Sommerkamp TS-340 DX Owner'S Manual Download Page 7

S/RF  METER

The  TS-340  DX  is equipped  with  a  large,  easy-to-read  combination  meter.  In  the  receive  position,  the 

meter  reads  the  level  of  the  incoming  signais.  In  the  transmit  position,  it  indicates  relative  power 

output.

NOTE: 

1.  IN  THE  AM  MODE,  THE  METER  W ILL  READ  POWER  AT  A L L  TIMES WHEN THE

TRANSMIT  BUTTON  IS  DEPRESSED.  ON  SSB,  HOWEVER,  IT W ILL  ONLY  INDICATE 

RF  OUTPUT  POWER  WHEN  YOU  MODULATE  THE SIGNAL.

2.  IN  THE  SSB  MODE,  NO  METER  CAN  FOLLOW  THE  RAPID  VOICE  PEAK  POWER 
ATTAIN ED .  THEREFORE,  WHILE  THE  TRANSMITTER  IS  DEVELOPING  MUCH 

MORE  POWER  THAN  ON  AM,  THIS  AD D ITIO N AL  POWER  W ILL  NOT  BE  FULLY 

REFLECTED  ON  THE  METER.

M O DULATIO N/RF  METER  SWITCH

Allows  either  relative  RF  (Radio  frequency)  output  or  modulation  output  to  be  monitored  while 
transmitting.

N B/AN L  (NOISE  BLANKER/AUTO M ATIC  NOISE  LIMITER)  SWITCH

The  TS-340  DX  is  equipped  with  both  noise  blanker  and  A N L  circuits  for  maximum  noise 
suppression  and  elear réception.

DC  CONNECTOR

This  connector  is  used  to  supply  power  to your TS-340 DX.  The  plug-in  feature  allows easy  removal 
fo r security  purposes or fo r  moving the  transceiver  to another vehicle.

KEY  JACK  FOR  CW

For  attaching  optional  CW  (Morse  key)  device, simply  pług  it  into  this jack.

E X T E R N A L SPEAKER  JACK

You  may add  any  8-16  ohm external  speaker.  Simply  pług your accessory  speaker into  the jack.

NOTE: 

INSERTING  THE  3.5MM  PLUG  W ILL  AU TO M ATIC ALLY  DISCONNECT  THE  IN­

TERNALSPEAKER.

ANTENNA CONNECTOR

A   standard  SO-239  type connector is supplied  fo r attaching  either  mobile or base antennas. 

MICROPHONE

The  receiver  and  transmitter  are  controlled  by  the  press-to-talk  switch  on  the  microphone.  To 
transmit,  simply  press  in  this  switch.  Release  the  switch  to  receive.  When  transmitting,  hold  the 

microphone  3  to  4  inches from   your  mouth  and  speak clearly  at normal  voice  levels.  The  TS-340  DX 

uses a  newly  designed  high  level  output  microphone.  It delivers  maximum  talk  power.

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Summary of Contents for TS-340 DX

Page 1: ...s n m m E R M R m p Model TS 340 DX OWNERS MANUAL 4 0 4 0 CHANNEL MOBILE AM SSB TRANSCEIVER...

Page 2: ...for shipment Open the carton carefully to avoid damage Examine the unit for any visible damage If the transceiver has been damaged in shipment save the box and packing material and notify the transpo...

Page 3: ...e Control Squelch Channel Selector Clarifier Channel Indicator SWR CAL RF Gain Mic Gain Mode Switch Model Light High Low Band Switch NB ANL Switch CAL Switch MOD RF Meter Switch CW Switch CH 9 Priorit...

Page 4: ...OR The channel selector switch is used to select the channel frequency It automatically adjusts both the transmitter and receiver frequencies and displays your s lection in bold L E D Light Emitting D...

Page 5: ...e sideband signal In single sideband transmission the carrier and one sideband are removed from the transmitted signal Thus only one sideband is transmitted LSB transmission is the transmission of the...

Page 6: ...lk bar 3 Set the function switch to the top SWR position 4 Press the microphone push to talk bar and read the SWR measurement on the bottom meter scale The SWR scale is calibrated at 1 1 5 2 and 3 If...

Page 7: ...oise blanker and ANL circuits for maximum noise suppression and elear r ception DC CONNECTOR This connector is used to supply power to your TS 340 DX The plug in feature allows easy removal for securi...

Page 8: ...THOUT AN ADEQUATE ANTENNA SYSTEM OR LOAD ANTENNA SWR SHOULD NOT EXCEED 3 1 FAILURE TO FOLLOW THESE RECOMEN DATIONS COULD RESULT IN DAMAGE TO THE RE OUTPUT TRAN SISTOR 1 Make sure the proper connection...

Page 9: ...etal case of the transceiver should be grounded A standard antenna connector type SO 239 is provided on the transceiver for easy connection to a standard PL 259 cable termination MOBILE INSTALLATION A...

Page 10: ...M OUNTING IN S T R U C T IO N S WASHER x5 MOUNTING BRACKET 9...

Page 11: ...0 26 965 27 405MHz High Band 1 40 27 665 28 105MHz AM Lower Sideband and Upper Sideband Volume Control with power on off switch Variable Squelch Control Mike Gain Control RF Gain Control SWR CAL Contr...

Page 12: ...the SSG is turned off at the normal output 10 Set the Mode Switch to USB Volume Control at maximum Squelch at minimum and Clarifier in the center Tune off the modulation of the SSG and remove the fre...

Page 13: ...ansfers the power from your transceiver to the antenna The output of your transceiver is 50 52 ohms Your antenna is designed to be 50 52 ohms For this reason RG58 U or RG8 U cable is used because it a...

Page 14: ...and 1 8 to 1 4 inch thereafter until the LOWEST reading is obtained on the RF meter That s righ t THE LOWEST READING Your RF output meter is a voltage sensing device It is installed in the RF output...

Page 15: ...six months or so re check the SWR Car washes rod grime and Chemicals can eftect the mechanical connections of an antenna and corrode them This corrosion can cause poor electircal connections and lead...

Page 16: ...trol 6 1 2 Volt 7 transm it Teceive Switching Case ground Alv ays operate f he transceiver willi the shortening plug inserted in the accessory jack or with the following extcnal connections I Headset...

Page 17: ...CIRCUIT DIAGRAM...

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