Toner Cable DA Series Distribution Amplifiers - Manual

Telephone: Nationwide: Fax: E-mail: Internet:
09/07
Dr
ak
e D
A/D
AR Series Distribution Amplifir
es
215-675-2053 800-523-5947 215-675-7543 [email protected] http://www.tonercable.com
969 Horsham Road
Horsham, Pennsylvania 19044 USA
DA Standalone Distribution Amplifiers
DAR Rack Mounted Distribution Amplifiers
The R.L. Drake model DA7533, DA7543, DA8632, and DA8642 broadband
distribution amplifiers are designed for indoor use in both residential and com-
mercial buildings where RF signal distribution in the frequency range of 49 to
750 or 860 MHz is required. Each model incorporates a push-pull hybrid input
preamp and a power doubled hybrid output amplifier to provide a very low dis-
tortion signal for a cable television “drop”, the output of an SMATV headend, or
a small CATV headend. The Gain and Slope control both have a range of 10
dB minimum and operate between the preamp hybrid and the output hybrid to
maintain a low noise figure over a wide range of gain and slope settings.
Double-sided plated through hole, glass epoxy printed circuit boards, and SMT
construction are used for low losses and maximum reliability.
The unit features three user selectable return path choices (internal jumper
selectable):
1) No return path
2) Passive return path with variable 10 dB attenuator
3) Built in active return path
DA7533 / DA7543 / DA8632 / DA8642
Standalone Power Doubling Distribution Amplfier
DAR8642 / DAR 8633 / DAR8618 / DAR7542 / DAR7533
Rack Mounted Power Doubling Distribution Amplfier
The R.L. Drake model DAR8642, DAR8633, DAR8618, DAR7542, and DAR7533 broadband distribution amplifiers are
designed for indoor headend use in both residential and commercial buildings where RF signal distribution in the frequency
range of 54 to 750 or 860 MHz is required.
Each model incorporates a push-pull hybrid input preamp (except the DAR8618) and a power doubled hybrid output ampli-
fier to provide a very low distortion signal for launch amplifier applications in the ouput of an SMATV and CATV headend.
The Gain and Slope controls both have a range of 10 dB minimum and operate between the preamp hybrid and the output
hybrid to maintain a low noise figure over a wide range of gain and slope settings. The DAR8618 has a power doubled
output hybrid with no input preamplifier and no adjustable gain and slope controls.
All models have a provision for optional fixed input attenuators and equalizers.
Double-sided, plated through hole, glass epoxy printed circuit boards, and SMT contstruction are used for low losses and
maximum reliability.
All DAR series models include a built-in diplexer filter. This allows the return path energy that is present at the ouput port
of the DAR to be separated from the DAR output and passed to the return path output port.
Input and output test connectors are provided for convenient monitoring of the signal path. The amplifier circuitry is
designed for maximum stability, low distortion, low noise figure, and is protected in a rugged aluminum housing.