Kenwood Car Speaker Sp 230 Users Manual

SP-230 to the manual 1af7ea98-5278-4ce6-b3ed-8c1ff53f0655

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------------$KEN\NOOD
MODEL

SP-230
OPERATING

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.

SPEAKER

MANUAL

CONTROLS AND THEIR FUNCTION

SP-230

GENERAL
Your SP-230 is a sophisticated external speaker designed
to further enchance operation of HF Transceivers. It features 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:

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PHONES

1

3

4

5

12 cm dia.
2 Watts
8n
100Hz to 5kHz.
500Hz, -3dB.
3kHz, -3dB.
105kHz, -3dB.
1 kHz, -3dB.
-6dB/oct.
W 180 mm (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 x 12,2 pes.
(N30-4012-41)
1 pin plug, 2 pes.

(E20-161O-Q5 )
PACKING
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.

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 3 kHz; -3 dB
at 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.
FI LTERS, HIGH 1 and HIGH 2 Switch
These attenuate frequencies above 1 kHz; -3 dB at 1
kHz, -6 dB/octave.

USING COMBINED

USE OF FILTERS

FILTERS

1. When both LOW and HIGH 1 filters are engaged, the
pass bandwidth ranges.from 500 Hz to 3 kHz.
2. When both LOW and HIGH 2 filters are engaged, bandwidth is 500 Hz to 1.5 kHz.
3. LOW' HIGH 1 and HIGH 2 filters engaged, 500 Hz to

1 kHz.

In general, it is desired that a CW, AM, or similar transmission be received clearly within the usual communication audio bandwidth,
300 Hz - 3 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 I F stages is narrowed, the equivalent noise bandwidth
will also narrow, thus improving
the signal-to-noise

500Hz

1 kHz

1.5kHz

3kHz

ratio. Alternately,

AF stage can be narrowed
ponent, enhancing reception.

the bandwidth

to attenuate

the

of the

noise

com-

Proper filter selection depends on transmission
mode
and type of noise encountered.
1. SSB: use the HIGH 1 and LOW filters, or the HIGH 2
and LOW filters. In more severe cases, use both HIGH 1
+ HIGH 2, and LOW filters.
2. CW: use the HIGH 1 and HIGH 2 filters or HIGH 1 +
HIGH 2 and LOW in combination.
LOW

HIGH 1. 2

HIGH 2

HIGH 1

INSTALLATION OF EXTENSION FEET
To install the extension
of the cabinet as illustrated

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feet, screw to the front,
below.

8"

123
REAR

PANEL
I NPUT connectors

1, 2

~

Accepts aud io output from two sources.
LINE OUT Connector
Standard
line output through the filters
SSTV, or similar use.

3

Extension foot

kSCreW(M4)
for RTTY.

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Woodcock

150. Japan

COMMUNICATIONS,

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TRIO-KENWOOD

Tokyo

COMMUNICATIONS

Comcton

TRIO-KENWOOO
0·6374

INPUT

CORPORATION

17-5. 2-chome. shibuya. shibuya-ku

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PTY.

LTD.

Australia

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HIGH I

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ON-

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

bottom



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Page Count                      : 2
Creator                         : DPE Build 5095
Producer                        : DPE Build 5095
Author                          : Linda Merryman

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