RB532 AP / SR2 Issues - Thinking about switching to 2511MP

RouterOS Wireless Networking
1

Greetings,

I’ve got an RB532 AP unit, with an SR2; it’s been deployed for about 2 months now. We’re starting to see the issues documented in this thread.

I’ve performed the steps suggested (specifically enable periodic calibration, set TX powers as specified by the initial poster). Signal levels seem about the same on the active CPE, which is a good sign! We’re still checking to make sure that everything is working OK and if it has resolved the complaints we were getting.

However, I’m looking at alternate solutions in case this doesn’t pan out. Of course, nothing else has 400mW output power so I would need an amplifier to meet this power. So, my choices seem to be using a CM9 with an amp, or a 2511MP with an amp. Am I correct in interpreting the forums and documentation that the output power of the 2511MP cannot be adjusted? I plan on using a 6dB pad to reduce the input power to the amplifier, to maintain specifications.

The thing is, I’m not sure which would be better - CM9 or 2511MP. My CPE is almost entirely composed of CB3+ units, so it seems to me that a 2511MP would be better - but I have also read a few posts on the forum about the 2511MP not being all that well supported by MT.

So would I be ok with the 2511MP, or would the CM9 be better?

2

Surely the SR2 should be OK with the power settings. Spec wise it looks awesome.

If there is any issues is there not a firmware or driver update from Ubiquity to fix this?

3

Surely the SR2 should be OK with the power settings. Spec wise it looks awesome.

Well, so far it’s doing much better. The particular users who were complaining say things are better, but we’re still thinking about going to amps to improve range - but not just yet.

If there is any issues is there not a firmware or driver update from Ubiquity to fix this?

Surely you’ve seen the numerious threads on these fora regarding the fact that Ubiquity says there’s nothing wrong, and MK probably won’t have ‘a fix’. The ‘fix’ is to put in the power levels as suggested here. A note to the mods - sticky that thread!

But, my question still remains. With Senao CB3+ CPE (i.e. Prism 2.5), would I be better off using a 2511MP card or a CM9?

4

We had the problems on this as well. Make sure you set your Tx levels to 21. MT has a fix, but now it is in the wireless test, not something I am going to deploy on a production network. The SR cards have performed flawlessly since we lowered the power and set the cal to enabled.