Contents > BT v4.25 firmware:
I've since read of this method described on the-scream.co.uk for adjusting the wireless power levels settings. I have briefly tested this method myself and it does work with BT stock firmware v4.25.27. It basically involves editing the source code for the active web form displaying the wireless configuration page presented in the web browser.
You will need to install a web browser such as Opera.
Using Opera web browser, go to the hub's main menu
home or 192.168.1.254
Navigate to 'Local Network' > 'Wireless Settings'.
You can see from the above image, my hub at present only presents me with a single setting of '1' to choose from. From Opera, click on the 'View' pull down menu and choose 'Source'.
This will open up a new tabbed window within Opera. Press 'CTRL-F' and search for the phrase 'power setting'
And now for the clever bit. You now need to insert a new line as shown in the highlighted text below. The new line is a duplicate of the line above it, but with the two entries for '1' replaced with a '4'.
Now press the 'Apply Changes' button in top left hand corner of the web page. Now return to the original Wireless Settings window and the new power setting should be presented to you.
Choose the new power setting of '4' and press the 'Save' button.
One can now check the 'Detailed Log' which appears as an menu option at the bottom of the Management and Diagnostic Console main page which is visible by going to
home/mdc or 192.168.1.254/management
On my hub, these are my brief observations:
Wireless Power Setting 1 in menu = 'Wireless power set to 25' will appear in Detailed log
Wireless Power Setting 4 in menu = 'Wireless power set to 100' will appear in Detailed log
Wireless Power Setting 8 in menu = 'Wireless power set to 300' will appear in Detailed log
The graph below shows the obvious jumps in signal strength when I was cycling through power settings: 1 - 4 - 8 - 1
There is probably a power setting which sets the maximum Wireless power value of 400, but I didn't pursue this line of investigation.
Please note that if you return to the Home > Local Network > Wireless Settings page at a later time, you will observe the wireless power setting appears to have reverted back to setting '1'. This is perfectly normal. Your previously modified wireless power level value was saved and is retained even when the hub is switched off and on. You can check by examining the Detailed Logs in the home/mdc page. BUT, if you make any changes to the Wireless Settings page or press the 'Save' button again, it will undo the wireless power level setting and revert it back to a value of '1'.
Note: use of wireless power levels greater than 100mW (wireless power setting '4') is illegal in the UK. Remember that wireless communications is two-way, so it may be all very well boosting the transmitter power of the router to get better reception, but this is a waste of time if the router cannot receive the weak signal from your wireless device. BT appear to cripple their hubs to a single power setting of '1' from what I've read - this appears to correspond to a value of 25mW transmit power. A power setting of '4' corresponds to 100mW - UK legal maximum.
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