Sommerkamp TS- 5612 User manual

CITIZENS BAND
TRANSCEIVER
®
MODEL
TS- 561 2
INSTRUCTION MANUAL

CONTROL LOCATIONS:
CALL OPERATE
STAND BY SWITCH
OD or RUBBER ANTENNA
BATTERY , - ,
COMPARTMENT Ы
LID
PACKING LIST:
Beside this manuał, the ca ton shall contain the following items:
1 T ansceive TS-5612
1 Ca ying case with shoulde st ap
1 Ea phone case with ea phone
2 pcs. dummy batte ies inside the batte ie case
2

GENERAL:
You SOMMERKAMP TS-5612 t ansceive has been designed fo continous heavy
duty po table application. The t ansceive is designed to ope ate with inte nal d y
cells o echa geable nickel-cadmium batte ies such as N500AA set with the
12360 cha ge .
To p event excesive batte y d ain, this t ansceive has a stand-by switch in
combination with the ope ate and call switch, which by a timing ci cuit and a
switching t ansisto switches the eceive on fo 2 seconds and off fo 10
seconds. This device extends the batte y life 6 times longe compa ed with
continous squelched stand-by ope ation. It is necessa y. howeve , fo a calling
station to call by minimum 10-15 seconds befo e eceiption and contact is
possible.
RECEIVER SECTION.
The eceive section is designed to eceive amplitude moduiated (AM/A3) signais
in the 26.965 to 27.275MHz. (11 mete ) citizens band. The unique combination
of low noise Field Effect T ansisto s (FET), single conve sion, a combination of
mechanical ce amic, and L/C filte s, fully automatic noise limite and a hifi
quality speake amplifie will give you exceptional éception quality in this fine
piece of equipment.
In addition, the above combination of the latest technology p ovides you with a
sensitivity and unwanted signal ejection and noise supp ession available p eviously
only in space and milita y communication equipment.
The powe supply of the eceive section is stabilized by an ext eme sha p cut-
off Zene diode cont olled sé iés stabilize to obtain the high sensitivity and
unwanted signal ejection. The fully automatic sé iés gâte noise limite , which
vi tually cuts off the audio output du ing ignition noise puises, is defeatable to
make even the weakest signal audible which othe wise would be eut off by the
th eshold level of the ANL switching diode.
The high squelch sensitivity is achieved by using a sepe ate squelch detecto and
switching ci cuit with a ca efully balanced hysté ésis. The t ansfo me less hifi
quality audio powe amplifie will d ive any load between 32 ohms and indefininite
such as inte nai speake /mic ophone combination o exte nal speake /mic ophone
o headset combinations having the above impédances.
The mete indicates the field st ength du ing éception of a signal, and without
signal the batte y condition.
- 3

TRANSMITTER &. MODULATOR SECTION:
The t ansmitte section is désignée! fo continous heavy duty t ansmission of
amplitude modulated (AM/A3) signais on any of the 6 Channels in the 26.965 to
27.275MHz. (11 mete ) citizens band.
The modulato consists of an active audio filte type speech p ocesso , integ ated
p e-and powe amplifie and modulation t ansfo me . This gives you the lowest
possible modulation disto tion and up to 100% modulation. The input is designed
fo the 32 ohm speake /mic ophone combination.
RECEIVE/TRANSM1T SWITCHING:
The eceive/t ansmit Switching is done by a single pole, single th ow mic o
switch with a life time of about 5 million ope ations and a combination of NPN
and PNP Switching t ansisto s which also function in the eceive mode as sé iés
voltage stabilize . Fo emote Switching, a pa allel contact is p ovided at the
accesso y jack.
METER:
The combination mete p ovides you with the following functions:
Dü ing eceive mode ..... it indicates the incoming signal st ength, and without
incoming signais the batte y condition.
Dü ing t ansmit mode---it indicates the output powe .
STAND-BY:
The stand-by featu e is inco po ated to educe batte y d ain du ing monito ing of
a channel if no continous communication is necessa y.
POWER SUPPLY:
This t ansceive is designed to ope ate with a nominal 12V DC powe supply
such as the inte nal d y cells o nickel-cadmium echa geable batte ies.
4

