Date   
Re: Audio in speakers during Tx

MVS Sarma
 

Mice,
 I had these experiences that old  Inveterted audio electronic telephones instruments called secraphones installed for VIPs  close to Radio Transmitters  used to misbehave.
 We immediately used to have a capacitor across the Mic module and telephone line Inop=put close to active components to byepass RF.
 You are right that even 1000pF would do.
 But afterall the audio at Volumen control point is coupled with 1 to 5uF capacitors.
 hence i thought even 0.1uF would not deteriorate audio.  The induction could be internal to amplispeaker also and thro power mine that powers the ampli speakers.
 Thu8s  I suppose that byepaasing audio at volume cotroll stage is better.
 regards
 sarma
 vu3zmv
  

Regards
MVS Sarma
 

On Wed, Feb 7, 2018 at 8:53 PM, Michael Hagen <motdog@...> wrote:

Might try looping lead (leads?) to amp thru a ferrite, or get the split clamp on ones, close to were it goes in the amp?

Wrap up in a coil any extra length of the cable.  Makes a common mode choke.

As Sarma says, maybe a 100 - 1000 pF bypass on each input?

73's

Mike, WA6ISP


On 2/7/2018 6:45 AM, Mvs Sarma wrote:
i imagine that Prabha jee
 Pleace a 01.1uF capacitor on ech channel, at the middle pin of Violume control to ground. It would byepass the RF induced in the speaker connecting cable.
  Aduio would disappear.
All the best
 sarma
 vu3zmv

Regards
MVS Sarma
 

On Wed, Feb 7, 2018 at 7:00 PM, Praba Karan <vu3dxr@...> wrote:
external amplispeaker...
i heard audio even volume down bottom.

Virus-free. www.avast.com

On Wed, Feb 7, 2018 at 6:18 PM, Mvs Sarma <mvssarma@...> wrote:
Is it external speaker or external amplispeaker?


Regards
MVS Sarma
 

On Wed, Feb 7, 2018 at 5:05 PM, Praba Karan <vu3dxr@...> wrote:
This issue is from microbitx




--
D.Prabakaran 
VU3DXR



-- 
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID  "MotDog@..."
Mike@...


Re: uBITX drive level.. #ubitx

M Garza <mgarza896@...>
 

Rob,
This is a change to the mic amp.  It will not fix the low power issue with the PA. 

Marco - KG5PRT 



On Feb 7, 2018 10:34 AM, "Rob Snow" <rsnow@...> wrote:
Thank you for the information.  Just to be clear, the changes from Mr. Kang have fixed your PA drive level with using the IRF510s?  No other changes?  Have you checked on 10m?

-Rob


Re: Audio in speakers during Tx

Michael Hagen
 

Yes, it depends on input Z of the amps.  I remember tube amps.   I built a big stereo in the 60's, they had Hi Z so low values worked.  I have a great story....... My neighbors had a water heater system with a big water holding solar panel on the roof.  When I fired up the SB200 or 220, it cycled their water pump.  They figured it out!   They heard me Yelling on the Mic during a DX Contest!  They put 2 and 2 together.

I had to go on the roof and put .1uF  on all their control switches and wiring!   It was a perfect 20 Ant. up there.

73's

Mike

 


On 2/7/2018 8:44 AM, Mvs Sarma wrote:
Mice,
 I had these experiences that old  Inveterted audio electronic telephones instruments called secraphones installed for VIPs  close to Radio Transmitters  used to misbehave.
 We immediately used to have a capacitor across the Mic module and telephone line Inop=put close to active components to byepass RF.
 You are right that even 1000pF would do.
 But afterall the audio at Volumen control point is coupled with 1 to 5uF capacitors.
 hence i thought even 0.1uF would not deteriorate audio.  The induction could be internal to amplispeaker also and thro power mine that powers the ampli speakers.
 Thu8s  I suppose that byepaasing audio at volume cotroll stage is better.
 regards
 sarma
 vu3zmv
  

Regards
MVS Sarma
 

On Wed, Feb 7, 2018 at 8:53 PM, Michael Hagen <motdog@...> wrote:

Might try looping lead (leads?) to amp thru a ferrite, or get the split clamp on ones, close to were it goes in the amp?

Wrap up in a coil any extra length of the cable.  Makes a common mode choke.

As Sarma says, maybe a 100 - 1000 pF bypass on each input?

73's

Mike, WA6ISP


On 2/7/2018 6:45 AM, Mvs Sarma wrote:
i imagine that Prabha jee
 Pleace a 01.1uF capacitor on ech channel, at the middle pin of Violume control to ground. It would byepass the RF induced in the speaker connecting cable.
  Aduio would disappear.
All the best
 sarma
 vu3zmv

Regards
MVS Sarma
 

On Wed, Feb 7, 2018 at 7:00 PM, Praba Karan <vu3dxr@...> wrote:
external amplispeaker...
i heard audio even volume down bottom.

