The RF signal generator PM 5326 is an instrument of
high accuracy. The precise specifications and easy to
operate controls make this device suitable for service
workshops and education as well as development laboratories.
The variety of applications includes telecommunication,
radio and television problems.
Based on the phase-locked-loop (PLL) principle the RF
carrier is very stable and easy to be set. The frequency
is electronically counted (MOS technique) with X-tal
reference and 5-digit LED-displayed. So faults in setting
and reading which are characteristic for common generators
with circular or linear scales are eliminated.
The amplitude of the carrier frequency able to be
wobbulated is precise stabilized throughout the whole
frequency ranges.
Radiation of the internal generated frequencies possibly
escaping the case or the mains cable is utmost reduced
by the separate cast RF housing within the instrument.
So reliable use of the high attenuation can be made.
The instrument includes a separate swept frequency
oscillator (wobbulator), the ranges of which are optimal
suited for the common AM/IF, FM/IF, TV/IF and VHF range
as well. The wobbulator is over-more used as frequency modulator
for the FM/IF and VHF ranges. Together with the wobbulating
ranges the center frequency, the width and marker distance of
the spectrum is automatically switched over. When a
wobbulating range is chosen, the X-tal controlled
adjustable reference carrier frequency is used as
"travelling marker" for pointing out the response in the
band-pass.
The wobbulated or frequency modulated signal is then
amplitude stabilised, defined attenuated and fed to
the RF output.
The multi-variable applications are pre-determined in
the extensive push-button array which in conjunction
with the further controls, sockets and the display are
all arranged at the frontpanel. The text plate is
multi-coloured so indicating the different functions for
operating convenience.
The overall electrical and mechanical concept reduces
the time for set-up, measurement and evaluation. |
