Paddles for left-handers: which side sends the dit?
By convention, the thumb sends the dits and the index finger sends the dahs. For a right-hander keying with the right hand, that puts the dits on the left lever of the paddle. Key with your left hand and your thumb lands on the right lever, so the simplest fix is to swap the two sides: the right lever sends dits, the left sends dahs, and your thumb keeps the dits.
You do not need special equipment for it. A setting in the keyer, or two swapped wires, does the job.
The convention, and why it is worth keeping
Rest your right hand on a paddle the way you would pinch a sheet of paper: thumb on the left lever, index finger on the right. Thumb for dits, finger for dahs. On a dual-lever paddle a squeeze closes both, and the keyer alternates, starting with whichever lever closed first; on a single-lever paddle you rock one arm between the two sides. Single-lever vs dual-lever paddles compares the two.
Nothing in Morse requires this arrangement. A keyer does not know which finger closed a contact, and nobody listening can tell. The reason to follow the convention is consistency:
- Advice written for paddle operators assumes it. “Thumb for dits” means the same thing to everyone.
- A paddle at a club station or a friend’s station will usually be set up that way.
- Paddle plugs are commonly wired with the dit on the tip, the dah on the ring and the common on the sleeve, so a paddle and a radio wired that way agree without any settings. Your radio’s or keyer’s manual will confirm what it expects.
So the real question for a left-hander is not which side is correct, but which finger you want on the dits.
Three ways to key left-handed
1. Mirror it, and keep the dits on your thumb. Key with your left hand and swap the sides, so the right lever sends dits. Your fingers do the same jobs as every right-hander’s, and any advice about thumb and finger applies to you unchanged. This is the choice that keeps everything else the same.
2. Keep the standard wiring, and send dits with your index finger. Key with your left hand on an unmodified paddle: the left lever, now under your index finger, sends dits, and the right lever, under your thumb, sends dahs. It works perfectly well. The catch is that you and the usual advice disagree, so a tip about squeezing “thumb first” will be backwards for you.
3. Key with your right hand anyway. Keying is a learned skill for everyone; neither hand starts out knowing it. Keying with the hand you do not write with also leaves your writing hand free to note down what you copy.
Whichever you pick, settle it before you build speed. Your hand soon learns which finger means dit, and unlearning that later is slow.
How to swap the sides
There are several places to make the swap, from cleanest to most permanent:
- In the keyer or the radio. Many keyers, and many radios with a keyer built in, have a setting that reverses the paddles, though not all do. The manual will say whether yours has one and what it is called. Where it exists, this is the cleanest fix, because the paddle and its cable stay standard.
- In software. If a program is your keyer, look in its settings for a choice of which key or lever sends dits.
- At the plug. Swap the two wires that go to the tip and the ring. The paddle is now left-handed with any keyer, but label the cable, because it will be backwards at anyone else’s station.
- At the paddle. Swap the dit and dah wires where they meet the paddle’s contacts. Same effect, and the same need for a label.
The swap works the same way on a single-lever paddle: the thumb side becomes the dit side, whichever hand you use.
Label anything you change. A reversed paddle at a shared station gives the next operator a baffling few minutes, because every character comes out mirrored:
| They meant | Its code | What came out |
|---|---|---|
| A | .- |
N, -. |
| K | -.- |
R, .-. |
| E | . |
T, - |
| S | ... |
O, --- |
That last row is worth knowing. On a swapped paddle, SOS comes out as OSO.
Straight keys and bugs on the left
A straight key has no sides. It is one lever that goes down and up, so any straight key works in either hand; the only change is where it sits. Put it to the left of your desk, where your left forearm can rest comfortably, and use the same relaxed motion a right-hander would. How to use a straight key without tiring your arm covers the posture, and it applies to either arm.
A bug is the exception. Its dits come from a weighted arm that swings when you push the lever one way, so the dit side is set by the mechanism, and swapping wires cannot change it. A left-hander can look for a bug built for the left hand, or key a standard one with the index finger making the dits and the thumb the dahs. What is a bug? explains the mechanism.
Practicing on a keyboard
On a computer keyboard, two keys stand in for the two levers, and the thumb and finger question mostly disappears. The rule that matters is a different one: put the dits on the same side as on your paddle. If your paddle sends dits from the right lever, make the right-hand key your dit key, so what you practice at the desk carries over to the paddle.
Dot & Dash lets you choose the dit key and the dah key separately in Settings, General: click the setting, then press the key you want. Its defaults are Left Option for dits and Right Option for dahs, so if you have swapped your paddle, swap these two as well. The straight key can be any key too (Space by default), except Caps Lock, which latches.
Questions
Does it matter which paddle sends the dit?
Not to the keyer or to anyone listening. It matters for consistency: choose one arrangement, keep it, and label any paddle or cable you change so it does not surprise the next person.
Should a left-hander learn on a right-handed setup?
Only if you want to. Swapping the paddles so your left thumb sends the dits gives you the same finger roles as everyone else, and it is the simplest choice if you key with your left hand.
Is there such a thing as a left-handed straight key?
There is no need for one. A straight key moves only up and down, so any straight key works in either hand; just place it on the left side of your desk.
What happens if I use a swapped paddle on someone else’s station?
Every character comes out mirrored, dits for dahs and dahs for dits: A turns into N and K into R. Check the paddle setting, or ask, before you send anything that matters.