Re: uBITX full design
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In my mind… this is the obvious next step for the uBITx. There is a good following of people here that wouldn’t mind building the radio from scratch… and it also allows for experimentation in each of the stages as one builds and tests. If I ever get time, my goal is to make a set of boards stage by stage that can be fit together on a motherboard. What better teaching tool?
For the rest, there is the completed (prebuilt board) uBITx that has become so successful.
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Ashhar Farhan
I can arrange for a blank PCB if you want to solder it all up. it hurts my wrist to do it all over again. i have done it several times to test the new boards. there is very little education in it.
on the other hand, you might want to build a ubitx all by yourself. although it is a double conversion design, it is actually quite easy to build, stage-wise. beign by building the IF amplifiers. you will have to build six of those. get one going and duplicat the rest. each on a separate 2"x2" copper board. you can hook up a raduino from the Si5351 board from qrp-labs and an antuino. using that as a signal generator, you can test/align the 45 Mhz filter and the LPF. At that point, you are done with the RF parts and you can choose to go with any audio amplification system.
i would encourage you to build it one stage at a time, test, measure and move on. great education!!
On Mon, Sep 23, 2019 at 4:06 AM Jerry Gaffke via Groups.Io <email@example.com> wrote: