Hitachi KP-F1 Technical Operation Manual

Progressive Scan Type Black and White Camera

(Frame Shutter)

KP-F1

Technical Operation Guide

Hitachi Denshi America, Ltd

150 Crossways Park Drive

Woodbury, NY 11797

Phone: [phone]

Fax: [phone]

1

May 1997

Table of Contents

1. General ………………………………………………………………… 4
Major Features ………………………………………………………... 4

2. External view …………………………………………………………. 5
Tripod Adapter ……………………………………………………….. 5

3. Specifications …………………………………………………………. 6

Composition ………………………………………………………….. 7
Optional Accessories …………………………………………………. 7

Warranty ………………………………………………………………. 8

4. Operating precautions ………………………………………………….8

5. Name and function of each section …………………………………... 10

6. Connections ………………………………………………………….. 11

7. Optical System ………………………………………………………. 12

8. Optical Filter …………………………………………………………. 13

9. Cable Connections …………………………………………………… 13
Basic Connection ……………………………………………………. 13
Optional Connection ………………………………………………… 14

10. Arrangement of internal controls …………………………………… 14

11. Camera Settings …………………………………………………….. 15

12. Video Output modes ………………………………………………… 17
Simultaneous odd/even field output ………………………………… 17
Frame output ……………………………………………………….. 17
Video output mode table …………………………………………… 18
Video output mode signals ………………………………………… 18

13. External synchronization …………………………………………… 19

14. Field-on-Demand function …………………………………………. 20
Field-on-demand function table …………………………………… 20
One trigger mode …………………………………………………… 20

2

Two trigger mode …………………………………………………… 21
Sync non-reset mode ……………………………………………….. 22
Fixed shutter mode …………………………………………………. 22

15. Non-interlaced operation …………………………………………… 23

16. Timing diagrams …………………………………………………… 24

17. Image sensor ……………………………………………………….. 30

18. Options ……………………………………………………………… 31

3

1. General

The Hitachi KP-FI is a full-frame shutter black and white camera using a 1/2" progressive scan CCD.

The KP-FI features high performance, high sensitivity, and high resolution. The KP-FI is provided with a
variety of functions including a multiple step electronic shutter, integration mode switching, external
HD/VD sync input, Field-on-Demand, and non-interlaced scanning functions.
A picture suitable for image processing systems is obtained, because a CCD with square lattice pixels is
used.

Major features

1) Frame shutter function
The frame shutter is provided on this camera.
High resolution in the vertical direction is obtained for moving objects, compared with
conventional cameras.

2) Simultaneous odd/even outputs
The signals of two horizontal lines are separately output at 1/60 sec. (1/50 CCIR).
Two channel video signals can be simultaneously output from the multi-pin connector or the
BNC connectors on the rear. (The video signals cannot be simultaneously output from the
multi-pin connector and from the BNC connectors.)

3) Frame output
All electric charges are read out from all pixels at 1/30 sec (1/25 CCIR).(Non-interlaced mode)

4) High resolution
The latest high grade CCD with square lattice pixels is used. The number of pixels is 350,000
(490,000 CCIR), and the number of effective pixels is 659 (H) X 494 (V), 782 (H) X 582 (V)
CCIR).

5) Multiple step electronic shutter
A multi-step electronic shutter is provided.
Eight shutter speeds are selectable between 1/100 (1/120 CCIR) and 1/10,000 sec.

6) Selectable internal/external synchronization (interlaced and non-interlaced)
The sync mode and the scanning mode are automatically switched according to the kind of the

4

sync signal applied.

7) Field-on-Demand function
The images captured at an optional timing by an external trigger signal input can be instantly
obtained as Images.
The timing can be adjusted by an external trigger signal and the shutter.

2. External View

'

Caution

For installation of the camera use camera mounting holes A, B and C.

When a heavy lens is used, or when excessive shock or vibration is applied, fix the lens to the
equipment, too.

5

Secure the adapter to the camera mounting holes B
or C, using the four screws supplied (M2 x 5).

NOTE:
If the screws are too long, they will cause damage
to the internal circuit boards in the camera. Be sure
to check the length before installing.

