802.11g tweaks for difficult shot?

Discussion in 'DD-WRT Firmware' started by vincentfox, Oct 18, 2005.

  1. vincentfox

    vincentfox Network Guru Member

    Let's say I've beaten my brains out over the obvious things to stabilize a tenuous link on a partially obstructed shot with sporadic interference sources from consumer appliances.

    High-gain dish on each end horizontal polarization, power maxed out, rate locked to 1meg.

    Any additional tweaks I could make to try and improve things further? Still getting some packet drops, about 10%.

    Long preamble or short?

    Using mixed now, locked to B or G?

    Any of these EDCA AP or EDCA STA parameters on the Advanced page I should try?
  2. itsmeohmy

    itsmeohmy Network Guru Member

    Lock it to B as it is more forgiving about miscalculations. Also get out your compass and try and match it up "line of sight" perfectly.
  3. Team140

    Team140 Network Guru Member

    How far of a distance are talking here? I have seen some anomolies with my 54G while the power was vranked to the max. Dropping the power levels helped out tremendously.
  4. vincentfox

    vincentfox Network Guru Member

    WRT is set to 28 mW, using external amp.

    I'm about to give up on this link but struggling with what to replace it with. The WRT rig was at least cheapish. This 900 MHz stuff has insane prices. All I want to do is go about 1,000 feet NLOS and bridge 2 locations, keep googling and finding websites that want to sell me Canopy gear at $1,500 per item. Yikes!
  5. vincentfox

    vincentfox Network Guru Member

    Yep used a GPS already to get waypoints for both positions, and attempted to align dish by compass. I have to assume it's good enough since I don't have better tools for this. Tried B-only reducing frag didn't seem to help any.
  6. itsmeohmy

    itsmeohmy Network Guru Member

    Try also setting the power level to 74mW and enable burst cache. Post your findings after and we'll try to help further.
  7. vincentfox

    vincentfox Network Guru Member

    Do you mean "frame burst"? I don't see a setting labelled burst cache exactly.

    Also, the radio itself is set to 28 mW, because I have an inline amplifier. Why would I want to increase the transmit power at the radio also? I would think this would cause problems. Not to mention running over FCC limits.
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