Toner Cable DA User Manual
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 commercial 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 distortion 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 / DAR8633 / 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 amplifier 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.
Drake DA/DAR Series Distribution Amplifires
Telephone: Nationwide: Fax: E-mail: Internet:
215-675-2053 800-523-5947 215-675-7543 info@tonercable.com http://www.tonercable.com
09/07
©Toner Cable Equipment, Inc. Specifications Subject To Change Without Notice.
Telephone: Nationwide: Fax: E-mail: Internet:
Drake DA/DAR Series Distribution Amplifires
215-675-2053 800-523-5947 215-675-7543 info@tonercable.com http://www.tonercable.com
DA Series Standalone Power Doubling Distribution Amplfier Specifications
DA7533 DA7543 DA8632 DA8642 U/M
Frequency Coverage (forward path): 49 to 750 49 to 750 49 to 860 49 to 860 MHz
Frequency Coverage (return path): 5 to 36 5 to 36 5 to 36 5 to 36 MHz
Gain (forward path): 33 43 32 42 dB
Active Return Path Gain (minimum): 20 20 20 20 dB
Return Path Input Attenuator (adjustable): 0 to 10 0 to 10 0 to 10 0 to 10 dB
Noise Figure (maximum): 7 6.5 7.5 7 dB
Return Loss, Input and Output: 14 14 12 12 dB
Input Level
(maximum without using fixed input attenuator): +20 +10 +18 +7 dBmV
Optimum Input Level Range: +10 to +15 +0 to +5 +7 to +12 -3 to +2 dBmV
Forward Path Nonlinear Distortions
DA7533 / DA7543 (110 channel loading, +44 dBmV ouput per channel)
DA8632 / DA8642 (129 channel loading, +40 dBmV ouput per channel)
Composite Triple Beat: -58 -58 -60 -60 dB
Composite Second Order: -58 -58 -58 -58 dB
Cross-modulation: -62 -62 -64 -64 dB
Power Requirement: 26 VAC from supplied transformer with six foot amplifier-to-transformer cable
Power Transformer: Supplied transformer has 120 VAC/60 Hz ±10% input requirement at 35 W.
Output is 26.3 VAC with screw terminals for attaching power cable from amplifier.
Supplied 120 volt 3-wire line cord is six feet long.
Size: 10.25”L x 7.25”W x 2.75”D (26 x 18.4 x 7 cm)
Weight: 6 lbs, 12 oz (14.9 k), including AC adapter
DA Series Standalone Power Doubling Distribution Amplfier Specifications
DAR8642 DAR8633 DAR8618 DAR7542 DAR7533 U/M
Frequency Coverage (forward path): 54 to 860 54 to 860 54 to 860 54 to 750 54 to 750 MHz
Frequency Coverage (return path): 5 to 42 5 to 42 5 to 42 5 to 42 5 to 42 MHz
Gain: 42 33 18 42 33 dB
Noise Figure (maximum): 7 7.5 7.5 6.5 7 dB
Channel Loading: 129 129 129 110 110 channels
Output Level
(max per channel for specified distortion): +40 +40 +40 +44 +44 dBmV
Input Level (maximum without using fixed input attenuator): +7 +18 +22 +10 +20 dBmV
Optimum Input Level Range: -3 to +2 +7 to +12 N/A +0 to +5 +10 to +15 dBmV
Forward Path Nonlinear Distortions
Composite Triple Bear: -60 -60 -61 -58 -58 dB
Composite Second Order: -60 -60 -60 -58 -58 dB
Cross-modulation -64 -64 -68 -60 -60 dB
Power Requirement 115 VAC, 60 Hz, 24 Watts (Model DAR8618 - 18 watts)
Size: 19” W x 7.5”L x 1.75”D (48.3 x 19.1 x 4.5 cm)
Weight: 6 lbs, 4 oz (2.9 kg)
Specifications common to all models
Forward Gain Adjustment (except DAR8618): 10 dB minimum
Slope Control Adjustment (54 MHz): 10 dB minimum
Input/Output Impedances: 75 ohms
Return Loss, Input and Output: 14 dB
Monitor Port Levels Input and Output: -30 dB
Fixed Input Attenuator: Plug-in (SXP type) available
Fixed Input Equalizer: Plug-in (QSA type) available
Hum Modulation: -70 dB
RF Shielding: Leakage complies with FCC part 76
Operating Temperature: -20° to 60°C
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