3. Specifications

Imaging device Interline CCD
No. of total pixels EIA: 692 (H) x 504 (V)
CCIR: 823 (H) x 592 (V)
Pixel Pitch EIA: 9.9 (H) x 9.9 (V) µm
CCIR: 8.3 (H) x 8.3 (V)µm
No. of effective pixels EIA: 659 (H) x 494 (V)
CCIR: 782 (H) x 582 (V)

Sensing area (1/2 inch size) EIA: 6.52 (H) x 4.89 (V) mm
CCIR: 6.49 (H) x 4.83 (V) mm
Signal Format Conforming to EIA / CCIR (Normal Mode)

Lens Format C-Mount
Flange focal distance 17.526 mm (not adjustable)

Hor. Scanning frequency EIA: 15.734 KHz
CCIR: 15.625 KHz
Vert. Scanning frequency EIA: 59.94 Hz
CCIR: 50 Hz

Sync System Internal / external (automatically switchable)
Internal sync operation 2 : 1 interlaced / non-interlaced
External sync input HD / VD 2 to 6 Volts p-p negative
Input impedance: 1k ohm
Frequency deviation: ±1%

Video Output 1.0 Volt p-p, 75 ohm unbalanced
Video: 0.7 Volt p-p Sync: 0.3 Volt p-p, negative

Resolution EIA: 500 TVL (H) x 485 TVL (V)
CCIR: 580 TVL (H) x 575 TVL (V)

Sensitivity 400 lux f4.0, 3200 K

Minimum illumination 3 lux f1.4, AGC = on, Gamma = on, no IR cut filter

Signal -to-noise ratio 60db

Electronic shutter 1/10,000, 1/4000, 1/2000, 1/1000, 1/500,
1/250, 1/125, 1/100 (1/120 CCIR) External
switch selectable. OFF mode: Normal
exposure (factory setting)

6

Gamma correction 1 (factory setting) or selectable by internal switch
Separately settable to two video channels

AGC Fixed or AGC: Available to only VIDEO OUT 1
External switch selectable. Fixed = factory setting.

Gain selection VIDEO 1 : Fixed or set by knob
VIDEO 2 : Fixed
The external switch is selectable. Finely adjustable
to 2 channels by knob. (Fixed gain at factory
setting)

Field-on Demand function ON/OFF: Internal switchable ONE trigger, TWO
trigger, and FIXED SHUTTER mode selectable by
internal switch. (Factory setting: OFF)

Power supply 12 Volts DC ± 1Volt
Power consumption 250mA or less

Ambient conditions Operating: -10 to 50 degrees C
90% RH or less. Storage: -20 to 60 degrees C
70% RH or less
Caution: For continued stable operation, the camera should be used under 40 degrees C or less
when it is used continuously for an extended period of time.

Anti -vibration 7G (10 to 60 Hz, amplitude: 0.98 constant,
60 to 200 Hz, amplitude: variable, acceleration:
constant. 10 to 200 Hz. Sweep: 1min., XYZ, 30
min.

Di mensions 44 (W) x 44 (H) x 67 (D) mm
Mass 150 grams approximately

3.1 Composition

1) Camera body (with IR cut filter)

2) Operation manual

3.2 Optional accessories

1) Tripod adapter, TA-MI (23855AX*)

2) 12-pin plug, HRIOA-IOP-12S(01) (23810AX*)

3) 6-pin plug, HR-IOA-7R-6P(OI) (JMH0092*)

7

4) AC adapter, AP-130 (23805AX*)

5) Junction box, JU-FIA (23832AX*)

6) Dummy grass (AR coated) (XMD0009*)

7) Camera cables

Assembly Type Molded Type

2m C-201KS (23856AX*) C-201KSM

5m

10m

Molded type: Produced upon request.

C-501KS (23857AX*) C-501KSM

C-102KS (23858AX*) C-102KSM

8) Trigger cables
Assembly Type

2m C-201RK (23864AX*)

5m C-501RK (23865AX*)

*Product part code

Caution

The specifications of this equipment are subject to change without notice for improvement.
Prior to placing your order, be sure to confirm that these specifications are the latest ones.
Hitachi Denshi guarantees that the equipment shipped from our factory conforms to Hitachi
Denshi's standard warranty conditions and will perform quality control within the range
necessary to meet the warranty.

