5.740-5.840GHz Frequencies missing for United Kingdom

RouterOS Wireless Networking
21

After consulting with Stephen Patrick. We could also include the 5ghz-turbo band with frequency range for center frequencies: 5750-5770Mhz with 5Mhz step. Maybe some of the users of the UK would comment on this?

22

Uldis,

I’m not sure about 40MHz channels, the only 5.8GHz equipment I use other than MikroTik is from Alvarion and that uses fixed 20MHz channels. See my earlier post for centre frequencies.

I think the main problem with 40MHz channels in the UK is you would end up with only 1 usable (non-overlapping) channel with a centre frequency between 5.745 & 5.775GHz. In the UK 802.11a Band C is split into two segments, 5.725 to 5.795GHz (70MHz bandwidth, i.e. only one non-overlapping 40MHz channel) and 5.815 to 5.850GHz (35Mhz - not enough bandwidth for a 40MHz channel).

Also we could do with this update in v2.9, I can’t afford to run Beta software in a production environment.


Regards


Chris Macneill

23

Just FYI
Orthogon Spectra uses 30MHz channels in 5.8GHz band and is legal in UK.
I’ve just emailed a link to Uldis for the installation manuals which includes regulatory information including specific UK information.
Note it refers to 2W EIRP which is now out-of-date, we have 4W according to the new OFCOM ruling.

Regards

CableFree Solutions

24

Please post the link to the Orthogon manual here so that others, including me, can have a look at it.

Regards

Chris Macneill

25

Sure - if that doesn’t offend MT (if it does, please delete this one post, not the whole thread)
The manual in on the public area of Moto’s site, so no confidentiality issues and I don’t think I’ve broken any publishing rules by doing this:
http://www.motorolaptp.com/library/?cat=17
and it’s the “P2P600 manual” you want

Regards

Stephen

26

Please make sure it can use the standard 20MHz channels of 5735, 5755, 5775, 5835.

27

These fequencies will be available: 5755,5775,5835, but 5735 will not be available. Why should the 5735Mhz be allowed?

28

Why? Because it is an integral part of Band C and is needed.

http://www.ofcom.org.uk/radiocomms/ifi/tech/interface_req/uk_interface_2007.pdf

With 20Mz channels, there are four available frequencies that are used by 5.8GHz kit: 5735, 5755, 5775, 5835.