To measure power greater than +20 dBm an external attenuator is required. The display range of the instrument is -80 dBm to +80 dBm so therefore you can measure up to +80 dBm with a 60 dB external attenuator.
SC5237: DC to 4.0 GHz, 16.4 to 16.8 ohm 6dB +/- 0.25 dB SC5270: DC to 4.0 GHz, 40.66 to 41.1 ohm 20dB +/- 1.5 dB
This has to do with the COM settings. For signal standards, it is assuming that you are using COM1 and if you are not, it will be challenging. To change this, please see below: Go to Settings -> Control Panel -> System -> Device Manager -> Ports -> double click on USB to RS232 -> port settings -> advanced -> change COM number to 1 In HHST: Settings -> Communication -> COM1
The short answer is yes. The return loss of a cable & antenna system will be different if you are making a return loss measurement of a 15 dB antenna with two different cables. The return loss of the system is proportional to 2*CL (Cable Loss). System designers takes this into consideration when determining the specifications.
The maximum cable loss one should expect to have an accurate measurement is 10 dB or less. For measurements that exceed 10 dB, the uncertainty increases significantly. The 2 port cable loss measurement technique should be used in these cases.
No. If someone sends you a .csv file MST cannot be used to convert it back to a .vna file to be opened in MST.
No. The majority of TMAS for cellular antennas will block the RF signal from the Site Master so the sweeping signal will only go as far as the TMAS and not reach the antenna.
Yes but you need to be very careful that the RF from another Source is not going to exceed the 20 dBm max on the RF port. Power in excess of 20 dBm can result in damage to the unit.
The RMS detector is the best choice for noise measurements as it provides unbiased averaging of the signal. This gives a stable answer (because of the averaging) and gives the correct answer (because it is "unbiased"). Contrast this to the peak detector, where the answer continually grows over time, and the Sample detector, which provides no averaging
The calibration goes out when the temperature has deviated more than 15 degrees from the temperature at which the calibration was performed. This information is also available in the instrument. Simply press SYS and then Status after performing the calibration. The instrument will show the current temperature and then Cal Temp Range will show up as Current Temperature +/- 15C.
Windowing will reduce the lobes depending upon their severity. It is similar to an averaging or smoothing technique. There are four windowing options available: Rectangular windowing – Normal mode of operation. Nominal side lobe – Some smoothing Low Side Lobe – More smoothing Minimum side lobe – Maximum smoothing
Currently Anritsu does not but is working diligently to provide a solution.
If a battery is allowed to totally discharge, the smart-memory capability of the battery may be lost, resulting in incorrect battery capacity readings or loss of communication with the battery.
If a flashing LOW BATT indicator is accompanied by an audio beep at the end of each trace, the battery has approximately one minute of useable time remaining.
The NiMH battery will last longer and perform better if allowed to completely discharge before recharging. For maximum battery life, it is recommended that the NiMH battery be completely discharged and recharged once every three months.
You need a 2-port measurement so you can send out a signal from a transmit antenna and monitor the signal coming in at the receive antenna. You can either use the S251C with its insertion loss mode or you can use the Site Master and Cell Master with its Transmission Measurement modes. The benefit of using the S251C is that the nominal output power is higher or about +6 dBm vs. about -10 dBm with Option 21. The further apart the antennas are, the lower the signal will be in the Rx antenna and for optimum dynamic range it is helpful to use max power level. When you make the measurement, you start out calibrating the instrument with a through cal (Option 21) or a 1-path 2-port cal (S251C insertion loss mode). When you connect a cable from the RF out to the RF in port of the Site Master, you should see a flat signal. When you then connect RF Out to a Tx antenna and RF in to a Rx antenna, you are essentially looking at how much power is going into the Rx antenna or the acutal isolation between the two. Depending on the system and the setup, the values will vary and you'll need to check with the system engineer to see what is recommended for your system.
The internal power meter is using the Spectrum Analyzer receiver to measure the channel power over a certain bandwidth. The high accuracy power meter uses an external RMS sensor which makes a broadband power measurement. The sensor provides better accuracy than the internal power meter and is also better suited for making accurate measurements of modulated signals. The main advantage of the internal power meter is that it allows you to make power measurements of specific channels and it can filter out anything outside the bandwidth you entered. The high accuracy sensor will add everything up that is in the path.
Yes you can. You can go into the sweep menu (MT8222A, MS272XB) or "MEAS/DISP" menu (MS2711D, S332D, S312D, MT8212B) and select "Min Sweep Time" and enter the desired sweep time. If you enter a time that is faster than what the instrument is capable of then the instrument will change the sweep speed and default to whatever the instrument can do. For every measurement point, the instrument spends a certain time and if it is too fast, then it is measured again. This is why the actual sweep time is usually a little bit longer than the requested time. In zero span mode, the sweep times are exact.
With the OSL calibration, you have to calibrate each time you change the frequency range. With the FlexCal, you can change the frequency range and you don't have to perform another calibration. FlexCal is great for troubleshooting purposes. The accuracy can be affected if your span is really narrow so for optimum accuracy, it is recommended to use the OSL calibration.
Yes but there is no guarantee that it will work. Only those printers listed have been tested and are known to work properly with the Site Master.
