Hello
just planning a new micro-pop.
plain area, with forest all around. the customers are within 250mt radius.
I can get there via a 60GHz link with about 1gig capacity.
What about an EPMP3000 L + Omni 13dBi ? I have tried it with a 40mhz channel and worked absolutely great. What about 80mhz? Did anyone made some field tests?
I would like to use with 75/25 2,5ms
thank you
Of course dude. I run 8 towers all on 80mhz and can get over 400mbps to many customers. Inuse the 75/25 too. I recommend setting max mcs manually to keep retransmits to 0%. I dont usually use omni’s, but one tower has epmp3000l with 13dbi ubiquiti omni and another tower has epmp3000 with 4x4 omni. Both are in remote locations so theres no noise, and they work perfectly. Remember to keep cpe router on channels away from tower freqs.
I also have one tower facing the city noise with 80mhz channel and its beautiful. It performed better on 80mhz than 40mhz. Hardly anyone uses 80mhz becuase they think local noise will ruin it, and often its true, but if you move freqs around and manually set max MCS on cpe radios, you can make it purr with solid latency 15-22ms for every sm with 150-400mbps to each sm depending on rssi and modulation settings.
Good luck
It’s been a long while since I’ve had to mess around with max MCS rates. I’m wondering if Cambium have changed their algorithm in later firmware releases.
Hi do you recommend to set up MCS manually on the CPEs radio but do also leave DLMax rate on the AP at MCS 9 or do you lower on the AP as well?
Always leave AP on highest possible mcs rate and make adjustments on sm only. Use Monitor - Performance to see what rate packets are passing, then drop rates to match. Keep resetting and running speed test and reducing mcs until all packets pass 100% on the set max mcs rate. Do in both directions.
thank you, one question if a CPE performance % is 90% under MCS8 for example, but I know customer plan in MBPS is 30Mbps DL/10Mbps UL
is there any problem if I set up manual rate at Mcs5? I know that at mcs5 can easily do the 30/10 plan. I was thinking to standarize all my CPE at Mcs5 as long as the throughput plan is achieved. Is that a googd idea?
The only reason to reduce max mcs is to keep latency as low as possible, by stopping retransmits. Tune each sm separately and I recommend setting it to one step lower than necessary. ie if you can get 99% of packets to pass at mcs7, set it to mcs6. I would not set all max mcs the same (ie mcs5) because you want it to be uniform - this is not a good reason. You still want traffic to pass each sm as fast as possible, so what is the benifit of slowing traffic down to mcs5 when you can get 100% passing mcs6? Uplink was different, as less traffic and lower rssi due to no beamforming in that direction. So, I would set every sm with the same uplink mcs - mcs3. Every sm had uplink mcs3 and downlink of between mcs1 and mcs9, depending. I could still get 30/10 on mcs1/mcs1, and some clients had this setting. Other clients had mcs3/mcs9.
To configure the max mcs in both directions, use the retransmits as you guide. You want 0% retransmits, so keep lowering the max mcs until you achieve 0%, then drop it by 1.
To sum up - I did set uplink to mcs3 on every sm, accept when I needed to go lower to achieve 0% retransmits. For downlink, make mcs as high as possible while still getting 0% retransmits.
Why? Because you always want traffic to pass the AP as fast as possible, so it can move on to sending traffic to the next sm. By setting downlink mcs lower than necessary, you’re slowing your AP down. This would not really matter if your AP had very low frame utilization, but I still see no point slowing your traffic down just for uniformity in your ocd brain 
got it thank you I will give it a try.