Month 31, 2025—Amateur Radio on the International Space Station (ARISS) has received schedule confirmation for an ARISS radio contact between an astronaut aboard the International Space Station (ISS) and students at the Sayama Technical High School, located in Sayama, Japan. ARISS conducts 60-100 of these special amateur radio contacts each year between students around the globe and crew members with ham radio licenses aboard the ISS.
Sayama Technical High School has three departments: Mechanical Engineering, Electrical Engineering, and Electronics Engineering. Members of Sayama Technical High School radio club (JA1YUT) are supporting this ARISS contact, and providing guidance on communication methods. Students participating in this radio contact include those at the high school as well elementary and junior high school students.
This will be a direct contact via Amateur Radio allowing students to ask their questions of astronaut Takaya Onishi, amateur radio call sign KF5LKS. The downlink frequency for this contact is 145.800 MHz and may be heard by listeners that are within the ISS-footprint that also encompasses the relay ground station.
The amateur radio ground station for this contact is in Sayama, Japan. Amateur radio operators using call sign JA1YUT, will operate the ground station to establish and maintain the ISS connection.
The ARISS radio contact is scheduled for April 2, 2025 at 6:07 pm JST (Sayama, Japan) (9:07:21 UTC, 5:07 am EDT, 4:07 am CDT, 3:07 am MDT, 2:07 am PDT).
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Translated:
School Information:
学校概要
狭山工業高校は、機械科、電気科そして電子機械科の3学科があります。今回の交信メンバーは、これらの生徒の内無線部（JA1YUT)のメンバーと近隣の小中学生で構成されています。小中学生に関しては、無線部のメンバーが、交信の方法等の手ほどきを行い、交信に備えてきました。
Students First Names & Questions:
質問リスト
1. 近藤 省吾（17）ISS内の電気配線などはどのように配線されていますか？
2．今井 力輝（17）どんな勉強をすれば、宇宙飛行士になれますか？
3．島﨑 弘規（17）地球から飛び立って、無重量になった瞬間はどんな感覚だったか？
4．白井 優心（17）無重力で、一番辛い姿勢は？
5．瀧上 徠斗（17）ISSでの排泄物の処理方法を、教えて下さい。
6．長沢 風芽（17）ISS内でお湯を沸かすことは可能か？
7．藤波 祐也（17）宇宙飛行士に向いている人は、どんな人物か？
8．増岡 夢月（17）宇宙は、どんな景色ですか？
9．田口 翔 （16） ISSで宇宙食以外食べる物はあるか？
10．杠葉 一輝（16）宇宙ではお風呂はどうしていますか？
11．樋口 直希（17）宇宙では、どのように寝ているのか？そしてどれくらい睡眠をとっているのか？
12．友山 直洋（15）宇宙に行って考え方はどのように変わりましたか？
13．陣内 大貴（13）国際宇宙ステーションの窓の外にはどんな景色が広がっていますか？
14．笠原 義陽（13）ISSで生活していて楽しいことは何ですか？
15．佐藤 悠乃（10）宇宙ステーションのなかは酔いますか？
16．川越 菜々（10）私は、青くて綺麗な海王星が一番好きですが、好きな惑星や行ってみたい惑星はありますか？
17．高山 咲弥（10）自分がSUPER HEROだったら宇宙でどんな活動をしたいですか！
As time allows, students will ask these questions:
1. How are electrical wires arranged inside the ISS?
2. What kind of studies should we do to become an astronaut?
3. How did it feel the moment you became weightless after leaving Earth?
4. What is the most uncomfortable posture in zero gravity?
5. How do you handle waste disposal on the ISS?
6. Is it possible to boil water on the ISS?
7. What kind of person is best suited to be an astronaut?
8. What does space look like?
9. Besides space food, is there anything else you can eat on the ISS?
10. How do you take a bath in space?
11. How do you sleep in space and for how many hours each day?
12. How has living in space changed your way of thinking?
13. What does the view look like outside the ISS windows?
14. What is the most exciting thing about living on the ISS?
15. Do you get motion sickness inside the space station?
16. My favorite planet is the beautiful blue Neptune. Do you have a favorite planet or one you would like to visit?
17. If you were a SUPER HERO, what kind of work would you like to do in space?