¿ªÔÆÌåÓý

  1. BITX20
  2. Topics

BFO update

 

After trying various software versions on my ver 5 uBitx, the KD8CEC v1.20 brought my uBitx to life, SSB works great had good reports on 20 m, all signals sound good on other bands, and the memory manager software works, here's the but, cw transmit does nothing ( it did transmit with other software ), Any ideas where I should start looking?
Thanks,
John W5GFI
 

well a few things to check.? since SSB is working, you must have the 4.7k resistor installed, otherwise PTT would not work.?

of course check your wiring to the key jack.? a short circuit across the interface, when you find it on the board, should get you transmitting on CW.?

when this key interface is closed, the raduino should switch the rig into CW - you should see this on the display somehow.? note that in the settings (I am not familiar with CEC) there should be a setting that configures either manual key or paddle - see which yours is set for.?

also, paddle mode does require some additional resistors to provide different pull-up voltages for dit and dah - this info is on the web somewhere.

73 Curt
 

Thanks for the reminder Curt, thought I had checked that but apparently not, plugging in the straight key did the trick and I found the wiring diagram for the iambic key. uBitx is working good now in all modes, all that's left is to try it out on all the bands.
73
John W5GFI
Andy_501
 

What does the setup do as far as keyers are concerned? I made up two TRS jacks one ties in via 10 kohm input to keyer and 2nd the 2.2 kohm input line. These appear to be two iambic inputs but the cable that is set for the 2.2 kohm input also serves as direct PTT on the mic input jack. The set up options show two iambic choices and standard straight key. Does straight key setting work from both mic jack and/or key morse jack J4 ?
73 Andy

via my shoephone

Sent from
On Jan 17, 2020, at 18:30, "John Schlosser via Groups.Io" <yahoo.com@groups.io target=_blank>[email protected]> wrote:

Thanks for the reminder Curt, thought I had checked that but apparently not, plugging in the straight key did the trick and I found the wiring diagram for the iambic key. uBitx is working good now in all modes, all that's left is to try it out on all the bands.
73
John W5GFI
 

Andy, here is a link to the wiring diagram for both straight key and paddle, I have a jack for each.




John W5GFI
Andy_501
 

¿ªÔÆÌåÓý

My unit came with only one jack with the 2.2K resistor and a 10 K resistor connected to the Tip and Ring with the J4 sleeve ground. I don't have an extra 2nd jack installed in mine connected with Tip Sleeve providing a direct ground to the keyer input pin. The only description I had wrt straight key was to use the Mic connection and connect the hand key to the PTT line which is different point than the keyer line and might definitely be a source of aggravation lag from key down to RF output timing.

On 2020-01-20 2:09 p.m., John Schlosser via Groups.Io wrote:

Andy, here is a link to the wiring diagram for both straight key and paddle, I have a jack for each.




John W5GFI

1 - 6 of 6