Thursday, 16 April 2015

QRP To The Field

Coming up on Saturday, April 25th, is this years edition of QRP to the Field.  I always enjoy this event although I don't always submit my results.

This is one of the very few QRP events that has a SSB category so the IC-703 will be getting another workout this month.  It's funny as I was talking about selling the radio but I find I'm using it more and more these days, so it's off the market.

The event also includes the use of local SOTA Summits......which we don't have in VE3 Land, but it's still a great excuse to head out and operate portable from you favourite park bench in some little park.

SSB Frequencies to use are: 3.985, 7.285, 14.285, 21.385, and 28.885.

This event runs from 0900 to 1800 EDT......hope to work you on the bands that day.....and that means you too QV !!





Sunday, 12 April 2015

Ontario QSO Party 2015

Coming up next weekend is the Ontario QSO Party.  The airways should be alive with VE3 and VA3 stations calling CQ.

I hope the propagation will be better than we have had over the past week otherwise we're in for a pretty slow and dismal weekend.

The rules for this event can be found HERE.

I had the IC-703 out today checking it out as I will be doing the contest as a QRP station using my VE3FCT callsign and handing out contacts from the "very rare" Frontenac County.  Not sure if I will operate portable or stick around the shack, I'm leaning to operate portable, but not sure where I should do that from.

Hope to work some of you guys next weekend............perhaps even that VA3QV character!!



Thursday, 2 April 2015

Update on the W3EDP Antenna.......

A few years ago I wrote a blog entry on the W3EDP Antenna (HERE).  That article seems to be one of the more popular ones I have posted according to the stats for this blog.  The W3EDP is a good multi-band antenna that gets a bad rap from some sources, but it doesn’t deserve it at all.

Recently while surfing the net I can across a couple of articles written by Fred Benson, NC4FB, about some experiments he had conducted using the W3EDP antenna.  Knowing how popular this antenna is with the portable operators in Eastern Ontario, I had a good read of them.


Http://www.nc4fb.org/wordpress/optimizing-the-w3edp-antenna/

There is some interesting information in those articles and I decided to experiment on my own.  I build my first W3EDP several years ago, and have used it mainly for Winter Field Day and Chillycon, places I want to get a working antenna up fast.

I chose to try the twin radial version, one radial of 33’ that is put in line for use on 80m and 40m, and a 17’ radial that is used for 20m to 6m.  Only one radial at a time is used.  Used with a 4:1 balun with these radials the antenna works like a charm.  I’ve also tried it with a 9:1 balun with success as well.  I’m going to use my analyser and record the difference between the two different baluns, and I will post that information here.

This antenna can be set up in any fashion that you like, inverted L, inverted V, sloper, or as a flat top, it works very well in any configuration.   It’s definitely worth while building and having in your antenna arsenal.


Another good article can be found HERE

More real experimentation is needed on this antenna.  Once the weather warms up I can get back at this..........hopefully next weekend! 

Sunday, 29 March 2015

CQ WW WPX Contest 2015

Well, it's over for another year............let's hope CQ Magazine manages to survive and sponsor it again next year.

Conditions when we kicked off at 0000Z Saturday were just great.  Within minutes I had worked ZL2IO in 10m and got him on the first call with 10w.  New Zealand was quickly followed by Moldova, San Marino, French Guiana, Japan, and Morocco, and I had a blast!

After a few hours sleep and coffee with the boys, it was up and at them again Saturday morning.  The propagation numbers for the morning were SFI=137. SN=109. A Index=8, and the K Index= 3.  Bands were very noisy and had some QSB.  On 20m I could only hear US stations calling for Europe, 15m was full of Europeans calling North America, but they weren't hearing us calling them.  The only decent band was 10m and that was full of Caribbean stations, and I think I worked them all.

Again my three big bitch subjects have to be mentioned.....Hispanic stations giving their callsigns at triple the speed of light.  These guys need to understand that if we can't make out your callsign we are not going to work you.  Then there were the LIDS tuning up right over the calling stations....why do they do this?  And then there were those "Alligator" stations again who were all being received here at 59+++ yet they couldn't hear the stations replying to them at all.  More proof that 1500w is no better than 100w at times.

The main band in use on Saturday was 10m and it was pretty good.  I had the occasional foray to 15m and 20m but really didn't have enough luck there to stick around.  40m opened up in the evening and I made a few good contacts into Europe there.

Sunday was a waste of time.  The bands never seemed to open here, and when they did they had some pretty good deep QSB on them.  The propagation numbers on Sunday were the same as on Saturday.  10m and 15m seemed to be totally dead most of the time with not a station to be heard on them, and 20m was full of US stations calling CQ looking for Europe.

My final score was 134 contacts with 110 multipliers, and I worked 81 countries.  So I guess overall it wasn't that bad.....the lack of constant action just made the weekend drag on and I found that it just wasn't very enjoyable this year for me.

So, when's the next contest ???????

Thursday, 26 March 2015

Problems with an IC-7000

One of the members of the Frontenac Radio Group, my local club, had an issue yesterday with his ICOM 7000.........the radio would turn off as soon as he modulated on transmit.  After an incredible period of frustration checking coax connectors, RF feedback in the shack, too much mic gain, too much compression and reading the service manual for clues he ran across an article in QRZ that mentioned a possible voltage drop.

Interestingly, as soon as he spoke into the mic on full power (100 watts) the current should be about 15 to 25A and the voltage should remain constant at 13.8 to 14.0 volts, if not , the ICOM shuts down and then reboots in a few seconds.

The ICOM power cord has two (2) 30A inline fuses. The article suggested that one should pull them (they are auto style bayonet type) and check the lugs for any corrosion or water damage.  He pulled both fuses and thoroughly cleaned the lugs and reinstated them back in the power cord. Voila, he had full power and the rig did not turn off.

It seems the ICOM is very voltage sensitive below 13 vdc and will automatically shut off. When he tried to power up the transmit mode there was a demand for high current and the resistive contacts made by the fuse blades dropped the voltage below 13 volts and the rig shut down. 

So there you have it, an easy fix to a very frustrating issue.  Hopefully Derek's experience will save you from learning some new swear words if this happens to you and your IC-7000.