Amateur Radio Station YB9BWN Beacon Transmitter


Welcome to my radio beacon page. The following is the beacon information:
Callsign: YB9BWN
Gridsquare: OI71oh
Beacon: Homebrew crystal-based with IRF510 PA at 2W into a dipole, controlled by a MC68HC908JK3 CPU.

Reception report can be sent via email to kwiadnyana (at) yahoo (dot) com.

The address of the beacon station is as follows:
Jl. Pemuda No. 10
Pojok Tukad Ayung
Denpasar, BALI 80235 - INDONESIA

The radio beacon begins operation on October 23, 2006. This page is continuously being expanded to include equipment photos and reception reports.

The beacon is a homebrew crystal-based transmitter. In its current form (version 4), it uses a crystal oscillator from the two-transistor Universal QRP Transmitter (found in Doug DeMaw's Solid State Design for the Radio Amateur), and it uses a variation of the VXO-Controlled Transmitter (from the ARRL's 1990 handbook). It has 4 2N2222A transistors, driving a 2N2219A with an IRF510 as a PA. Power output is 2W into a horizontal dipole, pointed Northwest + Southeast from my residence. The objective is to direct as much energy as possible to Europe and Australia. I am hoping that some SWL in Japan will be able to hear it.

The beacon schematic can be found here (sorry, hand drawing only for now).

Thanks for checking out my callsign and I hope to see you again on the air, CU es 73.

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Copyright (c) 2006, Ketut Wiadnyana
Drop me a line at ket at the internet address taiga.com
beacon.html; rev 10/23/2006