Specifications 7
RF
Frequency Range:
FCC Frequency
Offsets:
Output Level:
Output Impedance:
A/V Ratio:
Frequency Stability,
Visual:
Aural Intercarrier
Frequency:
Spurious Outputs:
In-Channel C/N:
Broadband Noise:
VIDEO
Input level for 87.5%:
Input Impedance:
Frequency Response:
Video S/N:
L/C Delay:
Differential Gain:
Differential Phase:
175 mV rms minimum. 250 mV
rms nominal. Manual gain
adjustment with front panel
control and overmodulation
indicator.
10K Ohms, unbalanced.
75
µ
Sec.
40 Hz to 15 kHz, ±1.5 dB,
referenced to 75
µ
Sec
pre-emphasis curve.
1.5% maximum.
-60 dB minimum, referenced
to 25 kHz peak deviation.
37 dBmV for -15 dB A/V ratio.
45.75 MHz visual carrier,
41.25 MHz aural carrier. Loop
output is after SAW filtering.
40 dBmV (visual carrier).
75 Ohms.
115 VAC ±10%, 60 Hz,
25 WATTS.
0
0
C to +50
0
C, ambient.
19" W x 1.75" H x 11.8" D.
9 Lbs., 4 oz.
Video input, IF loop, 4.5 MHz In
and RF output are all type F.
Audio input is RCA phono.
AUDIO
Input Level for 25 kHz
Peak Deviation
@ 1 kHz Tone:
Input Impedance:
Pre-emphasis:
Frequency Response:
Total Harmonic
Distortion:
Hum and Noise:
4.5 MHz INPUT
(Internal Jumper
Change to Activate)
Input Level:
COMPOSITE IF
LOOP
IF Frequency:
Loop Level:
Loop Impedance:
GENERAL
AC Power Input:
Operating Temperature
Range:
Size:
Weight:
Connectors:
82 CATV channels, 54-550 MHz:
channels 2-78 and 95-99, and
Off-air broadcast channels 2-27.
Automatic: Zero, +12.5 kHz, or
+25 kHz offset, for aeronautical
channels.
+55 dBmV minimum, (typically
adjustable from +40 to
+55 dBmV).
75 OHMS, return loss of 12 dB,
nominal.
Audio Carrier -18 to -12 dB
referenced to video carrier,
adjustable.
Within ±5 kHz (FCC offset CH).
Within ±10 kHz (other CH)
4.5 MHz, ±2 kHz.
-60 dBc minimum, measured
at -15 dB A/V ratio and with
modulator output level of
+55 dBmV.
62 dB typical, 60 dB minimum.
-75 dBc typical @ ±12 MHz or
greater spacings. (Specified
levels are referenced to the video
carrier and measured in a
4 MHz bandwidth).
1 Vp-p ±3 dB, manual
gain adjust with front
panel control and
overmodulation indicator.
75 Ohms.
Flat ±1.5 dB from 30 Hz to
4.2 MHz.
60 dB, luminance weighted.
Within 50 nSec of FCC
predistortion (complies with
FCC rules, 76.605).
Less than ±5%
(10 to 90% APL).
Less than ±5 degrees
(10 to 90% APL).
