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Recent Posts

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Morse Code / Re: 'Morse Code as a Language'
« Last post by gil on May 31, 2018, 05:46:18 AM »
Thanks Sparks!
Antennas / Re: Tuning the QRPGuys vertical tribander
« Last post by gil on May 31, 2018, 05:45:41 AM »
Hi, I think it will be fine, I don't think these inductors are conductive..

Morse Code / Re: 'Morse Code as a Language'
« Last post by Sparks on May 30, 2018, 11:55:58 PM »
This playlist was put on YouTube last week, perhaps of use to some of those who are learning Morse Code?

Unfortunately, these videos are not on You Tube anymore. I couldn't find them elsewhere, either.

As a consolation, I forward some links found by googling 'Morse Code as a Language':   >   >

Antennas / Tuning the QRPGuys vertical tribander
« Last post by vwflyer on May 30, 2018, 10:34:44 PM »
Hey guys,
After reading many positive  comments here about the QRPGuys vertical tribander I decided to get one. It went together quickly and after a little adjustment got it working with very low SWR on 20 and 30 meters. I was using the built in SWR meter on my YouKits HB-1B. I know not the most accurate but it's what I have for QRP levels. Resonate on 40 meters was way to low so I wound up removing 2 wraps from the inductor and that got it up to where I need it. I was using just a short 3 foot coax jumper to connect to the rig. I decided to add 6 feet of coax to make sure it doesn't change anything. On 20 and 30 it didn't change much but on 40 it is now resonate way up in the voice part of the band with the extra length of coax attached. That is, unless I have my hand under the back of the rig, then the resonate freq comes back down to the CW part of the band. I'm thinking that I will probably operate this antenna with longer pieces of coax since I don't want to be tethered so close the the base of the antenna to operate. I can add a wrap or two back onto the toroid since I haven't yet snipped off the excess I had after taking two wraps off but that part of the wire is no longer insulated. What happens if uninsulated magnetic wire rests against the toroid? It will be fine as long as it doesn't come into contact with uninsulated wrap right next to it right? 
Morse Code / Re: The article that inspired me to learn code
« Last post by Sparks on May 30, 2018, 01:16:16 AM »
Thanks for the links! I made PDFs and archived on my Mac.

That must have been an awesome site, a pity it has been discontinued.
Batteries & Solar / Re: 18650 battery testing
« Last post by Andywragg on May 29, 2018, 02:45:39 AM »
Yeah I saw that product as well.

The Opus chargers arrived on Friday, but I've been away at a bushcraft meet over the weekend so didn't get chance to have a look at them.

I put the first 8 cells on the chargers yesterday. Some cells were below 3v but above 2v and the chargers still charged them to 4.2v irrespective. They are current undergoing a 3 cycle test since yesterday. I'm using the default 500ma charge and discharge rates, so a complete test takes around 27 hours.

The cells are 2800mah nominal based on the markings on the cases and the sleeve/ring colours. I'm already seeing capacity of over 2100mah for most cells.
Morse Code / Re: The article that inspired me to learn code
« Last post by RadioRay on May 28, 2018, 12:52:55 AM »
Found it on The Wayback Machine -

Pt. 1 -

Pt. 2 -

It's heart-warming to know that these articles helped you. Thanks for mentioning it.

RadioRay  ..._  ._
Morse Code / Re: CW Morse Code for Dummies
« Last post by Sparks on May 27, 2018, 12:25:30 PM »
Thanks Sparks. I clicked on it and it turns out that I was already following it!

Me too. Most likely, us "likers" and followers followed along automatically when they rebranded.
Morse Code / Re: CW Morse Code for Dummies
« Last post by gil on May 27, 2018, 05:17:19 AM »
Thanks Sparks. I clicked on it and it turns out that I was already following it!

General Discussion / Re: Registration will lead to confiscation
« Last post by Sparks on May 26, 2018, 11:49:35 PM »
I am perhaps too preoccupied with WWII in the Nordic countries. Norway was occupied by Nazi Germany from 1940 to 1945, and in 1941 the occupant decided to confiscate all radio receivers, almost half a million of them, from the general Norwegian population. Only the German occupants and their Norwegian Nazi collaborators were allowed to own radios. The main goal was to prevent Norwegians from listening to London where the King of Norway and his Government resided in exile. (They would later return triumphantly to Norway in 1945.)

Amateur radio was prohibited long before that, and all equipment was seized according to official registers of ham licensees, I was told by ham radio veterans many years ago.

Now this man had built himself a transceiver in 1939, but had postponed to sit for his ham license exam, so when the Germans arrived on April 9, 1940, he was safely under the surveillance radar:
See also:

I guess Gunvald Tomstad's story would have been a quite different one if he had been a registered ham.

I registered my ham license some fifty years ago. Then I had an interim period of forty years when I was not registered (did not pay yearly dues). A few years ago I contacted the relevant authority, and they gave me back my license and first C/S for life, for free. I can live with that.
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