This is over 580Mbps of aggregated capacity. And the download speed across the link on one of the shared NanoU's was this:
Late one night I decided to push the pedal to the metal and see what LTU could really do. So I cleared some colocated spectrum and cranked the channel width to a 100mhz wide channel.
What I got, was 1088Mbps aggregate throughput !
LTU isn't fine tunned yet. The above performance will continue to increase even more as the dev team optimizes things in the firmware.
Lets look at a comparison link where I replaced a regular AF5X with the AF5X-HD.
This was a challenging link that skimmed just over the trees at 7.8 miles causing some signal loss.
Barely achieving 6X because of the trees with an aggregate of about 145Mbps.
I swapped in AF5X-HD's on both side.
The modulation jumped to 8X to 10X and download went from 98Mbps with the regular AF5X to as much a 150Mbps with the HD. The aggregate went up to 210Mbps with the HD. Again, this will improve even more with newer firmware.
Swapping in an AF5X-HD will almost always result in improved performance in my testing.
The LTU based AF5X-HD achieves 10X much easier for several reasons. First it can hit 10X with as little as -62 of signal (with 20mhz channel). Compare that with -54 or so for a regular AF5X. Also the AF5X-HD allows 10X at a much, much higher conducted power level. The old rules about much gain you need and cranking down the conducted don't seem to apply to the LTU.
I'll share some more AF5X-HD links in the coming days.
For close up photos of the new AF5X-HD, see this other story.