Hi All,
Our friend intends to do an International Light House Ham Radio Weekend and he has prepared the paper below for your attention.
Enjoy reading -
Purpose:
i. This event is not a contest, there are no prizes or any other enticements to participate and is therefore free of charge.
ii. To promote public awareness of ham radio and lighthouses in Malaysia.
iii. To acknowledge the contribution and recognition of the lighthouses and their keepers.
iv. To foster fellowship among members of the various Ham Radio clubs and Lighthouse Societies in Malaysia.
v. To gain experience for DX-peditions for the Ham Radio operators and to promote “exotic” Malaysia among International DXCC chasers or seekers.
vi. Pilot project proposed, as a future yearly event on the 2nd weekend of August and to be inserted in the Tourism Malaysia Calendar of the year.
vii. Since the 2nd weekend of August every year, coincides with the “Asia Pacific JOTA”, this ILLW event is extended to all Boy Scouts and Girl Guides via BP House Malaysia, to join in the fun at the light houses or contact the light houses via Ham Radio.
Date: 1st till 31st August 2009 (MST)
Weekend 2 – 8 Aug 09 (Sat), 9am till 9 Aug 09 (Sun) 3pm (30hrs)
Weekend 3 – 15 Aug 09 (Sat), 9am till 16 Aug 09 (Sun) 3pm (30hrs)
Collaboration with:
Jabatan Laut Malaysia
Kementerian Belia Dan Sukan
Suruhanjaya Komunikasi dan Multimedia Malaysia
Kementerian Pelancongan & Tourism Malaysia
Pejabat Menteri Besar & Local Council
MARTS
MARES
ASTRA
NESRAC
JASRA
PERAMAH
BARC
Kinabalu Radio Club
SARC
Kuching Radio Club
Brunei Darrusallam Radio Society
SARTS
All other groups within Malaysia
Light Houses Station Master:
Penang
Rumah Api Fort Cornwallis, 9M2BA – Azmi Abdullah
Rumah Api Muka Head
Rumah Api Pulau Rimau
Selangor
Rumah Api Pulau Angsa 9M2CJ – Thiam Chee Ming
Rumah Api One Fathom Bank
Rumah Api Kuala Selangor 9M2SQL – Abdul Mutalib Omar
Rumah Api Bukit Jugra 9M2GEN - Zafarudin
Negeri Sembilan / Melaka
Rumah Api Cape Rachado 9M2QQ – Hans Elhers
Rumah Api Pulau Undan 9M2WT – William Tan
Johor
Rumah Api Bukit Segenting 9M2NP - Tango (Narayanan Pillai)
Tanjung Piai Lightbeacon
Pulau Pisang Light House
Tg Api Api Light House 9M2DA Deen Atan
Tg Tenggaroh Light House
Pulau Mungging Light House
Pahang
Rumah Api Tanjung Gelang 9M2TOT Ibrahim B Musa
Kelantan / Terengannu
Tumpat Light House
Pantai Senok . Pengkalan Daty Light House
Seabelle Rock Light House, Pulau Perhentian
Bukit Puteri Light House Kuala Terengganu
Sabah
Tanjung Kubong Light House 9M6DJC – M Christoper
Pulau Papan Light House
Pulau Gaya Light House
Pulau Kalampunian Light House
Pulau Silingan Light House
Tanjung Trang Light House
Bagahak Light House
Pulau Si Aimil Light House
Sarawak
Tanjung Dato Light House 9M8DB – Johnny
Tanjung Po Light House
Tanjung Jerijeh Light House
Tanjung Sirik Light House
Tanjung Kidurong Light House
Tanjung Lobang Light House
Tanjung Baram Light House
So any volunteers please contact 9W2PD at 019- 654 0011
Kredit for 9W2MUC
An interface unit allows one to transmit and receive digital modes using a computer sound card. Conveniently, the interfaces below were designed to operate without an external power supply, so before rushing out and spending a fortune on a commercial interface with features you will probably never need or use, consider building your own! I have included here some simple designs that I have built, tested and which work very well considering their simplicity and economy. These circuits will perform well if you intend to run an Internet gateway using the eQSO or EchoLink software. Parts for these circuits (or complete kits) can be obtained from www.modecomponents.co
(1) SIMPLE INTERFACE
This circuit, based on parts typically found in any amateur's "junk box" is an extremely cost effective solution. In this circuit, RTS (the "ready to send" line on the computer) drives an open collector for the PTT. Any general NPN transistor can be used instead of the BC108. It is very similar to the isolated circuit (below), except it does not use audio transformers or the optocoupler, but performs splendidly. (Of course, if you just happen to have a couple of audio transformers, you could add them to this circuit in the same position as in the isolated circuit). 
