VU2AY

NR60 PCB

2011-10-06T22:53:00.001-07:00

NR60 Component layout

2011-09-26T22:39:00.001-07:00

NR60 Circuit Diagram

2011-09-26T22:16:00.000-07:00

HAMRADIO & SWL LISTENERS

2011-05-16T22:48:00.000-07:00

Hello all Radio enthusists here is what can thrill you enjoy the virtual ionosphere when the band is lousy. Download this software from Hamshere.com register for free all you require is your PC mike and Speakers. I have just done it and enjoying ever bit thanks to my friend Adolf VU2AF who introduced me to this concept. VIRTUAL RADIO nothing like owning your own txcvr for free, works like the real things with simulation. Licensed Hams can also try the CQ 100 avalible on QSO.NET same thing but only for licensed hams. Good luck and Happy Hunting ENJOY

OUR LADY OF GUADALUPE

2011-04-01T00:26:00.000-07:00

OUR LADY OF GUADALUPE

2011-04-01T00:24:00.001-07:00

OUR LADY OF GUADALUPE

2011-04-01T00:21:00.001-07:00

OUR LADY OF GUADALUPE

2011-04-01T00:18:00.001-07:00

OUR LADY OF GUADALUPE

2011-04-01T00:15:00.001-07:00

OUR LADY OF GUADALUPE

2011-04-01T00:12:00.001-07:00

OR LADY OF GUADALUPE

2011-04-01T00:09:00.001-07:00

OUR LADY OF GUADALUPE

2011-04-01T00:06:00.001-07:00

OUR LADY OF GUADALUPE

2011-04-01T00:03:00.001-07:00

OUR LADY OF GUADALUPE

2011-03-31T23:59:00.000-07:00

OUR LADY OF GUADALUPE

2011-03-30T23:01:00.001-07:00

OUR LADY OF GUADALUPE

2011-03-30T22:58:00.000-07:00

OUR LADY OF GUADALUPE

2011-03-30T22:55:00.000-07:00

OUR LADY OF GUADALUPE

2011-03-30T22:52:00.000-07:00

OUR LADY OF GUADALUPE

2011-03-30T22:49:00.001-07:00

OUR LADY OF GUADALUPE

2011-03-30T22:46:00.001-07:00

OUR LADY OF GUADALUPE

2011-03-30T22:42:00.001-07:00

Our lady of guadalupe

2011-03-29T05:01:00.000-07:00

MOSFET RF AMPLIFIER

2009-09-20T21:32:00.000-07:00

BELOW IS THE TRACK LAYOUT OF THE PCB

FOR THOSEWHO LIKE TO BUILD THIS AMPLIFIER FOR A HOME BREW TX. THIS WAS DONE ON SOFTWARE EXPRESS PCB WHICH IS AVAILABLE FREE ON THE NET

SDR project by vu3wjm

2009-01-14T22:28:00.000-08:00

Hi Friends, I am busy constructing the SDR as designed by om Rahul and have finally got it working. First of all the printed article in the magazine was not the actual size so I had to make several zerox copies to scale it to actual dimensions, then go for the making of the PCB. The component list is not there in the article also several values of component values do not tally with the schematic. I used the value mentioned in the component placement diagram. One more caution the transistors used for the vfo have to checked at the time of purchase as there are duplicates of these made in china

GANDHINAGAR HAMFEST 2008

2008-10-13T23:37:00.000-07:00

http://picasaweb.google.co.in/vu2sfh/HFI2008Gandhinagar#slideshow
THE GANDHINAGAR HAMFEST 2008

The six musketeers of the night owl’s net
Met daily to ragchew and plan for the event
The travel and accommodation plans were discussed at large
Om sai finally took over charge
The tickets were booked and accommodation confirmed by him
The stalwarts relaxed and thanked him
The days flew by for the eventful day
Om sai longed and prayed for the coming event night and day
The departure day finally dawned at last
The gang made headway to Bandra terminus fast
The first to arrive was yours truly and Kamat dear
The rest of the gang arrived soon after full of cheer
Introductions were done old and new faces we did see
Boarded the train and were full of glee
The boys settled down in their allotted seats
The eyeball ragchews started and were hard to beat
The discussions went on till late at night
Like a ping pong ball flying back and forth with all its might
Tired at last we went to bed
Reminding each other about the sked
Alas it was a miserable night
With a lion roaring above me all night
The day dawned the train arrived at Ahmedabad station
We all got down and huddled out to the front of the station
A reception committee was present with transport here
To greet the mumbai gang on arrival there
The gang was huddled into the waiting transport
We started out for the Hostel for we needed some comfort
The driver then lost his way
A sight seeing tour we had through different ways
After hectic driving we finally arrived at last
To check in the Hostel and freshen like flowers
To the registration counter we were we were all led
The registration done to the banquet hall we all fled
The breakfast was different
We ate to our hearts content and were refreshed and vibrant
To the meeting hall we all trooped
In air conditioned comfort we sat for we were all pooped
The welcome address and opening ceremony done
For the cheering cup we were all gone
Familiar and new faces we did see
Eyeball QSO cards were exchanged and were filled with glee
The convention continued till our stomachs burned
At the lunch break we were glad for our stomachs churned
The lunch was all veg which we did enjoy
Quickly finished the chore and beamed with joy
The lunch over to the exhibition stall we made our way
Vintage gear and WW 2 radios were on the bay
The break was soon over
The technical sessions took over
Various topics were covered till the dinner gong was sounded
The dinner round done we were all rounded
To the Hostel we all went
For we were all spent
We huddled to bed, sleep took over
For us the day was all over
Sometime in the middle of the night we were woken up
A distress call for the doctor was up
A itching sickness that is called hives
Did distress the Om who did the Jive
The remedy was on hand a drug called avil
To convince the om to take it was indeed a marvel
The problem solved
We all dissolved
The morning dawned we all woke up
Toilets done we all freshened up
To the venue we all landed back
For breakfast and tea and light snacks
The second session started more topics were covered
Till lunch time was announced we all had recovered
Lunch was over we all split for different tours
The YL’s for shopping and om’s for sightseeing tours
The rest of the gang hovered about catching up with eyeballs still left out
Till a crowd gathered we all trooped to find out what it was all about
To find a snake charmer with two live pets
Who put on a show with his dangerous pets
The show was over we were all transported to the local club house
Enjoyed the tour and hospitality with chai on the house
The ham session was over we said our byes
To the station we were transported with the other guys
A quick dinner was consumed in the station canteen
The fare was delicious and umpteen
The train was on the station we all settled in
And waited for the return journey to begin
Sleep settled fast for we were all tired and went straight to bed
Till some strange sight woke me in the middle of the night
A love making scene was up secretly half of the night
The train to its final destination arrived
We all got down and to our homes we all fled.
C.U/ AGN AT THE NEXT HAMFEST AT BANGALORE BYE

MOSFET TESTER

2008-10-01T00:07:00.000-07:00

MOSFET TESTER
While working on repairs of Computer SMPS I came across a Mosfet in the starter circuit of the power supply and scratched my head on how to test this device and came across this simple setup for testing these devices as shown in the diagram. The meter prods are connected depending on the device whether it is a N-channel or P-channel device. There are two switches used SW1 and SW2 and one Capacitor C1 47nf.
When SW1 is connected to the drain, C1 charges to the supply voltage of the meter
i.e. 3 Volts with the meter in the diode test position, when the SW1 is changed over to the second position the voltage charge on the capacitor is applied to the Gate of the mosfet and the meter shows a reading indicating a good Fet. To discharge the gate voltage Press SW2 which is a push to on switch to short the gate to source and the meter indication will drop to zero Any other indication will show that the device is defective

SIGNAL TRACER

2008-09-24T02:44:00.000-07:00

Circuit Diagram :-

Pulse-Generator & Signal-Tracer
Dual-purpose test-instrument
Very simple circuitry, 1.5V Battery-operated
Parts:R1__________________1M 1/4W Resistor
R2,R4_______________2K7 1/4W Resistors
R3________________150K 1/4W Resistor
C1__________________2n2 630V Ceramic or Polyester Capacitor (See Notes)
C2,C3_______________4n7 63V Ceramic or Polyester Capacitors
D1_______________1N4148 75V 150mA Diode
Q1________________BC547 45V 100mA NPN Transistor
Q2________________BC557 45V 100mA PNP Transistor
SW1________________SPST miniature Slider Switch (See Notes)
J1_________________Stereo switched 3mm. Jack socket (See Notes)
Probe______________Metal Probe 3 to 5 cm. long
Clip_______________Miniature Crocodile Clip
B1_________________1.5V Battery (AA or AAA cell etc.)
Device purpose:
This simple circuit generates narrow pulses at about 700-800Hz frequency. The pulses, containing harmonics up to the MHz region, can be injected into audio or radio-frequency stages of amplifiers, receivers and the like for testing purposes. A high-pitched tone can be heard from the speaker of the device under test when all is working properly. The clip must be connected to the ground of the device under test, touching with the probe the different stages of the circuit, starting from the last stage and going up towards the first. When the tone is no longer heard, the defective stage has been found.Connecting an earclip or headphone to J1, the circuit will automatically change into a two-stage amplifier and any audio signal coming from the device under test and picked-up by the probe will be heard through the headphones. The testing of a circuit should be made in the reverse manner, i.e. starting from the first stage and going down until the last stage. When nothing is heard, the defective stage has been found.
Circuit operation:
Q1 & Q2 form a complementary astable multivibrator, whose operating frequency is set mainly by R3, C2 & C3 values. Output pulses are taken at Q2 Collector and applied to the probe by means of decoupling capacitor C1. D1 provides a symmetrical shape for the output waveform.If an earclip or headphone jack is plugged into J1, the connection from Q2 Collector and C1 - C2 is broken by the switch incorporated into J1: in this case the circuit becomes a two-stage amplifier.
Notes:
If you intend to use the circuit to test valve operated devices C1 must be a 630V type. Working with low voltage supply transistor devices the voltage of C1 can be lowered to 63 or 100V.
If instead of a short probe, you intend to connect the circuit to the device under test by means of a piece of wire longer than a few centimeters, a small ceramic capacitor (470 to 1000pF) should be added in parallel to D1 to prevent unwanted RF oscillation.
Current drawing when in Pulse-Generator mode is about 60µA and 1.2mA when in Signal-Tracer mode operation. Therefore SW1 can be omitted, provided that the earclip or headphones are unplugged when the circuit is unused.
J1 is a stereo switched jack socket wired to obtain a series connection of the two earpieces forming a stereo headphone. In this manner the circuit is loaded with a higher impedance and sensitivity will be improved.Therefore, the higher the load impedance the more sensitive the Signal-Tracer. In any case, common 32 Ohm impedance mini-headphones suitable for walkman sets will work fine.
A crystal (high impedance) earpiece is a good solution, provided you substitute J1 with a mono switched jack socket.
The entire circuit can be easily fitted into a pen-like enclosure, with the probe protruding like a nib

AIRCRAFT RECEIVER

2008-09-23T02:27:00.000-07:00

Description
R1, R3

Qty 2
47K 1/4W Resistor
R2
Qty 1
10K 1/4W Resistor
R4 Qty 1 4.7K 1/4W Resistor
R5 Qty 1 5K Linear Taper Pot
R6 Qty 1 2.2K 1/4W Resistor
C1, C2, C3, C6 Qty 4 0.001uF Ceramic Disc Capacitor
C4 Qty 1 2.2pF Ceramic Disc Capacitor
C5 Qty 1 1pF Ceramic Disc Capacitor
C7 Qty 1 15uF 15V Electrolytic Capacitor
C8 Qty 1 18pF Variable Capacitor
D1 Qty 1 1N82 Diode
Q1 Qty 1 2N918 NPN Transistor
L1 Qty 1
L2 Qty 1 1.8uH Inductor
ANT1

Approx. 18 Inch Wire Antenna
MISC
PC Board, Wire, Knob For C8

For many who live in the vicinity of the airport and would like to hear the qso between the control tower and the pilots this project will give them great pleasure.

THE ART OF EFFECTIVE ORAL COMMUNICATION

2008-09-07T23:03:00.000-07:00

A for Audibility : The successful speaker strives to be heard by persons. This means that the speaker must project his/her voice. It must come from within and not from the throat.
B for Brevity and Begin Well An effective speech must be long enough to cover the subject, yet short enough to be interesting. One of the wisest pieces of advice given to speech – makers is. “ If you want to be seen, stand up, if you want to be heard, speak up, if you want to be appreciated, then shut up.” Arrest the attention of your audience from the start. You can use a joke or an anecdote, a startling statement
C for Clarity Sound all your words, especially the hard consonants like t,g, & d. Clarity requires that you articulate and pronounce every word clearly.
D for Diction : This implies the way you speak, you accent and pronunciation. Listening to news readers on BBC, CNN etc acquaint you with models of good speech.
E for Eye Contact Look at your audience when you speak. They must feel that you are talking to them., look into their eyes, not beyond, under or above them.
F the Friendly Formula : Look feel and sound friendly to your audience. This is communicated through your smile, your tone of voice, your facial expression and your positive outlook.
G : for Gestures They add meaning to what you say. They precede what we wish to say by a split second
There are 4 basic gestures – Acceptance, Rejection, Demonstrative and Determination indicated by palms facing upwards, palms facing downwards, pointing out and the clenched fist.
H for Hands Use them well. Do not stand with your hands in your pockets, behind your back or joined in front. Instead, let them hang loosely by your side and you caan use your hands to make an occasional, spontaneous gesture.
I for Interest .Interest your audience from the start and retain that interest. Use stories, jokes, quotations
J for Jokes : These enliven your speech. Weave them into your speech and see that they suit the context. For example listen to the Joker on the net.
K: for Kwality Kwality counts. It is not how long you speak, but what you say, that matters.
L: for Learn your Speech well: Memorize it well if necessary.
M : for Microphone It can be a blessing or a bane, depending on how you use it. There should be 6” or 4” finger distance between your mouth and the microphone and should be parallel to each other.
N: for Nervousness Notes help a speaker to feel more confident. Notes should be written on the back of old cards, written in dark ink
O : for Open your mouth wide and pronounce your words clearly.
P : for Pace The speed at which you speak. Avoid a pace that is too fast to be taxing to the hearers or too slow to be monotonous and uninteresting. Be brisk in your speech.
Q: for Quotations : Use them to advantage. Only they should be relevant and suitable, used at the right time and said in the right way.
R: for Relax A speaker needs to do so. Take a deep breath in and begin. Feel & be relaxed.
S: for Stance Avoid an unusual stance
T for Thank You The nicest way to end a speck. Politeness pays.
U: U have to decide whether to speak or not to speak. The choice is yours. The more you speak, the better for you.
V: for Vocabulary The power of words is tremendous. Use adjectives and adverbs to embellish your speech.
W: for Wait till you have the attention of your audience. Do not start right away. Pause a while before you begin.
X Y Z: follow these pointers for effective speaking and SUCCESS WILLL BE YOURS.

THE NIGHT OWL'S NET

2008-09-05T05:05:00.000-07:00

Every night the night owl's meet
Each other to hear and greet
The roll is taken every night
The controllers urge the owls with all their might
The Net controllers are om Vispy on one day
With sister Pervez on the other day
These are the dedicated duo who toil daily to swell the numbers
Sometimes end the net calling cucumbers
Owls call from near and far away every night
To check their sets if they are right
Others stay on to ragchew after the net
Various topics every night are on the net
Now come on boys and girls we can have some fun
With two repeaters under the sun
Sometimes we have some SOB's on call
Who howl and tend to spoil the ball
The first to check is om Bob
Always tries the first place to Hog
The next in line is PDN
Who comes on every night out of his den
The Joker comes off and on
With his jokes he turns us on

To be continued in installments

FEMTOCELLS

2008-08-31T22:05:00.000-07:00

Femtocells , known as Acess Point Base Stations are small devices that boost cellular networks around areas in the interior of buildings that might have low signal strength. A femtocell is no different from a wireless router and are about the size of a paper back. Femto cells route the signals from upto 5 mobile phones through a broadband connection and pass them to a service provider thereby bypassing the convectional phone to tower path, GSM,CDMA and UMTS connections are currently supported by femtocells. Femtocells benefit both customers and operators. Customers benefit by improved coverage, lower costs per call, longer battery life and usage of multiple phones and line on the same connection. Operators get more customers by minimal infrastructure investment and reduced congestion in the wireless network. Therefore its a win-win scenario for everyone involved

INCOME TAX CALCULATION

2008-08-29T22:08:00.000-07:00

Calculate Tax as per Pre Budget 2007-2008
SALARY & ALLOWANCES
BASE SALARY
INCOME FROM OTHER SOURCES (BANK INT ETC)
GROSS SALARY
DEDUCTIONS
LESS INTEREST REPAYMENTS OF HOUSE LOANS
LESS PROFFESSIONAL TAX
LESS INTEREST ON EDUCATION LOAN REPAYMENT
LESS PRE TAX DEDUCTIONS U/S 80CCE ( 80C, 80CCC, 80CCD )
LESS PRE TAX DEDUCTION 80D
TOTAL TAXABLE INCOME
A quick ready formula for calculating your income Tax returns
COMPUTATION OF TAX
INCOME TAX ON TOTAL INCOME
(ADD SURCHARGE (B)
TOTAL TAX A+B
ADD EDUCATION CESS (@ 3% O
TOTAL TAX, SURCHARGE & CESS PAYABLE

UHF AMPLIFIER

2008-08-29T21:56:00.000-07:00

This is a UHF amplifier I built it is useful for Hams who live in fringe areas and would like to improve their reception. The ic is availible in the local market.

HOW TO STOP A DEMONIC ATTACK

2008-08-29T21:52:00.000-07:00

How to Stop a Demonic Attack

The Teaching of Occultic Arts
"Moreover Azazel taught men to make swords, knives, shields, breastplates, made them see that which was behind them, and the workmanship of bracelets and ornaments, the use of paint (cosmetics), the beautifying of the eyebrows, the use of stones of every valuable and select kind(silver, gold, diamonds, rupees, etc.), and of all sorts of dyes, so that the world became altered. Impiety increased; fornication multiplied; and they transgressed and corrupted all their ways." The Book of Enoch Chapter 8:1-2.
Fallen Angel Name
Occultic Art Taught
Azazyel
War, Vanity, Fornication
Amazarak
Sorcery, Spells, and Witchcraft
Armers
Removal of Spells and Curses
Barkayal
Astrology
Akibeel
Divination
Tamiel
Astronomy
Asaredel
Shamanism
Yekun
Seduced the Watchers
Kesabel
Taught Shape shifting
Gadrel
Seduced Eve and Introduced War
Penemue
Revenge, Writing, & Paper
Kasyade
Birth Defects & Abortion
Tabaet
Bite of the Serpent
"Thou hast seen what Azazel has done, how he has taught every species of iniquity upon the earth, and has disclosed to the world all the secret things which are done in the heavens. "
'Samaza also has taught sorcery, to whom thou hast given authority over those who are associated with him. they have gone together to the daughters of men; have lain with them; have become polluted; and have discovered crimes to them (Oral Sex). The women likewise have brought forth giants (Gibborim)." The Book of Enoch Chapter 9: 5-8.

Azazel
"Then he (Aaron) is to take the two goats and present them before the Lord at the entrance to the Tent of Meeting. He is to cast lots for the two goats--one lot for the Lord and the other for Azazel (5799). Aaron shall bring the goat whose lot falls to the Lord and sacrifice it for a sin offering. But the goat chosen by lot for Azazel (5799) shall be presented alive before the Lord to be used for making atonement by sending it into the desert to Azazel (5799)." Leviticus 16:7-10.
Azazel: Desert Goat, Scapegoat, Demon of the Desert, a Fallen Angel who seduces men to do evil; Devil (Origin), name of the spirit supposed to have his abode in the desert; Paradise Lost (Milton).
Azazel may be the trace of illicit worship of demons, demonesses, and satyrs.

VARIALE VOLTAGE PWR SUPPLY

2008-08-29T00:03:00.001-07:00

WOMAN SUPRISE TRICK

2008-08-28T23:46:00.000-07:00

MAINS INDICATOR

2008-08-28T23:40:00.000-07:00

MOXON ANTENNA

2008-08-28T23:37:00.000-07:00

NEW ABC

2008-08-28T22:54:00.000-07:00

The New Alphabet
A is for Apple, and B is for Boat,
That used to be right, But now it won't float!
Age before Beauty is what we once said,
But let's be a bit more realistic instead.
Now A's for arthritis;
B's the bad back,
C is the chest pains, perhaps car-d-iac?
D is for dental decay and decline,
E is for eyesight, can't read that top line!
F is for fissures and fluid retention,
G is for gas which I'd rather not mention.
H is high blood pressure--I'd rather it low;
I for incisions with scars you can show.
J is for joints, out of socket, won't mend,
K is for knees that crack when they bend.
L for libido, what happened to sex?
M is for memory, I forget ! what comes next
N is neuralgia, in nerves way down low;
O is for osteo, the bones that don't grow!
P for prescription's, I have quite a few, just
give me a pill and I'll be good as new!
Q is for queasy, is it fatal or flu?
R for reflux, one meal turns to two.
S for sleepless nights, counting my fears,
T for Tinnitus; there's bells in my ears!
U is for urinary; big troubles with flow;
V is for vertigo, that's "dizzy," you know.
W is for worry, NOW what's going 'round?
X is for X ray, and what might be found.
Y is another year I'm left here behind,
Z is for zest that I still have-- in my mind.
I've survived all the symptoms, my body's deployed,
And I am keeping six doctors fully employed!!!

ROMANCE

2008-08-28T22:38:00.000-07:00

STORY OF ROMANCE
One day over a drink two old men met
To discuss their children who were to wed yet
Their spouses agreed this was fine indeed
Thus began the long romance
The couple took no chance
Quickly put on the ring on each others finger
And let the romance linger
Cause it is good to be engaged to a Sailor who has changed the fortunes of the house
With a choice of a spouse
M was entrusted with preparations for the day worked with a will and made night day
With a flock of helpers whom he trusted
He made easy work of the job entrusted
The anchor was made, The shackles put on
The table decoration looked good with lifebuoys on
Glasses that cheer to the couple's health
Wish them happiness and lots of wealth

HAMFEST COCHIN POEM

2008-08-27T23:58:00.000-07:00

HAMFEST COCHIN
The three musketeers of Dhansag net
And Savio who wished to join them yet
Did finally to C.S.T. arrive
In various ways did drive
Alas the train was late
The foursome had to wait
The first to arrive was Savio Athayde
Confused about the bags someone did hide
Chased all the cabs that stood
Angry and swearing,was in a bad mood
The loss was discovered
When the bags were uncovered
Did Savio finally cool down recovered
The American Fox next on the scene did arrive
Took charge of the baggage and did move
To platform No 12 the whole lot did settle
To wait for the Joker and his bottle
The Joker as usual was late
Beads of sweat was on his Pate
Cursing about the train being late
The journey was pleasant
The joker was incandescent
His Birthday was celebrated
Without being inebriated
With chocolate cake and sweets galore
From Sydil's kitchen he cried for more
The joker was relaxed
Cause his brains were not taxed
He kept the crowd entertained
With jokes till they were all drained
Sleep took over
For us it was all over
OM SHANTI OM
The train arrived at Cochin town
The shepherd paced the platform up and down
No reception committee was present here
To greet the musketeers who landed there
The flock was herded to Cochin Towers
To settle in rooms and freshen like flowers
The musketeers then split each one his way
For personnel chores took different cays
The joker and yours truly
With Kishore and family
Landed in Jewish town for spices and cashews
Met with Amit and Yl, brother Raj and hit a ragchew
The purchase done, we returned
To Cochin Towers for our stomachs burned
Savio Athayade opened shop, the room was littered with crap
To ready the S.T. Special which was in parts.
The XCVR assembled, testing began
Savio was really in a can
The dummy load heated
Cause the rig was ill treated
The driver oscillated
To tame the whole set
Was a miracle yet
Yours truly was taxed to get the set going
Used gentle touch and got the RF flowing
Tired and happy we tucked into bed
Alas it was a miserable night we shed
For mosquitoes in large numbers did troop
Into the room the suckers did creep
To feed on blood and disturb our sleep
The morning dawned the musketeers trooped
For registration to the venue approached
The crowd was huge, familiar faces we did see
The registration done we were filled with glee
Breakfast was announced, to the banquet hall we fled
Idli. Dosa sambar and coffee we we were fed

WIRESHARK

2008-08-26T22:14:00.000-07:00

Wireshark is a free and open source network packet analyzer. If you are having problems with your internet connection is constantly getting congested, then you can use wire shark to examine the cause of the problem. There are chances you might find the virus or worm to be the cause of this congestion. This software is easily downloaded from the net. I use it and found it to be very useful