DAVIS 7654OV Скачать руководство пользователя страница 7

5

Yagi (Directional) Antenna 

The Yagi antenna includes the directional antenna and mounting hardware:

External Antenna Types

The Omni and Yagi antennas transmit and receive with two different radiation patterns. 

The Davis long-range omni antenna transmits and receives data in a radiation pattern of 
360

°, 

the same radiation pattern as a standard Vantage Pro2 dipole antenna. The Yagi 

antenna transmits and receives data packets in a 50

°

 beam of the front of the Yagi 

antenna. The antenna is limited in the angle and direction it can transmit and receive 
packets, but it increases the distance between transmitter, repeater, and receiver 
proportionally.
All wireless Davis Instruments stations and standard wireless repeaters come equipped 
with standard dipole antennas that have an omni-directional radiation pattern.
It is important to remember that each long-range repeater will have two antennas. You 
can think of one as the “microphone,” to receive data; and the other as the “speaker” to 
transmit data. The two antennas do not have to be the same. It is important to keep in 
mind which is the “microphone” and which is the “speaker.”

Yagi Antenna

5/16"

U-Bolts

48"

Antenna

Cable

Flat Washer

Lock Washer

Nut

Boom

Directors

External Antenna Radiation Patterns

(radiation pattern 360   )

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Omni-Direction Antenna

(radiation p/- 25  ) 

Yagi Antenna

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(Top View)

Содержание 7654OV

Страница 1: ...w davisnet com Long Range Repeater USER MANUAL Installation Addendum DYLV QVWUXPHQWV LDEOR YHQXH D ZDUG 8 6 ZZZ GDYLVLQVWUXPHQWV FRP R For Vantage Pro2 Vantage Pro2 Plus Vantage Vue Envoy8X Weather En...

Страница 2: ...tion between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technicia...

Страница 3: ...Repeaters and is intended to be used in conjunction with the Wireless Repeater Installation Manual The table below shows the location of the information required to install and maintain your Long Ran...

Страница 4: ...has the following contents Transmitter DIP Switches Repeater DIP Switches Repeater Test Switch TX LED Status LED Battery Compartment Solar Power Tab Receiving Antenna Cable AC Adapter Transmitting Ant...

Страница 5: ...antenna Receiving Antenna Cable Connects the repeater to the external antenna receiving a station or repeater signal Additional Tools for Setup In addition to the tools required for standard wireless...

Страница 6: ...ur network architecture requirements Note Davis Instruments sells FCC Type approved antennas for the long range repeater These antennas are available for US customers only US customer MUST use Davis a...

Страница 7: ...increases the distance between transmitter repeater and receiver proportionally All wireless Davis Instruments stations and standard wireless repeaters come equipped with standard dipole antennas that...

Страница 8: ...ole is limited to 1000 A dipole transmitting to an omni antenna lengthens the distance to 1580 because the omni has a better microphone A Yagi antenna has an even stronger microphone and can hear a di...

Страница 9: ...range repeater with an omni antenna receiving and a Yagi antenna transmitting Dipole to Dipole 1 000 feet Dipole to Omni 1 580 feet Dipole to Omni 1 580 feet Yagi to Dipole 3 160 feet Dipole to Dipole...

Страница 10: ...nting the wireless repeater enclosure Omni and Yagi Antenna Combination Assembly The omni and Yagi combination assembly should be performed from the bottom antenna Yagi up to the top antenna Omni so t...

Страница 11: ...e installed so that the directors the smaller cross bars on the boom are parallel with the omni antenna 8 Tighten the hex nuts so that the Yagi is firmly attached 9 Place the omni antenna a distance a...

Страница 12: ...flat washer a lock washer and a hex nut on each bolt end and tighten the hex nuts so that the Yagi remains in place but can still be adjusted 7 If the first Yagi antenna is the receiving antenna rota...

Страница 13: ...m amount of sunshine available at that location 3 While holding the shelter against the pole close to the bottom place a U bolt around the pole and through the two holes on at the top of the shelter 4...

Страница 14: ...entrances for cables Make sure that there is one antenna cable per grommet For identification purposes the transmitting antenna cable should be threaded through the grommet on the left side and the r...

Страница 15: ...the repeater and those IDs repeated from the previous repeater in a chain Note Battery life in excess of two years is expected with normal solar input Solar Panel 0 5 Watts Alternate Power AC power a...

Страница 16: ...0 868 6 MHz FHSS CE certified less than 8 mW no license required Antenna gain can not exceed 8 dBi maximum and no more than four transmitter IDs to comply with the EN 300 220 regulation ID Codes Avai...

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