INSTALLATION
Before connecting the remote sensor to the frequency source, verify that the power level
is
within the
limits specified for the sensor.
Connect the long LO cable from the upper jack to the remote sensor. When using the sensor option 91,
use the SMA-TNC adaptor in the 590 kit.
Connect the short IF cable from the lower jack to the Band 3 input.
CAUTION
Static discharge or ground loops can damage or destroy the diode in
a
remote sensor. ALWAYS connect the LO cable to the counter first,
then touch the shield to the body of the sensor before connecting.
Be sure that the counter and waveguide port, to which the sensor will
connect have a common ground. If in doubt, connect with
a
ground
strap before connecting the remote sensor.
OPERATION
After connection, select Band 41, 42, 43 or 44 on the 548A counter (equipped with option 06). Select the
band by:
PRESS:
a
a
or 42, 43 or 44.
Be certain that the band selected coincides with the remote sensor in use. See specifications Table.
NOTE
Frequency limits
(lowlhigh) and power meter function (Option 02)
only operate to 26.5
GHz.
REPAIR
If loss of sensitivity occurs the diode in the sensor may be damaged. The
91
sensor diode can be replaced,
all others require factory repair.
To replace the 91 sensor diode, unscrew the knurled cap and pull out the diode. Replace
it
with
a
1N53B
type diode that can be ordered from the manufacturer.
Alpha Industries, Inc.
20 Sylvan Road
Woburn, MA 01807
On order from
EIP by part number 2730053.
EIP has an assembly exchange program for rapid repair of damaged units. Consult factory for details.
Scans by ArtekMedia © 2007
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