HMY2K8 - A MULTI BAND HF TRANSCEIVER
By Dr. R. RAJASEKHAR, VU2HMY
TECHNICAL SPECIFICATIONS:
Frequency coverage: Ham Bands
3.500 - 3.600 M.Hz ( 80 M )
7.000 - 7.100M.Hz ( 40 M )
14.000 – 14.350 M.Hz ( 20 M )
21.000 - 21.350 M.Hz ( 15 M )
28.000 – 28.350 M.Hz ( 10 M )
Frequency control:
Ver. 1: Direct Digital Synthesizer (DDS) with 1 Hz step continuously variable vfo
with 20 memory channels. 2 line LCD display. Dual VFO, Split , RIT, Key pad /
rotary encoder for frequency entry.
Ver. 2: 5 Band Heterodyne VFO with PIC frequency counter to reduce cost of the
project.
Receiver:
Single conversion receiver with 10.000 M.Hz Cohn filter.
Low noise figure, 2.2 K.Hz SSB band width, 1.5 W audio O/P.
Transmitter:
RF O/P - SSB - 90 W ( DC PWR I/P )
CW - 60 W ( DC PWR I/P )
Built in CW side tone, CW delay, pwr meter, MOS FET Push Pull PA.
Dimensions: 8.5 X 7 X 4.5 inches
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Wonderful circuit design from VU2HMY. Also, if a Step-by-step guidelines, for the whole assembling of this project, is available, it will attract any new-comer and as well as other Hams also to finish up the project very easily and very quickly. For all these guidelines, a video file may be created for the same and if it is uploaded to UTUBE site, it will be further useful to the hams to do the project without any difficulties
ReplyDeleteVU2DJM,
Krishnamurthy D,
Chennai-600064
Dr.Sekar Garu, very excellent to see, nice information, God bless u , all de best, 73's
ReplyDeleteDr.Sekar Garu, very excellent to see, nice information, God bless u , all de best, 73's
ReplyDelete