RF Neulink NL5000-T - Manual (Page 20)

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damage to the unit, this is normally set on with a time of 60 seconds of less. See section 5.3 for
limits on maximum key-down times. The factory default is 60 seconds.
6.5.3
ALIGNMENT
The alignment page is used for setting the values of the digital potentiometers which are used for
aligning the unit and setting the gains of the audio paths. The unit leaves the factory already
aligned, but the user may wish to change the values of some of the input and output gain settings.
Different systems or modems may require different input and output levels. The factory default
settings for the various menu items are listed below.
Aux In (TX) Gain-Set so that without pre-emphasis (flat), 100 mv rms will produce 60 % rated
deviation. If pre-emphasis has been set, 500 mv rms at 1 kHz will produce 60 % rated deviation.
Aux Out (RX) Gain-Set so that without de-emphasis (flat), a signal with 60 % rated deviation will
product 400 mv rms into an open circuit (half this value into 600 ohms). If de-emphasis has been
set, the output level will be about 100 mv rms at 1 kHz into an open circuit.
Carrier Detect On and Carrier Detect Off-For RSSI based systems, factory set for carrier on at
about –110 dBm and carrier detect off at about –115 dBm.
TX Frequency Trim and RX Frequency Trim-factory set to be on frequency.
Audio PA Gain-Set such that a signal at 60 % rated deviation at 1 kHz will product 400 mV rms
of output level.
Deviation and Balance-Set such that the maximum deviation will fall within the regulatory
requirements and that the transmit audio response has the correct characteristics. Deviation and
Balance do not need to be adjusted after a change in programmed frequency. New values are
calculated and loaded by the programmer when a frequency is entered in the frequency menu.
Instructions for using the alignment page can be found in section 13 of this manual.
6.5.4
RESTORE EEPROM
This selection is used to load a previously saved radio configuration file to the radio connected to
the programmer. This is of benefit when a number of radios are to set to the same frequencies and
with the same switch settings.
6.5.5 SUMMARY
The summary page summarizes the information shown on the other three pages and, in addition,
includes the model and serial number of the unit.
6.5.6
SAVING A CONFIGURATION
Upon exiting the programmer via the exit button, the user will be presented with a box which
allows the saving of the current configuration. This is useful if a number of other radios are to be
programmed with the same frequencies and settings. If one does not wish to save the current
configuration, the cancel icon should be selected.