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i have added a button for a tunning button
after that i got nothing so i thought i'd wire the whole cw wiring
I got them all following instructions
button still does nothing

the only one i didn't wire was pin15 to that transistor as inam not going to use cw

by the way, any hint why it doesn't work the carrier button (brown wire from p1)

Hello Cesar,

which wire did you not connect?
You mentioned "i didn't wire was pin15 to that transistor as inam not
going to use cw". I guess you mean the TX/RX line as shown in


But this one should connect to pin 16, not pin 15!

The TX/RX wire is needed to put the radio in transmit when you use CW.
But when you connect a pushbutton instead of a morse key (for tuning), it
is exactly the same as when you press the morse key down.

So you need to connect the TX/RX wire too, if you just use a pushbutton
for tuning purposes.

I hope it's more clear now.

73 Allard PE1NWL

I'm having similar issues with CW operation as well. I installed the modification, the modification and the modification. Without the modification when I press the key, the display indicates that it is transmitting in CW mode, but it really isn't. When I press the PTT, which I assume is basically the same as what the transistor in the mod does, the transmit mode on the display switches to LSB and it does transmit, however the carrier level shown on the scope is far less than I would expect.

I did install the modification but with that in place, when I pressed the key momentarily, the BitX locked up in transmit (don't remember which mode). I t could have been a bad transistor, or some other issue. After that happened, I removed the modification. I still need to play with it more before I scream for real help and I want to take a look to see how the software handles CW mode.



--
John - WA2FZW

Without the modification when I press the key, the display indicates that it is transmitting in CW mode, but it really isn't

Yes that's correct, since v1.14 you cannot do CW without the TX-RX line

When I press the PTT, which I assume is basically the same as what the transistor in the mod does, the transmit mode on the display switches to LSB

Yes this is as designed:?(since v1.14,??see the revision record in?README.md): CW key down brings the radio?in CW mode automatically. Press the PTT on the mike to return to SSB mode.

I did install the modification but with that in place, when I pressed the key momentarily, the BitX locked up in transmit.

Did you perhaps switch the emitter and collector of the bypass transistor by mistake? This can lead to similar behaviour (once the transistor is opened it will stay open forever until you power off).
I recommend to look into?this?"lockup issue"?first. I'm quite convinced that once this is fixed the rest will work fine too.

73 Allard PE1NWL

On Thu, Jun 22, 2017 at 05:21 am, Allard PE1NWL wrote:

Did you perhaps switch the emitter and collector of the bypass transistor by mistake? This can lead to similar behaviour (once the transistor is opened it will stay open forever until you power off).
I recommend to look into?this?"lockup issue"?first. I'm quite convinced that once this is fixed the rest will work fine too.

Thanks Allard! That is quite possible.?And it is my plan to do just as you suggested?(just need to find an hour or so to get to it! LOL!).

But answer me this if you don't mind. How is pressing the PTT different than what the transistor does. Sorry, I'm more of a software guy than a hardware guy!

?
?
--
John - WA2FZW

On Thu, June 22, 2017 16:32, John P wrote:

But answer me this if you don't mind. How is pressing the PTT different
than what the transistor does.

The difference is just in the usage.
In the intended usage, in order to return to SSB, the operator would press
the PTT whilst the radio is in RX mode.

But in your case you press the PTT while the radio is still in TX (well it
isn't really but the lockup issue with the RX-TX line keeps it in TX all
the time)

Therefore IMO the first priority would be to fix the lockup issue.

73 Allard PE1NWL

On Thu, Jun 22, 2017 at 08:08 am, Allard PE1NWL wrote:

The difference is just in the usage.

Let me try to ask the question differently.

Is it not true that what the BitX board?sees at the PTT connector is the same regardless of whether I press the PTT switch or cause the transistor to conduct via the connection from D7? This is where I'm confused.
?
--
John - WA2FZW

On Thu, June 22, 2017 17:22, John P wrote:

Is it not true that what the BitX board??sees at the PTT connector is the
same regardless of whether I press the PTT switch or cause the transistor
to conduct via the connection from D7? This is where I'm confused.

Yes John, you got that right!
The transistor just bypasses the switch (as it's in parallel to the switch).
So the result is the same whether you close the switch or whether you
cause the transistor to conduct. In either case the TX relay will become
activated.

But what I wanted to point out is that normally, when you are in receive
mode, the transistor is NOT conducting. So in that condition, when you
press the switch, you will activate the relay and via the PTTsense line
the Raduino will 'know' that has to switch the mode to SSB.

In your specific situation however (due to the issue you have with the
transistor) the transistor remains conducting all the time. So the relay
is constantly activated, and pressing the PTT switch will not make any
difference.

73 Allard PE1NWL

On Thu, Jun 22, 2017 at 10:42 am, Allard PE1NWL wrote:

Yes John, you got that right!
The transistor just bypasses the switch (as it's in parallel to the switch).
So the result is the same whether you close the switch or whether you
cause the transistor to conduct. In either case the TX relay will become
activated.

That's what I thought, so back to the original issue, with the whole TX-RX modification (i.e. the transistor) completely removed, when the key is closed and I press the PTT, it reverts to LSB TX mode, instead of transmitting in CW mode.
?
--
John - WA2FZW

On Thu, June 22, 2017 21:19, John P wrote:

That's what I thought, so back to the original issue, with the whole TX-RX
modification (i.e. the transistor) completely removed, when the key is
closed and I press the PTT, it reverts to LSB TX mode, instead of
transmitting in CW mode.

Yes that's correct and as designed. So why is this an issue?
Why would you want to press PTT and close the key at the same time?
Sorry I don't understand.

73 Allard PE1NWL

On Thu, Jun 22, 2017 at 01:18 pm, Allard PE1NWL wrote:

Yes that's correct and as designed. So why is this an issue?
Why would you want to press PTT and close the key at the same time?
Sorry I don't understand.

I was pressing the PTT in place of having the RX-TX transistor connected.

But anyway, I just finished reconnecting the transistor and everything works as it should now!!! Don't know what I did wrong before (and don't really care)!

Thank you so much for your help, Allard. It's nice to know that there are still people in this world that will take a few minutes out of their busy schedules to try to help an idiot like me out!!!
?
--
John - WA2FZW

OK John,
never mind, good to hear you got it all working now!

73 Allard PE1NWL