Frequency Selection; Level Selection - Promax GR-205 Manual De Instrucciones

USER'S MANUAL. GR-205
FREQUENCY steps can be entered directly from the keyboard in kHz, MHz or
GHz but will always be displayed in MHz. The smallest step that can be set is 10 Hz
and this is the amount by which the step is changed if the rotary control or
are used; large changes in step size are therefore made most quickly by direct
keyboard entry.
LEVEL steps can be entered directly from the keyboard in dB or µV/mV;
separate step sizes are stored for dB and µV/mV and the choice of units will determine
which of the two LEVEL steps is changed. The active LEVEL step size is the one
currently displayed; pressing dB or µV/mV will switch between the two without
changing either. Note that mV values below 1.00 mV will be displayed in µV and µV
values above 1000 µV will be displayed in mV. The smallest step size that can be set is
0.1 dB or 0.01 µV; when using the rotary control or
amount by which the step is changed is 0.1 dB for dB steps or 1 least significant digit
for µV/mV steps.
Having set the step size, return to the main menu by pressing FREQUENCY or
LEVEL.

4.3 Frequency selection


Set the cursor to FREQUENCY on the main menu by pressing the
FREQUENCY key. The generator frequency can then be set directly from the
keyboard, in kHz or MHz, or changed using the rotary control or
Size selection for setting the rotary control and
Note that when an increment would have taken the frequency above the
instrument's maximum, the setting becomes 2000 MHz. The next decrement returns
the frequency to the last in-range setting and further decrements decrease the
frequency by the specified step size. Similarly when a decrement would have taken the
frequency below the instrument's minimum the setting becomes 150 kHz and the next
increment returns the frequency to the last in-range setting, etc.

4.4 Level selection


Set the cursor to LEVEL on the main menu by pressing the LEVEL key. The
output level can then be set directly from the keyboard, in dBm or µV/mV, or changed
using the rotary control or  
control and key increment size.
Note that when an increment would have taken the level above the instrument's
maximum output the setting becomes +7 dBm (or 500 mV). The next decrement
returns the level to the last in-range setting and further decrements reduce the level by
the specified step size. Similarly when a decrement would have taken the level below
the instrument's minimum the setting becomes –127 dBm (or 0.1 µV) and the next
increment returns the setting to the last in-range setting, etc.
09/2004
 
 
keys. Refer Step Size selection for setting the rotary
 
keys to set step size the
 
keys. Refer Step
key increment size.
 
keys
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