Model 3585A
General Information
1 ·8. Recommended Test Equipment
Equipment required to maintain the Model 3585A is listed in Table 1 -2. Other equipment
may be substituted if it meets the requirements listed in the table.
Table 1 · 1 . Specifications
NOTE
Specifications are guaranteed only when the Auto Calibration is on,
the
OVEN REF OUT
is connected to the
EXT REF IN
and the instru
ment has warmed up at least
20
minutes at the ambient
temperature.
FREOUENCY:
Measurement Range:
20 Hz to 40 . 1 M Hz
Displayed Range:
Frequency Span:
o
Hz to 40. 1 MHz Settable with 0 . 1 Hz resolution
1 0 Hz to 40 MHz in 1 , 2, 5 steps
Accuracy:
-0070
+
0 . 2 % of Frequency Span setting
Marker:
Readout Accuracy:
± 0 . 2 % of Frequency Span ± Resolution Bandwidth
Counter Accuracy:
± 0 . 3 Hz ± 1
x
1 0-7/month of counted frequency for a signal 20 dB greater
than other signals and noise in the resolution bandwidth setting.
Manual Frequency Accuracy:
± 0. 1 Hz ± 1
x
1 0-7/month using the internal reference.
Resolution:
Resolution Bandwidths
3 dB bandwidths of 3 Hz to 30 kHz in a 1 , 3, 1 0 sequence
Accuracy
± 20% at the 3 dB points
Selectivity (Shape Factor)
60 dB/3dB < 1 1 : 1
AMPLITUDE:
Measurement Range:
Terminated (501750) input
- 1 3 7 dBm to
+
30 dBm or equivalent level in dBV or volts
High Impedance ( 1 MO) input
3 1 nV to 22V
1 -5
