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E Series Ethernet Radio – User Manual
Transmitter
The transmitter can be configured for transmit frequency and
power level.
Frequency
The required transmit frequency in MHz can be entered in the
display field. The programmer checks that the selected frequency
is in the range for the particular model of radio and provides
warnings if it is not.
Power Parameters
Remote - Minimum: 15dBm, Maximum: 38dBm
5W Base - Minimum: 30dBm, Maximum: 38dBm
20W Base - Minimum: 37dBm, Maximum: 43dBm
Power Adjust
The currently selected transmit power is displayed below the button
in dBm. The power level can be adjusted by selecting this button
which displays a dialogue box. The up/down keys, or a typed in
value, can be used to select the required power level in dBm steps.
There are two methods for setting the power.
Using Factory Calibration
To use the factory calibration of the radio the desired power is
set immediately using the OK button in the dialogue box. This
method permits the transmit power to be set without energising
the transmitter. Note that although the transmit power has been
adjusted it must be written to NVRAM using the modem “Write”
function to ensure it is retained after a power on reset.
Using a Power Meter
To overcome manufacturing variations in the power setting a more
accurate setting of power can be achieved by the selecting the
“Test With Meter” button in the dialogue box. This displays another
dialogue box warning the user that the transmitter is about to be
energised and that the power meter used should be able to handle
at least 10 Watts from the modem. Selecting OK in this warning
dialogue box will energise the transmitter which will also be indi-
cated by the red transmit LED on the unit. The power is adjusted
using the up/down keys until the required power level is obtained.
Selecting OK will retain the power setting and turn the transmitter
off. Note: Although the transmit power has been adjusted it must be
written to NVRAM using the modem “Write” function to ensure it is
retained after the modem is rebooted. Selecting “stop test” will stop
and leave you in power adjust box. “Cancel” will stop test and take
you back to the main window.
Receiver
The receiver can be configured for receive frequency and mute
level.
Frequency
The required receive frequency in MHz can be entered in the
display field. The programmer checks that the selected frequency
is in the range for the particular model of radio and provides
warnings if not.
Mute Adjust
The currently selected mute level is displayed in the main window
below the button in dBm. The mute level can be adjusted by
selecting this button which displays a dialogue box. The up/down
keys, or a typed in value, can be used to select the required mute
level in dBm steps. Whilst a session is in progress with a unit the
mute level adjustment is live. Selecting OK will retain the mute
level setting. Note that although the mute level has been adjusted
it must be written to NVRAM using the modem “Write” function to
ensure it is retained after the modem is rebooted.
Whilst the modem is capable of receiving extremely weak radio
signals, and successfully extracting the data content from the
waveforms the mute level should be set to assist the modem in
filtering out unwanted signals. Unwanted signals can be the result
of background noise or interference. The mute level should be set
at a level above these unwanted signals and at a level low enough
to detect the wanted signal. Detection of a received signal above
the mute level is indicated by the “RxSig” LED on the unit.
Modulation
The radio modem utilises a DSP to control the modulation of
transmit signals and demodulation of received signals. This
provides greater flexibility in the ability of the radio modem to
support new modulation schemes whilst maintaining compatibility
with existing modulation schemes.
The currently selected modulation scheme is displayed in the main
window below the select button. The modulation scheme can be
adjusted by selecting this button which displays a dialogue box.
The desired modulation scheme can then be selected from the
pull-down menu in the dialogue box and retained using the OK
button.
Part I – TVIEW+ Management Suite - Programmer
The type of modulation available for selection is dependent on the
model of radio. Modulation types are sorted using the following
criteria : Country of Approval (FCC, ETSI, ACA), Radio Channel
Bandwidth (12.5kHz or 25kHz), Radio Mode (E Series, M Series,
D Series or Legacy) and over the air speed (2400bps, 4800bps,
9600bps, 19k2bps).
Only modulation schemes suitable for the radio model in use are
available for selection. Please consider the following notes when
choosing a modulation:
Country of Approval :
FCC : for use in North America and other countries who use FCC
approved radios.
ACA : for use in Australia and New Zealand.
ETSI : for use in Europe and other countries who use ETSI
approved radios.
