Minima
A large group of enthusiasts worked with Farhan to create and test a general coverage receiver and multi-band transmitter called the?. Its simplicity, innovations such as its KISS mixer, ?shuttle tuning using a potentiometer, and overall low build cost inspired hope of an affordable multi-band transceiver (to me anyways). :)
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Ubitx v1
Continuing on with the general receiver concept with lessons learned from the minima, the was published.
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uBitx v2
No schematics are known to have been published.
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uBitx v3
The version 3 schematic is the version of the first production board from (formally hfsigs.com).
Right-click and view image in a new tab to see a large version (click on image when in new tab to zoom to full size).
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uBitx v4
- c210 and c216 - are listed as 0 pf and are not present on the board used in production by HFSignals.
- Q942 and Q952 - are not populated on board sold by HFSignals. As sold by HFSignals, the final drivers for the PA are IRF510. These alternative pads allow experimentation such as replacing the IRF510's RD15HVF1's which are a different pinout.
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uBitx v5
- c210 and c216 - are listed as 0 pf and are not present on the board used in production by HFSignals.
- Q942 and Q952 - are not populated on board sold by HFSignals. As sold by HFSignals, the final drivers for the PA are IRF510. These alternative pads allow experimentation such as replacing the IRF510's RD15HVF1's which are a different pinout.
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uBitx v6
- X7 value is wrong -- should be same as the others at 11.059MHz
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