Introduction

ELECTRICAL SPECIFICATION

Table 1- 1: Spectrum Display

 

Performance

 

 

 

 

 

Check

Characteristic

Requirements

 

Supplemental Information

Step

 

 

 

 

 

 

 

 

Frequency Range

 

 

 

 

 

 

 

L---Band

950 to 1800 MHz

 

F---type connector

 

 

 

70 MHz

45 to 100 MHz

 

Bnc connector

 

 

 

Frequency Span

 

 

 

 

 

 

 

L---Band

 

 

10 Horiz. Div. Equals:

 

 

11

Full

 

 

1000 MHz

 

 

 

10 MHz/Division

 

 

100 MHz

 

 

 

1 MHz/Division

 

 

10 MHz

 

 

 

 

100 kHz/Division

 

 

1 MHz

 

 

 

 

70 MHz

 

 

10 Horiz. Div. Equals:

 

 

5

Full

 

 

50 MHz

 

 

 

 

1 MHz/Division

 

 

10 MHz

 

 

 

 

100 kHz/Division

 

 

1 MHz

 

 

 

 

Span/Div Accuracy

 

 

Typically 0.5 minor Division.

4, 5, 10, 11

 

 

 

Brightup offset by 1 Division in FULL

11

 

 

 

SPAN/DIV should still come on screen

 

 

 

 

in the next magnified position.

 

 

 

 

 

 

 

Flatness

L---Band ±5 dB.

 

± from center (1400 MHz).

12,

 

70 MHz ±2 dB.

 

± from center (70 MHz).

7

Maximum Signal Input

L---Band: ---30 dBm,

 

 

 

 

 

 

 

75Ω. 70 MHz:

 

 

 

 

 

 

 

---20 dBm, 75Ω..

 

 

 

 

 

 

Minimum Signal Input

---80 dBm.

 

 

 

 

 

 

Relative Amplitude Accuracy

L---Band (only)

 

Typically ±1 dB /100 MHz.

12

 

±3 dB/100 MHz.

 

 

 

 

 

 

Sweep Length

 

 

¶12 Divisions all SPANS/DIV settings.

4

Sweep Speed

 

 

Typically 20 --- 200 ms.

 

 

9

Positioning Range

 

 

 

 

 

 

13

Vertical

+ and ---3 Divisions.

 

 

 

 

 

 

Horizontal

+ and ---2 Divisions.

 

 

 

 

 

 

Displayed Frequencies in FULL

 

 

Left Grat.

Mid Grat.

Right Grat.

 

SPAN/DIV

 

 

Edge

Line

Edge

 

L---BAND (900 --- 1900 MHz)

 

 

900

1400

1900

 

11

70 MHz (45 --- 100 MHz)

 

 

45

70

95

 

5

Frequency Readout

 

 

Center Frequency shown by time

 

 

 

 

sharing graphic readout. Exact posi-

 

 

 

 

tion on the trace of the center frequen-

11

 

 

 

cy shown by a caret in all spans except

 

 

 

 

FULL.

 

 

 

 

1- 4

1705A Spectrum Monitor

Page 23
Image 23
Tektronix 1705A instruction manual Spectrum Display, Span/Div, Full