Kenwood TR-7950 Bedienungsanleitung

S...

S.-

NTRODUCTON

v or of our latest product, the new TR795O (or TR793O) transcewer Please read this

mar ua ca efully before plamng your transceiver in service. The unit has been carefully engineered

r - r

tu ed

rig d quality standards, and should give you saosfactory and dependable operaOon for

A TER FPAC NG

rgco ta er

s r p k g i he event your unit needs to be transported for remote operation, mainten

arce o S v

g x it defn mis apply in this manual

s 'ga ded, mconv°nence only, no nsk of equipment damage or personal mjury.

qu ome t damage nay occur but not personal injury.

ONTENST

Mobile Installati n [general]

3 Fixed Sta ion Ins allation

Mer ory ack up th'um Battery

SECTION 2. CONTW S AND TERMINALS

rortPaie

22 RearParel

SE TION3 OPE ATON

3 1

BEFORE OPERA ION

32 SQUE CH

33 MEMORY NP

34 C ANGIN MEMOPYFREQUENCIES. . 12

35 SCA'4 PERATON

36 SCANST P.

...

37 SCAN LO OUT OPERATION

...

PR OR TV HA'JNL SELECT

39 PRIOR TYOPER SWITCH

......

,'djTO'r * Cr

PEqATION.

3.1

TIVEROP RATEDSCAN

12 AUTOPATCH SIDETONE

ANDBEEP RLEVELADJUSTMENT,

3 P I EDCH N'JELS

314 TU79( P1 )INSTALLATION

.......

"ECTION 4 A D tONAL INFORMATION

SEC ION

0 TIO A A CESSORIES

...

17, 18

M lCD

AGRW

ACCESSORIES

Carefully unpack your

TR-7950 (or TR-7930) and check

that it is

supplied with

the following accessories.

(1)

Dynamic microphone (with U/D switch)

(T9i-03i3-05)

.....

piece

(2)

Mounting Bracket

Mounting parts:

Hex wrench (wOI-0401-04)

piece

Nuts (5 mm diameter)

(Ni 4-0510-04)

......

4 pieces

Hex-socket screw

(N09-0008-04)..

pieces

Flat washers

(6 mm

diameter)

(Ni 5-1060-46)

,.........

4 pieces

Spring washer (6 mm diameter)

(NI 6-0060-46)..........

4 pieces

(3) Foot

Rubber foot (small, rear)

(J02-0069-05)

......

2 pieces

Rubber foot (large, front)

(J02-0070-05)

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

2 pieces

Screw (N30-3006-41 )..........................

4 pieces

(4)

DC power cord (with 2P plug and fuse)

TR-7950(E30-1 685-05)1

TR7930(E30-1 674-05)

.......

piece

(5)

Spare fuse

TR-7950(i OA) (F05-i 031-05),.,.

. 1

piece

TR-/930(8A)(F05-8021 -05)............

. 1 piece

(7)

Miniature plug (for external speaker)

(Ei2-000i -1 5) .............................

piece

(9)

Warranty card..............................

. 1 copy

(10) Instruction manual ............................

copy

FEATURES

TR-7950 FEATURES'

• 21

NEW, multi-function memory channels

• Chaise of 45 or 25 watts output

The TR-7950 provides a hefty

watts

output,

while

the TR-7930 features a more modest 25 watts. A HI!

LOW power switch allows power reductior to

approx.

5 watts(adjustable).

• Long-life lithium battery memory back-up

Built-in lithium battery has an estimated 5 year life.

• Automatic offset

The microprocessor is pre-programmed for simplex

_600 kHz offset, in accordance with the ARRL 2 meter

band plan. "OS" key allows manual offset change.

• Programmable priority alert

The PR1ORITY channel may be programmed as any one

of the 21 memories, with the ALERT switch "ON," a

dual "beep" sounds when a signal is present

on the

PRIORITY channel. The OPER switch allows and in-

stant move to the PRIORITY channel.

• Programmble memory scan lock-out

"LO' key for programming the scan to skip selected

nemory channels, without erasing the memory.

The lower limit may

be programmed into memory "A"

and the upper limit into memory "B".

• Center stop during band-scan, with

indicator

Stops on a channel center during band-scan, with

center tuning

indicator.

• Scan resume selectable

Scan

stops

on busy channel. Selectable automatic time

resume-scan

(approx. 5 sec., adjustable), or carrier oper-

ated resume-scan. a scan delay after carrier-drop of ap-

prox. 1

seconds is built-in.

• Programmable sub-tone channels

Optional TU-79 three frequency sub-tone unit provides

keyboard selectable sub-tone channels, which may be

stored in memory.

• Built-in

1 6-key autopatch. with adjustable monitor

The keyboard functions as a 16-key autopatch during

transmit

DTMF tones appear

in the speaker output

when a key is pressed during transmit.

• Front panel keyboard control

Used for selecting frequent panel keyboard control.

Optional accessories:

• TU-79 three frequency diode programmable tone unit.

• KPS-1 2 fixed-station power supply

for TR-7950.

• KPS-7A fixed-station power supply

for TR-793O.

• SP-40 compact mobile speaker.

9)b

- .aasa,a, a* nfl

Sen

BEFORE USE

rstFOE conneclon, check polanty

not

install near heater outlet

After parkwg in he sur, or

inside tempe ature s

0 coo

this urt BEFORE ransm tt g

This

unit is designed for 1 2V negatwe ground ONLY.

Keep equipment away from heat and out of

direct

sunight.

STOP

not adjust coil, trimmers or pots! These are factory

justments.

