參數(shù)資料
型號(hào): HTOT840
廠商: NXP Semiconductors N.V.
英文描述: HITAGTM Antenna Tuning Device
中文描述: HITAGTM天線調(diào)諧器
文件頁(yè)數(shù): 5/8頁(yè)
文件大?。?/td> 72K
代理商: HTOT840
HTOT840
Rev. 1.1
1996-11-22
Htot840.doc/HS
Page 5 of 9
4.
Using the HITAG Antenna Tuning Device
The HITAG Antenna Tuning Device is a combined current- and phase measurement device. It
can be used for tuning HITAG long range as well as HITAG proximity antennas. Selection
between long range and proximity is done with the help of a switch.
The tuning device is connected between antenna and read/write device as described in the
following:
The cable with plug (DIN 41524) has to be connected to the read/write device, the antenna
cable is to be connected to the jack (DIN 41524) of the tuning device.
Adapters - if they are necessary - e.g. for connection of a proximity system, can be built up
very easily.
Pin assignment of the DIN connectors:
Pin 1: Ground
Pin 2: Rx (not used for long range antennas)
Pin 3: Tx
Moreover, the cable with one of the two DIN connectors (plugs) can be used to build up an
adapter.
After connection of the Antenna Tuning Device the operation mode (proximity or long range)
has to be chosen with the help of the switch.
Afterwards power supply and read/write device can be switched on.
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