Date   

Re: Multiband antenna, Tx and Rx

McRuss
 

Great idea....where does one source the cores?  I'm going to guess either Amazon or Ebay :-0
--
Russ
K5FJR


Re: Encoder issue

Jack, W8TEE
 

Keep me posted!

Jack, W8TEE

On Saturday, December 12, 2020, 10:07:07 PM EST, barry halterman <kthreebo@...> wrote:


Hello Jack. I spent most of the evening reading your book, programming the arduino. 
I have found a few different sketches to read an encoder and will try those tomorrow.
Barry
K3bo




On Sat, Dec 12, 2020, 9:44 PM Jack, W8TEE via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Try a simple example program using a different encoder library. Use on of the examples shipped with the library, set the proper pins, and see what happens. Some libraries are written such that they only act on the first, second, or fourth pulse.

Jack, W8TEE

On Saturday, December 12, 2020, 9:31:24 PM EST, barry halterman <kthreebo@...> wrote:


Greetings ubitx tinkers and programmers I might be going out on a limb here....
I am having an encoder issue and it seems like the issue is with the sketches that are being used on the V6 ubitx radios
I have tried different nano boards, different encoders and different sketches with the same results. What is happening
Is that the nano is NOT picking up the encoder transition when the transition goes from 1 to 3 and 3 to 2. It will count 
When the encoder transitions from 0 to 1 and 2 to 0. So the encoder is only generating half of the ticks it should. Does not matter if going clock wise
Or counterclockwise, the same results.
I have put my dual trace scope on both phase A and B inputs  and see the pulses at the correct voltage levels and proper timing.
So if the Hardware is functioning properly, then it must be that the program is not. Any ideas?
Thanks 
Barry
K3bo

--
Jack, W8TEE


--
Jack, W8TEE


Re: Multiband antenna, Tx and Rx

Gordon Gibby
 

It’s fun, easy, and cheap to make a simple one to one current Balun (actually perhaps an “un-un” but no matter) 


Once I realized what was inside of a commercial item I had purchased, from then on I made my own.

These are great for reducing common mode currents from unbalanced antenna  systems

There’s no magic here. It’s all Ohms Law  in RF impedance terms.   you put as high impedance as you can in series with the common mode path.   The windings on the ferrite toroid accomplish that

Gordon 



On Dec 13, 2020, at 03:50, vu3gao@... wrote:

Hi, 
Properly matched multiband antenna should not affect the digital Raduino,  but unbalanced multiband antenna  like those end feds and alike will put RF in the shack and may cause microcontroller to malfunction.

73s
Nitin VU3GAO


Re: Multiband antenna, Tx and Rx

Evan Hand
 

On Sun, Dec 13, 2020 at 01:13 AM, saiyam dutt wrote:
1 Dose the multiband antenna affect the Rx if bitx radio .
In General, the antenna will affect the uBITX in signal strength only.  That is the same for any receiver.  There is a possibility of a nearby strong transmitter causing issues with receiving.  A multiband antenna would receive out of band signals better than a single tuned antenna, though not by much.  This is usually solved with a filter in the receiving line to reduce the interference.   In the US this is mostly caused by AM statins that are below the ham bands.  A high pass broadcast filter solves this issue.  If the transmitter is above the lowest frequency that you want to use, either adding bandpass filters, or a notch filter for the frequency of the strong transmitter would work.

 
2 Dose the high SWR close to 1.9 or 2 on certain band affect your Tx by sending the radio in setup mode as soon as u press PPT swich .
As Nitin stated, the uBITX is very susceptible to any strong RF in the shack.  It can cause the Nano in the uBITX to do strange things.

 
Has any one faced similar issues 
I had the RF in the shack issue using a multi-band off-center fed dipole.  Every time that I would transmit on 40meters it would go into setup mode, or stay locked in transmit mode.  I fixed the issue with multiple snap-on ferrites on the coax line just before it enters the shack.  It would be better to use a common mode choke (unun) or a dirty balun (6 to 10 turns of coax neatly wound) close to the antenna feed point.  I was just lazy and it solved the problem.  The idea is to choke off the common mode currents in the transmission line.  I also added a snap-on ferrite to the mic line just before it enters the radio.

73
Evan
AC9TU


Re: Encoder issue

IW4AJR Loris <lorisbollina@...>
 

Hi Barry.
 
I have done a lot of tests with the original software of the µBITX-V6, 
in my case and to my feeling, I don't miss any impulses, unfortunately I don't really like the method used to count the impulses. depending too much on the rotation speed of the encoder, in some cases it is very difficult to count a single pulse, pratycally impossible.
I would like to have the time to better test the problem, but I think I will leave it as it is and I will dedicate myself to the new realization of the "Easy Bitx" as soon as it arrives ...
I would like you to keep the forum informed about your test results, for any interesting changes to the encoder management software ... best wishes for your research ...
Good luck ... merry christmas and happy new years to you, your family and all forum readers.
 
de IW4AJR Loris


Re: Multiband antenna, Tx and Rx

vu3gao@...
 

