Selcal Mode - Aeroflex NAV 2000R Operation Manual

Aeroflex Operation Manual
TOTAL %MOD
This field allows changing all the percent modulation fields respective to one another. That is, changing
the total percent modulation will allow all current modulations to be changed equally, maintaining the
ratios between one another.
SELECT
Selecting the SELECT mode field places the NAV 2000R into the SELCAL mode of operation. The
SELCAL mode menus are described in Section 3.5.13.

3.5.13 SELCAL MODE

The SELCAL mode allows the NAV 2000R to output the signals necessary to test SELECTIVE CALLING.
The SELCAL mode menus allow programming of the RF and audio signals.
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RF LEVEL
This field allows the RF level to be programmed. The RF level may be programmed with 1/10th dBm
resolution using either dBm or uV/mV units. DBm numbers are entered using the ENT key. Microvolts
and millivolt numbers may be entered using the uV and mV keys (STO/RCL) respectively. The default
displayed units (normally dBm) may be changed by pressing the SEL key and then pressing either the
uV, mV, or dBm keys.
FREQ. MHz
This field allows the RF frequency to be programmed.
CHANNEL
This field steps the RF frequency output up and down by using the cursor control up and down arrow
keys.
RF KEY
This toggle field allows the RF frequency to be turned "ON" or "OFF". When this selection is turned on,
the Selective Calling sequence is initiated.
PULSE MOD
This field programs the modulation percentage for the pulse tones. This is a numeric entry field type and
is programmable from 0 to 99% in 0.01% steps. The default setting is 0% modulation. The sum of the
modulated tones will be limited to be no more than 99%.
INITIATE
This toggle field allows the SELCAL mode to be made "ACTIVE" or "INACTIVE". When this selection is
made ACTIVE, the Selective Calling sequence is initiated. When the RF KEY field is OFF, turning this
selection to the ACTIVE state causes the RF output to RISE to the selected preset level, the SELCAL
tone pairs to be sent, and then the RF OUTPUT to RETURN OFF. Activation of the INITIATE FIELD,
with RF ON simply causes the SELCAL tone pairs to be sent.
NAV 2000R SIGNAL GENERATOR - REV. 0 – JULY 26, 2007 - PG 3-20