The 4002 is designed specifically for short vehicular whip antennas, and is a rapid, highly efficient, reliable tuner.
The 4002 is optimised to tune a 1.6m whip from 2.5-30MHz with a VSWR typically of 1.5:1 or better.
An optional 800mm riser enables operation from 2 to 30MHz.
The unique tuning algorithm provides a memory-tune location for all frequencies between 2-30MHz.
The memory tuning time of <130mS makes the 4002 the ideal tuner for networks using ALE and/or frequency hopping, with tun-ing times for new frequencies average less than 1 second.
The 4002 is extremely rugged, and meets MIL-STD 810F for
waterproofing (IP68), shock, vibration and dust ingress.
Available antenna bases are shown on Page 3.
Figure 1. Connector end of tuner. From the left, the connectors are earth, RF and control.
Figure 2. HV end of tuner.
Figure 3. Top view of tuner.
Fig 4. Flange mount base
Fig 5. Single hole mount base
Fig 6. NATO Base
The following plots are of VSWR measurements taken of the actual vehicle
installation shown on the front page, using a Codan NGT transceiver.
This is considered the optimum placement for an HF mobile antenna.
Near Vertical Incidence Skywave (NVIS) operation has a general upper limit
of 15MHz, and the NVIS whip package is designed accordingly.
Specifications
Electrical
Frequency range
1.6m whip: 2.5-30MHz
2.4m whip: 2-30MHz
Power rating
125W PEP
Power consumption
Tuned
Typically 400mA
Tuning
<800mA
Input Impedance
50Ω
VSWR
Typically 1.5:1
Tuning speed
New frequency
Average < 1 second
Memory tuning
<130mS
Memory channels
Unlimited - unique non-linear
memory allocation
Efficiency
15 to 95%, whip-length de-pendant
Mechanical
Temperature Rating
-40 to +80° C
DC operating range
10 to 16VDC
Protection
Open circuit antenna
Short circuit antenna
Over temperature
High VSWR
Voltage transients
EMC
Compliant
Shock and vibration
MIL-STD-810F (Dust, vibra-tion, water ingress to IP68)
Case pressure-equalisation device fitted
Dimensions
300mm L x 250m W (including connectors) x 95mm H
Weight
2.4kg
Control cable
Codan 3040/9350
Connectors
RF: N socket
Control: 6 pin bayonet (Mil-spec)
Case construction
Bespoke diecast aluminium alloy
Colour
White or military green
Ordering Information
01-1004-001
Flange mount base Standard package
01-1006-001
Single hole mount base Standard package
01-1008-001
NVIS option for Flange mount/Single hole Standard pack-ages
01-1005-001
Flange mount base Extended package
01-1007-001
Single hole mount base Extended package
02-4018-001
NVIS option for Flange mount/Single hole mount Ex-tended packages
02-4016-001
1.55m fibreglass whip option for both Extended pack-ages, replacing the supplied stainless steel whip
02-2174-001
Side-mount bracket option for all packages
46-1010-001
N Plug to UHF Socket Adapter
Standard packages include the 4002, base, spring, stainless steel whip, RF and control cables.
Extended packages add an 800mm riser to extend the lower frequency range.
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