Hi, 
Properly matched multiband antenna should not affect the digital Raduino,  but unbalanced multiband antenna  like those end feds and alike will put RF in the shack and may cause microcontroller to malfunction.

73s
Nitin VU3GAO


Multiband antenna, Tx and Rx

saiyam dutt
 

Dear all 
I have a question in mind please fill in with your experience. 
1 Dose the multiband antenna affect the Rx if bitx radio .
2 Dose the high SWR close to 1.9 or 2 on certain band affect your Tx by sending the radio in setup mode as soon as u press PPT swich .
Has any one faced similar issues 
Any suggestions on the subject are welcome .
Regards 


Re: Encoder issue

Reed N
 

Hi Barry,

Can you provide the minimal sketch that you're testing with? That is, if you rip out all of the code except the encoder reading code (and possibly some debug statements), do you still have the issue, and if so, can you post that code? Hard to help debug without knowing what exactly the code is.


Reed


Re: Encoder issue

barry halterman
 

Hello Jack. I spent most of the evening reading your book, programming the arduino. 
I have found a few different sketches to read an encoder and will try those tomorrow.
Barry
K3bo




On Sat, Dec 12, 2020, 9:44 PM Jack, W8TEE via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Try a simple example program using a different encoder library. Use on of the examples shipped with the library, set the proper pins, and see what happens. Some libraries are written such that they only act on the first, second, or fourth pulse.

Jack, W8TEE

On Saturday, December 12, 2020, 9:31:24 PM EST, barry halterman <kthreebo@...> wrote:


Greetings ubitx tinkers and programmers I might be going out on a limb here....
I am having an encoder issue and it seems like the issue is with the sketches that are being used on the V6 ubitx radios
I have tried different nano boards, different encoders and different sketches with the same results. What is happening
Is that the nano is NOT picking up the encoder transition when the transition goes from 1 to 3 and 3 to 2. It will count 
When the encoder transitions from 0 to 1 and 2 to 0. So the encoder is only generating half of the ticks it should. Does not matter if going clock wise
Or counterclockwise, the same results.
I have put my dual trace scope on both phase A and B inputs  and see the pulses at the correct voltage levels and proper timing.
So if the Hardware is functioning properly, then it must be that the program is not. Any ideas?
Thanks 
Barry
K3bo

--
Jack, W8TEE


Re: Encoder issue

Jack, W8TEE
 

Try a simple example program using a different encoder library. Use on of the examples shipped with the library, set the proper pins, and see what happens. Some libraries are written such that they only act on the first, second, or fourth pulse.

Jack, W8TEE

On Saturday, December 12, 2020, 9:31:24 PM EST, barry halterman <kthreebo@...> wrote:


Greetings ubitx tinkers and programmers I might be going out on a limb here....
I am having an encoder issue and it seems like the issue is with the sketches that are being used on the V6 ubitx radios
I have tried different nano boards, different encoders and different sketches with the same results. What is happening
Is that the nano is NOT picking up the encoder transition when the transition goes from 1 to 3 and 3 to 2. It will count 
When the encoder transitions from 0 to 1 and 2 to 0. So the encoder is only generating half of the ticks it should. Does not matter if going clock wise
Or counterclockwise, the same results.
I have put my dual trace scope on both phase A and B inputs  and see the pulses at the correct voltage levels and proper timing.
So if the Hardware is functioning properly, then it must be that the program is not. Any ideas?
Thanks 
Barry
K3bo

--
Jack, W8TEE


Encoder issue

barry halterman
 

Greetings ubitx tinkers and programmers I might be going out on a limb here....
I am having an encoder issue and it seems like the issue is with the sketches that are being used on the V6 ubitx radios
I have tried different nano boards, different encoders and different sketches with the same results. What is happening
Is that the nano is NOT picking up the encoder transition when the transition goes from 1 to 3 and 3 to 2. It will count 
When the encoder transitions from 0 to 1 and 2 to 0. So the encoder is only generating half of the ticks it should. Does not matter if going clock wise
Or counterclockwise, the same results.
I have put my dual trace scope on both phase A and B inputs  and see the pulses at the correct voltage levels and proper timing.
So if the Hardware is functioning properly, then it must be that the program is not. Any ideas?
Thanks 
Barry
K3bo


Re: Display on eBay? Assembled Raduino Clone 2.8" TJC LCD Si5351 VFO CEC Firmware v1.2 For uBITX V6

Tom, wb6b
 

On Wed, Dec 9, 2020 at 06:43 PM, Jack, W8TEE wrote:
Seems way too expensive. You can buy the TFT display for about $6, the Si5351 board for $8, an encoder for $2 and the software is free.
I've noticed a few other cases where the eBay sellers are selling for fairly high prices. Maybe they are testing the waters to see if they can migrate their business models to selling at higher profit margins?