SPECIFICATIONS

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

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

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

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

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

[GeneraU

Max. 9.5A in Ht transmit mode (TR7950)

[Transmitter]

[Receiver]

Circuitry..

...

Double superheterodyne

Intermediate frequency

1st

10.695 MHz

2nd

455 kHz

Receiver sensitivity

Better than 30 dB for 0.5

S^NIN

Better than 12 dB for 0.25 pV SINAD

Receiver selectivity

More than

1 2 kHz (6 dB)

Less than

24 kHz (60 dB}

Spuriour response

Better than

70 dB

Squelch sensitivity

Less than 0.16 pV (threshold)

Auto scan stop level

Less than

0.2 1zV (threshold)

Audio oui.put

More than 2.0 watts across 8 ohms load (5% dist,)

Note: Circuit and ratings are subject to change without notice due to developments• in technology.

TR795O/793O

SECTION 1 INSTALLATION

1. Interconnection

Connect the antenna and power supply as shown in Fg

1 -1 for fixed station.

12. MOBILE nstaUation, [genera}

Un e drtver's seat

Understde of

dashboard

Stdeo

coso'

Drifi holes tn the bottom of

dashboard Secure the mounttrtg

bracket wtth nuts, and bolts

The transceiver should be acated

from

your

k ieee,

Hoof tOp tistallatton

Front fender

t,,utter

moo it

Trunk mount

Bee re o

Sr.

ony.,

mobtie arterna

Ltft he trtrr plate and nstafl the

cab e

0 0

f f

"vail

R735OorTF'J93O

ate

2 Mobil Ope ano

ns allation

errv at

Yagi antennas IARRAY)

To,

Ground plane

Coaxal cable

Rotor

Transceiver performance

depends largely on the type of antenna

Roter Control cable

Fig. 1 -3 Fixed Station Operation Installation

TR-7950

fflfl

or TR-7930

Antenna select

SWR meter

switch

Yag antenna

Ground plane

antenna

It is convenient to install both

Yagi and ground plane antennas

for selectable use.

14. MEMORY BACK-UP LITHRJM BATTERY

A lithium battery is contained in the transceiver to retain

memory. Therefore, turning off the POWER switch, dis-

connecting the power cable, or a power failure will not

clear the memory. The battery will last approximately five

years.

When the battery discharges and erroneous display

may appear on the LCD. Lithium battery replacement

should be performed by an authorized Kenwood service

facility - either your Kenwood dealer, or the factory.

Note:

______

___________

When the lithium battery is replaced, the microprocessor must be

reset.

Press the microswitch accessible through the opening on

the bottom cover, as shown.

Fig. 1-4 Microprocessor reset

ini9 U

SECTION

2 CONTROLS AND TERMINALS

2-1, Front Pane!

(ij

VOL/POWER

Power ON-OFF switch and volume control are combined.

Turning the control fully counterclockwise will turn the

power OFF. Clockwise rotation will increases the volume.

®SQUELCH

The squelch control is used to eliminate noise during no-

signal time, Normally, this control is adjusted clockwise

until the noise disappears and the Center Tuning indicator

goes off (threshold level). For scan operation, this control

must be set to the threshold point.

® LCD and Indicator

Group

ri ri

iii I ri i

rrrri

[1T

____

MHz

REV

C. TUNING

PRIO

TX shift indicators:

EJBy pressing the

key on the keyboard, the

indica-

tor will light in sequence to show transmit frequency is

switched down 600 KHz from the receive frequency.

By pressing the

key on the keyboard, the E indica-

tor

will light in sequence to show the transceiver is

operating in the simplex mode.

EJBy pressing the

key on the keyboard, the

Jindica-

tor will light in sequence to show transmit frequency is

switched up 600 KHz from the receive frequency.

b) LiJ indicator:

By pressing the TONE pushbutton the four digit frequency

display changes to show which of three preset subaudible

frequency channels is selected. iJ does not display at FO

(no tone). TU-79 option required.

1 indicator lights

when scan operation is in pro-

gress.

d) This section displays either frequency in four digit

(146.520 MHz is displayed as

6.520 ), or one of four

subtone conditions (Fl -3, or 0, no tone).

TR795O/793O

g) I ns ED ndicato g ts wher ftc REV swtch is ON

'ndc,ates

e ra ce e has stoppel at ciarnel

center

)

T s LED nd at s he PRIORITY OPER swcc ON

S/RI e

mete

s LED

Tie er

ndcates relative rece e rput

sgn stre 'igt or ansm't RF output

Keyboa d

BEE ER'IOr E EDBACK

umbor keys u cton as autopatcl keys

ON AIR Inthcator

This hght emitting diode (L E D,) will hght during transmit

n ode

MORY Channel Selecto

Ths

h s

used

to select one of 21 mer'r orj c a iels

Of hose, channels 1 1 5 store frequeices includir g -'- 600

kHz offset, Channels, 16

and

19 are paired

for

DD-SPLlT

ope ation

Channel

A ftores the pro-

g ammed sca

low frequency limrt, and channel B stores

he hgh frequency mit.

MIC Connector (6 pm)

or conrecton of the supplied mcrop'lone (or and MC 46

autopatch mcrophone).

8 REVS vtch

swach is used to reve se the repeater shift ( 600

Pz) anc othe trans

Tiit/

ecevc f equencies (CH 1 6 - 1 7

8-19)

ONE switch

Prcss ths switch to desgnte the tone preset frequency

cianrcl alorg wi l theL

keys. (TU 79 optior

re u'red for ope a 'o

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