Sommerkamp TS-680DX Manual de usuario

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CITIZENS BAND TRANSCEIVER

INSTRUCTION MANUAL

M ODEL: TS-BBO DX

SPECIFICATIONS for TS-680DX

Semiconductors:

Transmitter System:

Frequency:

Output Power:

Band Width:

Antenna impédance:

Recei er System:

Sensiti ity:

Intermediate Frequency:

Recei er Selecti ity:

Squelch Sensiti ity:

Audio Output Power:

Power Source:

Microphone:

Speaker:

Sïze:

Weight: .

Accessories:

4 Integrated Circuits,

2 FET, 22 Transistors.

1 SCR, 23 Silicon diode.

2 Varicap, 5 Zener diode.

Synthesized PLL controlled.

Collector modulation AM.

80 Channels on 27 MHz.

10 Watts at 13.8V DC.

8 KHz. (max.)

50-52 ohms.

Double con ersion superheterodyne,

PLL controlled.

I/*V or better for lOOmW output,

10 dB signal to noise ratio.

Ist I. F. 10.7MHz, 2nd I. F. 455KHz.

40 dB down at 10 KHz. or more.

1/^V.

2 watts in 10% djstortion.

11—16V D. C. Negati e Ground.

Fuse 5A.

Dynamic type with press-talk switch.

Impédance 500 ohm.

Dynamic type, Voice coil Impédance 8 ohm.

156X58X205 mm.

2.3 kg.

Mounting bracket, Mounting hardware,

power cord.

SOMMERKAMP ELECTRONIC SAS

CH-69Ü3 LUGANO, RO. BOX 1 6

SWITZERLAND

TEL. 91 688543 TELEX'- 931-4

CONTROL LOCATIONS:

EXT. SP. JACK

MOBILE

BRACKET

POWER-SW/VOLUME

KNOB

SQUELCH/ANL-OFF

KNOB

RF POWER & "S' METER

DELTA-TUNE

CHANNEL SELECTOR KNOB—1

PRESS. TO-TALK BUTTON

MICROPHONE

'-MICROPHONE JACK

-VSWR. LIGHT

TRANSMITTING. LIGHT

(PUSH. CALL. BUTTON)

PACKING LIST

Beside this manuał, the carton shall contain the following items:

1. Transcei er TS-680DX

1. Mounting bracket.

4. Screw for Mounting bracket.

1. Microphone hanger.

1. Microphone.

- 2

GENERAL DESCP^TION

Your SOMMERKAMP TS-680DX transcei er has been désignée) for continous

hea y duty mobile and base Station application.

It can be operated with a microphone and internal speaker or handset, speaker/

microphone combination, telephoneset incorporating automatic oice operated

transmit/recei e switching, externat sélecti e calling with automatic answer

back and many more.

GENERAL

The transcei er is designed to operate from 13.8 Volt DC powersupply as a

base or mobile station. It's straght forward 80 channel capability allows it to

operate on any channel within 26.965.and 27.755 MHz.

RECEIVER SECTION

The recei er section is designed to recei e amplitude modulated (AM/A3)

signais in the 26.965 to 27.755 MHZ. (11 meter) citizens band .

The unique combination of low noise Field Effect Transistor (FET), double

con ersion, a combination of mechanical ceramic, and L/C filters, fully auto

matic noise limiter (ANL) and a hifi quality speaker amplifier will gi e you

exceptional réception quality in this fine piece of equipment.

In addition, the abo e combination of the latest technology pro ides you with

a sensiti ity and unwanted signal rejection and noise suppression a ailable

pre iously only in space and military communication equipment.

The power supply of the recei er RF. IF. and oscillator section is stabilized

by an extreme Sharp cut-off Zener diode to obtain the high sensiti ity and

unwanted signal rejection. The fully automatic sériés gâte noise limiter, which

irtually cuts off the audio output during ignition noise puises, is defeatable

to make e en the weakest signal audible which otherwise would be eut off

by the threshold le el of the ANL switching diode.

The high squelch sensiti ity is achie ed by using a seperate squelch detector

and switching circuit with a carefully balanced hystérésis. The trans-

formerless hifi quality audio power amplifier will dri e any load between 8

ohms and indefininite such as internai speaker or external speaker/microphone

or headset combinations ha ing the abo e impédances.

The meter indicates the field strength during réception of a signal.

3

TRANSMITTER &. MOD LATOR SECTION:

The trasmitter section is désignée) for continous hea y duty transmissiW. of

amplitude modulated (AM/A3) signais in the 26.965 to 27.755 MH2. (11 meter)

citizens band.

The transmitter consists of a Phase Locked Loop circuit and an one-crystal

controlled oscillator, of which output is synthesized in a dass B mixer, followd

by a double tuned filter,dass ABI buffers, and a highly efficient collector-

modulated dass C dri er and power output stage, coupled by séries and pi-

matching filters to the antenna jack.

The modulator consists of an input audio filter, ALC amplifier integrated pre-

and power amplifier and modulation transformer. This gi es you the lowest

possible modulation distortion and up to 100% modulation.

The input is designed for 500 ohm dynamie microphone or 32 ohm speaker/

microphone combination with a 1K ohm resistor in sériés.

RECEIVE/TRANSMIT SWITCHING

The recei e/transmit switching is done by a single pole, single throw switch

in the microphone and a combination of NPN and PNP switching transistors.

METER

The combination meter pro ides you with the following functions:

During recei e mode

................

it indicates the incoming signal strength.

During transmit mode

............

it indicates the output power.

MOBILE INSTALLATION

Mounting bracket and screws are supplied for mounting the transcei er under-

neath the dashboard. Microphone hanger and screws are also supplied. For

electrical connection, first make sure that the transcei er is turned off.

