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Damn, its done it again. ( always the computer at fault :-( ) sorry for the multiple posts. Mike --

Thanks Indra for your $ which arrived here this morning from Indonesia. I'm sending this to the group in case anyone hasn't yet paid me for the component packs - I think you all have but due to

Hi, I am currently on business in Mumbai and wanted to interact with BITX builders in Mumbai. This project is interesting since all components are available in India and I happen to be in the

Hi Folks, I've just received my new Temp. Controlled Soldering Iron from Maplin UK. It is currently on special offer, and what an offer !. Previously sold for 29.99 its now on offer for 9.99. It has

Hi Folks, I've just received my new Temp. Controlled Soldering Iron from Maplin UK. It is currently on special offer, and what an offer !. Previously sold for 29.99 its now on offer for 9.99. It has

Several builders are examining other bands with alternative intermediate frequencies. When doing this, it is vital to look for potential spurious transmitter outputs. Ashhar noted that this can

Hi Just a quick thought regarding improving or modifying your particular BITX20 transceiver: Since the BITX design includes a 10 MHz oscillator as the BFO, it would not take much circuitry to send

dear forum, as an interested reader of this forum, and beeing someone who's aiming to build a bitx in the near future I wonder if there are already people who have finished the building of this

Hi! The more I think more I am convinced that this is indeed a simple way experiment with modern techniques. If we plan to go SDR route along with downconversion then we find the critical Xtal

Arv I just had a quick look at this. With the current group settings, any member can create directories and any member can create files in any directory. What you cannot do is edit or delete an

Rahul VU3WJM That is the beauty of the BITX design. It has so much potential that it gets one to thinking about all the interesting possibilities. Here are some more "ideas" that relate to the

Hi! Arv, Baseband...... This is good thinking. I was wondering on a 2.5Mhz If for BITX and 10Mhz xtal clock for detection and rest thru SDR soft. Only a couple of more diodes to add (I Q

Wow !. Thanks Arv :-) vy 73 de G8NXD, Mike W --

Hans I think that either yourself or Farhan will have to build any "group writable directory", if it is even supported by Yahoo. In building my K7HKL directories in the Files and Photos sections I

Arv All good points. This BITX20 reflector has been very interesting so far, and will continue to get even more interesting as the number of completed projects increases and people start working on

I'm wondering, in a quiet, museing, sort of way, whether its a reasonable prospect to use the IF strip as a driver to VHF using a transverter in place of the PA and RX BPF. I have suitable

Chris, & others... Please take a closer look at the BITX IF string without any crystal filter. There would be no control of the passband and thus no way to tune a specific frequency, other than as a

Dear forum, The problem of my crystal measurements has solved :-). Thank you for your advice :-). I try change the transistors from BC547B to 2N3904. (maybe I got 2nd grade quality of BC547B) Then

Sorry folks, I don't know what I did wrong but the post was only intended to be sent once to three groups, not three times to this one. abject apologies for wasted space. atb Mike W

Hi,why the intention to add one x-tal as a filter if you want to generate DSB? Just remove the current IF filter from the design and you have already DSB! By doing this, you can also investigate