Tektronix 1705A 1705A Spectrum Monitor 1-5, Table1- 1: Spectrum Display (Cont.), Table1- 2: CRT Display, Table1- 3: Power Source

Introduction
1705A Spectrum Monitor 1-5
Table1- 1: Spectrum Display (Cont.)
Characteristic
Check
Step
Supplemental Information
Performance
Requirements
FrequencyBri ghtUp
Marker Registration
FullSpan has bright up and frequency
readout (without cursor). Bright-up
area will be on screen in at least the
next narrower span.
5
ReadoutAccuracy L---Band ±20 MHz.
70 MHz±2 MHz
Typically±10 MHz.
Typically±1 MHz.
11
5
Resolu tion
6dBDown
300 kHz
10 kHz
300 kHz±1 Di vision at 100 kHz
Span/Div.
<2 minor Divisions at 100 kHz Span/
Div.
6
6
Video Fi lter ReducesVideo bandwidth to ¶10 kHz. 8
Low Noise Amplifier/Block Down
Converter dc Supply (LNB Power)
+18 Vdc ±5%. 250
mA max.
Output through L---BANDinput
connector, switched on and off by
rear-panel slide switch. LED indi cator
on rear panel.
3
2 dB Gain Accuracy ¶2 dB/Division. <3dB/Division at ---50dBm. 14
Table1- 2: CRT Display
Characteristic
Performance
Requirements Supplemental Information
Check
Step
Crt Viewing Area 80 X 100 mm.
AcceleratingPotential 13.75 kV.
TraceRotation Range Greater than ±1˚
from horizontal.
Totaladjustment rangeis typically 8˚.
Graticule Internal 8 X 10 Division spectrum
analyzergraticule with variableSCALE
illumination.
Table1- 3: Power Source
Characteristic
Performance
Requirements Supplemental Information
Check
Step
Mains VoltageRange 90---250 V. Continuous range from 90 to 250 Vac. 2
Mains Frequency Range 48 Hz to 66 Hz.
PowerConsumption 35 Watts(120 BTU/HR) maximum.