Submit Your Poems
Get Your Premium Membership


(Show Details...)
Bloggers Photo

Radio waves

Blog Posted:7/1/2011 3:04:00 AM

Radio waves
Being a sometimes Ham radio operator, vk4pr.
I’m interested in this subject

Yes radio waves, tv waves, are all in the air around you, all you need is something to grab em.
A tuned circuit, a crystal set does it ....hook its antenna connection to a long wire and the radio waves come into it. The wave you want is grabbed by the tuner part of the crystal set .
A trap is used to get it?
In your battery radio you will see the tuning capacitor which moves as you change channel.
Alongside it you wil see a ferrite rod maybe with lots of wire wound on it.
So what you have is a movable condenser/capacitor in parallel with it sort of grabs the radio wave
at variable frequencys.
At the frequency you have selected or found by moving the condenser part ..Then the radio wave at am radio might be 512,000 times a second, how often it cycles per second, frequency vibration .
(we vibrate 6 times a second I’m told…10 times might be fatal, they tested that idea too, after an elevator buzz was making people sick in a building)
They say hertz per second but it used to be cycles per second 50 years ago.
So the aerial brings the frequency into the radio tuned trap of the coil and capacitor at 512kilocycles per second. Then it loses half or its cycle passing through a diode one way valve ( a one way only gadget) to get the voice audible . Now it goes to your crystal headphones so you hear the voice, or it goes to an amplifier and your woofers.

11 metre Cb radio 27 million cycles per second , used a quarter wave antennae about 9 foot long on your car. Good for taking out fluros at drive through bottle shops
But 2 metre ham radio at 146 million cycles uses about a 19 inch long quarter wave antennae. Frequency faster ariel gets shorter. It all works if you use maths . The mobile phone /radio uses a tiny antennae on it 2way radio and transmits a few milliwatts of tickle in your ear to the tower and your friend.
468 divided by 27 = 17.3333333333333333 etc feet so split it in the middle it will resonate around
27 megarhertz our cb frequency , half wave ant. Shorten or make longer to change the frequency per second. on your car you use half 8.6666666 feet the car body becomes the other half of a tuned circuit, a quarter wave vertical antennae.
So shorten length of vertical antennae to go back towards 28 megacycles.....faster cycle per second Shorter antennae...
The Ark of the Covenant might have been a radio it seemed to be a big capacitor and had dangerous voltages on it that killed men if handled wrongly. The old time valve radios also have dangerous voltages like the valve final amplifiers on Kenwood 520 Ham radios of the past.
By Don Johnson

Please Login
  1. Date: 7/6/2011 1:50:00 PM
    Big D: What an interesting bio and great photo of ya, Mate! One of these days I'll figure out how to get my mug & bio on here - have to check that out with me grandkids who are much smarter than I. Glad to have you aboard and good on ya' always! G'day and keep them intriguing writes coming for our delight and amusement. Enjoy them all!

    Login to Reply
  1. Date: 7/2/2011 12:26:00 PM
    radio waves extend from your own vibes DON luv.. and yours are super powerful..oh... so feeling those frequencies much.. zzzzzzzzzap..

    Login to Reply
  1. Date: 7/2/2011 4:41:00 AM
    don, can this kind of frequency reach E.T.?? you hobby fascinates me:) hugggs!

    Login to Reply
  1. Date: 7/1/2011 11:26:00 PM
    On ya Jimbo get the spark, catch a shiela not a shark, gotta put me mouth in park, or i'll be slight abused:)

    Login to Reply
  1. Date: 7/1/2011 11:23:00 PM
    Apologies ladies for taking the floor. Just another hobby i'll get more. If things don't bring me back:)

    Login to Reply
  1. Date: 7/1/2011 11:20:00 PM
    Francine, Tune for smoke the old Hams said, something burning is it Ned, when your yakking on the line, fluros flash radiations fine. (an they arent turned on) so ya got more radiation in the room, than yer mobile 10 times soon. love, Don

    Login to Reply
  1. Date: 7/1/2011 11:13:00 PM
    Yes Chris D Monatomic might have been, lost the knowledge of it seems, moses boys were insulated, sparks were jumping smoking, inhalelated:) they drew short rocks to carry the Ark old mate:) Don`

    Login to Reply
  1. Date: 7/1/2011 11:07:00 PM
    On ya William 73s mate, have n old kenwood 520 in the cupboard, long time away from the morse code getting rusty in the head. Have to make me a dipole to get on 40mtr, all good mate....Don

    Login to Reply
  1. Date: 7/1/2011 9:44:00 PM
    Don, 73's from the States. K7ATX here. Call me on 40 meters almost any time. I'm ill and a shut-in so I have little that I am able to do but I can still X-mit. Also I love to use CW. I don't think anyone uses Morse any more. Best Wishes to you. Will AR

    Login to Reply
  1. Date: 7/1/2011 9:20:00 PM
    I love this stuff haha! Not sure about the Ark of the Covenant being a radio though? Could very well be true. Heard a legend about it housing a m-state power source(monatomic platinum and a philosopher's stone??), and that a few dudes were electrocuted after touching it wrong, and for two years, King David refused to have it stored in his city lol :D

    Login to Reply
  1. Date: 7/1/2011 5:28:00 PM
    I feel like Constance on seeing this blog.haha. but yes,I am happy that you have hobbies that are so interesting to you!

    Login to Reply
  1. Date: 7/1/2011 4:08:00 PM
    huh you lost me lol cory

    Login to Reply
  1. Date: 7/1/2011 10:19:00 AM
    the only ham radio I've ever seen is in the movie "Frequency".

    Login to Reply
  1. Date: 7/1/2011 7:53:00 AM
    'bout as good as it gets Don!!!!what a ride!!!! jimbo

    Login to Reply
  1. Date: 7/1/2011 3:44:00 AM
    You sure lost me....too technical.

    Login to Reply

My Past Blog Posts

Parts of the great puzzle
Date Posted: 12/7/2012 6:10:00 PM
Date Posted: 7/2/2012 6:45:00 PM
Blue curtains 4 health
Date Posted: 5/23/2012 4:57:00 PM
wellness 4 Carolyn
Date Posted: 2/17/2012 8:09:00 PM
Back up personalitys?
Date Posted: 12/30/2011 5:55:00 PM
Date Posted: 12/26/2011 7:40:00 PM
Merry Santa Claus
Date Posted: 12/6/2011 10:49:00 PM
computer problems
Date Posted: 11/27/2011 8:04:00 PM
Dead Motor Car
Date Posted: 8/1/2011 2:15:00 AM
Drat Attack
Date Posted: 7/22/2011 2:47:00 AM
Brave 400 Aussie boys
Date Posted: 7/14/2011 8:59:00 PM
Date Posted: 7/10/2011 9:48:00 PM
Date Posted: 7/8/2011 2:54:00 AM
Radio waves
Date Posted: 7/1/2011 3:04:00 AM
Bad horses
Date Posted: 6/27/2011 3:47:00 PM
Computer maintenance
Date Posted: 6/25/2011 2:16:00 AM
Brumby chasers 1900
Date Posted: 6/20/2011 11:56:00 PM
Don Johnsons Blog
Date Posted: 6/11/2011 10:08:00 PM

My Recent Poems

Date PostedPoemTitleFormCategories
3/28/2015 Century twenty one Rhymeadventure,
3/21/2015 ya Dead Rhymeadventure,
3/14/2015 Southern Cross Knight Rhymeadventure,
3/11/2015 elan vital Rhymeadventure,
3/9/2015 Satanic petty superich Balladadventure,
3/6/2015 60s Cool Rhymeadventure,
2/23/2015 grumpy drunkard ABCadventure,
2/15/2015 Scabs Balladeadventure,
2/15/2015 dhj at 35 Rhymeadventure,
2/11/2015 greed of a few Balladeadventure,
2/10/2015 KIWI NAPHAM Balladadventure,
1/30/2015 card from the deck Balladadventure,funny love,
1/29/2015 Spirit shoes Rhymeadventure,
1/28/2015 De View Rhymeadventure,
1/20/2015 Wants Balladadventure,
1/13/2015 Swiss secret bank accounts exposed Balladadventure,
1/11/2015 soars Rhymeadventure,
1/10/2015 FAITH Balladadventure,
1/7/2015 5 Billion poor Balladadventure,
1/7/2015 Soulful eyes Rhymeadventure,
1/1/2015 heart broke Balladadventure,
12/31/2014 Liberal tory predjucide Balladeadventure,
12/29/2014 the rich of hores Balladadventure,
12/25/2014 PATHETIC FAITH Balladeadventure,
12/14/2014 Aussie Flag o the Convict spawn Rhymeadventure,
12/14/2014 pathetic is Rhymeadventure,
12/7/2014 Equality revolution Balladadventure,
12/1/2014 Toad Marrow Rhymeadventure,
11/23/2014 bowels fowl Balladadventure,
11/23/2014 Utopia comes Rhymeadventure,
11/19/2014 Tumor consciousness Balladadventure,
11/16/2014 Evil at Balladadventure,
11/12/2014 Fight injustice Burlesqueadventure,
11/9/2014 not vix or wd40 Balladadventure,
11/9/2014 Maralinga Balladadventure,
11/8/2014 Luekemia Balladadventure,
11/3/2014 SNICKERING SODS Balladadventure,
10/19/2014 Moronicals Balladadventure,
10/15/2014 Putin v Abbot Balladadventure,
10/13/2014 Evil Angel Rhymeadventure,
10/12/2014 Void et Time suffering Balladadventure,
10/12/2014 Permission Balladadventure,
9/30/2014 alone but crowded Balladadventure,
9/29/2014 Whaffor bertie Balladadventure,
9/29/2014 Mommas Balladadventure,
9/27/2014 LOve Hurts Balladadventure,
9/24/2014 Byron McGovern true story 1900 Balladadventure,
9/24/2014 beauty fades Balladadventure,
9/21/2014 Pelican 20-20 Balladadventure,
9/19/2014 Dementia Schizophrenia Balladadventure,
9/12/2014 Electric car by radio powered Balladadventure,
9/10/2014 Pickles n Moogah Balladadventure,
9/10/2014 Clay Balladadventure,
9/8/2014 reality burned Balladadventure,
9/1/2014 returned to sender Balladadventure,
8/23/2014 Green at Soylent Balladadventure,
8/23/2014 intuition light Balladadventure,
8/18/2014 Injustice Balladeadventure,
8/13/2014 Japanese Scout 1942 Balladadventure,
8/7/2014 Greed referendum needed Balladadventure,
8/6/2014 Soul-mind Rhymeadventure,
8/5/2014 Busted romance Rhymeadventure,
8/4/2014 Consider the Chimpansee, Balladadventure,
7/30/2014 Aussie Joe Crow Rhymeadventure,
7/29/2014 60s threads Balladadventure,
7/28/2014 7 levels suffer pain Balladadventure,
7/21/2014 Dog-human Rhymeadventure,
7/21/2014 Filthy rich Balladadventure,
7/18/2014 a jolly Drongo Balladadventure,
7/16/2014 Dementia a riding Rhymeadventure,
7/15/2014 Indestructable drop Rhymeadventure,
7/13/2014 Dreams Rhymeadventure,
7/9/2014 Spirit-Surfer Rhymeadventure,
7/8/2014 The Duality of man 2 Balladadventure,
7/6/2014 Ned Kelly DNA Balladadventure,
7/1/2014 Tory doors Balladadventure,
6/27/2014 repay the debt of old Balladadventure,
6/27/2014 Atlantis dipped Balladadventure,
6/24/2014 The Prince of self delusion Balladadventure,
6/21/2014 Insanity of man Balladadventure,
6/17/2014 Culling2 Balladadventure,
6/14/2014 Mis-fit human Rhymeadventure,
6/12/2014 Sue Hickey reminising Balladadventure,
6/10/2014 Harry and George Balladadventure,
6/2/2014 Trish n Joan Balladadventure,
5/27/2014 UNIVERSITY 4 THE POOR Balladadventure,
5/27/2014 chocolate covered cherries Balladadventure,
5/23/2014 the ID, storm, Balladadventure,
5/18/2014 Insincere Balladadventure,
5/18/2014 Babysitting bloody Goats Balladadventure,
5/8/2014 Kokoda 1942 See-saw battle Balladadventure,
4/25/2014 Duality of man Balladeadventure,
4/12/2014 becos Balladeadventure,
4/12/2014 purple stone Balladeadventure,
4/11/2014 INSANE Balladeadventure,
4/11/2014 New front door key Balladadventure,
4/11/2014 CALATHUMPERIANS Balladadventure,
3/27/2014 The modern Knight Epitaphadventure,
3/26/2014 Winders protection racket Balladaddiction,
3/23/2014 Knowing Knob Enlightenment Balladadventure,

My Photos

Fav Poems

No Fav Poems Selected

Fav Poets