Informações do equipamento

Radio Shack Division HTX-242 Transceiver
Fabricante:
Radio Shack Division
Modelo: HTX-242
Data: 1995
Categoria: Rádio Comunicação,
Grupo: Transceiver
Descrição: TWO-METER MOBILE TRANSCEIVER
Informações:
                                    Your HTX-242 Two-Meter Mobile Transceiver is an exciting
addition to Radio Shack’s growing line of high-quality
amateur radio
equipment. It offers some of the most advanced, and most
requested, features available in a mobile transceiver. Be
sure to read this entire manual to understand how to use all
the radio’s features.

FEATURES
2
Auto Memory Store (AMS)—automatically searches for active
frequencies and stores them in memory, including the appropriate
repeater offset.
High (45 Watt) and Low (10 Watt) Power Settings—let you select
the best power setting for effective communications.
True FM Modulation—provides a clear, natural-sounding signal.
41 Memory Channels—hold one calling frequency and 40
standard frequencies.
Priority Memory Channel 1—lets you set the HTX-242 to
periodically check the frequency stored in Memory Channel 1
and alert
you if there is activity on it.
Individually Programmable Repeater Offsets —let you program
different repeater offset frequencies for each memory, and a
default repeater offset for manually-tuned frequencies.
Subaudible Tone Transmit and Receive (CTCSS) —transmits the
subaudible tones required to use some repeaters, and also
lets you
set a subaudible tone that your transceiver must receive to open
squelch.
DTMF Page with Group Calling—lets you set a sequence of up to
seven DTMF tones that your transceiver must receive to sound an
alert tone and open squelch.
DTMF Transmit and Memory —lets you manually send DTMF
tones or send DTMF sequences of up to 15 digits each from one of
10 DTMF memories to quickly access DTMF-access repeaters,
autopatches, or other stations equipped with a DTMF page
feature.

Estes manuais estão disponíveis para os equipamentos acima:

Tipo manual: Manual de serviço RadioShack-8929-Manual-Page-1-Picture
Páginas: 72
Tamanho: 41.19 Mbytes (43191499 Bytes)
Língua: Inglês
Revisão:
Manual-ID/número: 19-1126
Data: 01 Janeiro 1995
Qualidade: Documento Scaned, a leitura parcialmente mal, não parcialmente legível.
Upload de data:
MD5: 97dc779d09d4e2cfe9eaf4434dd4885c
Downloads: 73 desde 18 Abril 2017
Informações:
Specifications................................................................................................................................2

Block
Diagrams.............................................................................................................................5

Disassembly
Instructions...............................................................................................................6

Theory of
Operation.......................................................................................................................7

Alignment and
Adjustment.........................................................................................................12

Troubleshooting......................................................................................................................17

Error
Display...............................................................................................................................18

Printed Circuit
Board..................................................................................................................19

Wiring
Diagram...........................................................................................................................24

Exploded
View............................................................................................................................25

Exploded View Parts
List............................................................................................................26

Electrical Parts
List.....................................................................................................................28

Semiconductor Lead Identification and IC Internal
Diagram......................................................46

Semiconductor Voltage
Chart....................................................................................................57

Schematic
Diagram....................................................................................................................63
RadioShack-8929-Manual-Page-1-Picture


