I have never heard of this brand (KS Analysis), or model KS700, so they are not considered a know manufacturer of ground penetrating radar (GPR). That doesn't mean that they can't make a GPR, just that they don't sell GPR to professional users of GPR.
The documentation says that this is a frequency modulated continuous wave (FMCW) GPR instrument, which is may be. The documentation also says that it can image down to 40 m, which I don't believe in any world. The wording about FMCW on all of the marketing materials means that the manufacturer either doesn't understand the physics of GPR or that they are lying to you.
I have attached two images to this email, the first is my ImpulseRadar CrossOver CO1760 GPR mounted to the back of my truck for a bedrock mapping survey on a road. The CO1760 is an impulse GPR instrument and has two pairs of antennas, one pair with a center frequency of 170 MHz and the other with a center frequency of 600 MHz. I have also attached a sample GPR profile of 170 MHz data over very electrically resistive soil with great penetration showing around 8 m of penetration. For GPR to penetrate to 40 m, you would require a very low center frequency for the system and very resistive material such as ice in Antarctica. The dimensions of this KS700 mean that the antenna elements can not be large enough to operate at the low frequencies required for 40 m depth of investigation.
I found some marketing material about the instrument on this website. This isn't what GPR data looks like.
Overview:Ground radar that is portableOn-site 2D analysisOn-site 3D analysisSimple to operateUSB interface powered by a batteryAt any temperature, it is ready for use.Location up to 40m deep With KS Analysis, you may immerse yourself in the captivating world of soil Exploration! We are...
detectorshub.com
GPR instruments never report numerical values. The data is almost always graphically displayed showing amplitude vs time for each a-scan and interpolating the amplitudes vs time for b-scans (what I showed in my attached image). All of the b-scan data can be processed into c-scans in analysis software after completing your surveys. These will be 3D volumes of data.
Golden Software Voxler doesn't do any processing, just visualization of 3D volume of data.
Sorry, I can't really help you.