Friday, March 24, 2006

Wanna start AMateur TV?

Show the family, the shack, projects, etc. Since the lower the
frequency, the farther the distance, given the same power
and antenna gain, the 70 cm band is where 98% of ATVers
operate - it is also the lowest cost and easiest to get on.
The 902-928 MHz band goes half the distance and so on.
ATV frequencies work best with an unobstructed line of
sight path between the transmitting and
receiving antennas. So the antenna and height is the most
important part of the ATV station. Antennas need to be made
for the 70 cm band, preferably as high of gain as possible and
the same polarity as is standard in your area. Low loss coax
is also a must as it takes 150 to 200 microvolts into your receiver
for a snow free picture and you don't want to throw RF away

To see your first picture it may be as easy as turning your cable
ready TV to cable channel 57 thru 60 and connecting it to a good
outside 70 cm antenna of the same polarity as is used in your
area by ATVers. It doesn't get any cheaper or easier
than that to enjoy another of the many modes in Amateur Radio.
Make sure your TV tuner is switched to cable channels when you
try it. Unlike slow scan TV - SSTV - ATV standards are the
same as broadcast TV and your camcorder so your TV set is
your receiver without the need of any computer or other black
box interface. However, the 70 cm, 420-450 MHz band is the
first ham band that has wide enough bandwidth for ATV and
therefore can best be seen between antennas with line of sight.

Amateur Television, ATV, is fun and easier than you might think
to get on with all kinds of applications.
Besides sending and receiving live action color video between
home ham stations much in the way you are probably
used to with voice on two meter FM, there is; televising live or
from tape your ham radio club meetings to those
who could not make it in person; showing critical locations to
local emergency service groups during actual
disasters, parades or races; seeing Space Shuttle video and
audio if some one is repeating it from their satellite
TVRO; seeing the edge of space from amateur balloons or
rockets as high as 100,000 ft.; getting a pilots view from
a camera in a R/C model aircraft or real airplane, and much more.

Any camcorder or camera can simply plug its composite video
and line audio into the ATV transmitter. It can be color or
black and white - what ever you plug in is what you get out.
Composite NTSC video is the standard A/V output in
the USA for camcorders. As an alternative there are many
small low cost color or black and white cameras available now
that are made for computers or security
under $200 that can be used at the home station, mobile,
portable, R/C, balloon or rocket ATV.


Ham Radio CW International Q-Signals

Q-Signal code followed by
CW Meaning

What is your callsign? (callsign)
What is my signal strength? (1-5)
What is my exact frequency? (this freq)
Are my signals fading? (signals are fading)
Does my frequency vary?
Is my keying defective?
What is my signal tone quality? (1-3)
Shall I send __ messages at a time?
What is my signal intelligibility? (1-5)
Can you work break-in? (break-in operation)
Are you (or this freq) busy? (This freq. is busy)
Can you acknowledge receipt? (I confirm receipt of message)
Is my transmission being interfered with? (signal interference)
Shall I repeat the last message I sent?
Are you troubled by static? (static, atmospheric noise)
Can you communicate with this station? (radio contact between stations)
Shall I increase transmitter power? (increase power, high powered)
Will you relay to __?
Shall I decrease transmitter power? (decrease power, low powered)
A general call preceding messages to all radio operators (info, news).
Shall I send faster?
Shall I send a series of V's?
Shall I send slower? (send slower)
Will you transmit on __?
Shall I stop sending? (stop transmitting)
Will you listen on __ (freq)?
Do you have any messages for me? (I have no messages for you)
Shall I change frequency? (change frequency)
Are you ready? (I am ready to transmit)
Shall I send each word/group more than once?
Shall I tell __ (callsign) you're calling him?
What is your location? (station location)
When will you call me again? (wait, standby)
What is your correct time?
Who is calling me? (anyone answering my transmission)
Will you keep your station open for further communication with me?
Q-signals are three letter combinations used to represent common phrases or sentences for CW operation. They may be used as a question with a question mark (?) or statement without the question mark. For example, "QRZ?" is used to ask for the calling station(s) to identify again. "Please (pse) QRS" is used as a request to send the code at a slower speed. "The QTH is" is used to indicate this station's location.

Although originally used for CW, many Q-signals have become acceptable for phone operation.
Non Q-Signal CW Radiotelegraph Abbreviations:
73 -- Best Regards.
88 -- Love and Kisses.
YL -- Young Lady meaning Unmarried Lady; also any female ham radio operator.
XYL -- Ex-Young Lady, meaning a Married Lady; usually refers to a ham's wife.
OM -- Old Man, any male ham radio operator.

Copyright © 1997-2005 W5AM, All rights reserved.

Wednesday, March 15, 2006

MARTS web page Motto

Welcome to MARTS, the national organization representing the interests of amateur radio (ham) operators in Malaysia since 1952.

MARTS is devoted to providing valuable programs to serve the ham community, whether those served are Malaysian Amateur Radio Transmitters' Society members or not, prospective hams, or old timers.


The above lines were taken from MARTS website today.
Its funny, normally a Society/Association or Club, is to take
care of its members interest primarily, and then if time and
funding permits, to assist others who are in the same hobby
but who are not members. If you don't believe
on the title link above!

But here we have a Society that is looking after people who
are not members in benefit..not paying any dues!

If this is the case..then we all need not be MARTS members!
But we still can use all MARTS facilities..
Lets see..RM50 per year..can buy a lot of Char Kuih Tiow!

my 2 sens

Tuesday, March 14, 2006

Where did the word HAM come from?

From Florida Skip Magazine - 1959

Have you ever wondered why radio amateurs are called "HAMS"?

Well, it goes like this: The word "HAM" as applied to 1908
was the station CALL of the first amateur wireless stations
operated by some amateurs of the Harvard Radio Club.
At first they called their station "HYMAN-ALMY-MURRAY".
Tapping out such a long name in code soon became tiresome
and called for a revision. They changed it to "HY-AL-MU",
using the first two letters of each of their names.
Early in 1901 some confusion resulted between signals
from amateur wireless station "HYALMU" and a
Mexican ship named "HYALMO".
They then decided to use only the first letter of each name,
and the station CALL became "HAM".

HAM Radio in Space . .Australia's next

It seems that most people are now taking Amateur Radio to Space. A good model to replicate, that of ARRL, project ARISS, The University of New South Wales, is replicating it OZ Style.
(Follow the link above on their launch and payload, with objectives i.e double click title!)

Malaysia boleh! With that in mind, let's work towards that target too . . .shall we?
Project SKYTALK 9M , stand up now!
send your email to to get included in the mailing list for the project.

de 9W2MCT -Tony

Friday, March 10, 2006

Emergency Beacon Watch

as highlighted by Izwan 9W2IZW,

This is good for Hamsters that get lost in the jungle,
or over water.
The watch in question transmits an emergency signal on
either VHF or UHF distress frequencies of
121.5 Mz or 243 Mz.

121.5 MHz transmitter power reserve at 30 mW : 48 hrs

243 MHz transmitter power reserve at 25 mW : 24 hrs

Thermal operating range : –10° to 85°C.

Transmitter water resistance : to 30 m (3 atm)

Transmitter power source : 2 x 3V independent lithium batteries.

water-resistant to 30 m (3 atm). Sapphire crystal, glareproofed front and back.

Incorporating an emergency microtransmitter, the Breitling Emergency was developed to assist pilots in distress.

The Emergency version for civil-aviation use broadcasts on the 121.5 MHz distress frequency and serves as a back-up for ELT-type airborne beacons. For military users, Breitling has equipped the Emergency with a miniaturized transmitter with On/Off switch, operating on the 243 MHz military frequency.

Under normal conditions — flat terrain or calm seas — the Emergency's signal will be picked up at a range of up to 90 nautical miles by search aircraft flying at 20, 000 feet.
The Emergency is designed to foil any handling mistakes and to protect the transmitter from even violent jarring.

taken from :

Wednesday, March 08, 2006

HAM Radio In Space

Some of you may have already been exposed to this, and may consider this stale news.
For those of you who have not, a recent experiment involving an orbiting transmitter, aptly named SUITSAT, which was manually launched from the International Space Station, may have stirred some more interest in you.
If you do have the time, spend a few minutes reading this article, and perhaps, you can participate in the up and coming, hopefully, workable project. It all depends on our friends in Angkasa, and their opinion of Amateur Radio Experiments in general!

9M2RT-Razif, came out with a good suggestion, replicating this idea, of getting Malaysia's first Astronaut to communicate directly with Earth stations in 9M/W2 land. The idea was tossed around a bit, and MARTS Council was informed about it.
Seeing that this is a great opportunity to alleviate our Society, we have decided to publish this idea, in hope that we can get some, decent volunteers, to help steer this project.
So far, Angkasa, through it's Science Officer for the 'Angkasawan' project has reacted positively, and is keen to explore this. We are now in the process of getting our heads together, so that we can start the groundwork.

So, we are calling for all interested HAMS, to stand up and be counted. An invitation to other clubs will be extended through the 'official' channel, once we get the complete go ahead.
Send your positive replies to, and get updated.

So here is hoping that you can come explore this new front with us.

de 9W2MCT - Tony
p.s this is a MARTS Members initiative, and IS NOT restricted !

Monday, March 06, 2006

Cushcraft VHF Antenna for sale

9W2VA has a Cushcraft VHF antenna Model ARX2B
for sale at RM345.

Antenna looks like this when fully erected:

The Cushcraft ARX2B Ringo Ranger II has more gain, less windload and more mechanical integrity than other 2 meter antennas. Based on the original W1BX Ringo, the Ringo Ranger II is the latest design featuring three 5/8 wave radiating elements and an adjustable 1/8 wave phasing stub. The result is very low angle of radiation over your coverage area.

Technical specifications :
• Frequency: 135-160 MHz • Gain: 7.0 dBi • VSWR 2:1 Bandwidth: >3 MHz • Power: 1000 watts FM • Height: 14 Feet (4.3 m) • Ring Diameter: 5 inches (12.7 cm) • Mast Size: 1-1.25 inches (2.54-3.1 cm) • Wind Surface: 0.5 sq. feet • Connector: UHF • Weight: 6 Lbs (2.7 kg)

Please contact him at 012-2037060 for more details

9M2RUK - Reinstallation

CQ CQ CQ . . .calling any stations who are interested to scale Ulu Kali, to assist or perhaps lead in the Repeater re-installation. As we have to submit a list of intended visitors, complete with IC, and Full name, please advise Tony - 9W2MCT via, as soon as possible.
The dateline to do so, is on Wednesday, 8th March 2006.

The request from MARTS council for these information was received Friday, March 2nd 2006.
We are trying to kep the group small, so if you volunteer, be prepared to do your part.


Sunday, March 05, 2006

Amateur TV

For those 9M licence holders, anyone of you have any experience
in the transmission of Video signals as shown below?

Or Video streams being sent through a repeater like in the scenario below?

New Rig

Found this YAESU Model FT1802 being sold in America.

Rig is for VHF use only.

Amateur VHF transceiver
Frequency range:
TX: 144-146 MHz
RF Power output:
Hi: 50 WMid: 25 WLo2: 10 WLo: 5 W
<0.2>70 dB
13.8 VDC
Current drain:
RX: 300-700 mATX: 4-10 A
50 ohms
Dimensions (W*H*D):
140*40*146 mm
1.2 Kg
221 memories with Alpha-tags. ARTS, DTMF, CTCSS, DCSWIRES II. CW trainer. Password protection.New price 2006 in Sweden: 1995:- SEK

Has anybody had any experience with this set?