Virus-free. www.avast.com

On Wed, Feb 7, 2018 at 6:18 PM, Mvs Sarma <mvssarma@...> wrote:
Is it external speaker or external amplispeaker?


Regards
MVS Sarma
 

On Wed, Feb 7, 2018 at 5:05 PM, Praba Karan <vu3dxr@...> wrote:
This issue is from microbitx




--
D.Prabakaran 
VU3DXR



-- 
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID  "MotDog@..."
Mike@...


-- 
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID  "MotDog@..."
Mike@...

Re: uBITX drive level.. #ubitx

Rob Snow
 

Oh, yes, now I see.  I got overly excited there for a moment seeing the 10w on 20m.

Joystick control?

LKNDAVE
 

has anyone played with a joystick for bitx control.
my thought is to use the ubiqutous KY-023 analog joystick module.
mounted in a single hole. they come threaded shaft and not.
2 10k linear taper pots with center "home" position. 
these also have a push button NO switch.
i envision using the X pot for shuttle tuning and the y pot for volume or other function, also using the shuttle concept and a XC9103 digital non-volitile potentiometer. 
any thoughts?
dave N4LKN

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

Konstantinos Konstas
 

Thank's Ian, very good effort.
I am running v 0.35 today, but I will upgrade to v 1.0 later on tonight.
Cat interface for ,say FlDigi, is a very useful feature.
Quite happy and Manager assists a lot.

I will come back with more feedback.

73 de Konstantinos, SV1ONW

On 7 February 2018 at 16:27, Ian Lee <kd8cec@...> wrote:
all
I wanted to do a simple hardware modification, so I early to finished firmware develop.
also almost no space left for the programming, I am going to work on fixing bugs.
This version of the concept is an upgrade without hardware modifications. No hardware modifications are required to use this firmware.



1.Cat communication support. (fldigi, wsjtx, hamradio delux, rpi... more)
2.New Frequency Tune method (threshold applied)
3.Ham band applied (can change general mode)
   (you can select region and adjust ham band by uBITX Manager)
4.CW Keying Change (Ron's code)
5.Key ADC Range adjust by uBITX Manager
6.Split (just VFOA/VOFB)
7.Channel Memory (20 Channels, 10 Channel has Tag (Name) by uBITX Manager)
8.TX Control (Many countries are imposing sanctions on transmittable frequencies.)
   This feature allows uBITX to be used in most countries.
9.Dual VFO Dial lock
10.IF Shift
11.Built in memory keyer (Auto key, CW Text input by uBITX Manager)
    I put a lot of funny features but I could not introduce them.
    For example, Hold during automatic transmission, and the ability to transmit manually and automatically transmit again.
    The ability to select and schedule other text by turning the dial during automatic transmission. more...
   
12.CW Mode (Just set the BFO for CW)
and more...

If you are interested, please refer to the link below. I posted a brief introduction and installation instructions.
There is always a source in the github repository that I am working on.
http://www.hamskey.com

Most of the features are easy to use, but we'll post them on our blogs and youtube for features that require clarification.
https://www.youtube.com/watch?v=9aqkQVioslk

Farhan, who made a very good transceiver, software and playground, and Ron, who improved cw keying, And my best thanks are those who have provided advice, tests and ideas.
(Perhaps somebody is still looking for a bug in the firmware or a feature to add.)

I am going to do some interesting hardware modifications. I'll have to buy a resistor to add a switch.
i will introduce another version that comes with hardware modifications.
-- 
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)




--
73 de SV1ONW

Re: Audio in speakers during Tx

ekelley
 

I had the same thing using amplified computer speakers. When I
plugged in a 8 ohm speaker it cleared up. Also the 3.5 mm speaker
jack has the tip and ring shorted which doesn't work well for a mono
speaker.
Ed

On 2/7/2018 5:34 AM, Praba Karan wrote:
I am using external speakers. During Tx, it picks transmitted audio.
Any remedies ?

Re: At long last!!

Art Howard
 

Ordered my new uBITX on December 18th just got notification of shipping.
 I ordered via DHL so hopefully not much longer

Re: uBITX rotary enconder

Michael Monteith
 

After I saw the post and responses I was wondering too.  I ran across this that might help.  If nothing else it helps with doing fast digital writes.

Quadrature Encoder too Fast for Arduino (with Solution)

If you do this let me know. 

73, Michael
KM4OLT

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

Max Lock
 

Thanks Ian for all your hard work, it's really appreciated! :)

I've not played with the ubitx manager as I use Linux, but is the CAT functionality ever likely to emulate the ft-718 memory read/write functionality?

eg.

maxwell@nimbus:~/Desktop$ rigctl --model=120 --set-conf=rig_pathname=/dev/ttyUSB0 -v e
Opened rig model 120, 'FT-817'
get_mem: error = Feature not available


-Cheers Max, G7UOZ.

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

Philip
 

Hi Max.
I think the firmware has left no room for memory's.

Philip Lock G7JUR

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

John P
 

Not familiar with your code, but maybe keep the memories in EEPROM. 
--
John - WA2FZW

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

Konstantinos Konstas
 

Ian,
Speaking of the Manager, it would be nice to run under Linux.
Any chance to play under Wine for example?