UNPACK1NG AND CHECKOUT
Unpack the ca ton ca efully and check fo exte io damages.
Check that the volume cont ol is in the OFF position, the squelch cont ol in the
ANL-OFF position and the standby-ope ate-call switch in OPERATE position.
p ess the dent of the batte y compa tment iid and puii it out towa d the bottom.
Lift out the batte y holde and inse t 8 d y celis into the holde as indicated.
© to ©, © to © pole. Leave the 2 dummy batte ies in the holde as they a e.
If you use echa geable batte ies, inse t 10 pièces of them in the same manne
as above but emove the dummy batte ies.
Snap the batte y holde onto the snap connecto p ovided and einse t the holde
into the compa tment.
Replace the compa tment lid by inse ting it st aight f om the bottom up until
it snaps in ightly.
Then switch the t ansceive ON by otating the volume cont ol clockwise and
check that the mete needle moves into the ed field. If the mete needle does
not move, switch OFF immediately and check if the standby-ope ate-call switch
is in the OPERATE position. If this is the case, open the batte y compa tment
to emove the batte y holde to ensu e that the batte ies a e co ectly in-se ted.
Now tu n the volume cont ol until noise is hea d f om the speake . Then extend
the od antenna to the füll length.
5 —

Switch the standby-ope ate-cali switch to STANDBY. The noise f om the speake
shall cease and the mete needle shali move to the black field.
Within 10-15 seconds, the noise f om the speake shall be hea d again and the
mete needle moves to the ed field. Wait fo this cycle to epeat itself seve al
times. then switch to OPERATE.
Rotate the channel switch step by step f om Channel 4 to 15 and check that
some noise and/o signal is hea d on each channel.
Push the push-to-talk (PTT) switch and obse ve the mete needle. It shall move
into the ed field. Now whistle into the speake /mic ophone. The needle shall
move a little. The same applies while p essing and eleasing the call switch
between ope ate and call.
Repeat this check on each channel. This complétés the Checkout.
OPERATION
Extend the od antenna competely and switch the t ansceive ON by otating the
volume cont ol clockwise.
Rotate the channel switch to the desi ed channel.
Adjust the volume cont ol to a comfo table level.
P ess the PTT switch and talk with a no mal voice into the speake /mic ophone
f om a distance of 5-10 cm. Afte completing you t ansmission, e lease the
PTT switch, and the t ansceive is eady fo éception. Always emembe that
you opposite pa ty cannot hea you while he is t ansmitting.
Adjust the squelch cont ol so that the backg ound noise just disappea s du ing
non-t ansmitting pe iods of you opposite pa ty.
Fo stand-by ope ation, switch the STANDBY-OPERATE-CALLswitch to STANDBY.
Remembe that the t ansceive is 10 seconds OFF and 2 seconds ON and that
you opposite pa ty has to call fo at least 10-15 seconds so that you can
eceive the call. Call eithe by voice o by the built-in tone cail fo this du ation.
To answe the eceived call, switch to OPERATE, push the PTT switch and
talk into the speake /mic ophone.
To eceive weak signais, tu n the squelch cont ol fuily counte -clockwise so that
the ANL is switched OFF.
To switch the t ansceive OFF, tu n the volume cont ol fuily counte -clockwise
until a click is hea d and the mete needle moves into the black field.
Impo tant:
If you will not ope ate the t ansceive fo a long time, emove the batte ies
f om the equipment so that they will not co ode and damage the t ansceive .
6

ACCESSORI ES
To install N500AA echa geable nickel-cadmium batte ies,follow the inst uctions
unde the Chapte UNPACKING AND CHECKOUT of this manuał.
Cha ge the N500AA nickel-cadmium batte ies by piugging the 1236 cha ge into
the cha ge jack. Cha ge fo 14 hou s. It is not possible to ope ate the
t ansceive . du ing cha ging.
7

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BLOCK DIAGRAM
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BATTERY
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DRIVER
TR-6
DIODE TR-5
TX RF. RF. FAINAL
AMP
TR-13
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TR-7 TR-8
TR-11 TR-12 2Ê 5
+ B MOD
TIMER
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MODULATION
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W1RING LAYOUT UPPER VIEW
10

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12

PARTS LIST fo TS-5612
DESIGNATION PARTS NAME PARTS NO.
MP-5601 Cabinet F ont 492023
MP-5602 Cabinet Top 493037
MP-5603 Cabinet Back 492021
MP-5604 Cabinet Cove fo ВАТТ. 493039
MP-5605 Speake G ill 493038
MP-5606 Bushing fo Rod Antenna 494205
MP-5607 Knob fo VOL/SQU Cont ol 494199
MP-5608 P. T. T. Button Assembiy 494200
MP-5609 Cabinet Bottom Plate 494198
MP-5610 Mounting B acket fo Rod Antenna 494202
MP-5612 F ame fo P. С. B. 494196
MP-5613 Heatsink fo 2SC1237 494215
MP-5614 Mounting B acket fo Mic oswitch 494216
MP-209 Mounting B acket fo Speake 474009
MP-5615 B and plate 494212
MP-5616 P. T. T. Button Plate 494211
MP-5617 VOL/SQU Plate 494208
MP-5617 Toggle Switch plate 494210
MP-5619 Back plate 494213
MP-5621 Channel Indicato plate 494231
MP-5622 Batte y Case Holde 494207
MP-5623 Suppo te fo P. С. B. 494227
MP-5624 Speake Net 494229
MP-5625 Rod Antenna Cove 494219
. MP-5626 Knob fo Channel Selecto 494226
PP-5601 Ca ying Case CC-5632
PP-5612IM Inst uction Manual IM-5606
PP-5612G Gift Box G В-5606
TRI FET 3SK40
TR7, 15 T ansisto 2SA854
TR14 T ansisto 2SA496-Y
TR8, 16 T ansisto 2SC1741-Q
TR5, 6 T ansisto 2S С1648-LN-S
TR9 T ansisto 2SC1641-R
TR2,3,4,ЮД1 T ansisto 2SC1739
TR13 T ansisto 2SC1678
TR12 T ansisto 2SC496-0
- 13 -

