300vmf, Commercial video modulator, Specifications – Toner Cable 300VMF+ Commercial Video Modulator User Manual
Page 2
Specifications Subject To Change Without Notice
Rev 12-11
©Toner Cable Equipment, Inc.
969 Horsham Road
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Horsham, Pennsylvania 19044 USA
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Phone: 215-675-2053 Fax: 215-675-7543
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RF
Frequency Range:
54 through 552 MHz.
Channels Available:
CATV Channels 2 through 78 and 95 through 99
FCC Frequency Offsets:
All aeronautical channels offset positive with a tolerance of ±5 kHz.
Output Level:
+55 dBmV minimum, (typically adjustable from +43 to +55 dBmV).
Output Impedance:
75 Ohms; return loss of 14 dB nominal.
A/V Ratio:
Audio Carrier -20 to -12 dB referenced to video carrier, adjustable.
Frequency Stability, Visual:
Within ± 10 kHz of assigned channel frequency. Within ±5 kHz of
assigned channel frequency on FCC offset channels.
Aural Intercarrier Frequency: 4.5 MHz, ± 5 kHz.
Spurious Outputs:
-60 dBc minimum, measured at -15 dB A/V ratio and with modulator
output level of + 55 dBmV.
In-Channel C/N:
Better than 60 dB.
Broadband Noise:
-95 dBc @ ± 30 MHz or greater spacings. (Specified levels are referenced
to the video carrier and measured in a 4 MHz bandwidth.)
Video
Input level for 87.5%
modulation:
1 Vp-p ± 3 dB, manual gain adjust with front panel control.
Input Impedance:
75 Ohms, return loss of 18 dB minimum.
Frequency Response:
Flat ± 2 dB from 30 Hz to 4.2 MHz.
Video S/N:
60 dB minimum, luminance weighted.
L/C Delay:
Within 50 nanoseconds of 0 nanoseconds L/C delay (complies with
FCC rule 76.605).
Differential Gain:
Less than ± 5% (10 to 90% APL).
Differential Phase:
Less than ± 5 degrees (10 to 90% APL).
Audio
Input Level for 25 kHz
Peak Deviation:
175 mV rms minimum. Manual gain adjustment with front panel control.
Input Impedance:
10K Ohms, unbalanced.
Pre-emphasis:
75 m Sec. (may be disabled with internal jumper change)
Frequency Response:
40 Hz to 15 kHz, ±1.5 dB, referenced to 75 m Sec. pre-emphasis curve.
4.5 MHz Intercarrier Stability: ±5 kHz, 0 degrees Celsius to + 50 degrees Celsius.
Total Harmonic Distortion:
1.5% maximum.
Hum and Noise:
-60 dB minimum, referenced to 25 kHz peak deviation.
General
AC Power Input:
115 VAC ± 10%, 60 Hz, 10 Watts.
Operating Temperature Range: 0° to 50° Celsius, ambient.
Dimensions:
1.75 inches Height x 19 inches Width x 4.0 inches Depth.
Weight: 3.6
lbs.
Connectors:
Video input, Audio Input, monitor and RF output are all type F.
Specifications
300VMF+
Commercial Video Modulator