Sunday, October 4, 2009


The HB-1A ultra-compact 3-band CW QRP transceiver is designed and manufactured in China by BD4RG, a ham by the name of BU XIANZHI in the city of NANJING, CHINA. My HB-1A was supplied to me by Vincent, VR2UDU of FeatureTech. In fact it's outlook is similar to the Elecraft KX-1 and offers switching between the 20, 30 and 40 Meter bands. It puts out 4 Watts on a Mains connected 12 Volt DC power supply and 2 watts nominal on the 8 internal AA batteries.

HB stands for Home Brew and was originally designed as a kit. Today the HB-1A is offered as a complete product professionally assembled with Surface Mounted Technology. My unit was supplied ready built and tested. On hooking up and testing I would describe the performance of this unit as outstanding, I did not experience any overloading of the front end when hooked up to my 40M vertical antenna. For CW and SSB the selectable IF bandwidths are great, but for AM I would hope for a wider bandwidth setting then 2.2K for better reproduction. On SSB the bandwidths for LSB and USB are 1.6k, 1.8k, 2.0k AND 2.2k. For CW the bandwidths are 400Hz, 500Hz, 700Hz and 900Hz which should be adequate for most CW operators. Audio is adequate to drive an external speaker and the menu buttons are fairly easy to navigate and understand making the unit very user friendly. This is a very impressive little radio. Here are the features:

•20 meters, 30 meters and 40 meter amateur bands.

•Receiving from 5 MHz to 16MHz continuous.

•Maximum transmission power of about 4 watts for CW.

•Weight 12 and 1/3 ounces (approximate).

•Battery compartment holds 8 rechargeable AA cells.

•Built-in auto function keys.

•DDS VFO with 20 frequency storage memory, very stable.

•Blue Digital dial with LCD technology.

•Automatic keyer with the CQ programmable with your call.

•RIT 10 Hz, 100 Hz.

•Frequency conversion superheterodyne receiver.

•Unit will operate with voltage supply from 8-14 VDC.

•Built in AGC function.

The blue LCD digital display offers power output, RIT, storage frequencies as well as short-wave radio receiver functions and a bar graph S meter. The current drain is of a low-power design and allows approximately 50-75 mA on receive. The designer rates the unit, using 2200 mA rechargeable cells at 2 watts output power at 15-20 hours with receive and send ratio of 2:1.

This is a nice little radio and performance is great to boot.

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