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- RF SYNTHESIZED OUTPUT
- SELECTION BY CHANNEL OR BY FREQUENCY
- EUROCONNECTOR
The GV-298 video generator has exceptional builts-in features; the
newest trends of modern technology have been applied in its design.
Its application field is reaching every service where a professional
featuring idea is requested, to fulfil top requirements both in the
synchronism stage and the colour and radiofrequency one.
Therefore, this device, easy to operate and strong, is especially
indicated in fulfilling the closest needs in Technical Assistance Services
(TAS). With the GV-298, ambivalence of TAS' professionals will find a
first class partner both in workshop tasks and field repairs and installations.
The GV-298 is provided with 8 different patterns, to make basic
settings in any receiver as well as to sense any abnormality by overviewing
a picture. Furthermore, the GV-298 includes four additional functions, to
be added or cleared in every pattern, at will. These controls refer to
picture interlacing, chroma subcarrier, sound and PAL commutation.
Synthesized radiofrequency stage range covered is from 37 MHz to
865 MHz. This is used to sense any deficiency of the tuner and/or the IF
amplifier of the analyzed receiver. A three-cell attenuator is used to
attenuate up to 60 dB maximum, in 20 dB steps. Frequency (5 digit
resolution), pattern and selected channel are reflected in the 16 character
digital display.
There is an Euroconnector output for a direct testing of built-in
devices, as well as a special output to synchronize the oscilloscope.
Synchronization can be achieved by line or by frame.
Sound and radiofrequency systems are designed so as to cover the
CCIR's B, G and H standards (CCIR). Moreover, there is a version for
DK, I and N systems, delivered upon request.
Colour bars
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Red screen
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Green screen
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Blue screen
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Grey screen
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100% White pattern
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Crosshatch with circle
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Anti-PAL patterns to
clear R-Y switching
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Dots
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Checkerbord
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SPECIFICATIONS
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Standard
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PAL CCIR B,G,H (DK,I,N upon request)
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Video carrier
Frequency
Tuning
Output amplitude
Attenuator
Connector
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Synthesized, 37 to 865 MHz
By frequancy: 50 kHz steps
By channel:CCR
80 dBµV ±3.5 dB (synchronism peak).
60 dN in 20dN steps
NBS (75Ohem)
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Digital
Video modulation
Modulation index
Video/sound ratio
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Digital, 16 characters, with frequency indication
(5 dig.), channel, standard TV, program, pattern and sound system.
AM negative, double sideband
85%
17 dB
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Sound modulation
Carrier frequency
Drift
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FM, internal modulation at 1 kHz
5.5 MHz, ON/OFF selectable
30 kHz
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Test patterns
Video OutPut
Connector
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100% white pattern
Grid with an electronic circle
Dots
Checkboard
Colour bars
Red pattern
Green pattern
Blue pattern
Anti-PAL patterns to clear R-Y switching
1 Vpp, positive polarity
BNC and EUROCONNECTOR (75 Ohem)
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R-G-B outputs
Connector
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0.7 Vpp
EUROCONNECTOR (75 Ohem)
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Tigger output for oscilloscope
Signal
Connector
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Vertical + Horizontal
BNC
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L.F. signal
Connector
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250 mVpp at 1 kHz
EUROCONECTOR (10 kOhem)
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Mains Voltage
Consumption
Dimensions
Weight
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AC 110-125-230-240 V ± 10 % /50-60 Hz
8 W
W.102 x H.90 x D.241
2.25 kg
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ACCESSORIES
Included: Instruction manual, BNC/TV coaxial cable, mains cable, spare fuse
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VERSIONS
GV-298
GV-298/2
GV-298/4
GV-298/6
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PAL B,G CCIR channels
PAL D,K OIRT channels
PAL I CCIR channels
PAL N FCC channels
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