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Messages - Sparks

Pages: [1] 2 3 ... 6
2
Morse Code / Re: Can Morse Code Still Save You?
« on: September 04, 2018, 08:49:12 AM »
Radio Relay International  after action report on exercise contains useful information about QRP CW for emergency communication.
http://radio-relay.org/wp-content/uploads/2018/05/RRI-2018-Q1-and-Q2-Exercise-Evaluation.pdf

In that PDF I found this:

Quote
The RRI cycle of quarterly exercises is designed to test specific assets and methods in a sequence leading to more complex scenarios. This first quarter exercise was designed to test radiotelegraph circuits, whereas the second quarter exercise, for example, was designed to test two digital networks.

In the case of the first quarter exercise, it should be noted that radiotelegraphy (“CW”) is an extremely effective mode for portable, forward-deployed high frequency communications. It offers minimal DC power consumption, elegant equipment simplicity, light weight, few failure points and a capacity to clear a higher volume of message traffic than voice methods, often at a ratio of three to one in a given time- period. With the emphasis on battery power and renewable energy schemes, the use of CW circuits was the logical mode selection for this exercise.

Three frequencies were assigned for use in this scenario:

7115-kHz
10115 kHz
14115 kHz

These are the default RRI watch frequencies (QSX) for the CW mode. In addition, they are specified priority circuits for use during a communications emergency.

Are these three frequencies agreed upon elsewhere than in a "Radio Relay International" context?

3
Morse Code / Re: Learn How To Increase Your Morse Code Copy Speed.
« on: August 28, 2018, 08:13:11 PM »
I downloaded the app "Morse Machine" by IU4APC …

https://alphapapacharlie.com/2015/01/26/morse-machine/

Seems it is, alas, only available for Android devices. Even if an iOS version is promised in a reply to a 2015 comment.

4
Antennas / Re: Successful Wire Antennas.
« on: August 04, 2018, 10:19:01 AM »
Strange, there are 237 pages in that PDF but when I download it I can only look at 145 of them …

The PDF is actually only 32 pages long. It starts with the TOC and then moves to Chapter 3 Dipoles, at page 42. Then there are excerpts of other chapters, too. So the PDF is only a sample of the book.

Read more about the book in this review: http://qrznow.com/successful-wire-antennas/

They link to the same sample PDF, except this one has copyright watermarks on every page:
http://www.rsgbshop.org/acatalog/PDF/Successful_Wire%20Ant_sample.pdf

I found the book on Amazon:
https://www.amazon.com/Successful-Wire-Antennas-Ian-Poole/dp/1905086776/

5
Morse Code / Re: Straight Key Cable [for Yaesu FT-817 & FT-818]
« on: July 21, 2018, 11:22:16 PM »
• I’m working on getting a cable for my straight key & Yaesu FT-818 and my Youkits HB-1B.
• My straight key is the J-45 (J-37 with leg clamp) military style key.
• The Yaesu FT-818 states I need a 3.5mm 3 pin jack.
• I’ve searched the web, YouTube and searched ham radio retail  sites. I can’t seem to figure this one out. Thanks for your input.

I have to find a solution for my still unused Yaesu FT-817ND, and I assume the two are similar in this respect.

The question is also discussed here, with some solutions suggested:

http://forums.qrz.com/index.php?threads/ft-817nd-keyer-setup-question.227962/
https://www.eham.net/ehamforum/smf/index.php?topic=39354.0
https://www.quora.com/Amateur-Radio-How-do-you-convert-a-two-prong-Morse-key-to-a-3-5mm-plug

6
Data protection that protects you from reading foreign press... Reminds me of the Berlin Wall, which the Soviet and their vassal East Germans stated was to protect workers from attack by the western fascists.  With 'protectors' like that, who need enemies ?
The problem seems to be that small U.S. newspapers don't understand how to handle the GDPR requirements. The large ones do like this example:
Quote

 By clicking “Agree,” you consent to our Terms and Conditions and Privacy Policy and the use of technologies such as cookies by U.S. News & World Report and third parties we work with to deliver relevant advertising on our site, in emails and across the Internet, personalize content and perform site analytics. Please visit our Privacy Policy for more information about our use of data and your rights. Please note that if you do not agree, you will not be able to access our site.

7
Thanks a lot for posting that article!

Great read, and I have had many similar experiences both with radio gear and in other areas of life.

(Cannot help thinking though, if both parties had been CW guys, that amplifier wouldn't have been necessary …)
Edit: Typo …

8
https://www.starherald.com/hemingford/opinion/making-do-with-what-you-have/article_018c654e-86ad-11e8-9247-df74bda297bc.html

I see this more and more often. Annoying!

Quote
451: Unavailable due to legal reasons
 
We recognize you are attempting to access this website from a country belonging to the European Economic Area (EEA) including the EU which enforces the General Data Protection Regulation (GDPR) and therefore access cannot be granted at this time. For any issues, contact news@starherald.com or call (308) 632-9000.

The clickable link in there goes here: https://gdpr-info.eu/

9
Morse Code / Re: Yaesu CW Filters
« on: July 11, 2018, 12:46:45 PM »
However 817/818 is not a good plattform for morse Code, in fact, I sold it and get a Elecraft K2.

Please tell us more. I am considering selling my two years old and unused FT817ND.

Why do you consider it not a good platform for Morse code (CW)?

10
There are a few radios I want to buy at the moment...

What about the Yaesu FT-817ND? Have you get one already? You have often stated that you'd like to own one, if memory serves me right.

https://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=102&encProdID=06014CD0AFA0702B25B12AB4DC9C0D27

What about this one?: https://www.universal-radio.com/catalog/hamhf/0818.html

11
New To Radio / Re: QRP from a beginners view
« on: June 02, 2018, 02:34:37 AM »
A great forum to set up skeds with people is the Straight Key Century Club (SKCC). They have a webpage just for setting up skeds with other people who use a straight key. It's a great way to get your feet wet with CW. Since everyone is using a manual key, the speeds are slow and the people patient.

I looked into that a while ago. Think I read somewhere that they consider semiautomatic bugs (e.g. the original Vibroplex) to be manual keys. I am not able to relocate that rule now; is this correct?

13
Morse Code / Re: QRPp // HF Morse at LESS Than One Watt
« on: June 02, 2018, 12:09:24 AM »
To paraphrase Kopernicus:  'And yet, QRP works.'

I did study the history of astronomy, for a long period. Kopernicus was my great hero then and now. However, that famous quote is attributed to another great astronomer, a century or so later:

https://en.wikipedia.org/wiki/Galileo_affair
https://en.wikipedia.org/wiki/And_yet_it_moves

14
Morse Code / Re: 'Morse Code as a Language'
« on: May 30, 2018, 11:55:58 PM »
https://www.youtube.com/watch?v=9Kg5FDhO6uU&list=PLdwkbjBNJkwLazdN5TqJ1y9uGnoVpsfQw&index=1
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':

http://www.amateurradio.com/learn-morse-code-all-the-cool-kids-are-doing-it/
http://www.k4icy.com/cw_language.htm   >   https://w6rec.com/learn-morse-code/
http://morsefusion.com   >   http://morsefusion.com/faqs/
http://rageuniversity.com/PRISONESCAPE/RADIO%20AND%20TV/Learning_Morse_Code.pdf



15
Morse Code / Re: The article that inspired me to learn code
« 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.

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