Kenwood PF 810 Service Manual

Page 2

CONTENTS

Introduction .......................... 3
Features .............................. 4
Specifications .......................... 4
Principles of operation .................... 5
Operating parts ........................ 7
Cautions ............................ 9
Operation ............................ 9
Schematic diagram ...................... 12
Smith chart .......................... 13
Applications .......................... 14

INTRODUCTION

The Function Power Meter Model PF-810 is a passing
type power/SWR meter covering a wide frequency range
of 1.8MHz to 200MHz. It is a laboratory quality, profes-
sional instrument for observing and measuring forward
power from transmitter to load (antenna) and reflection
power from load to transmitter.

it is also capable of measuring power actually can-
sumed in load (forward power minus reflection power)
for convenience of checking the conditions of trans-
mitter and load, in addition to measuring SWR at power
greater than 1W.

Besides being used to monitor the operating condi-
tions of transmitter or to adjust filters, matching circuit,
etc., it is also used to monitor production lines and
business use radio stations.