Comet CWD-230 User Manual

Thank you for your purchasing our product.
Foryoursafety:
Read this manual carefully for proper handling and operation before using.
Keep this manual in a safe place for future reference.
● Appearance
● Specifications
Frequency Range : 2‐30MHz
Input Impedance : 50Ω
Max. Input Power : 150W (PEP)
VSWR : 2.0 or less (2‐18MHz), 3.0 or less (18‐30MHz)
Connector : Balun SO‐239 (M‐J type)
Antenna length : Approx. 25m (82ft)
Caution
You could be injured, or property
damage could be caused if you
don’t follow the below instructions.
● Parts List
1. CWD‐230 Antenna … 1 set
(w / Balun)
Warning
you might be killed or injured if you
don’t follow the below instructions.
Caution
① Check SWR before using. COMET Antenna Tuner
CAT‐300 is highly recommended for tuning. (In case
you use the tuner, make sure to check its max power.)
② Operation at this antenna in a residential area is
likely to cause interference. You’ll be required to take
whatever measures to correct the interference.
③ This antenna is outdoor large equipment, so you’ll
be careful when you erect this antenna in order not to
bother your neighbors.
Instruction Manual
Warning : you might be killed or injured if
you don’t follow the below instructions.
① Select a safe place, according to the related laws
and regulation in your country.
② Choose a calm day to erect the antenna to avoid
accidents.
③ Do not try to erect the antenna while lightning.
④ Do not touch the antenna while transmitting,
otherwise you might get burned.
⑤ Do not erect this antenna near any overhead
wires or illuminating lamps. It would cause a serious
accident if the antenna falls.
⑥ Select a stable site. Erecting the antenna in a
precarious place might cause serious accident.
⑦ Be careful not to fall any tools or screws from
the high place while erecting the antenna.
Make sure to fix the coax cable securely. Otherwise
stiff wind could fan the cable, and cause the serious
damage.

Comet CWD-230 Specifications

General

Brand	Comet
Model	CWD-230
Category	Antenna
Language	English

Summary

Safety Precautions

General Safety Warnings

Covers critical risks of injury or death and property damage from non-compliance with instructions.

Detailed Safety Instructions

Provides specific steps for safe antenna installation and operation, covering environmental and user safety.

Product Overview

Antenna Appearance and Components

Illustrates the physical structure of the CWD-230 antenna, detailing key parts like wire elements, balun, and insulators.

Specifications

Technical Data

Lists key performance parameters including frequency range, impedance, power handling, VSWR, connector type, and antenna length.

Parts List

Included Components

Details the items included in the CWD-230 antenna package, confirming the main unit and balun.

Installation Instructions

Installation Steps

Outlines the procedure for installing the antenna, emphasizing compliance with laws, parallel alignment, and secure connections.

Installation Images

Displays visual examples of different antenna mounting configurations: Flat Top, Inverted V, and Sloper installations.

VSWR Measurement

VSWR Check Procedure

Explains how to measure VSWR, emphasizing the need for normal ranges and potential environmental influences.

VSWR Influencing Factors

Discusses factors like surrounding buildings and ground height that can affect VSWR readings, recommending minimum height.