Toner Cable VM2862 Frequency Agile Modulator User Manual
Page 2
RF
Frequency Range:
54-864 MHz standard CATV channels 2-135
Broadcast, HRC, and IRC channel plans available by internal jumper.
Output Level:
+60 dBmV minimum, 12 dB minimum adjustment range. Note: If an output level of less than +50
dBmV is required, add an attenuator of the appropriate value to the modulator output.
Output Impedance:
75 Ohms, 12 dB return loss within output filter passband.
A/V Ratio:
Audio carrier -25 to -12 dB referenced to video carrier, adjustable.
Frequency stability:
±5 ppm. All oscillators locked to the same internal reference.
Amplitude stability:
±1 dB.
FCC Frequency Offsets:
Automatic, positive.
Spurious Outputs:
-60 dBc measured at -15 dB A/V ratio and with modulator output level of +60 dBmV,
5 MHz to 1000 MHz.
Phase Noise:
-85 dBc measured at 10 KHz offset.
Output Filter Bands:
54 MHz to 258 MHz, 258 MHz to 462 MHz, 462 to 660 MHz, and 660 MHz to 864 MHz.
Broadband Noise:
-80 dBc, 4MHz bandwidth, +60 dBmV output level, ±18 MHz offset within output filter passband.
-90 dBc, outside of output filter passband, output filtered into 4 approximately 200 MHz wide bands.
Video
Input Level:
1 Vp-p ±3 dB manual gain adjust with LED front panel modulation indicators.
Input Impedance:
75 Ohms, return loss of 25 dB.
Frequency Response:
20 Hz to 4.2 MHz, ± 1.0 dB with 4.5MHz trap off.
20 Hz to 4.1 MHz, ± 1.0 dB with 4.5MHz trap on.
In-channel C/N:
65 dB.
Differential Gain:
± 3%.
Differential Phase:
± 3 degrees.
L/C Delay:
± 50 nS of FCC predistortion with 4.5 MHz trap off,
-20 + 80 nS of FCC predistortion with 4.5 MHz trap on.
Monaural Audio
Input level:
250 mVrms to 2.5 Vrms, manual gain adjustment with LED modulation indicators.
Input Impedance:
10 K Ohms, unbalanced.
Pre-emphasis: 75
µS.
Frequency Response:
50 Hz to 15 kHz, ±1 dB.
Total Harmonic distortion:
0.5% maximum.
Signal to Noise Ratio (S/N):
65 dB.
BTSC MTS Stereo Audio:
(applies only to model VM2862)
Input level:
250 mVrms to 2.5 Vrms, manual gain adjustment with LED modulation indicators.
Input Impedance:
10 K Ohms, unbalanced.
Stereo Channel Separation:
30 dB, 50 Hz to 12.5 kHz
25 dB, 12.5 kHz to 14 kHz.
Frequency Response:
±0.5 dB, 50 Hz to 14 kHz.
Total Harmonic distortion:
0.5% maximum.
Signal to Noise Ratio (S/N):
65 dB.
SAP Audio -
(Field Installed Option)
(applies only to model VM2862)
Input level:
250 mVrms to 2.5 Vrms, manual gain adjustment and LED modulation indicator on rear panel.
Input Impedance:
10 K Ohms, unbalanced.
Total Harmonic distortion:
1% maximum.
Signal to Noise Ratio (S/N):
80 dB.
EAS Input
Input level:
+30 dBmV, ±1 dB (visual carrier).
Input Impedance:
75 Ohms, 20 dB return loss.
Auto Switching Level:
+20 dBmV.
Isolation:
60 dB.
General
AC Power Input:
115 VAC, ±10%, 60 Hz, 23 watts (VM2860), 28 watts (VM2862),
Fuse:
1/2 Amp Slo-Blo 5 x 20 mm.
Operating Temperature Range:
0° to 50° C, ambient
Cooling:
Internal 1.85 CFM fan allows operation in the rack without air space between units.
Radiated Emissions:
FCC Part 15
Size:
1.75"H x 19"W x 11.25"D
Weight: 8.5
lbs.
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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VM2862 Agile BTSC MTS Stereo Video Modulator
VM2860 Agile BTSC MTS Stereo Video Modulator
Specifications