impulse. A magnifying glass. assuming 10 dB pads cable loss 5 dB -15 dBm (this the total cable path loss). A swept frequency measurement using a network analyzer (NA) determines the insertion loss and return loss of the cable assembly in the desired frequency band of operation. Measuring TX carrier output power is the most straightforward of all RF measurements. This application note covers making a simple loss measurement on a coaxial cable with BNC connectors. Spectrum analyzer is the common tool for any RF engineer. spectrum analyzer screen with the proper settings. The received frequency spectrum is slowly swept through a range of pre-selected frequencies, converting the selected frequency. Similarly, the return port of the bridge is connected to a probe detector, which is attached to a cable connected to B input port of the network analyzer. AirMagnet-supported wireless network adapter(s) or Aircheck G2EtherScope nXG with AirMapper (recommended) Optional an AirMagnet Spectrum XT Adapter and license (required for viewing spectrum data and heat map; Survey PRO only). Select adapters that convert N-type (inout connectors on most. The AQ6375 achieves high speed measurements with high accuracy, resolution and sensitivity, even. The front-end of the Voyager analyzer features standard USB Type-C connectors that support USB 2. Get 247 customer support help when you place a homework help service order with us. The BOXA-TEST has a 51 load and this was used to measure the cable loss. Thus the loss is represented by the S-parameter S21 measured via a two-port connection. SK-6000-TC, 1 MHz- 6 GHz Cable and Antenna Analyzer. It is used for viewing RF signals in frequency domain. Connect the RF input of spectrum analyzer to Ante nna 2. As far as power measurement is concerned, spectrum analyzer displays power levels with accuracy of approx. 2) Connect the reference cable to the TG out and RF In. Cable Loss function measures insertion loss of the cable system over a given frequency range. Then terminate the cable in 25 and 100 and measure ,. The complete calibration is done using software and calibration standards included with the analyzer. This application note explains the basics of NF measurement as well as NF measurement methods using a spectrum analyzer. Enable the tracking generator output. It is referred to the input and output of a module. No tuner is required. Make 5G field test a reality with wide analysis bandwidth up to 120 MHz. Trace averaging and minmax hold are the two most common trace measurements. spectrum analyzer screen with the proper settings. Figure 2. You have new quote information. Most importantly, a test engineer should be familiar with various types of precision connectors, adaptors and cables used in these measurements. Spectrum analyzer is the common tool for any RF engineer. Connect a cable to the TG output of the analyzer 3. A spectrum analyzer with a tracking generator can be a useful piece of test gear. Note the handy 3. To measure 50 cables, connect the analyzer directly to one end of the cable as in the cases cited above. The wider the bandwidth, the more noise is measured for each data point. A Cable Loss measurement is usually made at the installation phase to ensure that the cable loss is within manufacturer&x27;s specification. ) via an optical spectrum analyzer (OSA), something not typically viable. Press Amplitude > Auto Scale to optimize the amplitude scale automatically 4. Make 5G field test a reality with wide analysis bandwidth up to 120 MHz. Measuring TX carrier output power is the most straightforward of all RF measurements. 13a is an example. R&SFPC-K42 Vector network analyzer measurements (with R&SFPC1500 only). Select soft key 1 (10dBdiv) as thedesired decibels per division ratio, as shown in Figure 4 and then press the. This application note covers making a simple loss measurement on a coaxial . It indicates, "Click to perform a search". Then terminate the cable in 25 and 100 and measure. As far as power measurement is concerned, spectrum analyzer displays power levels with accuracy of approx. 14 Effects of using a tuning stepwidth that is too large Left Input signal is completely lost;. Optimize Sensitivity When Measuring Low-level Signals. Impedance matched coaxial cable to connect coupler to the tracking generator. It is designed for researchers and engineers who have been struggling with inadequate test equipment to measure in these long wavelength ranges. No tuner is required. The discharge levels from the LISN can damage the front end of the spectrum analyzer. We and our partners store andor access information on a device, such as cookies and process personal data, such as unique identifiers and standard information sent by a device for personalised ads and content, ad and content measurement, and audience insights, as well as to develop and improve products. 5dB accuracy. For those not able to couple light into a fiber, the use of a free space light measurement jig provides a means of measuring the properties of free space light (like wavelength, power, peaks, SMSR, noise, etc. A Cable Loss measurement is usually made at the installation phase to ensure that the cable loss is within manufacturer&39;s specification. - 0. the output level of the tracking generator less cable and connector losses. . chicago craigslist free stuff