最初由 bg1cat 发布
能简单介绍一下吗？价格，指标等。谢谢
据说是 10000元左右。
codan 9350 automatic tuning whip antenna
the 9350 antenna is constructed to withstand the severe environmental conditions usually experienced in some of the more remote areas of the world. it meets or exceeds the shock and vibration requirements for mil-std-810.
the main antenna section is constructed of fibreglass reinforced nylon. this provides a weatherproof housing for the control and tuning devices, which are fitted inside. it is mounted on an anti-vibration base that incorporates rubber mounts. these are designed to withstand the conditions likely to be met while travelling on unsealed roads or tracks. the 9350 antenna will operate in a broad range of temperatures.
typically, the 9350 takes only a few seconds to tune to any frequency. it will seek the optimum tuning point for all operating conditions-this ensures the best communications possible. the 9350 antenna has a comparably high rate of radiation efficiency. it is rated for maximum voice power of 125 watts pep. the whip antenna uses a microprocessor controlled stepper motor to provide continuous tuning to any required frequency over the transmit/receive operating range of 2-30 mhz.
two whip top sections are provided with the 9350 antenna. the standard or primary whip is a wire that is encased in a polyurethane covered fibreglass rod. it is designed to withstand substantial flexing and hard knocks and operates over the full frequency range of this antenna. the shorter, secondary whip is manufactured from stainless steel. it is designed for use as a backup in emergency situations when the standard whip has been damaged. this whip is only suitable for operation over a transmit frequency range of 2.5-30 mhz and is less efficient than the primary whip.
when in scan or free tune receiver mode, a broadband amplifier is activated. this makes the antenna sensitive to even the weakest signals over the entire frequency range.
technical specifications
nvis kit
the near vertical incidence skywave (nvis) kit is an add-on accessory for the codan 9350 antenna. short vertical whip antennas are poor radiators at high take-off angles. this makes short distance communications difficult, especially so in hilly terrain. making the whip longer and more horizontal improves the high take-off angle radiation efficiency.
key features
improves short-range communications
transmit and receive paths over the range of 20-500 kms will be greatly improved with the addition of this kit.
easily attached to 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.
additional features
rugged design
the tough design of the nvis has been proven through extensive field testing.
easy to transport
it is supplied in a canvas bag for ease of transportation.
note: the frequency range of the nvis kit is 1.6-12 mhz.
frequency range
primary whip top - transmit operation: 2-30 mhz
secondary whip top - transmit operation: 2.5-30 mhz
receive-only (scan mode/free tune receiver mode): 250 khz - 30 mhz
power rating
125 watts pep (voice)
power consumption
static: 150 ma
tuning: 1 a
(12 v dc nominal-supplied from the transceiver)
input impedance 50 ohms: vswr typically 1.5:1
temperature -40_c to +60_c
tuning speed 5.5 seconds over full range 2-30 mhz (typically 2 seconds for generally used operating range e.g. from 3-7 mhz or 7-22 mhz)
size and weight primary whip: 2.47 m, 5.8 kg
