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VOLUME

Rotate  the  Volume  control  clockwise  past  the 

"click" to turn the TX4200 on. Adjust the Volume 

control for a comfortable listening level.

(If no sound is heard, adjust the Squelch control 

fully  counter-clockwise,  then  readjust  the 

Volume control).

BACkLIGHTING

The TX4200 features built-in backlighting of the 

Liquid  Crystal  Display  (LCD)  and  all  controls. 

The backlighting can  be  toggled bright  or  dim 

by momentarily pressing the Volume knob.

When  the  radio  is  turned  off,  the  backlighting 

setting is retained and will be restored when the 

radio is turned on again.

SQUELCH

The  Squelch  control  is  used  to  eliminate  any 

annoying background noise when there are no 

signals  present.  To  adjust  the  Squelch,  first 

rotate the Squelch fully counter-clockwise until 

the background noise  is  heard  and  the  BUSY 

indicator  on  the  LCD  is  displayed.  Then 

advance the Squelch control clockwise until the 

noise just disappears and the BUSY indicator is 

extinguished. At  this  point  the  receiver  will 

remain  quiet  under  "no  signal"  conditions,  but 

an incoming signal will overcome the Squelch 

action  and  be  heard  in  the  speaker. As  the 

control  is  further  advanced  clockwise,  the 

squelch  action  is  progressively  increased  and 

stronger  incoming  signals  are  needed  to 

overcome it. To receive extremely weak signals 

or  to  disable  the  squelch,  simply  turn  the 

Squelch control fully counter-clockwise.

CHANNEL

Select  the  required  channel  by  rotating  the 

Channel  selector  switch clockwise or  counter-

clockwise.  Rotating  clockwise  selects  higher 

channels  and  counter-clockwise  selects  lower 

channels. The selected channel is displayed on 

the LCD.

SIGNAL STRENGTH METER

The TX4200 has a digital signal strength meter 

built into the LCD. When in the normal receive 

mode  (scan  not  selected),  the  received  signal 

strength  is  displayed  as  numbers  from  0  to  9 

(with 9 being the strongest) on the bottom right 

of the LCD.

DUPLEx

Duplex operation allows the TX4200 to transmit 

on a different channel to that which it receives. 

This  allows  operation  through  any  repeater 

stations in your area. Repeaters automatically 

re-transmit  your  signal  providing  greatly 

increased range. 

(See  section  on  repeaters  on 

page 30).

The Duplex function operates only on channels 

1-8. When Duplex is selected on one of these 

channels, the TX4200 receives on the selected 

channel  but  actually  transmits  30  channels 

higher.

e.g.

  Channel Selected     1   2   3   4   5   6   7   8
  Receive Channel     1   2   3   4   5   6   7   8
  Transmit Channel    31 32 33 34 35 36 37 38

The TX4200 allows you to programme Duplex 

7

13.8 V DC

GME ELECTROPHONE   MODEL TX4200

SERIAL  No.

MANUFACTURED BY:

STANDARD COMMUNICATIONS Pty. Ltd.

6 Frank  St., GLADESVILLE N.S.W.

COMPLIES WITH SMAS 250

APPR. No.  2503017

SELCALL  IDENT

ANTENNA

 ALARM

EXT SPKR

Extension

Speaker

Socket

External

Power

Lead

Your TX4200

Selcall Ident Code

External Antenna

flying lead

Alarm

Input/Output

Содержание TX4200 Series

Страница 1: ...TX4200 SERIES UHF TRANSCEIVER Complies with SMAS 250 STANDARD COMMUNICATIONS PTY LTD INSTRUCTION MANUAL...

Страница 2: ...nnels set for Quiet Operation Operating in the Quiet Mode Deactivating the Quiet Mode Receiving a Signal in the Quiet Mode Return the Call Scanning in the Quiet Mode Important Tips on Scanning in the...

Страница 3: ...z 6dB per octave pre emphasis microphone pre emphasis Within 5 kHz 20dB limiting 300 Hz 3 kHz Hum and Noise Modulation Distortion Microphone Microphone Input Sensitivity Spurious Emissions Current Con...

Страница 4: ...nd noise suddenly disappears This is known as the threshold At this point the radio is quiet when there are no signals being received but any incoming signals will overcome the squelch and be heard in...

Страница 5: ...and scanning of QUIET and OPEN channel combinations with audible alarm when called Three SELCALL memories User programmable storage of three frequently called SELCALL Idents Open Scan and Group Scan...

Страница 6: ...s in the Scan memory Displays the selected channel number Indicates the TX4200 is transmitting OS mode Displays the last selected channel GS mode Displays the PRIORITY channel number Speaker BASIC FUN...

Страница 7: ...ply turn the Squelch control fully counter clockwise Channel Select the required channel by rotating the Channel selector switch clockwise or counter clockwise Rotating clockwise selects higher channe...

