Farhan ji, Will it be true for V3 R253 also or will it be just true for V5 R253 with LM386 ?? I am asking this question because with my scratch build I have taken the V5 schematic but audio system I kept TA2822 circuit. However, I am not able to try CW because I had to make the audio section offline during transmit to avoid the audio feedback problem during transmit, it is getting into the audio section via Q6 emitter (as mentioned on my previous post). Which I am still trying to resolve any suggestion will be very helpful.

73
Anthony
VU3JVX

Hmm... Interestingly I am not able to see the complete discussion chain in my mail inbox. However, I am able to see all the discussion post if I login to the forum and check. Not sure if it's just my mailbox or other;s have notice this. Looks like trying to ask question via mail inbox is not a good idea.

73
Anthony
VU3JVX

Findings after a very quick test :-

After a little mod to the Setup routine around line 812 the code compiles -

? ? setupBFO();

//? } comment out GM4CID

? guiUpdate();

Now finding -
Encoder operation strange
PTT ground on A3 does not hive a low on D7
CAT does not want to connect

Forgive me if this is finger trouble on my behalf.

73, Bob GM4CID

Hi Ashhar,

Has this mod already done on the new V6 transceiver boards?

Joel
N6ALT

On Wed, 18 Dec 2019, Ashhar Farhan wrote:

> Jack and others,
> I have uploaded the refactored code to??.
> I will document this further in the next few days.?
>
? ?When you did the refactoring, did you incorporate the suggestion someone made
last week to create IFDEF conditionals so that the new code can support older
versions of the hardware?
? ?I have a v5 board with the standard 2-line display. Transmit seems to work
fine, as I was able to check it with a friend's spectrum analyzer, but receive
does not work at all. My friend suggested that it is so far out of calibration
that the signals are outside the filter passband.? Since I can't 'tune in to a
strong signal', I'm stalled at the first step in the calibration/alignment
procedure.? I'm wondering if the 'new improved' calibration procedure in the V6
firmware might include a workaround for this stumbling block?

I don't have access to a good signal generator, but I do have a working
frequency counter.? Is there a test point that you can point out to me where I
can sample the master (or derived) clock signals.? I could play with the
calibration values until the clock freq corresponds to the display freq.

--
Rick Green N8BJX

We, the People of the United States of America, reject the U.S. Supreme Court's
? Citizens United ruling, and move to amend our Constitution to firmly establish
? that money is not speech, and that human beings, not corporations, are persons
? ? ? ? ? ? ? ? ? ? ? ? entitled to constitutional rights.

? ? ? ? ? ? ? ? ? ? ? ?

I' ve find it very interesting to use in the first stage of TIA - BF998 transistor. Detecting IF or audio can give AGC to the first and second amps. Changing control from 0 to 5.5 V on Grid 2
one can get 36 dB gain chainging of TIA and have at 5.5 V + 6 dB over the original amp.

Update, the Bitx40 is on its way to it's new home, the uBitx is still available at $100 shipped, ConUS.

Feel free to email me directly with any questions,

Ken, N2VIP
ken@...

> On Dec 15, 2019, at 18:40, Ken Hansen <ken@...> wrote:
>
> ?*** Note, resend or previous email with new lower prices ***
>
> Hello all,
>
> I've got two unbuilt/unattempted kits for sale. Both kits are as packed by HFSIGNALS.
>
> First up, an unbuilt Bitx40 from Dec. 2016, 2x speakers and an undrilled case from Amazon (blue & white) sold as kit, looking for $50 shipped ConUS. (Pictures of case available, contact me directly if interested.)
>
> Second, I have an unbuilt uBitx from Feb. 2019, asking $100 shipped ConUS.
>
> Both kits have original invoice from HFSIGNALS.
>
> PayPal accepted, email me direct with any questions.
>
> Thanks,
>
> Ken Hansen, N2VIP
> ken@...
>
>
>