7 inch Touch Screen: The SV4401A Vector Network Analyzer is equipped with 7-inch IPS LCD and resistive touch screen with resolution of 800*480. There are 4 configuration items on the settings page: LANGUAGE, , TIME, and BACKLIGHT. And there is a supporting bracket behind , which makes you more convenient at work. The antenna analyzer is equipped with 4 entity keys and you can quickly set the frequency, scale, on/off trace, add/delete marked points, screenshots, etc 50KHz-4.4GHz Frequency Range: The measurement range of has been upgraded to 50kHz-4.4GHz(the previous largest 3GHz). SV4401A is suitable for antenna testing of MF/HF/VHF/UHF bands. It can also be used to measure filters, amplifiers, attenuators, cables, power dividers, couplers, duplexers and other RF components. S11 and S21 parameters can be measured, where the S11 dynamic range is 50dB, and the S21 dynamic range is 75dB 8GB Memory Card: The antenna analyzer built-in 8GB memory card to store calibration status, SNP, files, screenshots and so on. The TDR function can be used to measure cable length. The RF interface of SV4401A is N-type female connector and a pair of N-to-SMA adapters are included, which can be used to connect DUTs with SMA interfaces Upgraded 6700mAh Rechargeable Battery: The SV4401A battery have been improved to 6700mAh and built-in two 3350mAh lithium batteries which can continuously work about 10 hours, so you can work with it for a long time; Please use 5V/2A charger to charge the device Colour:black Material:Metal Package Contents: 1 set X Network Analyzer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.