But, you know you are a success when the Chinese sellers start copying your product.  

Tom, wb6b


Re: Display on eBay? Assembled Raduino Clone 2.8" TJC LCD Si5351 VFO CEC Firmware v1.2 For uBITX V6

IW4AJR Loris <lorisbollina@...>
 

Hi Frank,
excuse me for the question, do you know why "wvtek" doesn't ship to Italy? ... thanks
 
Greetings IW4AJR Loris


Re: SWR #ubitxv6 #swr

Bob Lunsford
 

Opening the angle/spreading the legs basically means lowering the apex/feedpoint a little bit and pulling up the legs so they do not sag so much...

Bob — KK5R

On Saturday, December 12, 2020, 11:11:39 AM EST, Lawrence Galea <9h1avlaw@...> wrote:


Just try to spread the legs more before you make any other adjustment
Regards

On Sat, Dec 12, 2020 at 4:00 PM Aaron K5ATG via groups.io <k5atg=yahoo.com@groups.io> wrote:
I'm not actually cutting any off. I'm just bending it around and wrapping it along the antenna wire. 
--
'72
Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080


Re: uBITX 6 AUDIO1 jack orientation

Mark Erbaugh
 

Mick,

I’m going to use CAT commands to switch PTT since my generic USB sound dongle doesn’t have any provision for PTT.  I plan on routing the fixed level sound output (VOL-H) and the mic input on the AUDIO1 jack to a 3.5mm TRS jack mounted on the rear panel. I’ll make up a custom cable to go from that to my USB sound dongle. To operate digital, I‘ll unplug the front panel mic. If needed, I have some audio isolation transformers that I can insert between the radio and the USB sound dongle.

73,
Mark, N8ME


On Dec 12, 2020, at 2:02 PM, Mick <Mgsebele@...> wrote:



Mark,
that will work well, I Installed the diGi  interface card because I’m lazy, I didn’t want to disconnect and reconnect the mic/ headphone connections when I changed from ssb to FT8.

The only thing you will need to watch out for is the PTT signal line must be disconnected between the Ubitx mic input jack and your USB card. Otherwise it most likely will trip the TX signal.
--
 

73
Mick VA3EPM 


Re: SWR #ubitxv6 #swr

Aaron K5ATG
 

I spread the legs out 12" on each side and the SWR went up. I put it back and did some minor tweaks to the legs and got the SWR down to 1.2:1 at 14.060 and I'm pretty sure that I'm not going to get it any better. The next step is to get an antenna tuner. I really appreciate all of the support and help that you guys have given me. I'm usually on FT8 (I can read, draw, and watch TV while "working the world" on FT8.) so I would love to get you guys in my logbook. 

--
'72
Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080


Re: uBITX 6 AUDIO1 jack orientation

Mick
 

Mark,
that will work well, I Installed the diGi  interface card because I’m lazy, I didn’t want to disconnect and reconnect the mic/ headphone connections when I changed from ssb to FT8.

The only thing you will need to watch out for is the PTT signal line must be disconnected between the Ubitx mic input jack and your USB card. Otherwise it most likely will trip the TX signal.
--
 

73
Mick VA3EPM 


Re: SWR #ubitxv6 #swr

Lawrence Galea
 

Just try to spread the legs more before you make any other adjustment
Regards

On Sat, Dec 12, 2020 at 4:00 PM Aaron K5ATG via groups.io <k5atg=yahoo.com@groups.io> wrote:
I'm not actually cutting any off. I'm just bending it around and wrapping it along the antenna wire. 
--
'72
Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080


Re: uBITX 6 AUDIO1 jack orientation

Mark Erbaugh
 

Mick,

 

Thanks for the information. I’m planning on connecting to a generic USB soundcard for digital modes.

 

73,

Mark, N8ME

 

 

 

From: Mick
Sent: Saturday, December 12, 2020 9:43 AM
To: BITX20@groups.io
Subject: Re: [BITX20] uBITX 6 AUDIO1 jack orientation

 

Mark,
At the time I was running the speaker output ( pins 7,8 Black and brown wires ) to USB sound dongle for digital FT8. I’ve since installed the kitsandparts digi interface and now connect to pins 1 and 4. See photo, the digi interface is in the second photo mounted on the back of the case.
--
 

73
Mick VA3EPM 

 


Re: SWR #ubitxv6 #swr

Aaron K5ATG
 

I'm not actually cutting any off. I'm just bending it around and wrapping it along the antenna wire. 
--
'72
Aaron Scott
QRPARCI# 16443
GQRP# 16389
4SQRP # 1080

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