Tektronix 485, Instruction Manual

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Specification—485/R485 Service
PROBE PERFORMANCE
(Probes are Optional Accessories)
Temperature Range
Lower
Bandwidth for this
Input
—3 dB point with 485 Bandwidth
Type
Atten. Impedance (maximum)
(minimum) Specification
For Use With 50 $2 Input
010-6056-03 - 6 f t .
P6056
10X 500 S2 1 pF
200 Hz 350 MHz
0 1 0 -6 0 5 6 -0 5 -9 ft.
010-6057-03 - 6 f t .
- 1 5°C to +35°C
P6057
100X
5 kS2 1 pF 20 Hz 350 MHz
0 1 0 -6 0 5 7 -0 5 -9 ft.
.IX 100 kJ2 3 pF
10 Hz
P6201
0°C to +35° C
010-6201-01 - 6 ft.
Plug- 10X 1 MS2 <1.5 pF 1 Hz 330 MHz
(FET Probe)
On 100X
1 MS2 <1.5 pF 10 Hz
For Use With 1 MS2 Input
010-6053-11 - 3 1/2 ft. 1 M£2 9.5 pF 250 MHz
P6053A 010-6053-13 - 6 ft. 10X 1 M£2 12 pF 1 Hz 250 MHz
—15°C to +35° C
0 1 0 -6 0 5 3 -1 5 -9 ft.
1 ML2 13.5 pF 200 MHz
A and B T R IG G E R IN G
A Trigger Mode
NORMAL.
Sweep runs only when triggered.
AUTOMATIC.
Sweep free-runs in the absence of a triggering signal
and for signals below 20 Hz.
SINGLE SWEEP.
Sweep runs one time on the first triggering event after
pressing the reset selector.
Time Base A and B Trigger Sensitivity
Trigger Mode To 50 MHz A t 350 MHz
DC Int
0.3 div
1.5 div
DC Ext 20 mV
100 mV
AC Signals below 16 Hz are attenuated.
LF Reject Signals below 16 kHz are attenuated.
HF Reject Signals below 16 Hz and above 50 kHz
are attenuated.
B Trigger Mode
B RUNS AFTER DELAY TIME.
Starts automatically at the end of the delay time.
B TRIGGERABLE AFTER DELAY TIME.
Runs when triggered. The B (delayed) sweep runs
once, in each of these modes, following the A sweep
delay time.
Level and Slope
Internal, permits selection of triggering point at any level
on the positive and negative slope of the displayed
waveform. External, level is adjustable through at least
±0.5 V for either polarity (±5 V for EXT -MO).
A Source
Internal, Line, External, External MO.
REV. B, AUG. 1977
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