Kenwood SP-230 Bedienungsanleitung

------------ KEN\NOOD

MODEL

SP-230

SPEAKER

OPERATING MANUAL

We're happy that you've chosen the Model SP-230 for

your receiving needs. It has undergone stringent quality

control inspection and tests prior to packing and has left

our factory in perfect operating condition. Please inspect

your SP-230 carefully for any signs of damage in transit.

If the unit is damaged, immediately notify the sales

representative from whom you purchased the unit.

GENERAL

Your SP-230 is a sophisticated external speaker designed

to further enchance operation of HF Transceivers. It fea-

tures precise audio response and matches the KENWOOD

HF transceiver in appearance. Its advantages are:

Built-In

selectable tone filters to attenuate high or low

frequency response inputs;

*Two channel selectable input and the headphone output

through the tone filters.

SPECIFICATIONS

Speaker used:

Rated Input

Impedance:

Frequency response:

Filter cut-off frequency,

LOW:

HIGH 1:

HIGH 2:

HIGH 1

HIGH 2:

Filter attenuation:

Dimensions:

Net weight

Accessories furnished:

PACKING

12 cm dia.

2 Watts

100Hz to 5kHz.

500Hz, -3dB.

3kHz, -3dB.

105kHz, -3dB.

kHz, -3dB.

-6dB/oct.

W 180

(7-1/16")

H 133 mm (5-1/4")

D 287 mm (11-5/16")

1.8

kg. (4.0 Ibs.)

Speaker cord, 1 pc.(E14-0101-05)

Extension foot, 2 pes.

(J02-0049-04)

Screw, M4 x12,2 pes.

(N30-4012-41)

1 pin plug, 2 pes.

(E20-161O-Q5 )

Please save the shipping cartons and packing material.

They have been designed for the safe shipping of your unit.

There will be considerably less chance of damage if you

ship your unit in its original cartons and packing.

CONTROLS AND THEIR FUNCTION

SP-230

II IJIiiiH-r---2

PHONES

3 4 5

Front Panel

1 PHONES Connector

Standard headphone output, through the tone filters.

2 INPUT Switch

Selects one of two audio inputs.

3. FI LTERS, 'LOW Switch

This switch attenuates frequenciec

below

500 Hz: -3

dB at 500 Hz, -6 dB/octave.

4 FILTERS, HIGH 1 Switch

This switch attenuates frequencies above

kHz;

-3

kHz,

-6

dB/octave.

5 FILTERS, HIGH 2 Switch

This switch attenuates frequencies above 1.5 kHz;

-3

dB at 1.5 kHz,

-6

dB/octave.

FILTERS, HIGH 1 and HIGH 2 Switch

These attenuate frequencies above 1 kHz; -3 dB at 1

kHz,

-6

dB/octave.

USING COMBINED FILTERS

1. When both LOW and HIGH 1 filters are engaged, the

pass bandwidth ranges.from

500

Hz to

kHz.

2. When both LOW and HIGH 2filters are engaged, band-

width is

500

Hz to

1.5

kHz.

LOW' HIGH

and HIGH

filters engaged,

500

Hz to

kHz.

500Hz 1 kHz 1.5kHz 3kHz

LOW HIGH 1. 2 HIGH 2 HIGH 1

0000000

123

REAR PANEL

1, 2 INPUT

connectors

Accepts aud io output from two sources.

3 LINE OUT Connector

Standard line output through the filters for RTTY.

SSTV, or similar use.

LOW

-PUSH

ON-

rf'ILTERS

LOW HIGH I HIGH2

E1GEI

r-------+--+--~ ~

SP ~E.

L-_f-+..J

INPUT

D AIs4l

L.::.J

.- B

(Oot--j-I

INPUT

LA (Oot---'

USEOF FILTERS

In general, it is desired that a CW, AM, or similar trans-

mission be received clearly within the usual communica-

tion audio bandwidth,

300

Hz -

kHz. However. QRM,

QRN or RFI may lower the overall signal-to-noise ratio at

the receiver, resulting in degraded reception. In theory, as

the pass-band width of the IF stages is narrowed, the equi-

valent

noise bandwidth will also narrow, thus improving

the signal-to-noise ratio. Alternately, the bandwidth of the

AF stage can be narrowed to attenuate the noise com-

ponent, enhancing reception.

Proper filter selection depends on transmission mode

and type of noise encountered.

1. SSB: use the HIGH 1and LOW filters, or the HIGH 2

and LOW filters. In more severe cases, use both HIGH 1

+HIGH

and LOW filters.

2. CW: use the HIGH 1 and HIGH 2 filters or HIGH 1 +

HIGH 2and LOW in combination.

INSTALLATION OF EXTENSION FEET

To install the extension feet, screw to the front, bottom

of the cabinet as illustrated below.

~ Extension foot

kSCreW(M4)

A product of

TRIO-KENWOOO CORPORATION

17-5. 2-chome. shibuya. shibuya-ku Tokyo 150. Japan

TRIO-KENWOOO COMMUNICATIONS

1111 West Walnut Street. Comcton Centcrrna 90220. USA

TRIO-KENWOOO COMMUNICATIONS, GmbH

0·6374 Sternbach TS.lndustliestrasse SA. West Germany

TRIO-KENWOOD ELECTRONICS, N.V.

leuvensesteenweg 504. 6·1930 Zavent em

Belgium

TRIO-KENWOOO [AUSTRAUAJ PTY. LTD.

4E Woodcock Place. Lane Cove N S.W 2066. Australia

15105 PRINTED IN JAPAN 850-2759-00 (K.O)

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