Radio Shack HTX-420 owner manual +0641&7%6+1061, #/#6744#&+1

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19-1108					OWNER’S MANUAL — Please read before using this equipment.
%106'065				Thank you for purchasing a RadioShack HTX-420 2-Meter/70 cm Dual Band FM Amateur
Preparation		2		Transceiver. Your transceiver is compact and rugged, making it easy to carry almost anywhere.
Using Internal Batteries		2		The crystal controlled circuitry provides accurate and stable frequency selection, making it an
Using AC or DC Power		2		ideal choice for your amateur communications needs.
Connecting the Antenna		2
Attaching the Belt Clip		2		Electronic Compass —	provides two letters to
Attaching the Wrist Strap		2
				indicate direction (such as SW or NW) and up to
Connecting a Microphone/Speaker		2
A Quick Look At the Display		3		three digits to show directional angle (such as
Operation		4		360°, 180°, 90° or 45°). See “Using the
Manual Conventions		4
				Electronic Compass” on page 9.
Turning On/Off the Transceiver	................................	4
Setting the Squelch Level		4
Temporarily Opening Squelch		4
Using the Universal Type Keys		4		Full 16-Key DTMF (Dual-Tone Multi
Selecting Frequencies (Direct Tuning) and Receiving
Transmissions		4		Frequency) Keypad —	lets you dial and
Transmitting		4		make telephone connections. See
Understanding Repeaters		5		“Transmitting a DTMF Code” on page 7.
Setting the Repeater Offset Frequency		5
Turning Repeater Operation On/Off and Changing
The Offset Direction		5		Programmable Frequency Steps — let
Memory Operation		5
				you set the frequency increment for
Storing a Transmit/Receive Frequency		5
Recalling Memory Locations		5		tuning or scanning to steps of 5, 6.25, 7.5,
Checking Memory Location Settings		6		10, 12.5, 15, 20, 25, or 50 kHz. See
Clearing a Single Memory		6		“Setting the Frequency Step” on page 8.
Using the Calling-Frequency Memory		6
Scanning Operation		6
Scanning for Active Frequencies		6		SAME Weather Alert —	uses Specific
Scanning Standard Memory Locations		6
Skipping Memory Channels While Scanning		6		Area Message Encoding (SAME) digital
Continuous Tone Coded Squelch System Features				information to determine and display the
(CTCSS)		6
				level of weather events. See “Using the
Setting the CTCSS Tones		6
				SAME Alert” on page 8.
Using the CTCSS Tones		7
Using DTMF Code		7
Transmitting a DTMF Code		7
Using the Transceiver with Packet Radio		7
Locking the Keypad		8	+0641&7%6+10"61"
Lighting the Display		8				and want nothing to do with “bootleggers” –
Turning the Key Tone On and Off		8				their term for people who operate without a
Setting the Frequency Step		8	#/#6'74"4#&+1
						license. ±
Power Save		8
Using Auto Power Shutoff		8		Amateur radio is a great hobby that has
Limiting Transmit Duration (Time-Out Timer)		8				If you do not hear anyone talking about a
				enriched the lives of millions of people all
Tuning the Weather Radio Frequencies		8				local club as you listen to local transmissions,
Using the SAME Alert		8		over the world. Your transceiver is the perfect
						write to the American Radio Relay League
Using the Electronic Compass		9		first radio for anyone entering the exciting
Selecting the Transmit Power		10				(ARRL) at the following address to find out
				world of amateur radio, or as a great
Cross Band Channel Operation		10
	.............................					how to contact a local affiliate. The ARRL is
Dual Watch		10		additional transceiver for the experienced
Receiving the Air Band		10				the national organization representing
				amateur radio operator. Your transceiver
Changing the Transmit Frequency Range		10				amateur radio in the United States. The
FCC Information		10		opens a door for you to the world from almost
						league has more than 150,000 members.
Care		10		anywhere! All you need is an Amateur Radio
ERR Display		10				Most are ham operators, or members in the
				Operator's License (Technician Class or
Service and Repair		11				process of obtaining their license.
Resetting the Transceiver		11		higher) issued by the Federal
Specifications		11		Communications Commission (FCC). If you		The American Radio Relay League
				do not have a license, it is easy to get one,
#"+/2146#06"#						225 Main Street
				and help from licensed operators is available.
If an icon appears at the end of a paragraph, go						Newington, CT 06111
				Find out if there is a ham radio club in your
to the box on that page with the corresponding						http://www.arrl.org
				area. Most clubs welcome newcomers and
icon for pertinent information.
				are glad to help you get your license. Here
Rý— Warning	# — Important					Start studying for the license exams. Most
				are a few tips to help you get started.
. — Caution	± — Note					people can go from knowing absolutely
				You can turn on your transceiver and scan		nothing about amateur radio to passing the
						Technician written exam in less than a
±"016'"±"				the entire band to hear what is going on;
						month.
				however, do not attempt to transmit until
You must have a Technician Class or higher
				you get your license. If you transmit without		The exams test your knowledge of basic
Amateur Radio Operator's License, and a call				a license, you are in violation of federal law
sign issued by the FCC, to legally transmit using						radio regulations and elementary radio
				that can lead to severe penalties. Ham
this transceiver. Transmitting without a license						theory. Many clubs hold license classes
				operators take the FCC rules very seriously
carries heavy penalties.						which can be a fun and easy way to learn

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