I have slowly been modifying a Heng Long KV-1 tank for long range FPV. It has been an expensive endeavor buying and trying different parts. When it comes to ground based FPV some of what works good in the air does not necessarily work good on the ground. I have tried 1.2GHz and 2.4GHz video transmitters of different milliwatts. What seems to work best for me has been a 900MHz - 500mW video system. It has better reception going around trees and objects. Increasing the milliwatt output of the video transmitter did not yield any better results. I have added 2 infrared LED clusters for night vision. All other LEDs and speaker on tank have been disabled. At night this tank can be heard from the gears but not seen. I have been able to go 1000 feet from base so far. After return trip the battery is exhausted. The weight of this tank in 13.75 lbs. This is still a work in progress. Here are a list of parts that have been added. I hope this thread helps people who are interested in tank based FPV.
a) TK20E receiver board
b) Futaba FUTK4200 4YF 2.4GHz transmitter & R2004GF receiver
c) 900MHz 500mW transmitter with 5dBi omni antenna
d) Oracle Diversity Controller with 2 x 5dBi omni antenna receivers
e) 2 very bright IR LEDs for night vision
f) 7.2v 5300mAh battery
g) Taigen (Asiatam) metal hull with bearings
h) Green laser
i) Modified airsoft gun for use with TK20E board
j) DPCAV Tiny-Mic
k) PZ0420 camera with 4mm low light lens
