Friday, May 6, 2016

You have two ears but only one mouth

Listen more than you send

In honor of Mothers Day this weekend here in the U.S. we recall what our wise Mothers told us... 
Listen more than you talk because God gave you two ears but only one mouth
Learning CW is more about learning to copy what you hear than sending.  So listen, listen, listen.

Listening to on air CW QSOs using your own HF radio... 

Of course the best CW copy practice comes while listening to stations using your own HF radio and having on-air QSOs. So make the most of your opportunities to listen to live QSOs from your home station.

Find conversations that are at different speeds for your practice copy.  In my experience, when I only practice copying higher speed CW for a time, my ability to recognize slower CW gets rusty so practice copying all speeds.  I was worked by a station some months back when I was sending at only 13wpm who came back on the second exchange and replied that I was too slow to copy and he quit the QSO.  I don't want to be like that.  

Along with copying QRS stations, practice copying stations that are well above your comfortable copy speed in order to stretch yourself. You will likely miss much of the conversation but your ability to start recognizing common words and abbreviations will increase. Another side effect I find is that when I listen to a 25wpm (well above my present copy speed) exchange between two operators who have equally strong signals, I'll usually copy one station better than the other.  I try to figure out why that's the case.  Something about that operator's style is easier to copy and when I discern why that is, I try to emulate it.

I want to be able to copy all speeds of CW; both to encourage new QRS operators and ragchew with the QRQ old-timers.


On Air Practice

Listen to on air CW QSOs using remote radios

When you don't have hands-on access to an HF radio or when propagation is poor at your QTH web SDR stations are great resources for CW copy practice. 

Web SDR stations are accessible from http://websdr.org and allow you to listen to CW anytime you have access to the internet.   Web SDR stations are available from around the world, potentially from countries you haven't been able to regularly hear from your QTH.  So it allows you to hear different sending styles from around the world.


Web SDR station

Listen to machine generated CW

When live CW is unavailable you still have machine generated CW as an option.  Practice copy of machine generated CW is a pale comparison to actual CW QSOs but it has it's uses and it's always available.  The Morse Trainer App for Android devices offers most features standard in other learning applications plus a built-in list of randomized top English words and an e-book reader.

Morse Trainer app for Android


Sights and sounds

This following video demonstrates the copy methods above.



So listen more than you send and your CW copy, as well as your interpersonal skills, will improve with practice at listening.


That's all for now

So lower your power and raise your expectations

73/72
Richard, AA4OO
http://hamradioqrp.com

Tuesday, May 3, 2016

Beep Beep - No not the Road Runner

Practice sending CW

Let's turn back the wheel of time a bit.  This entry is about how I practiced Morse Code earlier in in my CW Journey.  

My first key was a MFJ-557 practice oscillator.  I used to set it on the center console of my vehicle and practice sending code while I drove when I first practiced for my General ticket 9 years ago.  

More recently I used it as my straight key when I restarted my CW journey 9 months ago.  I compared it to my Kent Straight key back in September.

MFJ-557 Practice key with a 2m/70cm SWR Power meter as a background prop

The practice oscillator doesn't have to be used with the less than stellar, check that, absolutely terrible, Philmore straight key attached to it.  You can wire the ocillator to other straight keys or any manual key providing a radio-free way to practice your code anywhere you wish.

However, practicing with paddles is more complicated and requires the use of an external keyer or a radio with an internal keyer set to not transmit.

Your electronic teacher

You may think you're the bomb when it comes to sending code but it could be that you are bombing out on sending code others can copy.  You need an objective critic.

Morse Code Reader App
I use the Morse Code Reader to check what I send.  It isn't perfect but it's a good portable solution to act as your Morse Code critic.

Demonstration

Here is a video demonstrating use of an MFJ-557 practice oscillator with your standard manual keys.  Additionally I address configuring your HF rig's built-in keyer to practice with a paddle.

NOTE: I mistakenly say in the video that I have the keys wired in series.  That's not correct. They are wired in parallel.




Practice, practice, practice

It is better to send good code than receive



That's all for now...

So lower your power and raise your expectations

72/73
Richard, AA4OO

Thursday, April 28, 2016

Just the medicine for lowering impedance

Pill bottle balun

Jack-WD4E is a fellow NAQCC member and he sent me one of his QRP creations that I just had to share.

If you are staying on your meds you probably have the perfect enclosure for a QRP Balun.

If I could save RF in a bottle...
Jack encloses his home-brew wound toroids in pill bottles.  
The child and arthritis proof cap keeps the goods away from young and old alike...


Just what the doctor prescribed...



So re-purpose your medicare paid goodness and put it to work for you

Sorry all you entrepreneurs, Jack told me that he's already applied for the patent so you won't be competing with Facebook with this product idea.  He owns it.