Warranty and After-sales Service

1) The guarantee period is one year after the date of purchase. However, defects due to erroneous
use or intentional acts are excluded.

2) For defects after expiration of the guarantee period, Hitachi Denshi will repair the equipment
if the intended function is restored by the repair work, and the cost is charged to a customer.

3) Hitachi Denshi is not liable for the losses caused when the equipment is used in a system used
for business trades, production process, medical fields, crime prevention applications, etc.

4) The parts used in the equipment have their respective lives. The lives of such parts will be
shortened under the environments of high temperature or high humidity. When stable
operation is required for a long time, it is recommended to perform periodical maintenance and
inspection every year or every two years, depending on operating conditions.

4. Operating precautions

8

4-1 Power supply
Connect 12V ± IV DC from an external power supply.
Use a stable power supply without ripple and noise.
4-2 To protect CCD(sensor)

1) Do not touch the glass surface of the sensor to avoid dirt and scratches.

2) If the glass surface of the sensor should become dusty or dirty, wipe off dust or dirt
carefully with a cotton-tipped applicator. Never use dry cloth or paper. The surface may
be scratched and further the sensor may be damaged by static electricity.

3) Be sure to mount a lens or the supplied mount cap on the camera to protect the sensor
from dust.

4-3 To protect camera

1) Do not use or store the camera under direct sunlight, in environments exposed to rain,
or snow, or at a place exposed to flammable or corrosive gas.

2) The camera operates in the temperature range between -10 and 50°C.
If the camera is used or left at a high temperature(40°C or more)for hours, the life of
the camera may be shortened.
When using the camera continuously for hours, avoid using the camera in areas of high
temperature or high humidity.

3) Do not drop the camera. Do not apply strong shock or vibration to the camera.

4) Before connecting or disconnecting a connector, turn off the camera. Be sure to hold
the connector body to connect or disconnect the connector.

4-4 Arrangement of camera

When several cameras are installed very close with each other, the cameras may interfere with
each other to cause noise. Install the cameras as far as possible from each other or operate the
cameras by an external sync signal.

4-5 Phenomena inherent to CCD imaging device

Following are phenomena inherent to a CCD imaging device, and are not defects.

1) Smear and blooming
When strong light (lamp, fluorescent lamp, reflected light, etc.)is shot,
pale bands are displayed vertically above and below the light.
In this case, change the angle of the camera so that such strong light
does not enter the camera through the lens.

2) Fixed pattern noise
When the camera is operated in a high temperature, fixed pattern noise may appear on
the entire screen. The higher the sensitivity of camera, the more this fixed pattern

9

noise appears.

3) Moire
When fine patterns are shot, moire may be displayed.

5. Name and function of each section.

1 Video Out 1 (BNC)

Composite video signal (VS) output (VIDEO OUT 1)

2 Video Out 2 (BNC)

Composite video signal (VS) output (VIDEO OUT 2)

3 Manual gain control

Adjustable when switch 4 is set to M (effective only for

4 Gain select switch

Selects gain adjustment (effective only for VIDEO OUT 1)
A: Automatic (AGC)
F: Fixed
M: Manual

5 LENS (Trigger) connector
Use for iris lens, FLD signal output and trigger signal input C.

6 DC In/Sync connector
Connector for DC 12 V supply, composite video signal (VS) output and external sync input.

7 Video output mode select switch
The following modes can be selected.
2I: Continuous interlaced odd and even field signals are respectively output from Video Out I
and Video Out 2 at 1/60 s (CCIR: 1/50 s).
2N: Continuous odd and even field signals are respectively output from Video Out I and
Video Out 2 at 1/60 s (CCIR: 1/50 s).
IN: Non-interlaced output at 1/30 s (CCIR: 1/25 s) is obtained only from Video Out 1.

8 Shutter speed select switches
Sets the desired shutter speed.

9 Shutter on/off switch

10

6. Signal connection to connector

1) Signal connections to DC IN / SYNC connector (12 pins)

Internal External Sync Mode
Pin Sync
No. Mode HD/VD One Trigger Two Trigger Fixed Shutter Sync N.R.

