NEC PCN-1815SSQN/1Cx2, Instruction Manual, Page: 45 / 110

GWP-G22906
2-4-2 Specifications
(1) Visual Transmitter
Characteristics
625-Line
ITU-R
Standard-B/G
625-Line
ITU-R
Standard-D/K
625-Line
ITU-R
Standard-I
525-Line
ITU-R
Standard-M
Class of Emission C3F
Operating Frequency
Range
One designated VHF TV channel in Band
-
Ⅲ
Carrier Frequency
Stability
±1.0×10
7
−
over a period of 1 year
Load Impedance 50
Ω
with VSWR
≤
1.5
Input Level
Sync.
Video
0.3V
±
6dB
0.7V
Input Impedance
75
Ω
Return loss not less than 34dB up to 5MHz
75
Ω
Return loss not
less than 34dB up to
4.2MHz
AM Noise
−
50dB (p-p) or better
Periodic noise
Unweighted
continuous
random noise
−
52dB (r.m.s.) or better
Weighted
continuous
random noise
−
60dB (r.m.s.) or better
Unwanted Radiations
Spurious Radiation
Harmonic Radiation
60dB below the carrier and power not exceeding 12mW.
The same limits as for the spurious radiation
Linear Distortion
Amplitude vs
Frequency
Response
Refer to Fig. A
Refer to Fig. B
Refer to Fig. C
Refer to Fig. D
Group Delay vs
Frequency
Response
•
Transmitter
without RX
Precorrection
•
Transmitter
with
RX precorrection
(Deviation from
ideal curve)
up to 4.8MHz
±
50nS
up to 4.5MHz
±
50nS
4.5
∼
4.8MHz
±
100nS
up to 4.8MHz
±
50nS
up to 4.5MHz
±
50nS
4.5
∼
4.8MHz
±
100nS
up to 4.8MHz
±
50nS
up to 4.5MHz
±
50nS
4.5
∼
4.8MHz
±
100nS
up to 2MHz
±
50nS
at 3.58MHz
±
50nS
at 4.18MHz
±
100nS
up to 2MHz
±
50nS
at 3.58MHz
±
50nS
at 4.18MHz
±
100nS
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