pipes callcq map

http://pipes.yahoo.com/pipes/pipe.run?_id=8f305e9fb12845891d03f3cf366454e2
some reason it gives me an odd loaction?

spot of DIY

one of those things we all need now and again.
http://vk5ajl.com/projects/SWRMeter.php
knowing the principals full well from my days in a radio job, so I had a go.
work you know but with one error swap names of FWR and REV meeasure port.
to this:

With matched terminations on the output ports,

1. A portion of the wave traveling from port 1 (input) to port 4 (output) is

coupled to port 3 (forward coupled), but not to port 2.

2. A portion of the reflected wave traveling from port 4 to port 1 is coupled

to port 2, but not port 3.

3. A portion of the wave incident on port 2 to port 3 is coupled to port 4, but

not port 1; and a portion of the wave incident on port 3 is coupled to port 1, but not

port 4.

 

thought I had a total miss-match with 50R load but did a few tests and googleing and got it right.

The reflected voltage is r times the incident voltage.  Since power is proportional to the square of the voltage, the reflected power, Prefl is (5/7)2 x 4 W = 2.04 W

and the power to the antenna = 4 W  - Prefl = 1.96 W

when I work out how to add gerber plot files I will

and a picture of my work.

how to get your own QrCode badge.
use http://imagecharteditor.appspot.com/ and copy paste away
and

Bob's your aunties cat??
works with Zebra apps J2ME
see more at https://developers.google.com/chart/image/docs/making_charts
graphs charts so on.

twitter call cq

a bit of code I've run up baseed on twitter search api. If you put #callcq tag in your post it will show up here by javascript magic. working on a map if you add geo coding data postcode, gps, QTH etc....
got the idea from http://www.twitwx.co.uk/.

I've stuck my first example on extra page on this site. but this is the main working. it wont run in a post.

<div id="results">
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){
var url='http://search.twitter.com/search.json?callback=?&q=';
var query='%23callcq';;
  $.getJSON(url+query,function(json){
   $.each(json.results,function(i,tweet){
      $("#results").append('<p><img src="'+tweet.profile_image_url+'" widt="48" height="48" />'+tweet.text+'</p>');
   });
  });

});
</script>

it's the spots

acrding to this http://hamwaves.com/propagation/
more spots higher the band you can use?

forcasting http://hamwaves.com/propagation/forecast.html

stil no muf(Mhz) = SUNspot*K

Gadget wigets continued

Why are not all Gadget widgets the same of HF predictions?

and

http://rigreference.com/solar

don't always show same traffic lights colors.
badge one has an explanation at http://www.hamqsl.com/solar2.html
that I'm trying to understand. but does not have any explanation I can find.
I'm going to compare them to what I hear on my trusty Sony portable and let you know which is more accurate.

CQ MAP?

Any one know how I could write a Gadgets, widgets or javascript to search twitter for #callingCQ and show anyones tweets with this tag. eventualy it could go on a map like http://uksnowmap.com/ or http://www.twitwx.co.uk/ had a look at their code but not sure about it can't get to bottom of it.

I suppose I could e-mail them?