Blonder tongue CMA-b Instruction Manual

INSTRUCTION MANUAL
CMA-b
Low Noise, Single Channel Preamplifier
Stock No. 4706

Description

The CMA-b is a low noise, single channel VHF preamplifier with excellent gain and the ability to accept a wide
range of input signal levels, making it ideal for CATV and MATV headend installations. The CMA-b mounts on
the antenna mast and power is duplexed on the downlead, eliminating a separate power supply lead.

Features

• Very Low Noise Figure
• Excellent Gain, Flat Response
• Excellent Adjacent Channel Overload Rejection
• Output Monitor Jack Permits Testing Without Service Interruption

Specifications (Typical)

Gain
CMA-b ch. 2 - 6:
CMA-b ch. 7 - 13:
CMA-b FM:
Bandpass Flatness
Channels 2 - 13:
FM:
Noise Figure
CMA-b ch. 2 - 6:
CMA-b ch. 7 - 13:
CMA-b FM:
Input Impedance:
Selectivity:
Minimum Recommended
Input for TASO Grade 1 (Excellent
Picture)
CMA-b 2 - 6 & 7 - 13:
©2007 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.
29 dB, 26 dB min
26 dB, 25 dB min
24 dB, 20 dB min
6 MHz +/- 0.25 dB
1 dB, 2 dB max.
Less than 3.5 dB
Less than 2.5 dB
2 dB, 3 dB max.
75 ohms
12 dB down 9 MHz
from center freq.,
10 dB min.
300 µv (-10 dBmv)
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
Maximum Input for Just-Perceptible Cross
Modulation
CMA-b ch. 2 - 6:
CMA-b ch. 7 - 13:
Maximum Input for Just-Perceptible
Intermodulation
CMA-b ch. 2 - 6:
CMA-b ch. 7 - 13:
Operating Ambient
Temperature Range: -40˚ F to 140˚ F
Output Monitor Jack: -20 dB (Backmatched)
Power Requirement: -21 VDC at 40 ma
Connectors (75 ohms)
Input: Type F, Output, Type F, Output Monitor: Type F
Housing:
Dimensions:
Shipping Weight:
One Jake Brown Road
Old Bridge, NJ 08857-1000 USA
www.blondertongue.com
36 dBmv
28 dBmv
33 dBmv
26 dBmv
Cast Aluminum
5" x 3-7/8" x 2-5/16"
1 lb., 5 oz.
651094300M