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All Journal Journal of Applied Information, Communication and Technology (JAICT) AMMA : Jurnal Pengabdian Masyarakat Teaching and Learning Research Journal
Filda Hulwani Dewi
Politeknik Negeri Semarang
Humanities Chemistry Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing

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Implementation and Analysis of Quadrature Amplitude Shift Keying Modulation Using SDR Devices for Wireless Communication Systems Rizkha Rochmatika; Jeffri Pratama; Slamet Mulyadi; Abu Hasan; Irfan Mujahidin; Muhlasah Novitasari Mara; Filda Hulwani Dewi
JAICT Vol. 12 No. 1 (2026): JAICT
Publisher : Politeknik Negeri Semarang

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This research aims to implement and analyze the performance of Quadrature Amplitude Shift Keying (QASK) modulation in wireless communication systems using Software Defined Radio (SDR) devices. This research uses ADALM-PLUTO as the transmitter and RTL-SDR as the receiver, with signal processing performed through GNU Radio software. The main focus of this research is to evaluate the implementation of 4-QASK modulation in wireless data transmission at several different frequencies (300 MHz, 500 MHz, 1 GHz, and 1.5 GHz) and different distances (1 meter to 5 meters), as well as to measure transmission quality using the Packet loss and Received Signal Strength Indicator (RSSI) parameters. The test results show that this system is capable of transmitting data with good quality, with RSSI values ranging from 51.41 dBm to -62.59 dBm, indicating good to very good signal quality. This test also showed that the further the distance between the transmitter and receiver, the lower the signal reception quality, especially at higher frequencies, indicating a significant influence of distance and frequency on the received signal strength. Based on the results obtained, it can be concluded that QASK modulation using SDR, particularly 4-QASK, is effective in wireless communication with good performance at short to medium distances.
MEMBANGUN JIWA USAHA SANTRI MELALUI PELATIHAN KEWIRAUSAHAAN BERBASIS SYARIAH DI PONDOK PESANTREN NURUS SUNNAH Eri Prihatmini; Sriwahyuningsih Sulaiman; Dewi Anggraeni; Danu Angga Vebriyanto; Diah Wulansari Hudaya; Filda Hulwani Dewi; Rangga Permana
AMMA : Jurnal Pengabdian Masyarakat Vol. 5 No. 5 : Juni (2026): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Economic independence is an essential competence that must be possessed by the younger generation, including students (santri) in Islamic boarding schools (pesantren), which have traditionally focused on moral and religious education. However, modern economic challenges require santri not only to excel spiritually but also to develop financial literacy and adaptive entrepreneurial insight. This community service program aims to enhance the financial literacy of santri through training in gold investment based on sharia principles, as it is considered a relatively safe, stable, and halal investment instrument. The implementation methods include needs analysis, material development, training sessions, investment simulations, interactive discussions, and evaluation. The results indicate an improvement in santri’s understanding of sharia entrepreneurship concepts, muamalah principles, personal financial management, and their ability to conduct gold investment simulations. Evaluation analysis also shows that participants are able to understand the relationship between entrepreneurship, financial planning, and investment as efforts to achieve economic independence in alignment with Islamic values. This program contributes to strengthening the financial literacy of santri and has the potential to be further developed through continuous mentoring and integration with pesantren-based economic programs.
A Corpus-Based Analysis of Power Plant Engineering Textbooks: Lexical Patterns and Their Pedagogical Implications for English for Specific Purposes Danu Angga Vebriyanto; Eri Prihatmini; Filda Hulwani Dewi; Diah Wulansari Hudaya; Rangga Permana
Teaching and Learning Research Journal Vol. 2 No. 3 (2026): Juli
Publisher : Permata Education

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Power Plant Engineering textbooks play a vital role in supporting English for Specific Purposes (ESP) instruction; however, their lexical characteristics have received limited attention in corpus-based research. This study aims to identify the lexical patterns of Power Plant Engineering textbooks and examine their pedagogical implications for ESP. A specialized corpus was compiled from nine English-language textbooks and analyzed using AntConc version 4.3.1. The analysis focused on word frequency, collocations, lexical bundles, and concordance patterns. The findings revealed that the corpus is characterized by a high frequency of discipline-specific vocabulary, recurrent collocations, and formulaic lexical bundles that reflect the distinctive features of Power Plant Engineering discourse. These lexical patterns indicate that technical knowledge is communicated through stable phraseological units rather than isolated words. The findings provide an empirical basis for developing discipline-specific vocabulary lists, corpus-informed teaching materials, and ESP curricula. This study demonstrates that corpus analysis is an effective approach for identifying authentic engineering language and supporting evidence-based ESP instruction.
Co-Authors Abu Hasan Danu Angga Vebriyanto Dewi Anggraeni Diah Wulansari Hudaya Eri Prihatmini Irfan Mujahidin Jeffri Pratama Muhlasah Novitasari Mara Rangga Permana Rizkha Rochmatika Slamet Mulyadi Sriwahyuningsih Sulaiman