Both CairnsViper and ISG use digital transmission. Like everything else in life, there are advantages and disadvantages to digital transmission. Those with a digital cell phone would understand. It is also important to note that the video overlay option available from ISG and ISI creates a 50% thermal/50% video image. The video only works in environments where your eyes will work. In dark environments with low thermal difference, the result will be a black picture.
Originally posted by Rescue101
As far as I know right now,if you are into transmitting images to your command vehicle,the K-90 is the only camera CURRENTLY using encryption(but this stuff changes fast so someone else might by now).Now we get to the critical stuff,Lil' blue ox,Cheap and a fair picture,to the "Lexus"(banana)which is in the oh my god how are we going to pay for that end of the spectrum with the 4000 and the Eagle 2 somewhere in the middle.Last but not least the K-90 has an optional feature that can be handy if you do haz-mat,it can be ordered with a video overlay which allows you to use the camera as either a video cam or a TI cam.Ultimately it's you folks who have to use it,so take your time,get demo units,work them under real conditions,talk to others who use the finalists you select(different ways to get this info)and choose wisely.One you have one and LEARN HOW TO USE IT PROPERLY you will wonder how we ever did this job without them.One bit of CRITICAL INFORMATION that I didn't mention earlier is that NO CAMERA that I'm currently familiar with is INTRINSICALLY SAFE,DO NOT USE THEM IN A FLAMMABLE ATMOSPHERE.T.C.