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CW works great on the BitX40 with raduino_v1.27.3, download it from

Just a few minimal mods are required, see

for details

You may also want to add the capacitive touch keyer mod (4 resistors):


73 Allard PE1NWL

On Fri, December 15, 2017 21:43, Jeffrey Peters wrote:
> Thank you Dale,
>
> This group is great and very helpful.
>
> Anyone using the Bitx40 on CW and is the CW mod. on the BitHacks page all
> I
> need to do?
> Just looking for a simple CW transceiver, guess I am not much of a phone
> op.
>
> TU de Jeff K9JP
>
> On Fri, Dec 15, 2017 at 3:10 PM, Dale Brooks KG7SSB <kg7ssb@...>
> wrote:
>
>> I had a nasty second harmonic which was greatly improved by adding this
>> cap to the LPF circuit. It also improved the third and 5th order so much
>> I
>> don't even see them on the spectrum analyzer. They are at least -120 db
>> down and below the noise level of the spectrum analyzer.
>> Dale
>>
>> On Fri, Dec 15, 2017 at 12:58 PM, Jeffrey Peters <dek9jp@...>
>> wrote:
>>
>>> Thank you David - N8DAH,
>>>
>>> I will read more about the LPF mod. and solder it on today!
>>> I appreciate your help and kindness.
>>>
>>> 72, Jeff K9JP
>>> Traverse City, MI
>>>
>>> On Fri, Dec 15, 2017 at 2:11 PM, N8DAH <Dherron@...> wrote:
>>>
>>>> Jeff that cap mod for the LPF IS for the Bitx40.
>>>>
>>>>
>>>
>>>
>>> --
>>> Not all of me will die - - - The good I do will live forever.? <><
>>>
>>>
>>
>>
>>
>
>
> --
> Not all of me will die - - - The good I do will live forever.? <><
>