Judul: Analisis Sistem Tataniaga Jeruk Siam di Desa Sumberagung, Kecamatan Sumberbaru, Kabupaten Jember, Jawa Timur
Abstrak: Citrus nobilis is one of the primary commodities in Jember, where this commodity is increasingly growing as it has a good prospect in the future. Citrus marketing system needs to be considered to increase the value added in an effort to increase the income of farmers as producers. Therefore, farmers should know about the efficient marketing channel to market their crops. The method was used to analyze the orange business administration systems are including qualitative and quantitative methods. Orange marketing in Sumberagung village covers marketing area of Jember, Jogjakarta, and Jakarta. The results of this analysis indicate that there are six marketing channels, where the sixth channel the most efficient channel based on the operational efficiency indicator where the value of marketing margin is Rp 4 416.67, the farmer's share is 62.14%, and the ratio of benefit to cost is 15.41. But, overall all of the marketing channels in Sumberagung village is quite efficient based farmer’s share value and the ratio of benefit to cost that quite large.
Keyword: fruit, orange, ratio i/Ci, farmer’s share, marketing margin, market eficiency analysis, marketing

Judul: Analisis Sistem Tataniaga Mentimun di Desa Laladon, Kecamatan Ciomas, Kabupaten Bogor
Abstrak: Cucumber is one of the prime commodities in Indonesia. The fluctuating price of cucumber and high marketing margin between received price by farmers and price which is paid by consumers make the received farmer's share by farmers is relatively small. The purpose of this research is to identify the channels and marketing functions, market structure and conduct of marketing institutions, and to analyze the efficiency of marketing channels of cucumber based on marketing marjin, farmer's share, and the ratio of benefits to costs. The data were collected by observation and interview to farmers in Laladon village, Subdistrick Ciomas, Bogor Regency. The result of research stated that there were three marketing channels formed with different functions, different institutions, and different market structure on every channel. The analysis of the marketing efficiency concluded that marketing channel III is the most efficient channel because it has the lowest marketing marjin, highest farmer's share, and highest ratio of benefits to costs.
Keyword: system, marketing, Laladon village, efficiency, Cucumber

Judul: Penerbangan Otomatis Pesawat Tanpa Awak Jenis Sayap Tetap dengan iNav
Abstrak: Pesawat tanpa awak (UAV) dapat dikendalikan secara manual dengan remote control atau secara otomatis dengan flight controller (FC). Salah satu jenis UAV adalah sayap tetap yang memiliki bentuk seperti pesawat terbang pada umumnya. Penelitian ini bertujuan untuk melakukan penerbangan otomatis pada UAV jenis sayap tetap dengan mengkonfigurasi perangkat FC. UAV yang digunakan adalah model SkySurfer X8 dengan bentang sayap 1.4 m. FC yang digunakan adalah Matek F405-Wing yang dikonfigurasi dengan perangkat lunak iNav. Berdasarkan hasil uji terbang, UAV berhasil terbang secara otomatis mengikuti skenario yang diberikan. Skenario terjauh berupa persegi berukuran 600×600 m pada ketinggian 100 m, yang ditempuh dalam waktu sekitar 2 menit dengan kecepatan sekitar 65 km/jam. Diharapkan prosedur perakitan, konfigurasi, operasi, dan hasil data uji terbang dapat menjadi acuan dalam penelitian selanjutnya.
Keyword: iNav, penerbangan otomatis, pesawat tanpa awak, sayap tetap