Tipo manual: Manual do Usuário RadioShack-8930-Manual-Page-1-Picture
Páginas: 48
Tamanho: 116.21 Kbytes (118995 Bytes)
Língua: Inglês
Revisão:
Manual-ID/número: 19-1126
Data: 01 Janeiro 1996
Qualidade: Documento eletrônico, digitalização, bem legível.
Upload de data:
MD5: 0f1a42749a2f9f2ccc818f5ae866c0b4
Downloads: 50 desde 18 Abril 2017
Informações:
Installation . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . 6
Unpacking the Transceiver . . . . . . . . . . . . . . . . .
. . . . . . . . 6
Connecting the Microphone . . . . . . . . . . . . . . . . .
. . . . . . . . 6
Mounting the HTX-242 in a Vehicle . . . . . . . . . . . . .
. . . . . . 7
Connecting an Antenna . . . . . . . . . . . . . . . . . . .
. . . . . . . . . 8
Connecting to your Vehicle’s Power . . . . . . . . . . . . .
. . . . . . 9
Using the HTX-242 as a Base Station . . . . . . . . . . . .
. . . . 10
Using the HTX-242 with Packet Radio . . . . . . . . . . . .
. . . . 11
Connecting an External Speaker (Optional) . . . . . . . . .
. . . 11
Understanding the HTX-242 . . . . . . . . .
 . . . . . . . . . . . . . .
 12
Dual VFO Modes . . . . . . . . . . . . . . . . .
 . . . . . . . . . . . . . . .
 12
DTMF (Touch-Tone) Features . . . . . . .
 . . . . . . . . . . . . . . .
 12
Subaudible Tone (CTCSS) Features . . .
 . . . . . . . . . . . . . . .
 13
Repeater Operation . . . . . . . . . . . . . . .
 . . . . . . . . . . . . . . .
 13
Memory Channels . . . . . . . . . . . . . . . .
 . . . . . . . . . . . . . . .
 13
Understanding the Display . . . . . . . . .
 . . . . . . . . . . . . . . .
 14
Basic Operation . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
 16
Turning On/Off Your HTX-242 . . . . . . . . . . . . . . . .
. . . . .
 16
Resetting the HTX-242 . . . . . . . . . . . . . . . . . . .
. . . . . . . .
 16
Extending the Transmit Frequency Range . . . . . . . . . . . . .
 16
Setting Volume and Squelch . . . . . . . . . . . . . . . . .
. . . . . .
 17
Using the Light . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
 17
Setting the Power Level . . . . . . . . . . . . . . . . . .
. . . . . . . . .
 17
Locking the Controls . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
 17
Selecting a Frequency . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
 18
Directly Entering a Frequency . . . . . . . . . . . . . . .
. . . .
 18
Tuning to a Frequency . . . . . . . . . . . . . . . . . . .
. . . . .
 18
Scanning for a Frequency . . . . . . . . . . . . . . . . . .
. . . .
 19
Setting the Frequency Step . . . . . . . . . . . . . . . . .
. . . . . . .
 19
Setting the Scan Options . . . . . . . . . . . . . . . . . .
. . . . . . . .
 20
Storing Scan Skip Frequencies . . . . . . . . . . . . . . .
. . .
 20
Setting the Scan Resume Condition . . . . . . . . . . . . . .
 20
Setting the Scan Resume Delay . . . . . . . . . . . . . . .
. . .
 21
Setting the Scanning Range . . . . . . . . . . . . . . . . .
. . .
 21
Receiving Transmissions . . . . . . . . . . . . . . . . . .
. . . . . . . .
 22
Transmitting . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
 22
Manually Transmitting DTMF Tones . . . . . . . . . . . . . .
 23
Transmitting DTMF Tones from Memory . . . . . . . . . . .
 23
Limiting Transmit Duration . . . . . . . . . . . . . . . . .
. . .
 24
Turning the Keytone Beep On and Off . . . . . . . . . . . .
. . . .
 24
Advanced Operation . . . . . . . . . . . . . . . . . . . . .
. . . . . . . .
 25
Frequency Offset Defaults . . . . . . . . . . . . . . . . .
. . . . . . . .
 25
Turning Auto Duplex On and Off . . . . . . . . . . . . . . . .
 25
Changing the Default Offset . . . . . . . . . . . . . . . .
. . . .
 26
Reversing the Offset . . . . . . . . . . . . . . . . . . . .
. . . . . .
 26
Overriding the Duplex Offset . . . . . . . . . . . . . . . .
. . . .
 26
Using the Dual VFOs for Duplex Operation . . . . . . . . . . . .
 27
Using Memory Channels . . . . . . . . . . . . . . . . . . .
. . . . . . .
 28
Storing a Frequency . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
 28
Changing Stored Settings . . . . . . . . . . . . . . . . . .
. . . . . . .
 28
Using Auto Memory Store (AMS) . . . . . . . . . . . . . . .
. . . . .
 29
Tuning to a Standard Memory Channel . . . . . . . . . . . .
. . .
 30
Using the Calling-Frequency Memory . . . . . . . . . . . . .
. . .
 30
Checking Priority Channel 1 . . . . . . . . . . . . . . . .
. . . . . . .
 30
Scanning Memory Channels . . . . . . . . . . . . . . . . . .
. . . . .
 31
Clearing a Memory Channel . . . . . . . . . . . . . . . . .
. . . . . .
 31
Enabling/Disabling Scanning for Memory Channels . . . . .
 31
Using DTMF and Subaudible Tones . . . . . . . . . . . . . .
. . . .
 32
Storing a DTMF Sequence . . . . . . . . . . . . . . . . . .
. . . . . . .
 32
Transmitting a DTMF Sequence . . . . . . . . . . . . . . . .
. . . .
 32
Using DTMF Page . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
 33
Using Group Calling . . . . . . . . . . . . . . . . . . . .
. . . . . .
 33
Using Auto-Reply . . . . . . . . . . . . . . . . . . . . . .
. . . . . .
 34
Using DTMF Auto Send . . . . . . . . . . . . . . . . . . . .
. . . . . . .
 35
Using Subaudible Tones . . . . . . . . . . . . . . . . . . .
. . . . . . .
 36
Valid Subaudible Tones . . . . . . . . . . . . . . . . . . .
. . . .
 36
Setting the Subaudible Tones . . . . . . . . . . . . . . . .
. . .
 36
Activating Subaudible Tone Transmit and Squelch . . .
 37
Setting the DTMF Page and Subaudible Tone Alert . . . . . .
 37
Using the Menu . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . 38
Troubleshooting . . . . . . . . . . . . . . . . . .
 . . . . . . . . . . . . . .
 40
Error Codes . . . . . . . . . . . . . . . . . . . .
 . . . . . . . . . . . . . . .
 40
Common Problems and Solutions . . . .
 . . . . . . . . . . . . . . .
 40
Replacing the Fuse . . . . . . . . . . . . . . .
 . . . . . . . . . . . . . . .
 41
Specifications . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . 42
Schematics . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . 44
RadioShack-8930-Manual-Page-1-Picture


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