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STARHEAD SWA-2003

MODULADOR FIJO MODELO BAVM-860-SAW

Economical Audio/Video
Modulator ~ BAVM-860SAW
The Blonder Tongue BAVM-860SAW is an economical commercial quality
TV modulator. It provides a +55 dBmV RF output on any specified CATV channel
from 2 to 135 (54 to 860 MHz). HRC and IRC frequency plans are also available.
The BAVM-860SAW is ideal for placing A/V program sources such as satellite
receivers, VCR?s, DVD?s, cameras or TV demodulators onto standard 6 MHz NTSC
TV channels for broadband distribution.
The BAVM-860SAW features IF SAW filtering with built-in FCC group delay pre-distortion
assuring excellent adjacent channel performance and color operation. The modulator
complies with FCC 21006 with +/- 5 KHz visual carrier stability and required frequency
offsets on all aeronautical channels. For BTSC stereo applications, a field-defeatable audio
pre-emphasis network is provided making the BAVM-860SAW compatible with any
out-board stereo generator that provides a composite baseband output. A -30 dB output
test point and all user controls are provided on the front panel.

BAVM-860SAW. FEATURES

. CATV Channel?s 2 - 135 (54 to 860 MHz)
. Standard, IRC and HRC Frequencies
. PLL Synthesized Frequency Control for Exceptional Stability
. +55 dBmV Output
. SAW Filtered for Superior Adjacent Channel Performance
. Built-in FCC Group Delay Pre-distortion
. FCC 21006 Compliant
. -90 dB Out of Band Carrier to Noise
. BTSC Stereo Compatible (Requires a Stereo Generator)
. UL Listed
. 3 Year Limited Warranty
. Rear Panel Accessory AC Outlet

ESPECIFICACIONES
RF
Frequency Range: CATV Channels 2 to 135
Output Level: 55 dBmV, Min
Output Level Range:
15 dB, continuously adjustable by front
panel Output Level Control
Audio/Video Carrier Ratio Control:
-7 dB to -20 dB,
Frequency Tolerance:
?10 kHz - standard channels
?5 kHz FCC 21006 Offsets
Audio Carrier Frequency Setting:
?1 kHz, Max
4.5 MHz above video carrier
RF to Video Response from Fv -0.5 MHz to
Fv +4.2 MHz: 1 dB P/V
Broadband Noise -90 dBC
Spurious Output in 50 . 860 MHz Range
@ +55 dBmV Output: -60 dBc
Output Match (Return Loss): 12 dBc
Vestigial Sideband Response:
@Channel Edge -20 dB
@Adjacent Channel -40 dB
Video
Input for 87.5% Modulation:
0.7V to 2.5 V P-P
Video Input Return Loss: 18 dB
Video Carrier-To-Noise Ratio in 4 MHz
Bandwidth: 62 dB
P-P Video to 60 Hz RMS Hum Ratio: 60 dB
Differential Gain at 87.5% Modulation: ≤ 5%
Differential Phase at 87.5% Modulation: ≤ 5?
Group Delay: 170 ? 50 nS
Audio
Input Impedance: 10K Ohms, Unbalanced
Input for 25 KHz Peak Deviation:
140 mV RMS
Audio Frequency Response:
?1.0 dB
(50 Hz to 15 KHz ref to std 75 msec
pre-emphasis)
4.5 MHz Intercarrier Stability: ?5.0 kHz
General
Power Requirements:
105-130 VAC, 60 Hz, 10.5 W
Temperature Range: 0 to 50 degrees C
Mechanical
Dimensions: 19 x 13/4 x 3, WxHxD, inches
Mounting: 19? single rack space
Line Cord: 3 wire grounded, 3 wire convenience
outlet
Finish: Plated
Shipping Weight: 4 lbs. (approx)
Connectors
Audio In: ?F? Type
Video In: ?F? Type
RF Out: ?F? Type
RF Output Test - 30 dB: ?F? Type
. Specifications The BAVM-860SAW features IF SAW filtering with
built-in FCC group delay pre-distortion assuring
excellent adjacent channel performance and color
operation. The modulator complies with FCC 21006
with +/- 5 KHz visual carrier stability and required
frequency offsets on all aeronautical channels. For
BTSC stereo applications, a field-defeatable audio
pre-emphasis network is provided making the
BAVM-860SAW compatible with any out-board
stereo generator that provides a composite baseband
output. A -30 dB output test point and all user
controls are provided on the front panel.
BAVM-860SAW
6/03