Connect the red wire to the ACC terminal of the ignition switch or + terminal

of battery and ground the black wire to the chassis of the rehicle. The black

wire should be grounded as short as possible to minimize noise interférence.

This transcei er is designed for use with the negati e ground system.

4

Connect the antenna pług to the antenna jack with an SWR-Meter inserted

into the antenna cable.

Connect the microphone to the microphone jack.

Switch the transcei er ON.

The recei ing, meter and the channel lamp, shall light up.

Turn the squelch control to min. (ANL OFF)

Turę the Volume control to max. Until you hear a rushing sound from the

speaker.

Swith the channel selector to CH. 1.

Push the transmit button on the microphone and check with the SWR-Meter

Immediately the SWR of your antenna.

The SWR must be less than 1 to 2. Do this within 3 seconds, because if the

SWR is higher than 1 to 2 it is ery likely that the transmitting transistors

will be damaged if you operate the transmitter too long with a antenna

ha ing a too high SWR. Also read carefully the recommendations on

antennas.

NOTE: In case the SWR is too high, the Automatic protection circuit will

switch off the transmitter.

If the SWR is less than 1 to 2 continue Checkout, if it is more than 1 to 2

repair or replace your antenna.

5

Check that the meter needle is near the red mark during transmitting. Talk

into the microphone. The meter needle shall mo e a little. Release the trans

mit button and switch the channel selector to Channel 1,2 etc. until you

recei e a station.

Wait until this station stops to transmit and turn the Squelch control slowly

to max. Until the background noise just disappears. When the station Starts

to transmit again, you will hear this station, but you will not hear the back

-ground noise during non transmitting periods.

OPERATING INSTR CTONS

The transcei er is ready to operate when it is installed with an antenna

properly connected. Note that the communication range differs depending upon

the en ironment where the transcei er is operated.

j»You may reach 30 or 40 kilometers where no obstacle exists, but the range

may be limited to 5 or 6 kilometers in cities where many_ high buildings

disturb the communication.

1) Turn the set on by Switching the LOW CH-OFF-HIGH CH. snap switch to

the desired channel range and the channel dial will be lighted. Turn

the olume control clockwise to increase the audio sound. Note that the *

olume control. knob is only for adjusting the audio olume, not to in

crease the transmitting power.

2) Set the-DELTA-TUNE for best réception.

3) Turn the squelch control clockwise until incoming noise is efiminated. Do

not turn it excessi ely as the sensiti ity may be reduced.

4) Turn the squelch control counter-clockwise to switch off the ANL

(Automatic Noise Limiter).

5) Turn the channel selector knob to the desired channel.

6) For. transmitting, press the button on the microphone and speak into it

normally. Release the button for recei ing.

METER

The meter reading indicates the signal strength at recei ing, and functions as

an output indicator at transmitting, and the meter pointer should be within

the red zone under the normal conditions.

CIRC IT PROTECTION INDICATION LAMP

The lamp is on when the antenna is mismatched, and the transmitting circuit

will be eut off.

6 —

LIST OF CHANNEL FREQ ENCIES

N i

X

Щ

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LO n-CO CT» OpH CM CO

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LO CO N . no CT» OCM

XLD Ю Ю Ю CO CO CO CO CO CO CO CO CD N N N NNN

ON i N i N K KKKKN K N i N i N NNN i N N i Ni N

CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM

X

O

X

*

NJ

X

sЮЮLO LO O Ю LO LO LO LO Ю Ю Ю LO LO LO Ю LO Ю LO

'— •" LO N . 00 o> Or—ł CM CO LO CO N . 00 CT» O CM 00 3LO

rH rH H rH CM CM CM CM CM CM CM CM CM CM CO CT) CO CO CO

X

ON i K N NNNN K KKNi N i N N N N i NNNN i

CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM

$

O

_J

d

Z

pHCM CO *3* LO CO N» 00 m O I-H CM ro SЮCO N no en §

XCM CM CM CM CM CM CM CM CM CO CO CO CT) CT) CO CO CO CO

O

N i

X

s

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f> n Ю L O I O LO LO L O LO LO LO LO LO Ю LO Ю LO LO ЮLO

Xсо

CO N .

CO 00

CO en

CO §«3* CM

*3* CO

"З' 5Ю

M- CO N .

<3* 3en

'З - 8rH

LO CM

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ЮsLO

LO

ON i N i N N N NN» KSNi SN i N N - N i N i NNN i N

CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM

X

O

X

NJ

X

2«n 1Л 1П LO IO Ю LO LO Ю LO LO LO Ю LO Ю LO LO LO LO

X

LO

en N .

CT» 00

СП 2>

O) 8 " o CM

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ss

8

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N .

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rH rH

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OCO CO CO CO N N KK|N N i N i N i N i NN i N i NNN N

CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM CM

г

4

O

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d

Z

iH CM CO LD CO N00 en OrH CM CO LO CO N00 en O

X

rH -H rH rH rH rH rH rH rH rH CM

O

7

. .JROPHONE JACK

The -pir. DIN standard accessory iack

1. Internsi speaker

2. AF. ou: for sélective cal!.

3. Audio output 'Z S ohrr-10K ohnv

4. Microphone mput Z 600- 10K ohm'

has the following internai connections:

5. N C

6. -A 12V for VOX unit etc.

. Transm it/Receive switching.

Case = ground

inserted in the microphone

Aiways ooerate the transceiver with the microphone plug

iack. or w ith the following external connections:

m-cwo** ox

2 20 j I ^ 1 VOX I CONTRO-

600- ÏO*'. ohrr.

Microsnone

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COMPLETE PARTS LAYOUT