[AusNOG] Smoke and radio performance

[Matt Perkins]

Assume your talking LIPD band stuff with low power.  I’m sure there is increased attention on the path due to scatter and Increased cross channel interference from same. But most commercial licensed systems should have sufficiently budged in there power budgets for that.   We have see only minimum increase in BER even up in mm wave systems. 

Believe it or not the biggest issues with summer the  threat to fixed wireless NBN is a thing called tropospheric ducting which often effects NBN in Tasmania from southern Victoria. Normally microwave does not go beyond the horizon however with specific summer atmospheric conditions systems from VHF right up to about 4 ghz can bounce there way where they were not planned to be.   It caused a massive NBN outage last year and I’m sure will again this year. 

Matt
VK2FLY 


-- 
/* Matt Perkins
       Direct 1300 137 379     Spectrum Networks Ptd. Ltd.
       Office 1300 133 299     matt at spectrum.com.au
       Fax    1300 133 255     Level 6, 350 George Street Sydney 2000
      SIP 1300137379 at sip.spectrum.com.au
       Google Talk MattAPerkins at gmail.com
       PGP/GNUPG Public Key can be found at  http://pgp.mit.edu
*/

> On 10 Dec 2019, at 10:15 am, Narelle Clark <narellec at gmail.com> wrote:
> 
> 
> 
> Folks
> Does anyone have any real world measurement data on the performance impact from the bushfire smoke on point to point radio throughput?
> 
> We're seeing a hit on a 5GHz system over the last week or so which seems awfully coincidental...
> 
> 
> Narelle 
> 
> 
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog