CW abbreviation · Operating
PSE in Morse code
Standard CW politeness particle. Frequent in QRS PSE (please slow down) and similar.
Morse rendering
.--. ... .
Sent letter-by-letter with standard inter-letter gaps.
What it saves you on the air
This is the whole reason CW abbreviations exist. Sending PSE instead of spelling out “Please” cuts 51% of the airtime — 24 dot-units of keying saved every time you send it.
| Speed | PSE | “Please” | Saved |
|---|---|---|---|
| 13 WPM | 2.1s | 4.3s | 2.2s |
| 20 WPM | 1.4s | 2.8s | 1.4s |
| 25 WPM | 1.1s | 2.3s | 1.2s |
Timed with standard spacing: dit 1 unit, dah 3, letter gap 3, word gap 7. Work out any other speed on the timing calculator.
Meaning
PSE — Please
When this is used
Always appended, not standalone. Common combinations: PSE QRS (please send slower), PSE AGN (please repeat), PSE QRX (please standby).
Examples
| On the air | Plain English |
|---|---|
| PSE QRS | Please send slower. |
| PSE AGN | Please send again. |
| PSE K | Please go ahead. |
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