The TS832 isn't a BOSCAM piece of equipment, it's Skyzone. There was a bunch of drama some time back (few years I think) and Boscam / Skyzone split but somehow Skyzone had rights to the name of the TS832, and a bunch of searching and reading around the interwebs pretty much everyone says that Skyzone equipment is inferior.
basically, "boscam doesn't make a 600mW 5.8ghz transmitter".
I personally use a TS352 500mW and FPVLR antennas and my FPV is rock solid out as far as I've ever gone, 800, 900+ meters easy although over the city it get some interference