Samsung Satellite Radio 20 006A User Guide

20-006.fm Page 1 Tuesday, August 3, 1999 2:25 PM

Cat. No. 20-006A

Telescoping Antenna for Portable Scanners

and Walkie Talkies

You can use this telescoping antenna for either receiving or transmitting. You can

use it as a receiving antenna from 25 MHz through the 1296 MHz Ham Band, and

you can use it as a ¹/⁴wavelength transmitting antenna from 130 MHz through 535

MHz.

USING THE ANTENNA FOR TRANSMITTING

For transmitting, you must set the antenna length as close as possible to the trans-

mitting frequency’s /⁴wavelength. This ensures the best possible transmission by

using the proper standing wave ratio (SWR).

Cautions:

• When you use the antenna to transmit, you must always collapse the section

located just above the loading coil. If you do not, you might damage the

antenna and/or your radio.

• When you use the antenna to transmit, you must calculate the /⁴wavelength

and adjust the antenna length accordingly. If you do not do this, you can dam-

age your transmitting equipment due to an improper standing wave ratio

(SWR).

Use this formula to calculate the proper length for a /⁴wavelength transmitting an-

tenna:

2834

Freq. in MHz = Antenna Length in Inches

Example:

2834

147 (MHz) =19.3 Inches

RadioShack is a trademark used by Tandy Corporation.

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