1 Ground
2 + 12 volt input
3 Video 1 output Ground
4 Video 1 output Signal
5

6

7

8 Video 2 Output Ground

9 Video 2 Output Signal
10 Ground
11 +12 Volt Input
12

Note:

The video signal cannot be fed simultaneously from both the VIDEO OUT connector and the
DC IN/SYNC connector. If both outputs are connected simultaneously, a proper picture
cannot be obtained.

The supply voltage should be 12 volts DC with a tolerance of ± 1 volt DC.

HD in Trigger B In

Ground Ground

HD in Trigger B In

Signal Signal

VD in Trigger A In Trigger A In Trigger A In Trigger A In

Signal Signal Signal Signal Signal

VD In Trigger A In Trigger A In Trigger A In

Ground Ground Ground Ground

Field-on-Demand Mode

Plug :

DC IN/SYNC
Type: Hirose HR10-10P-12S(01)

Part Code: 23810AX

11

Pin

When selecting a lens, the length (A)

2) Signal connection to LENS (trigger) connector (6 pins)

Signal

No.

1 FLD pulse output
2 WEN pulse output
3 GND
4 Trigger C input (SYNC N.R. only)
5 Auto iris video output
6 +12 volts DC

Note:

• The FLD pulse is not output in the field-on-demand function.

• The auto iris video output function cannot be used when using the field-on demand function.

• FLD and WEN pulse output is CMOS level.

• Strobe is inhibited in the Low period of the WEN pulse.

Plug:
LENS (trigger)

Type: Hirose HR10A-7P-6P(01)

Part Code: JMH0092

7. Optical System

• Image size: ½ inch

• The flange focal distance is 17.526mm (in air).

• Flange focal distance is not adjustable.

Note:

from the flange surface to the end of
the screw mount must be 8mm or
less. If the length exceeds 8mm
damage can occur to the lens or
optical filter in the camera.

12

8. Optical Filter

The KP-F1 is provided with a IR cut filter, that can be removed if required for a specific
application.

Removal of the IR cut filter.

1. Remove two screws (1) shown, and filter
holder (2) will come off.

2. Remove the IR cut filter (3) from the filter
frame (4).

3. Then, reinstall and secure filter holder (2)
with the two screws (1).

Caution:

Prior to removal of the optical filter,
be sure to turn off the power.

9. Cable connections
Basic Connection

• Set the 75 ohm termination switch to ON at the last monitor, when multiple monitors are connected

in a loop-through configuration.

Note:
The video signal cannot be fed
simultaneously from both the
VIDEO OUT connector and the
DC IN/SYNC connector.

13

• Supply HD and VD pulses to the KP-F1 when using external sync drive.

connect 12 volts DC to the rear of the JU-F1.

• The power supply voltage should be between 11 and 13 volts DC and should be free of noise and

ripple.

• Confirm proper voltage polarity before connecting a external power supply to the KP-F1.

Optional Connections

When not using the AP-130 power supply,

10. Arrangement of Interna l Controls

14

11. Camera Settings

Gamma (y) correction
Factory setting is OFF (1.0), but it is changeable if necessary.
VIDEO OUT 1 (SW101) and VIDEO OUT 2 (SW102) can be set separately.

GAIN adjustment
Video output GAIN is adjustable. Adjusted to 0.70 V p-p (y OFF) at F4, 4001ux at factory
setting. VIDEO OUT 1 (RV101) and VIDEO OUT 2 (RV105) can be set separately.

Set-up adjustment
Set-up level is adjustable. Adjusted to 50 mV pep (DOFF) at factory setting. VIDEO OUT 1
(RV103) and VIDEO OUT 2 (RV107) can be set separately.

15

White clip adjustment
White clip is adjustable. Adjusted to 1.0 Vp-p at factory setting. VIDEO OUT 1 (RV102) and
VIDEO OUT 2(RV106) are used for adjusting white clip

White suppress (knee) adjustment available upon request.
Video signal level is prevented from white saturation and dynamic range is extended. It is
adjusted so that the video level exceeding 120% can be suppressed. VIDEO OUT 1 (RV104)
and VIDEO OUT 2 (RV108) can be set separately.

