---
title: Can the BIS V processor be connected to an UHF antenna?
description: "UHF antenna: read and write distance within 1 meter"
---

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# Can the BIS V processor be connected to an UHF antenna?

## UHF antenna: read and write distance within 1 meter

The BIS V processor can be connected to 4 read/write heads and supports simultaneous reading and writing by 4 read/write heads. 

 

![1](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/RFID2/2/1.png?width=273&name=1.png)

And the 4 read/write heads can be low frequency, high frequency or ultra high frequency. 

 

![2](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/RFID2/2/2.png?width=600&name=2.png)

When the UHF antenna BIS V U is connected, it is transmitted through the 485 protocol, the longest distance is 50 meters, and the read-write distance of the read-write head is within 1 meter. 

 

![3](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/RFID2/2/3.png?width=310&name=3.png)

 

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