Codan Radio Communications VT 30 Users Guide

VHF AMP-2 30 W
POWER AMPLIFIER
INSTRUCTION MANUAL

136 - 174 MHZ

Covers Models:
AMP-2/145-30-00
AMP-2/155-30-00
AMP-2/170-30-00

Copyright © 2004 Daniels Electronics Ltd. All rights reserved. No
part of this publication may be reproduced, stored in a retrieval system
or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording or otherwise, without the prior written consent
of Daniels Electronics Ltd.

Document Number:

Revision:

Revision Date:

DE™ is a registered trademark of Daniels Electronic Ltd. registered in
the U.S. Patent and Trademark Offi ce.

IM71-AMP2150-30
7-2-0
Oct 2004

Daniels Electronics Ltd.

Victoria, BC

PRINTED IN CANADA

ii

DOCUMENT CONTROL

DOCUMENT REVISION

DEFINITION

This document has been produced, verifi ed and controlled in
accordance with Daniels Electronics’ Quality Management System
requirements.

Please report any errors or problems to Daniels Electronics’ Customer
Service Department.

Daniels Electonics Ltd. utilizes a three-level revision system. This system
enables Daniels to identify the signifi cance of a revision. Each element
of the revision number signifi es the scope of change as described in the
diagram below.

1-0-0

Major Revisions: The result of a major
change to product function, process or

requirements.

Minor Revisions: The result of a
minor change to product, process or

requirements.

Editorial Revisions: The result of typing
corrections or changes in formatting,

grammar or wording.

NOTE

Three-level revision numbers start at 1-0-0 for the fi rst release. The
appropriate element of the revision number is incremented by 1 for each
subsequent revision, causing any digits to the right to be reset to 0.

For example:
If the current revision = 2-1-1 Then the next major revision = 3-0-0
If the current revision = 4-3-1 Then the next minor revision = 4-4-0
If the current revision = 3-2-2 Then the next editorial revision = 3-2-3

The complete revision history is provided at the back of the document.

The user’s authority to operate this equipment could be revoked through
any changes or modifi cations not expressly approved by Daniels
Electronics Ltd.

The design of this equipment is subject to change due to continuous
development. This equipment may incorporate minor changes in detail
from the information contained in this manual.

VHF AMP-2 30 W Power Amplifi er Instruction Manual
IM71-AMP2150-30

RF Exposure Warning

Exposure to radio frequency (RF) energy has been identifi ed as a potential environmental factor that must be
considered before a radio transmitter can be authorized or licensed. The FCC has therefore developed maximum
permissible exposure (MPE) limits for fi eld strength and power density, listed in FCC 47 CFR § 1.1310. The
FCC has furthermore determined that determination of compliance with these exposure limits, and preparation
of an Environmental Assessment (EA) if the limits are exceeded, is necessary only for facilities, operations and
transmitters that fall into certain risk categories, listed in FCC 47 CFR § 1.1307 (b), Table 1. All other facilities,
operations and transmitters are categorically excluded from making such studies or preparing an EA, except as
indicated in FCC 47 CFR §§ 1.1307 (c) and (d).

Revised FCC OET Bulletin 65 (Edition 97-01) provides assistance in determining whether a proposed or existing
transmitting facility, operation or device complies with RF exposure limits. In accordance with OET Bulletin 65
and FCC 47 CFR § 1.1307 (b), this Daniels Electronics Ltd. transmitter is categorically excluded from routine
evaluation or preparing an EA for RF emissions and this exclusion is suffi cient basis for assuming compliance
with FCC MPE limits. This exclusion is subject to the limits specifi ed in FCC 47 CFR §§ 1.1307 (b) and 1.1310.
Daniels Electronics Ltd. has no reason to believe that this excluded transmitter encompasses exceptional
characteristics that could cause non-compliance.

Notes:

• The FCC’s exposure guidelines constitute exposure limits, not emission limits. They are relevant to

locations that are accessible to workers or members of the public. Such access can be restricted or
controlled by appropriate means (i.e. fences, warning signs, etc.).

• The FCC’s limits apply cumulatively to all sources of RF emissions affecting a given site. Sites
exceeding these limits are subject to an EA and must provide test reports indicating compliance.

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RF Safety Guidelines and Information

Base and Repeater radio transmitters are designed to generate and radiate RF energy by means of an external
antenna, typically mounted at a signifi cant height above ground to provide adequate signal coverage. The
following antenna installation guidelines are extracted from Appendix A to OET Bulletin 65 and must be adhered
to in order to ensure RF exposure compliance:

Non-building-mounted Antennas:

Height above ground level to lowest point of antenna ≥ 10 m or
Power ≤ 1000W ERP (1640 W EIRP)

Building-mounted Antennas:

Power ≤ 1000 W ERP (1640 W EIRP)

The following RF Safety Guidelines should be observed when working in or around transmitter sites:

• Do not work on or around any transmitting antenna while RF power is applied.

• Before working on an antenna, disable the appropriate transmitter and ensure a
“DO NOT USE” or similar sign is placed on or near the PTT or key-up control.

• Assume all antennas are active unless specifi cally indicated otherwise.

• Never operate a transmitter with the cover removed.

• Ensure all personnel entering a transmitter site have electromagnetic energy awareness training.

For more information on RF energy exposure and compliance, please refer to the following:

1) FCC Code of Regulations; 47 CFR §§ 1.1307 and 1.1310.

2) FCC OET Bulletin 65, Edition 97-01, “Evaluating Compliance with FCC Guidelines for

Human Exposure to Radiofrequency Electromagnetic Fields”.

3) http://www.fcc.gov/oet/rfsafety/

VHF AMP-2 30 W Power Amplifi er Instruction Manual

IM71-AMP2150-30

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VHF AMP-2 30 W Power Amplifi er Instruction Manual
IM71-AMP2150-30