YouKits HB-1A MK2 User Manual

Youkits HB-1A MK2 Manual
Edited and revised by K9MA
18.01.30
The HB-1A MK2 covers the 20 and 40 meter amateur bands. (30 meters with modification.) It can
receive between 5 and 16 MHz. The IF bandwidth can be adjusted from 400 Hz to 3 kHz, allowing
reception of CW, SSB, and AM signals. It can be powered either by an internal Lithium-Ion battery or
an external power source.
The LCD display shows the following:
Frequency
Operating Mode
Supply Voltage
Signal strength
Receiver Incremental Tuning (RIT)
Forward and Reflected Power
The 20 frequency storage memories can be used to change frequency and band. The tuning steps can
be set to 10 Hz, 100 Hz, 1 kHz, and 100 kHz for the amateur bands. Outside the amateur bands, tuning
steps can be set to 10 Hz, 100 Hz, 5 kHz, and 100 kHz. RIT tuning steps can be set to 10 Hz and 100
Hz.

YouKits HB-1A MK2 Specifications

General

Brand	YouKits
Model	HB-1A MK2
Category	Transceiver
Language	English

Summary

Two Band CW QRP Transceiver Manual

Specifications and Connections

Specifications

Detailed technical specifications of the HB-1A MK2 transceiver.

Built-in Battery Pack Installation

Instructions for installing the internal 18650 battery pack.

External Power Supply Connection

Guidelines for connecting an external DC power source.

Antenna and Headphone Connections

Information on connecting antennas and headphones to the transceiver.

Operation and Controls

Key/Paddle Interface

How to connect a straight key or paddle using the 3.5mm stereo plug.

V/M/SAV Button Functions

Using the V/M/SAV button for mode switching and saving memory settings.

RIT/MOD Button Functions

RIT Mode Operation

Adjusting the received frequency offset using the RIT feature.

Mode Switching (CW/USB/LSB)

Procedure for changing the operating mode via the RIT/MOD button.

ATT/IF Key Functions

Receiver Attenuator Control

Turning the receiver attenuator (ATT) on or off.

QSK Setup and Modes

Configuring the QSK (full break-in) feature and delay settings.

Frequency Tuning Step Adjustment

Changing the step size for frequency tuning.

IF Filter Bandwidth Adjustment

Adjusting the IF filter bandwidth using the IF FILT control.

Frequency Lock and CW Keyer

Frequency Lock Operation

How to lock the frequency to prevent accidental changes.

CW Keyer Speed Adjustment

Adjusting the Morse code keyer speed.

Callsign Entry and Auto CQ

Programming callsigns and initiating automatic CQ calls.

Tune Function and Transmitting

Tune Function for Antenna Tuning

Using the tune function for continuous transmission during antenna tuning.

Transmitting Power Display

How forward and reflected power are displayed during transmission.

Calibration Procedures

DDS Frequency Calibration

Procedure to calibrate the DDS frequency synthesizer and reset memories.

Voltmeter and Sidetone Calibration

Instructions for calibrating the voltmeter display and sidetone frequency.