I tested the herelink a few days ago (ootb firmware) through a very populated urban area, with a bit of elevation change. The source video was from a computer. The transmitted lag was about 120 msec, and we were impressed with the quality (shout-out to proficnc and hex for making one of the first high quality feature packed hd fpv systems). We were able to achieve about a mile and a half of range, which is reasonable considering the amount of blockage to any kind of LOS.
As a few people mentioned that the Flir Vue Pro HDMI module (built for lightbridge/solo) did not work, I began testing a few alternative modules today. In addition, I was going to update to the latest firmware; however, we’ve run into an issue - suddenly the air unit seems to have powered off. The air unit was being powered by a regulated 5v supply, and the air unit was roughly room temperature, so it’s not a overheating or power issue.
Anyone have ideas?
While I am still open to discussion, I just tested the air unit with a 2s battery I had around, and it is working properly. A multimeter showed the voltage on that bus occasionally dipping to 4.8v so I suspect the supply may have a failed regulator. An oscilloscope will tell. Stay tuned for analog to HDMI converter test results.
I have tested these two converters and can confirm they work as expected.
- https://www.amazon.com/dp/B0771TSGVC - when viewing recorded video from the herelink frame-by-frame, this one appeared to have very slightly higher video quality but there is a significant chance that it was caused by me using a 6" cable vs the 4’ ones on the other adapter.
After some testing (to no avail) I think I have determined why the Xiaomi Yi action cams do not work with the HereLink. Regardless of what resolution and standard (NTSC/PAL) you set them to, they only output 1080i on the live feed. this may be possibly fixed by a firmware hack
I ended up using the AuviPal converter (second link) because it, when disassembled has a much smaller PCB (weighing in at 7g). Picture is in the thread below.