That's all for now

So lower your power and raise your expectations

72/73
Richard, AA4OO
http://hamradioqrp.com

Wednesday, April 27, 2016

QRP in many languages

Thinking Multicultural

Ham Radio and CW is used and heard throughout much of the world.  We live among many great cultures, each with their own language.  

I thought it would be fun to see the QRP motto in different languages...
I am a typical insular American and only know a wee-bit from languages other than English, so if the translations below are in-error blame Google translate.

Translations listed alphabetically


Chinese Simplified:
降低你的力量,唤起你的期望

Czech:
Snižte své moci a zvýšit vaše očekávání

Danish:
Sænk din magt og Hæv dine forventninger

Dutch:
Verlaag je vermogen en verhoog je verwachtingen


English:
Lower your power and raise your expectations

Estonian:
Alam oma võimu ja tõsta oma ootusi

Finnish:
Pienempi teho ja nostaa odotukset

French:
Abaissez votre puissance et soulevez vos attentes

German:
Senken Sie Ihre macht und wecken Ihren Erwartungen

Haitian Creole:
Senti pouvwa ou ak ekspetasyon nou leve ti moun

Hebrew:
להוריד את הכוח שלך ולהעלות את הציפיות שלך

Hindi:
अपनी शक्ति को कम और आपका उम्मीदें उठाएँ

Hungarian:
Alacsonyabb a hatalom és a raise your elvárások

Italian:
Il tuo potere di abbassare e alzare le vostre aspettative

Japanese:
あなたの力を下げ、あなたの予想を上げる

Klingon (note: Klingon's aren't really the "QRP type"):
HoS ghuS je pIHbogh laHwIj pep

Korean:
낮은 힘 및 인상 기대

Norwegian Bokmål:
Lavere makt og større forventninger

Russian:
Опустите ваши силы и поднять ваши ожидания

Slovenian:
Nižje svojo moč in poveča vaša pričakovanja

Spanish:
Baje su energía y elevar sus expectativas

Swedish:
Sänka din makt och höja dina förväntningar

Welsh:
Eich pŵer a chodi eich disgwyliadau


Guess which language takes the most letters to spell the phrase?  
If you guessed German you're close, but another language listed above beat it by one letter.



That's all for now

I drive an QRP Italian car (Fiat 500 Abarth) so...
          Il tuo potere di abbassare e alzare le vostre aspettative

72/73
Richard, AA4OO

Tuesday, April 26, 2016

Where is that blasted noise coming from?

Evil RF noise in Ethernet over power adapters

My internet comes in at a corner of the house.  In that room I have my cable modem and a WIFI router.  Unfortunately the WIFI is seemingly non-existent at the other end of my house and especially in the upper floor opposite the WIFI router.  I tried re-orienting it and different antennas to no avail.

As a solution, I purchased an Ethernet over powerline adapter.  This routed the Ethernet through the house wiring to receivers plugged into outlets at points where the WIFI was weak, thus providing Internet access to those rooms.  The model I purchased also had ethernet ports which I needed for some of my older devices.

Ethernet over powerline seemed like an ideal solution.

Typical Ethernet over powerline adapter
All was well until a few months ago... I noticed a broadband noise on 40m and 80m in my shack.  I turned off the power to the house and switched to battery on my KX3 and the noise was gone.  So the interference was coming from my house.


The Search

I restored the power and fired up my Yaesu HT which has general coverage receive and tuned it to 7030kHz.  I walked around the house and conducted a bit of a fox-hunt for the offending noise.  The noise occurred at every outlet in the house !!!

I tracked it down to one of the Ethernet powerline receivers.  I unplugged it from the wall and discovered blissful silence.  I figured it had just gone bad.  It was out of warranty so back to the store I went and purchased another set.  This time it was a different brand, as the first one was no longer carried.

I installed the new adapters and everything was fine... for a time.


Fool me once shame on you, fool me twice shame on me

This week the noise returned with a vengeance.  Being wiser I went straight to the new adapter and unplugged it.  Yep it had gone bad again.  It was in warranty but I'd learned my lesson.  Whatever sort of RF filtering these devices have doesn't last.  Something zaps them.  I can't plug the receiver into a AC line filter because it stops it from receiving the Ethernet over powerline.

So out they came and back to the electronics store I went.  This time I purchased a WIFI extender with Ethernet ports built-in.  I'm back to blissful RF quiet (to a degree) at my QTH.

The moral of the story

If you have RF noise at your shack and you use these devices, check them out.  They could be the S9 noise culprit.  If you haven't bought them, take my advice and don't chance it.

I didn't think a WIFI extender would work for me because my laptop can't even detect the WIFI in some of my rooms but the WIFI extender (at least the Netgear model) seems to work well.  I now have blessed Internet in every room and no more broadband RF noise.

That's all for now

So lower you power and raise your expectations (and rid yourself of pesky RF noise)

72/73
Richard, AA4OO
http://hamradioqrp.com

Sunday, April 24, 2016

The Best CW training app for Android

Morse Trainer for Ham Radio

I'm always on the lookout for useful tools to help increase my copy speed and enjoyment of CW/Morse Code.  Training applications for beginners that teach letters and letter groups are great to get started but after you're making QSOs and copying at useful speeds those apps get a little stale. 