Electric shutter setting.
The electric shutter speed is set by turning the ON/OFF switch to the ON position and using
the shutter speed selection switch. The shutter always operates in the field storage mode.

As the shutter speed is increased, the CCD exposure time is decreased, causing a loss of sensitivity
in the camera. Since the sensitivity is lower, adjust the lens iris or increase the scene illumination.
When the shutter is used, the flicker of an object may be emphasized. If possible, use a DC light
source, which will not cause flicker.

Long-time exposure (low speed shutter) available on order.
Long-time exposure can be provided by switching the chip resistors of REAR board to 2FLD,
4 FLD, 6 FLD, 8 FLD, 10 FLD, 14 FLD, or 16 FLD.

16

Field-on-demand
The field-on-demand function is set as follows.

12. Video Output Modes

The frame shutter function operates in either of the following modes.

Simultaneous odd/even field output mode

The CCD odd and even line pixels are read simultaneously and are separately output
simultaneously (video 2-channel output). The two output methods are interlaced and

non-interlaced .
There are two kinds of output methods: interlaced (2 I) and non-interlaced (2 N).
Non-interlaced (2 N): EIA : 518 lines/frame
CCIR: 620 lines/frame

Frame output mode

The non-interlaced (1N) video data of all exposed pixels are output (Video 1 only) at one
frame intervals.

17

KP-F1 Video Output Mode Table

Video Output Mode Output Connector Output signal

2I Video 1, Video 2 1/60 s 2:1 Interlace (standard)
2N Video 1, Video 2 1/60 s 2:1 non-interlace (video 1; odd, video 2; even)
1N Video 1 1/30 s 1:1 non-interlace (progressive)

Video Output Mode signals:

Interlaced (EIA: 1/60 s, CCIR: 1/50 s)

Non-interlaced (EIA: 1/60 s, CCIR: 1/50 s)

18

Progressive

Non-interlace (EIA: 1/30 s, CCIR: 1/25 s)

13. External synchronization (2:1 interlaced)

When operating the camera by external drive signals, connect sync drive signals (HD and VD) to the
DC IN/SYNC connector. When sync signals are supplied, the mode is
automatically switched from the internal sync mode to the external sync mode.

Input signals

HD and VD signals
HD EIA : f(H)=15.734kHz + 1%
CCIR: f(H)=1 5.625kHz + 1%

VD EIA : f(V)=59.94Hz[f(V)=f(H) ÷262.5]

CCIR : f(V)=50Hz[f(V)=f(H) ÷ 312.5]

Input level

HD 2 to 6 Vp-p
Negative signal

VD 2 to 6Vp-p
Negative signal

Input impedance

1 k ohms

19

14. Field on demand function

Field on demand refers to a function for picking up rapidly moving objects by applying a trigger
pulse input at a desired timing to provide a desired or a fixed exposure time. The function is
effective since the object is always taken at the same position in the picture. The camera is
provided with four modes. Simultaneous odd and even field output and frame output can be
produced for each of these modes. However, one image output is obtained per trigger. This
function is unavailable in the 2N mode.

Field-on-Demand Function Table

Trigger

Mode

One

Trigger

Two

Trigger

Fixed

Shutter

Sync

Non-

Reset

Example of DIP switch, SW2 setting:
SW2: 01000010

One trigger mode

At a single trigger pulse input (Trig-A), exposure starts at the pulse rising edge and ends at the pulse
falling edge. The vertical sync is reset and the video output is obtained immediately.
The pulse width equals the exposure time.

