HF AntennasAAC 1/...

Active Receiving Antenna for 10 kHz - 110 MHz for Communication Purposes


  • This active receiving antenna has been designed for professional use and special emphasis has been placed on obtaining a large dynamic range with excellent cross and intermodulation properties, a low noise figure and a secure protection against RF-overload and violent nearby discharges.
  • The AAC 1/... can be used either where superb listening quality is required or where a high RF-density environment exists, as for instance in connection with MF and HF duplex operation onboard ships, where nearby transmitting antennas may cause excessive field strengths. For complete safety the antenna should, however, not be mounted closer than 15 metres from transmitting antennas.
  • The antenna consists of a high-capacitance glass fibre antenna element and an amplifier built into the antenna mount. The amplifier provides the necessary impedance matching between the high-impedance antenna element and the 50 Ω downlead cable over an extremely wide bandwidth.
  • The necessary supply voltage (12 – 15 V DC) for the amplifier is delivered through the downlead coaxial cable from the junction box with mains power supply, type JB 230 (230 VAC) or JB 115 (115 VAC), which separates DC and RF-signals. Up to 200 m of RG 213/U coaxial cable can be used between antenna and junction box with only minor degrading effects.
  • The earthing wire (see drawing) ensures a low loss connection to ground for RF-signals, and thereby also prevents noise pick-up from the ship’s installations running on the outside of the coaxial cable. As the earthing wire is AC-coupled, electrolytic corrosion is effectively prevented.
  • By careful choice of materials, the AAC 1/... is designed to withstand the roughest of climate conditions, ensuring many years of trouble-free service.
  • Extended amplifier frequency range makes it possible also to receive FM-radio (88 – 108 MHz).


Model AAC 1/...
Frequency 10 kHz - 110 MHz
Antenna Type Broadband active receiving antenna for communication purposes
Polarisation Vertical
Pattern Type Omnidirectional
3 dB Beamwidth, H-Plane Omnidirectional
Output 2. Order Intercept point (OIP2) OIP2 > 40 dBm
OIP3 > 27 dBm
Antenna Factor Typ. 0.25 mV output in +50 Ω by a field strength of 1 m V/m
Impedance 50 Ω
1 dB Compression Point Typ. occurring at a field strength of 1.5 V/m
1 dB Quieting Typ. occurring at a field stength of 1 V/m form an interfering signal
VSWR < 2.0:1
Power Supply 12 - 15 V DC (with JB 230 or JB 115)
Current Consumption Approx. 60 mA
Cross Modulation 40 dB cross modulation attenuation typically occurring at field strength of 0.7 V/m from an interfering source
Maximum Field Strength 90 V/m
Amplifier Protection Spark gap
Connection(s) N(f)
Materials Shroud: Glass fibre and chromed brass
MA housing: Lexan amd chromed brass
Colour Marine white
Dimensions 120 x 130 x 59 mm / 4.72 x 5.12 x 2.32 in. (connectors included)
Wind Area 0.0259 sq. m / 0.28 sq. ft
Wind Load 28.8 N (160km/h)
Dia. At Top End 7 mm / 0.28 in.
Dia. At Bottom End 10 mm / 0.39 in.
Height 920 mm / 36.22 in.
Weight 0.6 kg / 1.32 lb
Mounting On flat surfaces such as deck or roof or on 30 - 44 mm mast tube using accessory item SM-MAS (not included)
Operating Temperature Range -30°C to +60°C

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Procom AAC 1

  • Model: Procom
  • Beschikbaarheid: Op voorraad
  • € 489,00

  • Excl. BTW: € 404,13

Tags: Procom