MAGDAS PEN was established on 19th September 2019 as one of the MAGDAS observatory arrays located at Universiti Sains Malaysia (USM) (5.15°, 100.50°). The main objective of the MAGDAS project is to monitor global electromagnetic and the ambient plasma density in the geospace environment. This installation has contributed to a better understanding of the Sun-Earth coupling system. This paper presents the installation process of one of the MAGDAS magnetometers named YU-8 T magnetic sensor and provides a preliminary analysis of geomagnetic HDZ components amplitude-time that was observed at PEN station. A one-month HDZ-geomagnetic field data was processed from 1st November to 30th November 2019. The daily variations with a consistent pattern in delta H geomagnetic field components are observed throughout the day with eastward electric field effects that are observed during solar peak hours. The delta H-component gradually increases around 0700LT and reaches the maximum reading at 1300LT with a range of value ~ 40-70nT. The value slowly decreases that started from 1400LT until the night time. The reading during the night time shows a constant variation with magnitude varies in between −10nT to + 10nT. The average H-component value of the night time is used as the baseline for the observation system. Overall, the observed trends portray a good sign of solar quiet field and Sq with no solar-terrestrial disturbances.

MAGDAS PEN于2019年9月19日成立，是位于马来西亚大学（USM）（5.15°，100.50°）的MAGDAS天文台之一。MAGDAS项目的主要目标是监视地球空间环境中的整体电磁和周围等离子体密度。该安装有助于更好地理解日地耦合系统。本文介绍了一种名为YU-8 T磁传感器的MAGDAS磁力计的安装过程，并对在PEN站观测到的地磁HDZ分量的振幅-时间进行了初步分析。从2019年11月1日至11月30日处理了一个月的HDZ地磁场数据。一天中观察到的δH地磁场分量具有一致模式的日变化，并且在太阳高峰时段观测到向东电场效应。H分量的增量在0700LT附近逐渐增加，并在1300LT处达到最大读数，范围为〜40-70nT。从1400LT到晚上，该值逐渐降低。夜间的读数显示出恒定的变化，幅度在-10nT到+ 10nT之间变化。夜间的平均H分量值用作观察系统的基线。总体而言，观察到的趋势显示出太阳安静场和Sq的良好征兆，没有太阳地面干扰。H分量的增量在0700LT附近逐渐增加，并在1300LT处达到最大读数，范围为〜40-70nT。从1400LT到晚上，该值逐渐降低。夜间的读数显示出恒定的变化，幅度在-10nT到+ 10nT之间变化。夜间的平均H分量值用作观察系统的基线。总体而言，观察到的趋势显示出太阳安静场和Sq的良好征兆，没有太阳地面干扰。H分量的增量在0700LT附近逐渐增加，并在1300LT处达到最大读数，范围为〜40-70nT。从1400LT到晚上，该值逐渐降低。夜间的读数显示出恒定的变化，幅度在-10nT到+ 10nT之间变化。夜间的平均H分量值用作观测系统的基线。总体而言，观察到的趋势显示出太阳安静场和Sq的良好征兆，没有太阳地面干扰。