Chapter 1 43
Quick Start Guide
Rear Panel Overview
7. X POSN, Y POSN, and TRACE ALIGN on 8560 E-series
instruments allow you to align the spectrum analyzer display of
using a special CRT pattern. Refer to the softkey
CRT ADJ PATTERN
under the CAL menu, or consult the service guide for your model of
spectrum analyzer. 8560 EC-Series instruments are not adjustable.
8. J11 ALC EXT INPUT provides either an external leveling input or
an alternate sweep output that corresponds to the sweep ramp that
tunes the local oscillator.
For an 8560E/EC, Option 002 (which has a built-in tracking
generator), J11 provides an external leveling input. For an Option
005, J11 provides a 0 V to 10 V ramp that corresponds to the sweep
ramp that tunes the local oscillator (the same local oscillator sweep
ramp that J8 provides).
9. VOLTAGE SELECTOR switch adapts thespectrum analyzer to the
power source: either 115 V or 230 V.
10. J10 2ND IF OUT is the Option 001, 310.7 MHz IF output.
11. J9 10 MHz REF IN/OUT provides a 10 MHz, 0 dBm minimum,
time-base reference signal. This connector can be switched to an
input, to use an external reference. An external reference must be 10
MHz at a minimum of −2 dBm. To select the external reference
mode, press
AUX CTRL, REAR PANEL, 10 MHZ EXT INT.
12. J8 LO SWP|FAV OUTPUT provides different signals at connector
J8: a 0 V to 10 V ramp corresponding to the local oscillator tune
ramp, or a sweeping dc output of 0.5 V per GHz of tuned frequency
(and 0.25 V for the 8564E/EC and 8565E/EC). The voltage range of
the sweeping dc output depends on the spectrum analyzer frequency
range. Select the output with the softkeys that are accessed when
you press
AUX CTRL, REAR PANEL.
The 0.25 V/GHz output is needed for frequency ranges above 26
GHz. External tracking generators, such as the 85640A, 85644A, or
85645A use the 0.5 V/GHz output. When you have selected
preselected external mixers, the 0.5 V/GHz output provides
approximately 1.5 V per GHz of LO frequency, to control the
preselected mixer.
13.The LINE input operates at nominally 115 V (47 to 440 Hz) or at
nominally 230 V (47 to 66 Hz).
14.J1 VGA OUT port on 8560 EC-series instruments provides a VGA
port. The VGA port is always active and does not require user
interface.
15. J7 EARPHONE provides a 4 Ω impedance earphone jack on 8560
EC-series instruments.
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