4011 Automatic antenna tuner
Land mobile and base station installations operation
The Barrett 4011 automatic antenna tuner is designed for operation in both land mobile and base station installations. Housed in a fully weatherproof enclosure the 4011 will efficiently tune long wire antennas up to a length of 10 metres, wire loop antennas or whip antennas over a frequency range of 2 to 30MHz. Tuning is rapid, typically less than one second from the first time RF is applied, either whilst the operator is talking or when the “Tune” control is activated on the transceiver.
The 4011 tuner features a memory facility that stores the configuration required to tune to a frequency. On any subsequent use of that frequency the 4011 reconfigures to the stored settings in typically less than 130 milliseconds. Following initial tuning the antennas VSWR is monitored. If any significant variation occurs the 4011 will re-tune the antenna automatically.
Features
The 4011 is supplied complete with coaxial/control cable having an overall length of 6 metres (P/N 4019-00-02). The cable is a composite design incorporating coaxial, power supply and control cables.
Automatic link establishment
Fully backwards compatible 2nd generation (2G) ALE based on MIL-STD-188-141B (JITC certified) and FED-STD-1045 is available. For superior fast link setup (FLSU), robust packet data and greater penetration on noisy channels, 3rd generation (3G) ALE based on STANAG 4538 is optionally available.
Other features:
- 2 MHz to 30 MHz frequency coverage
- Efficient - tuned on each frequency
- Memory channel operation
- ALE compatible
- Frequency-hopping compatible
General
Frequency range
2 - 30MHz continuous
Input impedance
50 ohms
Power rating
150W PEP
DC input requirements
+13.8 V DC (Derived from 2000 or 4000 series transceiver via integral RF control cable)
Power consumption
Tuned Typically 400mA
Tuning <800mA
Tuning time
First tune - Less than 1 seconds - typical
From memory - Less than 130 mS - typical
Memory addresses
Unlimited
Physical characteristics
Case construction
Diecast aluminium alloy
Colour
Black
Weight
2.4kg
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