Distance Boost - Force 400C


I have 2* Force400c radios and also ordered 0.9m Antennas from ALGCOM. Can this work on 40km link?LinkPlanner says:

  1. -51dBm+/- 4
  2. Lowest Mode Availability: 100%
  3. Mean IP Predicted: 0.00mbps

Warning: The maximum range for this link operating in ePTP mode at 40 MHz is 32 kilometers.

Anyone who has reached 40km on Force400c?