I do hope that yuga is correct in saying that smart is reading this and I do hope this gives their Technical Department more info. In short what this means the less the jitter level for your SM (Subscriber Module = CANOPY) the better, this also tells you that even if you are very very close to the Base Station AP (Access Point) does not mean that you will have better connection. Smart should configure CANOPY’s in different ways and there should be no standard configuration. Configuration of SM’s (CANOPY’s) should depend on where the subscriber is located.

Jitter is a measurement of the quality of the link. You can have high RSSI and still have high jitter. That SM is only 490 feet from the AP. The problem is too much signal (-42dB). Set the Power Control on the SM to “Low”, this will reduce the SM’s output by 18dB. Lower Jitter is better.

Having that one SM with -42dB is going to reduce that AP’s efective range. This is called desensitizing. It is not as big of a problem to have alot of signal at the SM side as the only signal the SM needs to see is the one AP. The AP needs to see many SM’s and if one has it’s signal substantially higher than the others the AP has difficulty picking up the SM’s with lower signals (further away).

Log into the AP’s Sessions page and look at the level from each SM. In general you want to try to balance the amount of power the AP sees from each SM so that the lowest is not below -76dB and the highest is not above -56dB with the majority of the SM’s falling between -60 and -70 (remember we are dealing with negative numbers so the lower number is a higher signal level with 0 being the absolute maximum.) So in the case of your SM with -42dB RSSI, you can lower the power of the 18dB and still have -60 which is just about right.

If you have an SM with a signal level higher thn about -58dB, you should be able to set the Power Control to Low and still have -76dB. I would suggest that you test this on site rather than changing users from the AP. Once you have a feel for when to switch the Power Control to Low, then change your other users.

Popularity: 7% [?]