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Revision History
Version
Revision
Date
Ver. 1.0.0 Primary UM220-IV NL User manual Primary.
Dec.2017
Ver. 1.0.1 Alpha
release
The Pin definition and performance parameters have
been updated.
Jun.2018
Ver. 1.0.2 Beta
release
Updated size parameters
Aug.2018
Ver. 1.0.3 Product
release
Update product label instruction
May.2019
R1.1
1.2: Delete the GLONASS frequency
6.2: Add shelf life
Sep. 2019
R1.2
Chapter 6.2: revise the MSL instructions
Jan. 2020
R1.3
Add the footnote to elaborate CEP
Oct. 2020
R1.4
Add the description of SMT stencil
Jun. 2021
R1.5
Update power supply VCC and V_BCKP
Aug. 2021
R1.6
Add notes in Section 4.4
Nov. 2021
R1.7
If hot start is not used, connect V_BCKP to VCC.
Revise the VSWR in section 1.2
Nov. 2022
R1.8
Optimize the description of antenna power supply;
Add Chapter 4.3 Power Supply Requirements
Apr. 2023
R1.9
Modify the description of “order code” to “sub-model”
Jan. 2024
Legal right notice
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Communication, Inc. (“Unicore”) referred to herein.
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