Kenwood SM 220 Owners Manual

Page 2

Section 1 ,

Figure

2.
3.

599585375"?

3-1.

4-1.
4-2.
5-1.

5-2.

5-4.
5-5.
5-6.
5-7.
5-8.

5-9.

AFTER UNPACKING

Shipping Container:

Save the boxes and packing in the event your unit needs to be transported for remote

operation. maintenance. or service.

The following explicit definitions apply in this manual:
NOTE: lf disregarded, inconvenience only - No risk of equipment damage or personal injury.
CAUTION: Equipment damage many occur, but not personal injury,

WARNING: Personal injury may occur -

CONTENTS

Specifications . 3
Introduction and features , 4
Cabling requirements and preliminary
instructions .................................... 5
Controls, indicators and connectors. ., 6
Operation ............. 8
Circuit description , 12

Adjustments and maintenance.
Pan display operation
Schematic diagrams .,
Illustrations and tables

Assembled UHF connector cable ....... 5

Assembling a 3 NC connector cable 5
Front panel .. 6
Rear panel 7
Cabling for transmit and receive

displays ....................................... 8

TSASZOS IF output matching .......
*Single tone input (2 examples)... ..
* Keyed waveform (2) ......................... 10
*Twotone modulation envelope (2) 10
*Voice modulation envelope (2)...
*Trapezoid waveforms (2) ...........
Connection torTrapezoid waveform
observation ................................ 11
*RTTY cross patterns (3) ................. . 11

Table

510.
5-11.
6-1.
7-1.
7-2,
8-1.

8-3.
84.
8.5.

8-6.

5-2.

5-3.

5-4.

DO NOT DlSREGARDl

Cabling for RTTY cross pattern
observation ..........................
*Lissajous figure example (1
Blockdiagram ........................ .
Adjustment access (case bottom). , 14
*Two-tone oscillator waveform (2) ..... 14
Installing the Pan Display
adaptor ............................
Pan Display adjustment
*Pan Display waveforms (3)
Pan Display output cable.
TS-520 series iF sample cable
installation.
TS-820 series IF sample cable
installation. ....16
*Scope display examples (number of
conditions illustrated).
Control settings. transmit signal
observation 8
Control settings,Trapezord waveform
observation. ....10
Control settings, RTTY cross pattern
observation ,
Control settings. oscilloscope
operation

16