Camera Switch

Setting
SW1: ON
SW2: 11110000
SW3: OFF
SW1: ON
SW2: 11011000
SW3: OFF
SW1: ON
SW2: 00000000
SW3: OFF
SW1: OFF
SW2: 01000010
SW3: ON

Signal

Setting

2I
2N
1N

2I
2N
1N

2I
2N
1N

2I
2N
1N

Video 1

Output Signal
OK: VS signal 1/60s
NG: No signal (*1) 1/60s
OK: VS signal 1/30s
OK: VS signal 1/60s
NG: No signal (*1) 1/60s
OK: VS signal 1/30s
OK: V signal 1/60s
NG: VS signal (*2) 1/60s
OK: V signal 1/30s
OK: VS signal 1/60s
NG: VS signal (*3) 1/60s
OK: VS signal 1/30s

(*1) Output Signal is 0 Volts DC
(*2) Output Signal has composite sync and black pedestal
(*3) Output Signal is not synchronized with external sync

Video 2

Output Signal
OK: VS signal 1/60s
NG: No signal (*1) 1/60s
NG: S signal 1/30s
OK: VS signal 1/60s
NG: No signal (*1) 1/60s
NG: S signal 1/30s
OK: V signal 1/60s
NG: VS signal (*2) 1/60s
NG: No signal 1/30s
OK: VS signal 1/60s
NG: VS signal (*3) 1/60s
NG: S signal 1/30s

20

Trigger specifications: 5 Volts p-p +0.5/-1.0 Volts p-p
a: 2I: 1 field or more EIA: 16.7 ms or more
CCIR: 20 ms or more
1N: 1 frame or more EIA: 33.4 ms or more
CCIR: 40 ms or more
b: 2I: 741.6 µs (EIA) 1131.3 µs (CCIR)
1N: 1250.1 µs (EIA) 2027.3 µs (CCIR)
High period = 8 µs or more

Two Trigger Modes

Two trigger pulses are input. Exposure starts at the Trigger B rising edge and ends at the Trigger A
falling edge. The vertical sync is reset and the video output is obtained immediately. The interval
between the two trigger pulses equals the exposure time.

Trigger specifications: 5 Volts p-p +0.5 / 1.0 Volt p-p
Trig-A Low Period: EIA 63.5 µs or more
CCIR 64 µs or more
a: 2I: EIA : 16.7 ms or more b: 2I: 741.6 µs (EIA)
CCIR: 20 ms or more 1131.3 µs (CCIR)
1N: EIA : 33.4 ms or more 1N: 1250.1 µs (EIA)
CCIR: 40 ms or more 2027.3 µs (CCIR)
Trig-B Low period : Not specified
High period : 8 µs or more
Note: Use a sync signal that is free of noise.

21

Sync non-reset mode.

At a single trigger pulse input (Trigger C), exposure starts at the pulse rising edge and ends at the pulse
falling edge. The video output is obtained at the next field after the end of the exposure. The pulse width
equals the exposure time.

Note: The Trigger input cannot be applied to fields of the video output where a picture is
produced ( a normal picture will not be obtained ). Use a sync signal that is free of noise.

Trigger specifications: 5 Volts p-p +0.5 / -1.0 Volt p-p
a: 2I: 741.6 µs (EIA)

1131.3 µs (CCIR)
1N: 1250.1 µs (EIA)

2027.3 µs (CCIR)
High period 8 µs or more

Fixed shutter mode

At a single trigger pulse input (Trigger A), exposure starts at the pulse rising edge. The
exposure time is set by the cameras electronic shutter switch. The video output is obtained immediately
after the end of the fixed exposure. In this mode, the vertical sync signal is absent from the video output.

Note: The trigger input cannot be applied to fields of the video output where a picture is

22

produced ( a normal picture will not be obtained ). Use a sync signal that is free of noise.

Trigger specifications: 5 Volts p-p +0.5 / 1.0 Volt p-p
High period 8 µs or more

15. Non-interlaced operation

When non-interlaced external sync drive signals (HD/VD) are connected from an external unit, the mode
is automatically switched to non-interlaced scanning mode. When the following external sync drive
signals are connected, the camera operates in the non-interlaced mode.

Input signals

HD and VD signals

HD EIA : f(H)=15.734kHz ±1%
CCIR: f(H)=15.625kHz ±
1%
VD EIA : f(V)=f(H) . (262±)(Hz)
CCIR: f(V)=f(H) . (312±)(Hz)

Input level

2 to 6Vp-p, negative

Input impedance

1k ohms

Waveforms of external drive signal (non-interlaced scanning).

