10
Spectrum Friendly
™
Interference Avoidance
Most Wi-Fi access points allow the administrator to set the channel and bandwidth for the system . Some systems employ
an “Auto” mode, in which the Wi-Fi access point will automatically select the channel .
With Wi-Fi access points, it is sometimes advantageous to manually select a channel number to keep the Wi-Fi
transmission at a fixed location. Common Wi-Fi channels used are 1 and 11.
To avoid the Radio Frequency interference caused by Wi-Fi routers and Wi-Fi access points, the DX340|HD Base
Station offers three user selectable Hop Bands of radio operation . Making use of these bands can assure that base
communication is always free of interference .
Interference may be characterized as mechanical sounding voices; voices breaking up while talking; or hearing a “Busy”
prompt in the headset when a button is pressed .
All Band
When the DX340|HD is configured in
All Band
, the Base Station uses the entire broadcast frequency range, offering the
greatest opportunity for headsets to communicate with the base . Base Stations are shipped in the “A” position, which is
the default setting . However, when in
All Band
, the base can be susceptible to interference from Wi-Fi routers and Wi-Fi
access points . To avoid this interference, the DX340|HD offers two other bands:
Low
and
High
.
Low Band
Using
Low Band
sets the frequency range in which the Base Station operates to the lower end of the broadcast range . If
you know that the Wi-Fi access point is set to Wi-Fi channel 11, then you should set the base station to operate in “Low”
band so the base avoids the Wi-Fi channel 11 frequency range .
High Band
Using
High Band
sets the frequency range in which the Base Station operates to the upper end of the broadcast range . If
you know that the Wi-Fi access point is set to channel 1, then you should set the base station to operate in “High” band so
the base avoids the Wi-Fi channel 1 frequency range .
A Base Station’s frequency band setting can be changed as follows:
1
Turn the base station power on .
The STATUS window will show “
8
” for a few seconds .
After the “
8
” disappears, the STATUS window will be blank .
2
Press and hold the
CLEAR/BAND
button, then simultaneously press and hold
the
REGISTER
button .
The STATUS window will show
L
,
H
,
A
or
E
(Europe) .
3
Press the CLEAR/BAND button repeatedly to cycle through the frequency band:
L
= Low end,
H
= High end,
A
= All and
E
= Europe .
Stop at the desired setting and wait until “
c
” appears on the STATUS display .
NOTE:
Base stations are shipped in the “
A
” (default) position .
The letter “
c
” will only appear on the STATUS display if you are setting the frequency band the first
time or if you are changing the setting .
If you stop at
L
,
H
,
A
or
E
that was previously set, an “8” will appear for a few seconds and the
STATUS display will turn blank .
If you change a base station’s existing frequency band setting, you will have to re-register all beltpacs
that were registered to that base station .