Components
1 x 1k ¼ watt resistors - 2 x 2.2k ¼ watt resistors
1 x 1k Potentiometer Lin - 1 x 2.2uF 50v capacitor - 4 x 0.01uF capacitors
1 x Red LED (High sensitivity type) - 2 x Diode 1N4148 - 2 x 3.5mm Stereo plugs
1 x BC108 Transistor - 1 x 9 Pin D plug ( Com port 1 or 2) & cover
Screened cable - Project Box
(2) ISOLATED INTERFACE
This circuit incorporates two 600-ohm audio transformers (T1 & T2) and an RS232 powered optocoupler IC1. Preferably use an IC socket for IC1, for possible quick replacement! The purpose of the transformers and an optocoupler is to isolate the transceiver from the computer, keeping the interference from the PC to a minimum. Ensure that the screening on the radio and the screening on the PC are not connected together.
Stereo 3.5 mm plugs connect the line in and out on the computer soundcard. Use the tip and earth only as in this application the sleeve is not used.
To control the radio PTT, an isolated signal from the computers RS232 (RTS) line is used. If you have an available DB9 connector on your computer, use RTS (Pin 7) and ground (Pin 5). If you have a DB25 connector on your computer, use RTS (Pin 4) and ground (pin 7).
VR1 is a 1K linear potentiometer used to control the amount of audio going to the MIC and is adjusted for correct audio drive to the radio, usually converting line (0.5v) to MIC (10mV) levels. The 1.2k resistor (from the Line Out) can be changed to a greater value if you are troubled by the pot always being at the bottom or top of the range or alternately by adjusting the computers audio out slider till the correct level is achieved. Operationally, audio levels are adjusted by the computer level controls or are incorporated in the software you will be using.
The LED (high sensitivity type) is used as an indicator when the interface is in the transmit mode.
It is suggested that the finished interface is put in a metal box and that the grounding is taken from the radio side of the circuit.
Components
3 x 1k ¼ watt resistors - 1 x 1.2k ¼ watt resistors
1 x 1k Potentiometer (lin) – 1 x 2.2uF 50v capacitor - 3 x 0.01uF capacitors
2 x (T1 & T2) 600 ohm transformers type 9000 RS Number 208-822
1 x IC1 optocoupler 4N25 RS Number 597-289
1 x Red LED (High sensitivity type) - 1 x Diode 1N4148 - 2 x 3.5mm Stereo plugs
1 x 9 Pin D plug ( Com port 1 or 2) & cover
Screened cable - Project Box
(3) INTERFACE FOR TWO TRANSCEIVERS.
The circuit below, a special version of the Isolated Interface, allows gateway operators to run 2 eQSO Internet Gateways (say one on 2m and another on 70cm) without the need for two callsigns and wasting server bandwidth
from an article by Peter, G4KQU, with his kind permission.
Pengulang (Repeater) adalah menyerupai satu stesen yang tidak mempunyai operator, selalunya terletak di tempat yang TINGGI seperti atas bukit atau bangunan tinggi. Kebiasaannya pengulang di tempatkan di satu kawasan yang TINGGI. Pengulang berfungsi memancar semula isyarat lemah atau kuat dari Pemancar Radio Bimbit (Walkie Talkie / Handie Talkie) atau pemancar dari kenderaan (Mobile) kepada kawasan yang lebih LUAS dan JAUH dari kebiasaannya tanpa menggunakan pengulang. Malahan isyarat dari Pemancar kenderaan yang sedang bergerak (Mobile) lebih mantap dari biasa tanpa pengulang.
Pengulang terdiri dari PENERIMA (RX / Input) dan PEMANCAR (TX / OUTPUT) berserta beberapa peralatan kawalan dan penapis atau dikenali sebagai "DUPLEXER". Dengan bantuan penapis (Low / High Pass Fillter), membolehkan ia berfungsi memancar dan menerima dalam masa yang sama. Berbeza dengan komunikasi biasa dilakukan seperti diantara dua stesyen (Simplex) yang hanya menggunakan satu frekuensi sebagai penerima dan memancar dalam frekuensi yang sama. Pengulang 2 meter Radio Amatur mempunyai Frekuensi Menerima (Input Frequency) 600 kHz lebih rendah dari Frekuensi Memancar (Output Frequency).
Untuk mengguna atau memasuki pengulang, pastikan Pemancar Terima (Transceiver) anda berada dalam Frekuensi dan konfigurasi yang betul, kemudian anda umumkan "9W6DEN di frekuensi" (9W6DEN on frequency) atau "9W6DEN bersedia untuk panggilan" (9W6DEN standing by for a call) bukan "9W6DEN Monitoring Mode". JANGAN umumkan "9W6DEN mendengar" (9W6DEN listening) bukan "9W6DEN Monitoring Mode" serta lepaskan butang PTT (Push to Talk) dan berharap seseorang akan memanggil anda. Anda sebenarnya mengumumkan 'anda hanya mendengar' (monitor) dan tidak menunjukan keinginan untuk berkomunikasi (QSO).
