100A 2m Low-Noise Masthead Preamplifier
The low-noise and effective preamplifiers of the Super-Amp series are available for the
amateur radio bands 6 m, 2 m, 70 cm, 23 cm and 13 cm. All models are equipped with
low-noise GaAs-FET pre-stages which are safeguarded against HF by a an effective
protective circuit.
To suppress unwanted signals two filters are used in the SP-13. Filtering in the SP-13
is done by etched Microstrip-Filters on the ceramic board. All other models use high-
value Helix filters to ensure the quality also of this SSB product.
The Super-Amp amplifiers can be operated alternatively with a remote or direct feed.
When a power amplifier is used, we recommend our Sequence Controller DCW 2004 B.
This ensures a timely sequential receive/transmit switchover, controlling the relays with-
out HF. The operating voltage is supplied by the coaxial cable (remote power supply).
The Super-Amp amplifiers are equipped with an UV-resistant, weatherproof housing and
N-sockets. Hot-dip galvanized clamps and installation material are part of the purchased
parts package.
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Technical Data
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Frequency range/MHz
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50-52
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144-146
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430-440
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1250-1300
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2300-2400
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Noise figure
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0,9 dB
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0,9 dB
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0,9 dB
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0,9 dB
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0,9 dB
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Amplification
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10-20 dB*
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10-20 dB*
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10-20 dB*
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20 dB
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20 dN
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Switching power w. HF-Vox
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100 W
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100 W
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100 W
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10 W
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10 W
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Permissable power
w. DCW-2004 (SSB)
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500
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750
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500
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100
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50
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Permissable power
w. DCW-2004 (FM)
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100
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500
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300
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100
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25
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Insertion loss
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0,2 dB
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0,1 dB
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0,3 dB
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0,4 dB
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0,7 dB
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Operating voltage
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13,8 V
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13,8 V
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13,8 V
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13,8 V
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13,8 V
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Current consumption
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300 mA
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250 mA
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250 mA
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400 mA
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max. Mast diameter
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58 mm
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58 mm
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58 mm
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58 mm
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58 mm
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Recommended remote powering coupler
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DCW 2004 B
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DCW 2004 B SHF
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*) Amplification is adjustable internally or by a variable attenuator between 10-20 dB.
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