KENT EK-4 User manual

KENT EK-4 / EK-4M ELECTRONIC KEYER
Operating Instructions
EK-4 STANDARD KEYER
STEP TUNE
The STEP | TUNE button has two functions. When pressed momentarily steps through the tree
menu options indicated by the flashing LE , but if pressed and held for 2 seconds a 10 second
constant output is given for TX tuning. This timed output can be stopped at any time by pressing
the dot paddle on the key.
WEIGHTING
The dash length can be increased in steps of 5 % up to a maximum of 75 % by pressing PLAY |
SELECT and then shortened by pressing RECOR | SELECT. A long tone will be heard when the
maximum and minimum values are reached.
IAMBIC
The dot and the dash memories can be switched off by stepping to IAMBIC on the menu and then
pressing SELECT. ESELECT switches the dot and dash memories back on.
AUDIO
Both volume and pitch are adjustable, the pitch being controlled via an internal preset.
EK-4M MEMORY KEYER
STEP TUNE
After applying power select the desired weighting, paddle sense and Iambic function as described
for the standard keyer, note the tune function is only available at the WEIGHTING, PA LE RE-
VERSE or IAMBIC positions on the menu. Momentary pressing the STEP | TUNE at the Iambic posi-
tion takes you to the first memory position indicated by the flashing LE , pressing STEP | TUNE
now, only steps through the memories. To return to the weighting position on the menu press and
hold STEP | TUNE until a short tone is heard.

LOADING MEMORIES
Each of the 4 memories can be loaded with up to approximately 100 characters and 2 pauses. The
pauses are used to insert a stop during memory play to enable the operator to manually insert
variable information such as call signs or signal reports. First select the memory to be loaded using
STEP then press RECOR the LE will flash quicker. Enter your message from the key, momenta-
rily pressing STEP to insert a pause if needed, up to 2 pauses per memory.
PLAYING MEMORIES
Select the to be played using STEP then press PLAY, while playing the speed can be altered by
using the speed control. The play sequence will continue to the end of the recorded message or
until a pre-programmed pause is reached indicated by the memory LE together with the memory
detect LE flashing. The key is operational during a pause to enable manual insertion of variable
information and then resume playing the memory by pressing PLAY. At any time when the memory
is playing pressing the dot paddle on the key will cancel the play sequence.
LOOP
To loop the memory press PLAY then RECOR . The loop function enables a selected memory to be
played continuously pausing for a pre-programmed time delay at the end before starting to repeat
the message. The time delay programmed in from the key at the time of recording the message
can be altered without having to rerecord the message. This is done by pressing RECOR , waiting
for the fast flashing LE then without pressing the key press RECOR again and wait till the LE is
on constantly. At this point enter the new time delay from the dot paddle of the key, remembering
each press represents 1-second delay. When complete press RECOR again and the memory LE
returns to a slow flash.
Specifications:
Power: 9 V to 15 V external supply
Output: Relay switched
Speed: 5 to 40 WPM
Weighting: +75 % on length
Side Tone: Adjustable volume and pitch
Tune: Gives key down for 10 seconds or until cancelled
Memory: 4 × reprogrammable with 2 pauses per memory
Case: 90 × 140 × 40 mm Steel case