1. AN ORIGINAL DESIGN BY ASHHAR FARHAN VU2ESE
THE BITx40 RADIO PROJECT
AN ORIGINAL DESIGN BY ASHHAR FARHAN VU2ESE

2. BITX40-BITX20 THE EARLY DAYS THE GENESIS OF THIS TRANSCEIVER CAME FROM THE MIND OF farhan WHILE ON A LONG FLIGHT. WHAT COULD BE MADE IN A COST EFFICTIVE MANNER TO PROVIDE THE HAM Of INDIA WITH A TRANSCEIVER THAT MIGHT HAVE A FINAL COST OF $7-$15? THE DESIGN TOOK INSPIRATION FROM AN ARRL BOOK AND BECAME A UNIT USING BI-DIRECTIONAL AMPLIFIER STAGES

3. BI-DIRECTIONAL AMPLIFIER STAGE

4. SIMPLE COHN LADDER FILTER AT 12 MHZ

5. DIODE RING BALANCED MIXER FRONT END/DEMOD

6. CRYSTAL CONTROL BFO USING SAME XTAL AS I.F.

7. TRANSMITTER DRIVER & FINAL STAGE IRF510 FET

8. SINGLE BANDPASS FILTER USED IN RX & TX

9. LOW PASS FILTER ON OUTPUT

12. WHERE TO NOW. WWW. HFSIGS. COM https://groups
WHERE TO NOW? users group BITx40 hacks

13. THE WORLD IS IS IN THE HOME BREW FINAL ON BITx40/20/80/60

14. YOU CAN DO IT, GET ON 40 METERS 7195 KHz WITH SSB FOR $69+