Tektronix 1705A ELECTRICAL SPECIFICATION

Introduction
1-4 1705A Spectrum Monitor
ELECTRICAL SPECIFICATION
Table1- 1: Spectrum Display
Characteristic
Performance
Requirements SupplementalInformation
Check
Step
FrequencyRange
L--- Ba n d
70 MHz
950 to 1800 MHz
45 to 100 MHz
F---type connector
Bnc connector
FrequencySpan
L--- Ba n d
Full
10 MHz/Division
1 MHz/Division
100 kHz/Division
70 MHz
Full
1 MHz/Division
100 kHz/Division
10 Horiz. Div. Equals:
1000 MHz
100 MHz
10 MHz
1MHz
10 Horiz. Div. Equals:
50 MHz
10 MHz
1MHz
11
5
Span/Div Accuracy Typically0.5 minor Division.
Brightup offset by 1 Division in FULL
SPAN/DIVshould still come on screen
in the next magnified position.
4, 5, 10, 11
11
Flatness L---Band ±5 dB.
70 MHz±2 dB .
± from center (1400 MHz).
± from center (70 MHz).
12,
7
Maximum Signal Input L--- Ba n d : --- 3 0 dB m ,
75Ω.70MHz:
---20 dBm, 75Ω..
Minimum Signal Input --- 80 dB m .
RelativeAmplitude Accuracy L---Band (only)
±3 dB/100 MHz.
Typically±1 dB /100 MHz. 12
Sweep Length ¶12 Divisions all SPANS/DIVsettings. 4
Sweep Speed Typically20 --- 200 ms. 9
PositioningRange
Vert i c a l
Horizontal
+ and ---3 Divisions.
+ and ---2 Divisions.
13
Displayed Frequencies in FULL
SPAN/DIV
L---BAND (900 ---1900 MHz)
70 MHz(45 --- 100 MHz)
Left Grat. Mid Grat. Right Grat.
Edge Line Edge
900 1400 1900
45 70 95
11
5
FrequencyReadout CenterFrequency shown by time
sharing graphic readout. Exact posi-
tionon the trace of the center frequen-
cy shown by a caret in all spans except
FULL.
11