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6-4-3
RF Communications Conditions: Advanced Settings
Transmission Power
You can specify the transmission power for read communications and write communications. If you
adjust the transmission power according to the communications distance, you can suppress radio
wave interference and reduce reading non-target RF Tags.
Setting item
Tx power (Read)
Tx power (Write)
*1. The communications distance is shorter when writing data to an RF Tag in comparison with reading data from
an RF Tag. The difference in the communications distance varies depending on the RF Tag.
Channel
You can use the channel setting to select the channel (i.e., the frequency band) to use for execution
of communications commands.
Use this setting to prevent mutual interference with nearby Reader/Writers and interference with
other wireless devices.
Setting
Auto channel
Specified Channel
V780-HMD68-ETN-JP
V780-HMD68-ETN-IN
V780-HMD68-ETN-EU
V780-HMD68-ETN-RU
*1. The channel used can only be specified in models V780-HMD68-ETN-IN/-EU/-RU. The channel cannot be
specified in the other models.
Version Information
In Ver.1.00/Ver.2.00, 916.6 MHz is used as channel number 1CH.
In Ver.3.00, the channel number was changed in accordance with the regulations of the Japa-
nese Radio Act.
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
The transmission power output during execution of read communi-
cations commands.
15 to 27 dBm (in 1-dB increments)
The transmission power output during execution of write commu-
nications commands.
15 to 27 dBm (in 1-dB increments)
The channel is automatically switched depending on
the conditions of the Reader/Writer.
*1
This specifies the channel to use.
5CH: 916.8MHz
11CH: 918.0MHz
17CH: 919.2MHz
4CH: 865.7 MHz
7CH: 866.3 MHz
10CH: 866.9 MHz
4CH: 865.7 MHz
7CH: 866.3 MHz
10CH: 866.9 MHz
13CH: 867.5 MHz
7CH: 866.3 MHz
10CH: 866.9 MHz
13CH: 867.5 MHz
Description
V780-HMD68-ETN-
6 Functions
Default
27 dBm
27 dBm
Default
Auto channel
6 - 25
6
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