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Central Electronics
INTRODUCTION
This manual has been reproduced by James Lawrence, NA5RC, a 600L owner. Text no
longer applicable such as 'insurance claim with the carrier' has been deleted. Some
capitalization and grammar has been changed where appropriate. A rear layout has been
added.
INTRODUCTION ....................................................................................................................... 1
INSTALLATION INSTRUCTIONS ............................................................................................. 2
RF Input ................................................................................................................................. 2
Antenna ................................................................................................................................. 2
TR Switch .............................................................................................................................. 2
External Blocking Bias ........................................................................................................... 2
Internal Keying Bias ............................................................................................................... 3
Power Source ........................................................................................................................ 3
Adjust No-Signal Dissipation ................................................................................................. 3
OPERATION ............................................................................................................................. 3
Single Side Band (SSB) ........................................................................................................ 3
Amplitude Modulation (AM) ................................................................................................... 3
Phase Modulation (PM or FM) ............................................................................................... 3
RF Amp Meter Scale ............................................................................................................. 3
Reflected Power Meter Scale ................................................................................................ 4
TVI ......................................................................................................................................... 4
Plate Overload ....................................................................................................................... 4
Load Mismatch Breaker ......................................................................................................... 4
SAFETY .................................................................................................................................... 4
APPENDIX ................................................................................................................................ 5
Rear Layout ........................................................................................................................... 5
600L_Manual.doc
Model 600L
Table of Contents
Page 1 of 5
Linear Amplifier
na5rc@na5rc.net
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Summary of Contents for Central Electronics 600L
- Page 1 Linear Amplifier INTRODUCTION This manual has been reproduced by James Lawrence, NA5RC, a 600L owner. Text no longer applicable such as ‘insurance claim with the carrier’ has been deleted. Some capitalization and grammar has been changed where appropriate. A rear layout has been added.
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Page 2: Installation Instructions
25 to 100 Ohm loads. For best results the SWR should not exceed 2:1. The 600L will work with higher standing wave ratios, however it is to your advantage to provide the best possible match between your antenna and its feed line. -
Page 3: Operation
Linear Amplifier Internal Keying Bias When using a non-CE exciter that does not furnish blocking bias, the 600L internal keying bias can be utilized. The jumper on bias terminals #1 and #2 should be replaced by a pair of contacts on the exciter that will close during transmit and open during standby. - Page 4 It is essentially in series with the Plate Supply Switch. Load Mismatch Breaker The SWR Bridge in the output circuit of the 600L is used to control the internal blocking bias to prevent damage to the 813 in the event the unit is operated without a load.
- Page 5 Central Electronics Model 600L Linear Amplifier APPENDIX Rear Layout 600L_Manual.doc Page 5 of 5 na5rc@na5rc.net...