We just put up a 900 Mhz MikroTik Metal 9 AP set to 20 Mhz wide channel and NV2 protocol. The antenna is a 4db gain omni at about 140 feet.
Download speed is limited to around 15 Mbps on the network connection to the AP, but upload will top out at about 90 Mbps on the network connection to the AP.
I’m using a MikroTik Metal 9 unit as a client, with a 14 db gain yagi, for testing purposes.
Near the tower/AP, I get about a -35 dbm signal level from the client to the AP. At that location, I can see get maximum of about 35 to 40 Mbps upload. I think that is about the limit based on a 20 Mhz wide radio signal. Please correct me if I’m wrong about this.
When we get further away from the tower/AP (maybe 1/2 mile), over a slight hill and through some trees, the signal level will be at about -60 dbm. At this point, the maximum upload speed that I can get is about 15 Mbps.
Does this sound ‘normal’, that at a signal level of around -60 dbm, that I would only be able to get a maximum speed of about 40% of what can be achieved at a signal level of around -35 dbm?
Or does this sound like something else (besides signal level), such as interference on the ‘input’ to the AP, may be causing the significant drop in upload speeds?
John Rayfield, Jr.