Страница 8: ...Recall the Priority Channel Press the Channel selector knob at any time The radio will immediately jump to the Priority channel If the radio was scanning the scan function will be cancelled To Change...

Страница 9: ...ep is heard M will appear in the display indicating the selected channel is now in the memory Open Scan OS Mode Open Scan mode allows up to 40 channels to be scanned in an ascending sequence Scanning...

Страница 10: ...GS Mode Group Scan mode allows you to transmit and receive normally on your Priority channel but between breaks in the conversation the radio can scan and listen to several other channels The receiver...

Страница 11: ...ve for 5 seconds the radio will resume scanning To manually hold a busy GS channel press SCAN The radio will exit the Scan mode and will remain on the busy GS channel NOTE You will no longer be monito...

Страница 12: ...all signal consists of 5 short tones transmitted in a sequence There are 10 different tones to choose from numbered from 0 to 9 By combining any 5 of these tones in a sequence a code is created The co...

Страница 13: ...et and which channels will remain Open open channels are those where all signals will be heard This means that as you change channels you don t have to turn the Quiet function on or off to suit specif...

Страница 14: ...gently for about 10 seconds It will then slow to about 1 beep every 3 seconds and will continue to beep indefinitely until you reset it see the section on dealer programmable options in the back of th...

Страница 15: ...tone standard This means that is compatible with the 5 tone Selcall systems used in other radios The only difference is that only the TX4200 and the earlier model TX4000 has the ability to transmit an...

Страница 16: ...TX indicator will appear and the Ident will be transmitted You don t need to continue to hold the CALL button down once the TX indicator appears The TX4200 will keep transmitting by itself until the c...

Страница 17: ...o all signals unless your Selcall Ident is received Channels NOT marked with Q will remain as open channels and will allow ALL signals to be heard even though the QUIET mode is active When your TX4200...

Страница 18: ...arked with Q If a signal containing your Selcall Ident is received on any channel OPEN or QUIET the QUIET mode will be cancelled and the alarm will beep to alert you to the call In addition the caller...

Страница 19: ...Selcall transmission starts This means that by the time the receiver gets around to scanning the correct channel some of the Selcall Ident tones may be missed If this happens the Selcall will not be r...

Страница 20: ...to leave your radio unattended but need to be informed immediately if a call specifically intended for you is received The PAGE function allows your TX4200 to automatically call another UHF receiver w...

Страница 21: ...d digit of the 5 digit Ident is now flashing This flashing digit indicates the digit to be programmed 2 Select the number required in the flashing digit position by rotating the channel selector switc...

Страница 22: ...lled and the caller s Ident will be displayed If you wish to return the call Briefly press the CALL button The TX4200 will enter the CALL TO mode and the caller s Ident will automatically be inserted...

Страница 23: ...ns where you may not be within listening range of your TX4200 s internal speaker Example 1 Your TX4200 is unattended inside an office and the internal speaker alarm cannot be heard in the workshop or...

Страница 24: ...e Alarm Input function takes priority over all other functions Whenever an Alarm input is detected the TX4200 gives priority to transmitting the Alarm signal If your TX4200 has been turned OFF with th...

Страница 25: ...8 Enabled 1XXXX None Enabled Enabled Disabled Enabled Enabled Disabled Enabled Disabled None Enabled Disabled 1XXXX Enabled Ch 23 Enabled Disabled Yes Yes Yes Yes No No Yes No No No No No No No No Ye...

Страница 26: ...heard after 5 seconds the radio will resume scanning If a signal appears on any channel group or Priority and the receiver locks onto it you can pick up the microphone and talk on that channel If the...

Страница 27: ...Radios The TX4200 is factory set to allow you to send and receive Group Calls to up to 10 radios If there are more than 10 radios in your fleet and you need to Group Call them your dealer can reprogr...

Страница 28: ...setting is normally disabled radio does NOT re enter QUIET mode after 10 seconds and the Selcall alarm beeps continuously If you change this setting to enabled your radio will open leave the QUIET mo...

Страница 29: ...the front panel then press the cover into place until it clicks To remove the microphone plug First remove the microphone socket cover as described above Then lift the tab on the mic plug upwards tow...

Страница 30: ...d in a prominent location The repeater is designed to receive signals on a designated channel and re transmit them on another channel Repeaters are usually located on hills mountains or tall buildings...

Страница 31: ...ory The QUIET mode is set Open Scan mode is selected Group Scan mode is selected The radio is transmitting The radio is ready to send the displayed Selcall Ident The radio has just received a Selcall...

Страница 32: ...e proof of purchase date i e receipt docket credit card slip etc and a full description of the defect to the Dealer from whom the unit was purchased All freight charges incurred for transportation by...

Страница 33: ......

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