Hi Goats,
GitHub
An ultra minimalist radio designed by Guido PE1NNZ, all info are available from the link above.
TU, 73 de vk2ihl
3 Likes
Hello Pascal,
Nice case btw. but this project was already discussed here:
Guido PE1NNZ has modified a QCX transceiver to transmit SSB through a class E amplifier by using Envelope Elimination and Restoration, taking advantage of the atmega328 and the key shaping circuit. The built in DVM on the QCX is converted to take microphone inputs and there are minimal physical changes required. From Guido:
The SSB transmit-stage is implemented in a completely digital and software-based manner: at the heart the ATMEGA328 is sampling the input-audio and reconstructing a SSB-s…
and here
More info from Guido PE1NNZ
QCX-SSB
I will get to the Tx step in a few days, would shot a video clip then.
For your information about the cost of SDR home brewing:
1999, “DSP-10, 2m Transceiver, by W7PUA”
The DSP evaluation board from Analog Devices, 21xx EZ Lite, landed in VK with a tag $1200 Aud, shipping included.
2010, “PICASTAR, HF with IF DSP, by G3XJP”
The pair, Codec & DSP, ADSP2181 and AD1885, from China, for $25 Aud.
2020, “QCX-SDR, by PE1NNZ, an Atmega 328P, less than $2 Aud !!…
Designing a new small pcb in KiCad or Eagle with only the relevant components would be interesting.
73 Joe
My apology,
My thought that it is an “uSDX” not a modified “QCX” from Hans.
Mods, please delete it.
TU de vk2ihl
G3CWI
10 June 2020 06:35
4
I think the photo gives it away!
1 Like
S52CA
10 June 2020 13:39
6
Current developments here (needs registering):
This group discuss the design, construction, and ideas of a new, ultra-compact *micro-controller based Digital All Mode 5W Class-E HF transceiver 3.5-54MHz* ( https://raw.githubusercontent.com/threeme3/usdx/master/usdx.png ). The name of the...
A few users are already designing PCBs in TH and SMD. Gerbers for one of TH boards already available.
1 Like
How on earth is this possible in a 328 is beyond me at the moment. Multiple roofers
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L’habit ne fait pas le moine.
How to delete this thread?
Cheers from Pascal
1 Like
