Mark 32ALC is an omni-directional wide band antenna (0.1-26.5 and 40-890 MHz) TV-FM-AM, for maritime purposes. It is based on a construc-tion of loop antennas coupled to four band amplifiers three of which have individual automatic level control units - ALC’s.
The ALC’s have very high dynamic range,and keep the antenna free from intermodulation even in the vicinity of high power transmitters.
High efficiency suppression filters prevent interference from VHF telephone and AIS transmitters.
Mark 32ALC is made of ABS plastic and filled with polyurethane foam. Mounting base in saltwater proof special alloy and bolts in stainless acid proof steel. Mark 32ALC is tested by “Det Norske Veritas” for the same approval as for radar equipment.
The advantages of Mark 32ALC compared to a Yagi antenna system are:
• Automatic level control-ALC .
• Rigid, non-corrodible, maintenance free construction
• Small dimensions and easy to mount.
• Omni-directional, no adjustments.
• Replaceable amplifier.
• Integrated VHF/AIS suppression filters.
TECHNICAL SPECIFICATIONS
| Frequency range: | 0.1-26.5 MHz, 40-110 MHz, ALC > 60 dB 170-230 MHz, ALC > 50 dB 470-890 MHz, ALC > 35 dB(470-700 MHz) ALC > 25 dB(700-890 MHz) |
Gain: | >12 dB@0.1-26.5 MHz >25 dB@40-110, 170-230 MHz >25 dB@470-890 MHz <-10 dB@156 MHz (Radio telephone) <-10 dB@162 MHz (AIS) |
| Return loss: | >16 dB@40 MHz -1.5 dB/octave |
| Noise factor: | <4.5 dB |
| ALC limited output level: | 95-100 dBμV |
| Intermodulation: | CTB < -60 dBc |
Output impedance: | 75 ohm |
| Connector: | BNC male |
| Supply voltage: | 15 V DC |
| Current consumption: | approx. 200 mA |
| EMC: | EN 50082-1, 55024-2, 55024-4 |
| Operation temp. range: | -40 - +70°C |
| Weight: | 3 kg |
| Material: | White ABS |
| Approvals: | DNV’s Standard for Certification No 2.4, chapter 3.6.2, Sweep Sine Test, vibration strain class C |
| Protection: | IP68, housing only (Excl BNC connector |
