Subject to change without notice
18
C o nt r o l e l e m e nt s
Control elements of HM8030-6
DISPLAY (7 segment LED)
5-digit frequency meter. LED indicators for
mHz, Hz, kHz and s
SWEEP (push button) and Indication (LEDs)
Button activates internal sweep generator.
The LEDs indicate the function chosen with the
SWEEP-Button. Settings are changed with
or .
FREQUENCY (adjustment knob)
Continuous and linear frequency fine ad-
justment, with the setting range from 0.09
to 1.1 (approx 0.045 to 1.1 in 10 MHz-range)
overlapping the ranges selected with
FREQUENCY (2 pushbuttons)
Frequency range selection from 50 mHz to
10 MHz in 8 decade steps.
(LED s)
Indication of selected function.
(pushbutton)
Mode selection: Triangle, Sine, Square, Pulse
and Off.
TRIGGER OUTPUT (BNC connector)
This short-circuit-proof output supplies a
square signal in synchronism with the output
signal. It is TTL compatible and has a duty-
factor of approx. 50%.
OFFSET (adjustment knob)
Adjustment of the positive or negative offset
voltage. This DC voltage can be super-imposed
on the output signal. The max. offset voltage is
±5V (open output) or ±2.5 V respectively when
terminated into 50 Ω. The offset voltage is
available to all functions except for pulse and
activated by
. In operation mode OFF (no
function activated) it can be used separatey.
In pulse mode the pulse width is set with this
control from 10% to 90%.
ON (pushbutton)
Activates the offset function except in pulse
mode. If the ON-button is pushed in pulse
mode, pulse width is set with the control
from 10% to 90%. In OFF-position the fixed
pulse width amounts to 50%.
50 Ω OUTPUT (BNC connector)
Short-circuit proof signal output of the gene-
rator. The output impedance is 50 Ω and the
max. output amplitude is 20 V
pp
(o.c.) or 10 V
pp
respectively when terminated into 50 Ω.
–20dB, –20bB (pushbutton)
Two fixed attenuators, 20dB each. They can be
used separately. When both pushbuttons are
activated, a total attenuation of 40dB results.
Including the amplitude control , the max.
attenuation amounts to 60dB (factor 1000).
AMPLITUDE (adjustment knob)
Continuous adjustment of the output ampli-
tude from 0 to –20dB terminated into 50 Ω.
