9W2DI – QRP operation (5W) from Sg Petani, Malaysia to Macau, China

Take a look at this video shot on 3rd September 2010, where we can see that 9W2DI has managed to get contact from Macau, China on (28.495 MHz) 10 meter band! Apparently the 10 meter band is not dead like most people used to say. 9W2DI (Pak Din) is QRP hamradio enthusiast, you can see all his QRP video from his YouTube channel

Visit his blog for more information about his activities : http://9w2di.blogspot.com

Amateur Radio: Malaysian APRS Seminar in Unimap (Perlis)

A seminar on APRS will be held in Universiti Malaysia Perlis (UniMAP) on 7 March 2009. Details of the talk as follows:

Name: Art Takahashi
Academic Qualification: Satellite Microwave System Engineer
Expert Field: Satellite communication engineer & Hamradio
Experiences: Hamradio licence holder about 40 years

Holder Radio Callsigns
PA0HMW,F0DKS,VK3PAT,VK3BFM,VK6MX,VK3EO,
P29EO,VK6MX,VK4GO,VK4GO/BD,JA1OGS
Working for NEC Japan Yokohama & Australia Papua New-Guinia

Professional Bodies Membership:
Rens & Rens , Stedehouwer NERG
The Netherland , Australia Japan

Title: A.P.R.S (Automatic Position Report System)

Synopsis:
Explain what is all about APRS, how it works and what do with it.
Main reason about my second visit is to Malaysia is to help radio amateurs in this country, to understand a other side of hobby. So they start building digital electronics project for the radio amateur hobby. (APRS)

Date: 7 march 2009
Time: 10:30 am ~ 1:30 pm the length from the seminar is depends about visitors interest.

Vanue: Lecture Hall, UniMAP Kuala Perlis.

Info Direction QRV: 9M2RMK 147.9800Mhz Shift -0.600 Tone 203.5
Info Direction on :
a) Wikimapia
b) Google Maps

Those interested to learn more about APRS technology are invited to join in the seminar. It’s free of charge!

The Homebrew Slim Jim Antenna Gain

I’ve been searching for information regarding the radiation angle and the gain of slim jim antenna, but found none of it. So I decided to build the model of the antenna inside the ever useful MMANA-GAL software to get the information I needed myself.

From what I can surmise, the slim jim has a slightly lower radiation angle than vertical dipole antenna and is easier to mount, thus it is suitable to use for point-to-point communication VHF-UHF operation. It has a gain of about 2.8dBi-3.2dBi in free space and 4.8-5.8dBi when mounted at about 30feet from the ground. Here’s the result of MMANA-GAL :

Slim Jim 9w2wtf

Slim Jim mounted 30 feet above ground
Slim Jim Antenna gain

Slim Jim in free space

Radio Amateur Exam RAE 2008-1 Application form – MCMC

MCMC has released Radio Amateur Examination (RAE 2008-1) form and notice on its official website. Those who are interested to take the exam should download the form and submit it to the nearest MCMC office right away.

Details as follows :
Application closing date : 25 April 2008
Examination date : 24 June 2008
Venue : will be announced later

Please do not forget to enclose a copy of your identity card or passport together with application.

Download RAE 2008 documents here :

Finally, good luck to all candidates!

Original source : MCMC website

My Homebrew 2 meter VHF Antennas

Here are the photos of my homebrew 2 meter VHF antennas. One is 6 element OWA yagi and another is a 2 meter Slim Jim for omnidirectional operation

OWA Yagi 6 element

Slim Jim antenna

OWA Yagi 6 element

The homebrew slim jim antenna was previously featured on my blog as well as its plan. The OWA Yagi 6 element antenna plan can be obtained from this post : 6 Element OWA Yagi Antenna for 2 Meter band plan

Kota Setar Local Amateur Repeater Maintenance Photos

Here are some of the photos taken during Kota Setar Amateur Radio Club (Kelab Alor Setar) Family Day on 8 March 2008. Below are the repeater maintenance activity taken on top of Gunung Keriang Hill during that day.

Amateur Radio Repeater Alor Setar Kedah

Amateur Radio Repeater Alor Setar Kedah

Amateur Radio Repeater Alor Setar Kedah

Amateur Radio Repeater Alor Setar Kedah

Amateur Radio Repeater Alor Setar Kedah

Amateur Radio Repeater Alor Setar Kedah

Amateur Radio Repeater Alor Setar Kedah

Amateur Radio Repeater Alor Setar Kedah

Btw, the guy in the blue shirt maintaining the repeater is 9W2USF, Handle: Amiruddin.

Gunung Keriang Repeater Team

Gunung Keriang Repeater Team

You can get the rest of the photos here – RGK Repeater Gunung Keriang Photos, all of the photos taken from 9W2DOT website

How to turn PC Power Supply to power mobile rigs

Here is a guide to modify your PC power supply unit to power up your mobile rig. If its done correctly you can have a cheap (regulated) VDC power supply solution for your mobile rig to operate at home.

Step I

First get a ATX PC power supply from the nearest computer store. Price is around RM30-70.

PSU Power Supply ATX

Make sure it could supply sufficient current. Look at the label. We need at least 10-17amp at 12V for a sufficient operation of mobile rig. Lower Ampere rating means that your mobile rig cant transmit with a typical HiGH setting (50w).

Step 2

Look for ATX power connector. It should look like this.

ATX Connector Ham RaDIO

Look for black and green wire at the ATX connector. The wire position is 4th from the top left side of the connector and 4th from the bottom right side from the connector as pictured above.
Continue reading “How to turn PC Power Supply to power mobile rigs”

Panduan SOP dan QSO Radio Amatur Berbahasa Melayu

Berikut merupakan fail PDF yang mengandungi Panduan berQSO yang diterjemahkan kedalam bahasa melayu oleh 9w2ssl.

Antara informasi yang boleh dijadikan panduan semasa mengendalikan komunikasi radio di udara termasuklah komunikasi simpleks, panduan penggunaan pancar-ulang dan kaedah mengendalikan roundtable

skrin.png

Download file tersebut – Amateur Radio Standard Operating Procedure berbahasa melayu

YagiMAX: The best Yagi Uda antenna modelling software

Today I want to share with you a great Yagi Uda Antenna modeling software for amateur radio operator and enthusiast.

The most interesting part of the software is, it can help you to improve your design by projecting the antenna radiation pattern and estimating the radiation resistance (impudence) at any given frequency.

The application is created for the venerable DOS environment, thus some of the operating system might not be able to run it natively. However I found out that I can run the application successfully using DOSBox DOS emulator software under Ubuntu Linux. For your information, DOSBox is also available for Windows operating system too.

YagiMAX Screenshots

Here’s a couple of YagiMAX screenshot taken from my computer (running Linux, Ubuntu Gutsy). The antenna shown here is a 6 Element OWA Yagi for 2 Meter amateur radio band, scaled from its 6 meter counterpart, the design was taken from L.B Cebik website

yagimax yagi software model

yagimax yagi software model

Download YagiMAX

Here is a download link to YagiMAX 3.11. Hope that will help you in your work !