ANTENNA NVIS, for mobile Codan 3040 tuner
Valid Article
ANTENNA NVIS, for mobile Codan 3040 tuner
Definition
NEAR VERTICAL INCIDENCE SKYWAVE (NVIS) KIT
The NVIS kit is an add-on accessory for Codan's 3040 Antenna.
Short vertical whip antennas are poor radiators at high take-off angles. This makes short distance communications difficult,especially in hilly terrain. Making the whip longer and more horizontal improves the high take-off angle radiation efficiency.
Improves short-range communications
Transmit and receive paths over the range of 0 to 500 km will be greatly improved with the addition of the NVIS kit.
Easily attached to a variety of vehicles
The NVIS kit can be quickly and easily attached to a wide variety of vehicles. All fitting instructions are provided – no special tools are required.
Robust design
The robust design of NVIS has been proven by numerous field tests.
Note: The frequency range of the NVIS kit is 1.6 to 12 MHz.
Specifications
- Frequency range primary whip top
- Transmit operation: 2 to 30 MHz
- Secondary whip top
- Transmit operation: 2.5 to 30 MHz
- Receive-only (Scan mode/Free Tune Receiver mode): 250 kHz to 30 MHz
- Power rating 125 watts PEP (voice)
- Power consumption Static: 150 mA
- Tuning: 1 (12 V DC nominal — supplied from the transceiver)
- Input impedance 50 ohms: VSWR typically 1.5:1
- Temperature: –40 to +60°C
- Tuning speed typically 2 seconds
- Size and weight primary whip: 2.47 m; 5.8 kg
- Colour black, green
Instructions for use
Only for specific needs, validated by HQ Radio Telecom Referent.