73 de Konstantinos, SV1ONW

On 7 February 2018 at 23:17, Max Lock <max@...> wrote:
Thanks Ian for all your hard work, it's really appreciated! :)

I've not played with the ubitx manager as I use Linux, but is the CAT functionality ever likely to emulate the ft-718 memory read/write functionality?

eg.

maxwell@nimbus:~/Desktop$ rigctl --model=120 --set-conf=rig_pathname=/dev/ttyUSB0 -v e
Opened rig model 120, 'FT-817'
get_mem: error = Feature not available


-Cheers Max, G7UOZ.







--
73 de SV1ONW

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

W2CTX
 

What minimum functions exactly are you looking for in a linux manager?

rOn

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

Mike Woods
 

There are 20 memory channels in the latest versions (0.35 and 1.0) and they are stored in EEPROM.

Mike


On Thu, 8 Feb 2018 at 11:14 AM, John P <j.m.price@...> wrote:
Not familiar with your code, but maybe keep the memories in EEPROM. 
--
John - WA2FZW

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

W2CTX
 

I would be careful since EEPROM has a finite write life!
These nano's are soldered in.

rOn



From: Mike Woods <mhwoods@...>
To: BITX20@groups.io
Sent: Wednesday, February 7, 2018 6:27 PM
Subject: Re: [BITX20] CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

There are 20 memory channels in the latest versions (0.35 and 1.0) and they are stored in EEPROM.

Mike

On Thu, 8 Feb 2018 at 11:14 AM, John P <j.m.price@...> wrote:
Not familiar with your code, but maybe keep the memories in EEPROM. 
--
John - WA2FZW


Re: W0EB/W2CTX Latest uBITX software release #ubitx

Jim Sheldon
 

It has just been called to my attention that there may be a bug in this version.  When entering the menu, it works fine for several iterations and then begins immediately returning to the main operation screen as soon as the encoder button is released rather than staying in the menu to allow selection of an item to change. 

We're looking into this and will post a fixed file as soon as possible.

W0EB and W2CTX

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

Ian Lee
 

Konstantinos

Thank you for information.
I ended up trying to starcraft Linux on Linux a long time ago.
using wine is good idea!!!.
If you're using wine on Linux, would you give it a try? I will challenge when the project is over.  And I also trying execute it on mono base.

Your opinion will be helpful.
Thanks agian   Konstantinos

Ian KD8CEC

2018-02-08 7:50 GMT+09:00 Konstantinos Konstas <constantine170@...>:

Ian,
Speaking of the Manager, it would be nice to run under Linux.
Any chance to play under Wine for example?

73 de Konstantinos, SV1ONW

On 7 February 2018 at 23:17, Max Lock <max@...> wrote:
Thanks Ian for all your hard work, it's really appreciated! :)

I've not played with the ubitx manager as I use Linux, but is the CAT functionality ever likely to emulate the ft-718 memory read/write functionality?

eg.

maxwell@nimbus:~/Desktop$ rigctl --model=120 --set-conf=rig_pathname=/dev/ttyUSB0 -v e
Opened rig model 120, 'FT-817'
get_mem: error = Feature not available


-Cheers Max, G7UOZ.







--
73 de SV1ONW



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

Re: CAT Support uBITX Firmware CEC Version 1.0 Release #ubitx

Ian Lee
 

Max
I have not used rigctl in command mode.  I'll try the rigctl command if I have a chance. 

In FT-817 compliant CAT control, eeprom read / write is rarely used. 
VFOA / VFOB conversion, get / set cw speed, get / set side tone, and get split status. 
I have run several programs and checking which using protocol with the logic analyzer.
and uBITX emulated only necessary protocols. So things that are not needed in uBITX like FT-817's output adjustment, antenna connector position, etc. will not be controlled.

Instead I created a new protocol for just uBITX eeprom control.
I made it so simple that it can be applied to all firmware within 20 lines of code.
uBITX Manager uses this protocol. 
uBITX Manager does not use FT-817 protocol but uses uBITX proprietary protocol, so it can not be controlled by general purpose program.


I am happy to get a lot of information while starting amateur radio again.

Ian KD8CEC

2018-02-08 6:17 GMT+09:00 Max Lock <max@...>:

Thanks Ian for all your hard work, it's really appreciated! :)

I've not played with the ubitx manager as I use Linux, but is the CAT functionality ever likely to emulate the ft-718 memory read/write functionality?

eg.

maxwell@nimbus:~/Desktop$ rigctl --model=120 --set-conf=rig_pathname=/dev/ttyUSB0 -v e
Opened rig model 120, 'FT-817'
get_mem: error = Feature not available


-Cheers Max, G7UOZ.






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

Re: W0EB/W2CTX Latest uBITX software release #ubitx

Jim Sheldon
 

Anyone else using our software that can confirm this behavior?  Not sure Here.

jim - W0EB