Cho, Mengu

Kim,  Sangkyun

Masui,  Hirokazu

Salces,  Adrian C.

Sejera,  Marloun P.

Automatic Packet Reporting System (APRS) is originally a terrestrial packet communication system widely utilized by amateur radio stations to exchange various information. To extend this capability over a geographically broad coverage, a few microsatellites previously carried an APRS digipeater payload for global amateur community use, and then there have been proposals to do this on smaller nanosatellite platforms, such as the CubeSat. Although CubeSat is an attractive platform for this application – due to its substantially simpler design, lower cost, and faster development time – it also presents several technical challenges such as tight space, power, and communication link budgets. In this paper, we discuss the design, development and testing of an amateur radio payload that operates in the 145.825 MHz amateur frequency, consists of mostly commercial-of-the-shelf components and supports both APRS digipeater and store-and-forward (S&F) communication for remote data collection. The payload was carried as a technology demonstration mission of a 1U CubeSat constellation developed at the Kyushu Institute of Technology under the BIRDS-2 Project. Several amateur operators confirmed reception of the payload’s beacon message but full two-way communication failed due to uplink communication problems. This paper also tackles the investigation on the causes of failure through ground-based communication tests, as well as the recommendations from the findings

Kim, Sangkyun

金, 相均

キム, サンキュン

Masui, Hirokazu

増井, 博一

マスイ, ヒロカズ

趙, 孟佑

チヨウ, メンウ

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Development and Investigation of Communication Issues on a CubeSat-onboard Amateur Radio Payload with APRS Digipeater and Store-and-Forward Capabilities

Development and Investigation of Communication Issues on a CubeSat-onboard Amateur Radio Payload with APRS Digipeater and Store-and-Forward Capabilities

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