PARTS LIST fo T S -5612
DESIGNATION PARTS NAME PARTS NO.
IC-1 IC. RC555DM
IC-2 IC. BA-501
01,2,3,4,5,6,17 Silicon Diode IS2473-VE
D8, 9 Silicon Diode IN4002
D il Va isto Diode M8513A
D12 Zene Diode WZ11V
D10 Ge manium Diode 1N60
D7 Silicon Diode 1S1555
MF Ce amic Filte CFU-455H
VR2 Va iable Resisto (Volume) 50K ohm 13-50KAS
VR1 Va iable Resisto (Squelch) 10K ohm 13-10BBS
SW3 Mic o Switch (P. T. T.) SS-5
SW5 Toggle Switch 8A2051
SW1 Rota y Switch M26S
EP-301 C ystal Socket XS-1P
SP Speake 57 % 32 ohm IMP. 57P-15-7
J4 T i Jack C-G-0112-02
ТЭ Modulation T ansfo me T- 5606
MMete 21A002
ANT Rod Antenna A-32
E P- 500 Batte y Case UM-3X10 BC3-10
LI ANT. Loading Coil 011-916
L2 TX Final n Matching Coil 010-916
L3 TX Final /т Matching Coil 010-916
L4 TX Final Tuning Coil 011-912
L5 RX OSC. Filte Coil 011-917
TI RX Tuning Coil 4Z-1372
T2, 7 RX RF OUT Tuning Coil 5Z-345
T3 IFT. 455 KHZ (YELLOW) 4Z-1227
T4 IFT. 455 KHZ (WHITE) 4Z-1228
T5 IFT. 455 KHZ (BLACK) 4Z-1229
IC-3 IC. RC-4136
VR-3 Semi Va iable Resisto 10K ohm SVR010KS3
14 -

GENERAL:
Dimensions
Weight
Powe suppiy
Cabinet
Channels
Cont ols
Mic ophone
Semiconducto s
Special Featu s
RECEIVER:
F equency ange
Sensitivity
Selectivity
Adjacent channel ej
Audio output at 10%
Spu ious esponse
Inte modulation
C ossmodulation
Squelch sensitivity
Noise limite
Powe consumption
TRANSMITTER:
F equency ange
Modulation capability
Modulation disto tion
F equency tolé ance
SPECIFICATIONS
230 (h) x78 (w) x43.5 (d) mm
800 g ams witout batte ies
8 penlight d y cells (12 volts) o 10 penlight
echa geable nickel-cadmium batte ies (12.5 volts)
Aluminium die cast f ont and high impact ABS back
12 channels
volume; squeich; ANL; standby; ope ate; cail; channei
inte nai mic ophone/speake combination
2 integ ated ci cuits; 16 t ansisto s; 2 FET;
17 diodes
Elect onic T/R switching; 12 channels; standby
batte y save ; switchable automatic noise
limite ; S, powe and batte y mete ;
active audio filte type speech p ocesso .
27.005 to 27.135 MHz
0.5 /i\l fo lOdB S +N/N and 100 mW output at 30%
lKHz modulation
6KHz at-6 dB
bette than 50 dB ave age
250 mW
mo e than 50 dB down
mo e than 50 dB down
mo e than 50 dB down
less than 0.1 juV
automatic sé iés gâte
Receive mode (standby) 8 mA
Receive mode (fuli audio) 60mA
27.005 to 27.135,
100 %
less than 5% аГ~95% W ö d ü T äfT o fT
1,200 Hz a t-20 to +50 deg ees C
- 15 -

T5 ! IFT. 455 K HZ (I
IC-3 j IC.
ELECTRONIC SAS
CH-69Ü3 LUGAND, R □. BOX 176
SWITZERLAND
TEL.[phone] TELEX: 7031-4