I recently wrote about using the "Morse News" RSS reader application for PCs. What I liked about Morse News was that it would send the text of news articles as CW.  I found it useful as a natural language trainer but I didn't like being tied to my PC during training.  

I wanted a similar application for my smart phone.


Just the mobile ticket to CW training


I'm not sure how I missed the "Morse Trainer for Ham Radio" app up to now but I've been using it for a couple of weeks now and really find it useful.


Morse Trainer in QSO Text Mode


Training Modes

This app has all the standard Morse Code training tools such as letter training, letter groups, callsign training etc. It also can send the most common 500 words as well as a random sample QSO training mode.  That's all great but what I really find useful is the ability to send your own text that you type or paste into the app and even... wait for it... an ebook reader!  

I must really be a geek but I find the ebook reader makes this a must have CW training app for me.  I converted some of my ebooks into plain text (using Calibre) and placed them in the CWTrainer's application folder on my smart phone.  I then choose the ebook mode, choose a book and it will send it as CW to me and keep track of where I left off.  I use this ebook reader mode to break the monotony of my long drive time.  

ebook mode

It's great fun to witness the expression of the person beside you at a stoplight hearing Morse Code pouring out of your car.  Priceless.

I keep the speed higher than I can comfortably copy so I'm missing some of what is sent. There's nothing like reading an action novel where you're missing half of what's going on. Did Tex get shot or not? I missed that word, hehe.

While this app doesn't read RSS feeds like Morse News application for PC's the text and ebook reader modes more than make up for it. The only bug to-date that I've noticed on my phone is that if I rotate the phone while it's playing it will reset where it was reading from back to the beginning. 

Here's a video from the application's author describing it's functions...


And here's a link to the application in the Google Play store.

https://play.google.com/store/apps/details?id=com.wolphi.morsetrainer

I have no affiliation with the maker of this application.  I just wanted to share.



That's all for now

So lower your power and raise your expectations

73/72
Richard, AA4OO

Tuesday, April 19, 2016

Stuck at 20wpm

Learning CW is not a sprint

I am in the 9th month of my CW / Morse Code journey and I will readily admit that in my case it has been slow, steady progress rather than a sprint.  Some weeks I think I'm doing well while at others I seem to be stuck or losing my copy skills, even with daily practice and QSOs.

During my off-air training I had raised my copy speed of news stories sent in CW to about 23wpm with 80% comprehension but as that happened I somehow reduced my ability to copy slower speeds. This was especially noticeable in on-air qsos. So I have gone back a bit to practice slower speeds. It's difficult to explain to myself how that happened. I guess I'd become accustomed to the higher speed characters and lost recognition at slower speeds.

As my copy speed has increased, my on-air sending speed has gone up which of course results in the other side of the qso being sent at a higher speed as well. I'm still very limited when I work an unusual FIST or someone who doesn't leave space between their words.  I'm normally starting more of my qsos with a paddle/keyer than straight key now at around 17-19wpm resulting in the responding stations generally working me a couple wpm faster than I send. I'm working fewer straight key operators as I work outside the SKCC frequencies  although I still seem to encounter lots of bug operators.  I happy to work a bug op because I switch to my bug for the qso.  I still enjoy the SKCC group and ops but I can't send well above 16wpm on a straight key so that is limiting me working faster ops. I generally can work the bug around 19-20 wpm on the SKCC frequencies but then I get bug operators coming back at me with 27wpm dits which I have great difficulty copying.

I began the habit of spending some time most mornings before work just listening to higher speed ops chat with each other at speeds around 25wpm on 80m and 40m.  There's almost always a couple of CW qsos going on at that speed between 6-7 AM Eastern time. I miss much of what they are saying but it's a good supplement to the machine generated copy study that I do at lunchtime and gets me used to real FISTS at my target speed of 25wpm. All this listening is of course followed up with actual qsos in the evenings and weekends as time allows at 17-20wpm.

Stuck at 20wpm

Stuck and need help from friends

20wpm seems to be a wall of sorts. I have difficulty reliably having real qsos at and above 20wpm. I've been stuck at this speed for a couple months now and would appreciate suggestions at moving beyond the wall as I find myself still having to ask stations sending above 20wpm with tight spacing to slow down.  Some days it seems to click, but when I think back I believe it has more to do with a good FIST of the other operator than my copy skill. 

All I can reliably say is real people rarely sound like machine generated CW and all the off-air machine practice in the world doesn't reveal my real ability to copy, or not copy, like real qsos do.
So the journey continues. I plan to occasionally blog about my progress and copy speed as much for my own record as anything else but maybe it will be of some encouragement to others as well.

That's all for now

So lower your power and raise your expectations

73
Richard, AA4OO