HP 8340A Operating Manual page 26

General Information
Table 1-1.
HP Model 8340A Specifications and Supplemental Pelformance Characteristics (13of15)
EXT TRIGGER INPUT
Rear panel BNC female connector. Triggers single sweep. Trigger signal must be> 2 Vdc (10 Vdc max)
and wider than 0.5 microseconds. Nominal input impedance is 2 kOhms.
STOP SWP IN/OUT:
Rear panel BNC female connector. TTL high while sweeping, stops sweep when grounded externally.
TTL low when 8340A stops sweep.
8755C INTERFACE
Rear panel. Connects via cable (HP Part No. 8120-3174) to HP 8755C Scalar Network Analyzer to
provide Alternate Sweep function.
84108 INTERFACE
Rear panel 25-pin D-type connector. Permits multi-octave operation of HP 8410B/C Network Analyzer
with 8340A, via interface cable (HP Part No. 08410-60146). Also provides duplicates of these functions:
Ext Trigger Input, Mute Output, Penlift Output, Neg Blank,
switch closure to execute the UP key function.
RF OUTPUT
Front panel Precision APC-3.5 male connector. Frequency output range is 10 MHz to 26.5 GHz.
Nominal output impedance is 50 Ohms. SWR is shown in RF OUTPUT characteristics.
SWEEP OUTPUT
Front and rear panel BNC female connectors. Supplies a voltage proportional to the sweep that ranges
from approximately 0 Vdc (at start of sweep) to approximately +10 Vdc (at end of sweep), regardless of
sweep width. In CW mode, the de voltage is proportional to percentage of full 10 MHz to 26.5 GHz
range.
1 V/GHz (19V Max)
Rear panel BNC female connector. Outputs a voltage proportional to output frequency at IV/GHz, up
to a maximum of 19 Vdc. Nominal load impedance should be �4 KOhms. Accuracy of 1 V/GHz is ±1
±2mV.
10 MHz REF OUTPUT
Rear panel BNC female connector. Output power level is nominally 0 dBm. Output impedance is
nominally 50 Ohms.
FREQUENCY STANDARD INT
Rear panel BNC connector. Output frequency 10 MHz, output power nominally 3 dBm, 50 Ohm
nominal output impedance. Jumpered to
timebase.
MUTE OUTPUT
Rear panel BNC female connector. Mutes servo motor of
switch point.
PEN LIFT OUTPUT J13
For operation with
during sweep retrace.
during forward sweep band switchpoints. Because of
disable the X-Y recorder's pen at sweep times under 5 seconds.
PENLIFT enables pen operation by providing a current path to ground for the
solenoid. The voltage at the PENLIFT output in this state will be approximately 0 V de. Circuit
impedance in this state is approximately .5 Ohms.
PENLIFT disables pen operation by not providing a current path to ground for the
solenoid. The voltage on the PENLIFT output will be equal to the
voltage. Circuit impedance in this state is very high.
Specifications are shaded; Supplemental Performance Characteristics are not.
1-18
INPUTS
OUTPUTS
FREQUENCY STANDARD EXT
X-Y recorders. PENLIFT DISABLES AN
is pressed on the front panel, PENLIFT will also disable the pen
lf[SHIFT] [LINE]
Scans by HB9HCA and HB9FSX
(Cont'd)
and Also provides an input for a
Z-Axis Blank/Mkrs.
for operation from 8340A's internal
X-Y recorder when the 8340A crosses a band
X-Y recorder's ability to lower its pen
X-Y recorder limitations PENLIFT will always
X-Y recorder's pen solenoid supply
Model 8340A
%
X-Y recorder's pen
X-Y recorder's pen