I finally took the plunge, watching the Chinese supplied Youtube Video was quite helpful really ( thank God for the subtitles ) I was a bit nervous stripping down the original RC unit ( I have recently purchased the Smart Controller, but didn’t want to risk damaging that ) took about an hour with little gaps inbetween to study the video or rewind a few times to check where the left over screws came from etc, the hardest part I thought was getting the original antenna sticks out of their mountings, the method the Chinese guy demostrated looked much too risky for damge through slipping etc, I opted for a small flathead screwdiver to wedge them out.
By the time I finished it almost dark, but I did a quick test flight in the freezing 1deg C outside temp & it worked fine, so no controller damage, I haven’t done a proper range test yet, but I have my smart controller to compare against, luckily they are both paired to the Mavic 2 Pro so really easy to use without having to pair one or unpare one depending on what I need.!
Specs : Product model: DUO-2458SSB
Dual-Band, Work with 2.4G and 5.8G
Working Frequency Band: 2400-24835 GHz / 5.725-5.850GHz
Working Voltage: 6-9V
Antenna Gain: 2.4G>13 dBi±1 / 5.8G>15dBi±1
Receive Gain: 10 dB±1
Transmit Gain: 15 dB±1
Input power range: 10-20 dBm ( can be used with FCC modded RC )
Well finally got around to modifying my DJI Smart Controller to add the QMA antenna quick release connectors so I can switch between the standard omni antennas or connect up the Alientech Duo II amplified directional antenna, or even connect up the short runs of cable to add the antenna to the car roof for cold winter flights etc. Anyway I was a little worried to say the least about stripping down a £500+ unit still under warranty, but decided to give it a go, following the Chinese Youtube video wasn’t too bad actually, here’s the pics, too windy to test it out properly, but connects to craft so that will have to suffice until better flight weather.
Getting the sticky rubber pads off the back & sides of the case - had to use a good directional heat gun especially ordered for the job for that, getting the damned whole flip up antenna fascia off then having to strip that fascia down & move the two thumb wheels across onto the new replacement top fascia that houses the QMA antenna connectors, remembering where all the tiny screws came from & had to go back to, & the rear back middle panel getting that back on again, not something I would relish doing again shall we say.
I could do with getting some 7dbi qma connecting whips (2.4/5.8 dual) with angled joints for backup as one thing I really loved about the SC was the folding movable antennas, the small clip on whips I have now are fixed position & I could do with some that can be fine angle adjusted to path of drone in relation to the SC do you know of a reliable supplier ?
