Month: October 2014

http://en.wikipedia.org/wiki/Identical_particles

For each single-particle state, r, the occupation number n_r is defined to be the number of the particles in that state.

Let’s say that there are five single-particle states {1, 2, 3, 4, 5}. Or if you prefer to think in our favorite things, the states could be, say, {7022kHz, 7023kHz, 7024kHz, 7025kHz, 7026kHz}.

The set of occupation numbers {n_r} describes a many-particle state, or a band condition in our terms.

For fermions, the occupation number n_r can only be 0 or 1. The state is either empty or is occupied by just one fermion. So a many-particle state could be, for example, {n_r} = {0, 0, 1, 0, 1}, which means you hear a CQ on 7024kHz and 7026kHz.

On the contrary, for bosons, the occupation number n_r can be any non negative integer. An example for this case is {n_r} = {1, 0, 99, 999, 9999}, a situation you will observe when a very rare station is announcing “UP 2” at 7022kHz.

So, would you like to be a fermion or a boson?

http://10fastfingers.com/typing-test/english

This is my keyboard typing speed, and not the speed with a paddle or a bug key. I was using a lousy (and cheep) keyboard, and I could have done better with an IBM Selectric, I should say.

http://www.ratatype.com/learn/average-typing-speed/

Anyway, you can read and speak much faster than you send morse code by almost any means, therefore we must say that the speed is not all important. There are some advantages in slow communications.

So what WPM is most comfortable and enjoyable for you, assuming the signal report is 599/599.

I do not have any particular opinions on this, and this is only my impressions with no scientific or medical grounds.

As for me, CW is a language or a foreign language. It is definitely so in a sense that I only partially understand them, feel disappointment and sadness when one does not understand the phrase, and still always wish and try to improve.

For your information, French is a foreign language for me, and alas so is CW.

So how do you understand the conversation in French? If it is not a solid copy, is it frustrating or still fun listening to the talk?

One of the favorite discussion topics among CW enthusiasts is whether there exits any relationship between the skills and training required to be a good CW operator and a good musician.

I do not think I am eligible to add any comments on this old theme, because I lack experience and capability in the both fields.

Nevertheless, my personal belief is that there is definitely a strong correlation between the achievement levels as an operator and as a player. You can name many call signs as persuasive examples.

So here is a Gibson. Do you think I will prove my belief positively (a high level goes with another high level) or negatively (low with low)?

We CW lovers consider CW as music, and I can not help using any equipment that are designed for music, for example Zoom G3, for sending morse codes.

The sound file is here with the title of “CQ and Zoom G3.”

The sound was recorded as: IC-7410 side-tone monitor out -> (analog signal) -> Zoom G3 (Over Drive/Distortion/Delay and Reverb) -> USB/IF -> PC.

This is going to be something like AFSK operation, if to be employed for actual QSOs, but I suppose such mode of operations is acceptable for the people seeking for greater satisfactions out of CW communications.

For example, instead of elongated dash in “R” to show that you copied 100 percent, you stomp on one of your effect units. Sounds interesting?

My rig, IC-7410, does not have this function, so I always adjust my receiving frequency manually and visually by looking at the spectrum display provided by HDSDR.

Here is another type of auto tuning, which I did not know until recently.