The waveforms are the same as those of 2:1 interlaced external sync drive signals.

23

16. Timing Diagrams

24

25

26

27

28

29

17. Image sensor

1/2 inch interline, all-pixel read out type CCD
Total pixel number: EIA 692(H) X 504(V) CCIR 823(H) X 592(V)
Effective pixel number: EIA 6S9(H) X 494(V) CCIR 782(H) X 582(V)
Imaging area: EIA 6.52(H) X 4.89(V)mm CCIR 6.49(H) X 4.83(V)mm
Pixel size: EIA 9.9(H) X 9.9(V)µm CCIR 8.3(H) X 8.3(V)µm
Equivalent aperture size per pixel: EIA about 6(H) X 6(V)µm CIR about 5(H) X 5(V)µm

30

18. Options

31

Trigger Cable:
2m C-201RK (23864AX)
5m C-501RK (23865AX)
Numbers in parenthesis refer to Hitachi part code.
Standard type: Pin 5 and pin 6 are not used.

32

Attenuation of Video Signal due to cable length.

The attenuation due to optional cables C-501KS and C-201KS is shown in the chart below.
Attenuation is proportionate to the cable length. The characteristic cable impedance remains
constant as the cable length changes.

Cable

Length

Attenuation at 4 MHz

50 db/Km

Attenuation due 1 m 0.05 0.07

To cable length 2 m 0.1 0.14

In db. 5 m 0.25 0.35

10 m 0.5 0.7

The video bandwidth of the KP-F1 is approximately 7 MHz.

Attenuation at 7 MHz

70 db/Km

33

HITACHI DENSHI, LTD.

1, Kanda Izumi-cho Chiyoda-ku, Tokyo 101, Japan
Phone: [phone], Telex: J24178

HITACHI DENSHI AMERICA, LTD.*
Headquarters and New York Office

150 Crossways Park Drive, Woodbury, New York 11797, U.S. A.
Phone: [phone], FAX: [phone], Telex: 510-221 -1899

Chicago Office

250 East Devon Ave., Suite 115 Itasca, Illinois 60143, U. S. A.
Phone: [phone] FAX: [phone]

Los Angeles Office

371 Van Ness Way, Suite 120 Torrance, CA. 90501, U. S. A.
Phone: [phone], FAX: [phone]

Dallas Office

2100 West N. W. Highway Suite 1145 Grapevine, TEXAS
76051, U. S. A.
Phone: [phone], FAX: [phone]

Atlanta Office

3039 Amwiler Road, Suite 118 Atlanta, Georgia 30360, U. S. A.
P hone: [phone], FAX: [phone]

HITACHI DENSHI, LTD. (CANADA)*
Head Office

65 Melford Drive, Scarborough, Ontario M1B 2G6, Canada
Phone: [phone], FAX: [phone], Telex: 652-5324

Eastern Office

8100 H Trans Canadienne, St Laurent, Quebec, H4S 1M5, Canada
Phone: [phone], FAX: [phone], Telex: 582-4768

Ottawa Office

9 Antares Drive, Nepean, Ontario, K2E 7V5, Canada
Phone: [phone], FAX: [phone], Telex: 053-4533

HITACHI DENSHI (EUROPA) GmbH*
Head Office

Wesikircher Strabe 88, D-63110 Rodgau, Germany
Phone: [phone], FAX: [phone], Telex: 417-849

HITACHI DENSHI (U. K.) LTD.*
Head Office

14 Garrick Industrial Centre, Irving Way, Hendon, London
NW9 6AQ,
United Kingdom
Phone: [phone], FAX :[phone], Telex: 27449

Leeds Office

Brookfield House, Selby Road, Garforth, Leeds LS25 1 NB
United Kingdom
Phone: [phone], FAX: [phone]

HITACHI DENSHI, LTD. BEIJING OFFICE

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100004 Beijing Fortune Building
5, Dong San Huan Bei-LU, Chan Yang District,
Beijing, China
Phone: [phone] FAX: [phone]

Beijing Service Center

B19, Bei San Huan Middle Road Beijing China
Phone: [phone] FAX: [phone]

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