Date   
Re: BITX QSO Afternoon/Evening, Sunday, May 27, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.

Daniel Conklin
 

I had a quick QSO with WI1B, Ken in Andover Mass., for a 290 mi QSO using a uBITX barefoot into a G5RV up about 35 ft. It started of 58-59 but faded after a few exchanges and there was a lot of static crashing.  I also heard WA4THR, but wasn't able to contact because of the QSB.  
Dan, W2DLC

Re: BITX QSO Afternoon/Evening, Sunday, May 27, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.

Tom VE3THR
 

greetings from black fly country guys...up in Sudbury Ontario EN96 tonight. End fed inverted L and a Buddy Stick vertical just ain't cuttin' it tonight. Weak sigs - worked John WA3FZW briefly so far. Will keep trying till dark.
73 Tom VE3THR

Re: BITX40 CW Carrier Mod - CW Waveform shaping ? #bitx40

 

Allard : 

Thanks for the idea. I had a similar thought of splitting the resistance as you have suggested !  
I don't have a working scope at the moment but I might be able to test this out by transmitting into a dummy load with the BITX40 and monitoring it with my Flex-1500 as there
is a "scope" display in Power SDR that might just let me see the shaping of the received waveform. 

I'll do some experimenting and report back what I find. 

Cheers

Michael VE3WMB 

Re: KD8CEC uBITX firmware 1.071 #ubitx

Ian Lee
 

kj6etl

Probably there is a problem with the calibration. 
If there is a problem with the calibration, uploading another firmware will not solve the problem.
I saw this article and tried to tell you to try Facto reset. However, when you look at another thread 's article, you seem to have already solved the problem with Factory Reset.
I think you did it exactly.
It is also a good idea to use the uBITX Manager to enter the values recommended by other users.
Thank you for using CEC firmware

Ian KD8CEC



2018-05-28 2:10 GMT+09:00 kj6etl <pa1zz@...>:

Thats the one I was looking for!

THANKS!!!!!!

Smules across the wires,


Rogier



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: BITX QSO Afternoon/Evening, Sunday, May 27, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.

Tom VE3THR
 

possibly KE0NXP ?? 

Re: BITX QSO Afternoon/Evening, Sunday, May 27, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.

Daniel Conklin
 

I can hear KE0NXP, but the static crashes are making it impossible to get more than his call.

Re: Ian Cec firmware

Ian Lee
 

Art

No hardware modifications are required to use the CEC firmware.
You can use it as it is released from hfsignal, 
When I write the firmware, nothing is based on uBITX which has not been modified

You can upload the hex file by selecting xxx16P.hex
The related explanation is below.

If you have installed a signal meter in the uBITX, you can enable it in uBITX Manager. However, Signal Meter is not necessarily.
I have two uBITXs and one is not making any modifications.

Ian KD8CEC


2018-05-28 7:58 GMT+09:00 Art Olson <olson339@...>:

May seem like a dumb question but here it goes. Ian,s firmware doesn’t require any hardware mods to the Ubitx? Wire up per hfsignals and the update firmware to lasted cec version. If hardware mods required  can someone point me in the right direction 

art. N2AJO 



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: W8TEE vft/tft questions

tom.mccobb@...
 

Turned out to be a combination of the encoder sending out 4 pulses, AND a bad 2560.  As soon as I swapped out the Arduino, all was well, and the code change made tuning behave better than ever.

Thanks for everyone's input.

Jack:  I have (and continue to) enjoyed Arduino Projects for Ham Radio.

Re: The new uBITX boards are here

Kees T
 

I think the 27 ohms has more to do with 50 ohm input impedance matching.

73 Kees K5BCQ

Re: W8TEE vft/tft questions

John P
 

If I remember correctly, the rotary library I use in my projects has a symbol that allows you to only recognize pulses for each detent or to also recognise intermediate pulses. Not at the computer now, but if you look at my code for the antenna analyzer that will point you to the specific library. 
--
John - WA2FZW

Re: Ian Cec firmware

Art Olson
 

Ian

Thanks 

73
Art


On May 27, 2018, at 8:20 PM, Ian Lee <kd8cec@...> wrote:

Art

No hardware modifications are required to use the CEC firmware.
You can use it as it is released from hfsignal, 
When I write the firmware, nothing is based on uBITX which has not been modified

You can upload the hex file by selecting xxx16P.hex
The related explanation is below.

If you have installed a signal meter in the uBITX, you can enable it in uBITX Manager. However, Signal Meter is not necessarily.
I have two uBITXs and one is not making any modifications.

Ian KD8CEC


2018-05-28 7:58 GMT+09:00 Art Olson <olson339@...>:
May seem like a dumb question but here it goes. Ian,s firmware doesn’t require any hardware mods to the Ubitx? Wire up per hfsignals and the update firmware to lasted cec version. If hardware mods required  can someone point me in the right direction 

art. N2AJO 



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: RF power chain mods and improvements..

vk5gj@...
 

Thanks Alison, I should've seen that one coming  ----- it was late in the day
Regards Greg vk5gj

Dead Mic

Dennis
 

The enclosed mic doesn't work - can someone suggest a stateside replacement?

73, Dennis
W7DRW

Re: Dead Mic

R. E. Klaus
 

Pretty much any electret microphone element on Amazon, ebay, Digikey, etc will work just fine. They are polarity sensitive so you have to make sure you connect them properly.
Roxie  K1AUS

Re: Transmitter Mods

Sajid Rahum
 

Hi there Howard

Am going to be starting ubitx assembly tomorrow to piece it together and get 2822 replaced first. Next I wanted to ask if I can get hold of the 47uH inductor.  I was not sure where to order it from if you have a link will appreciate it; I have the other 2 remaining parts.

Much appreciated.

LM380 vs TDA2822 audio quality

Tom Cooper
 

Since I replaced my audio amp with an LM380 I just can't be more pleased with the results.  The LM380 has much less distortion for me on CW.  The 2822 must have been having input limiting and/or inter-modular distortion, with that square-wave buzziness being very noticeable on QRN and multiple loud CW sigs at once.  I had thought that Q70 was just being over-worked but that appears wrong.  I did do the 16K resisitor to ground from the base of Q70 mod before the 2822 had to be replaced and it seemed to help some at the time, but for the price of a resistor anything is worth trying.

I built the LM380 amp on a small piece of circuit board dead bug style.  Be sure to bypass the V+ pin close to the pin.  You can hear a lot of unwanted AM radio with sloppy wiring. 

Re: Dead Mic

Tom Cooper
 

You could probably use one out  of a dead phone or answering machine or other appliance.  That's what I did because my mic wouldn't work either.

Re: Need a Customs Form for import of Kees AGC and Pop-Thump kits into Canada. Can anybody let me know off-line? #ubitx-help

Kees T
 

all the ordering instructions are in the Files section under my call     K5BCQ

73 Kees K5BCQ

Re: #bitx40 #bitx40

qonita.salimah@...
 

Thank you for your reply..

I'd already double check my connection and wiring to the headphone jack. I also try another speaker, in case the problem is within the speaker. But the thing that happened is the system didn't show any sound at all. 

Thank you very much

Re: #bitx40 #bitx40

qonita.salimah@...
 

Did the potentiometer also affecting?