YouKits EK-1B User manual

EK-1B（2013）3 Band CW QRP Transceiver
Operating manual
Specification:
Size:120*51*103mm
Weight: about 420g (without battery pack)
Working voltage:9-16VDC。
Current consumption: RX= 120-130mA TX=0.8A（12VDC）
Working Frequency
RX:13.9-22MHz
TX: 14.0-14.35MHz、18.068-18.168MHz、21.0-21.45MHz。
IF DDS: 60MHz
Display: 0802 LCD
Power output: 4-5W（12VDC）
Sidetone:700Hz
Keyer: builtin speed adjustable
Freq MEM: 10

Connection
External power supply
Any 9-16V DC voltage or battery can be connect to (12VDC).It has a polarity protection circuit.
Internal battery power supply
You can use any battery pack around 12V like our 18650 lithium battery pack. Must use special
charger for lithium battery, must not connect regular DC external power supply when lithium
battery pack installed.
Headphones
Stereo headset will be connected to the headphone port(PHONE), impedance 8-32
ohm.
Antenna
Any resonant antenna can be connected directly to the antenna(ANT) with a BNC
connector, for non-resonant antenna you will need to insert an antenna tuner.
Key/Paddle
The EK-1B has an automatic function that determines what type of key is being
used and is initiated on power up. Will show up “Paddle” or “Hand KEY” on screen.
Connect ring to paddle dash or straight key's ground. Connect to sleeve paddle's
ground. Tie ring and sleeve together for straight key. Must plug the straight key
first before power up to activate.
Connect to Paddle dot or
straight key’s contactor
Connect to paddle dash or
straight key’s ground
Connect to paddle’s ground
or straight key’s ground

Operating
Power switch and Gain
This swith is at left side, counter clockwise tuning to the end to shut off the power, clockwise turning to power
it on, GAIN up to the end.
Tune/Step
Change frequency in VFO mode, change memory location in Memory mode.
V/M/SAV
Click this button to alternate between Memory mode(MEM)and VFO mode, the LCD screen will show the “M-*”
or “V-*” (* The figures for 0-9). In Memory Mode the Tuning knob is used to change memory locations. In
VFO Mode the Tuning knob is used to change the frequency.
Press the V/M/SAV button for 2 seconds (the LCD screen will display SAV), the current frequency
and current mode will be stored in the Memory Location selected.
RIT/MOD button
Click this button to enter or exit RIT function. “R-” will be displayed to the middle of the frequency display.
When in the RIT mode, turning the tuning knob clockwise will raise the frequency (as indicated by the up
arrow). turning the tuning knob counter-clockwise will lower the frequency (as indicated by the down arrow).
Press and hold the RIT/MOD for 2 seconds. This will allow you to change the Keyer speed. Current keyer
speed will show on LCD, turning the TUNE/STEP to adjust. Press and hold the RIT/MOD for 2 seconds for
each change.

Change the Frequency Tuning Steps
Pressing the tuning knob lightly will change the tuning step between 10Hz, 100Hz and 1KHz. When changing the step, the
related step position displaying on screen blink twice.
If you Pressing the tuning knob for 2 seconds, the tuning step will be 100KHz. (in the RIT mode, will be 10Hz and 100Hz).
If STEP changed in MEM mode, then it will automatically change to VFO mode
Transmitting
When transmitting on the frequency of: 714-14.35MHz, 18.068-18.168MHz or 21.0-21.45MHz, the EK-1B will display
TX at middle of LCD. Will show “NO” when out of the Ham bands.
Youkits
2013-7-30