Date   
Re: Power of rf #ubitx #ubitx-help

Daniel Conklin
 

That is normal.  There are partial solutions available. Read the link I posted in my previous response for some options  

Re: Ubitx average SSB output

Mike aka KC2WVB <rb5363@...>
 

Quick question. I think that what your doing is the following: Presumably the audio from the mic's audio line that carries the ac with a dc offset is first passed through a capacitor to block the dc and then used as input into a small preamp, perhaps an op-amp before anything else occurs. If so, then I imagine by changing the value of the named resistor you are increasing the gain associated with the op-amps behavior and consequently the audio's amplification above that of what otherwise occurs.

If my conjecture is near valid I am wondering if there is another way to do this such as by using a little stand alone pre-amp immediately after the microphone and prior to the assumed dc blocking filter. I only wonder because one could then control the gain and I do not have the right stuff for SMD removal or replacement.

On Fri, May 25, 2018, 8:30 AM iz oos <and2oosiz2@...> wrote:

I have changed just R63 so now it is 24 ohm (I added 2 ordinary 100ohms resistors in parallel) as suggested. I confirm it increases the average power to the right level given the stock mic element. Could it be further decreased, let's say 10 ohms?


Il 27/apr/2018 16:26, "Howard Fidel" <sonic1@...> ha scritto:
1K. Change one or the other, not both.


On 4/27/2018 10:14 AM, iz oos wrote:

If R63=24ohm what value should R65 be?


Il 27/apr/2018 16:03, "Skip Davis via Groups.Io" <skipnc9o=yahoo.com@groups.io> ha scritto:
Howard did you also change out R65 that was posted here too.
By the way the parts showed up here yesterday, thanks a lot. Now to find time to install them.

Skip Davis, NC9O 

On Apr 27, 2018, at 09:57, Howard Fidel <sonic1@...> wrote:

Yes. Change R63 to 24 ohms. The earlier rev boards had 100 ohms there, and V3 has 47. I put another 47 ohm resistor in parallel with the one on the board. Now I don't need to yell into the mic.

Howard WB2VXW


On 4/27/2018 3:22 AM, iz oos wrote:

I have checked SSB output for the Ubitx using a Softrock sdr receiver. The carrier is well aligned and the filter gives a very good shape. Whistling is gives full output with the stock mic element. The output seems clean but the average power during normal speech seems to me a bit low. Is there an easy way to increase it? 73, Franco




Re: #bitx40help - Unit stuck in transmit #bitx40help

Allard PE1NWL
 

Re: Ubitx average SSB output

iz oos
 

Indeed, I initially thought to add a mic compressor, but reducing the value of R63 by adding a discrete resistor was the simplest thing to do. No smd was removed. It increased, probably doubled the average SSB power so I can more easily drive a small amplifier or whatever.


Il 26/mag/2018 00:14, "Mike aka KC2WVB" <rb5363@...> ha scritto:
Quick question. I think that what your doing is the following: Presumably the audio from the mic's audio line that carries the ac with a dc offset is first passed through a capacitor to block the dc and then used as input into a small preamp, perhaps an op-amp before anything else occurs. If so, then I imagine by changing the value of the named resistor you are increasing the gain associated with the op-amps behavior and consequently the audio's amplification above that of what otherwise occurs.

If my conjecture is near valid I am wondering if there is another way to do this such as by using a little stand alone pre-amp immediately after the microphone and prior to the assumed dc blocking filter. I only wonder because one could then control the gain and I do not have the right stuff for SMD removal or replacement.

On Fri, May 25, 2018, 8:30 AM iz oos <and2oosiz2@...> wrote:

I have changed just R63 so now it is 24 ohm (I added 2 ordinary 100ohms resistors in parallel) as suggested. I confirm it increases the average power to the right level given the stock mic element. Could it be further decreased, let's say 10 ohms?


Il 27/apr/2018 16:26, "Howard Fidel" <sonic1@...> ha scritto:
1K. Change one or the other, not both.


On 4/27/2018 10:14 AM, iz oos wrote:

If R63=24ohm what value should R65 be?


Il 27/apr/2018 16:03, "Skip Davis via Groups.Io" <skipnc9o=yahoo.com@groups.io> ha scritto:
Howard did you also change out R65 that was posted here too.
By the way the parts showed up here yesterday, thanks a lot. Now to find time to install them.

Skip Davis, NC9O 

On Apr 27, 2018, at 09:57, Howard Fidel <sonic1@...> wrote:

Yes. Change R63 to 24 ohms. The earlier rev boards had 100 ohms there, and V3 has 47. I put another 47 ohm resistor in parallel with the one on the board. Now I don't need to yell into the mic.

Howard WB2VXW


On 4/27/2018 3:22 AM, iz oos wrote:

I have checked SSB output for the Ubitx using a Softrock sdr receiver. The carrier is well aligned and the filter gives a very good shape. Whistling is gives full output with the stock mic element. The output seems clean but the average power during normal speech seems to me a bit low. Is there an easy way to increase it? 73, Franco




Re: RF power chain mods and improvements..

Glenn
 

Hi Allison,
Used only a pair (not matched) of 2N5109's in the FET driver stage. (Emitter resistor dropped and cap added as per post. All other stages were MPSH10's with 220pF across emitters..

Since I have not swept the LPF in the uBITX, I don't know what sort of harmonic suppression they offer.

With the same input level though as my previous post, harmonic output level was worse on the 2nd harmonic as its clearly overdriven. (I would expect the 2nd to be a bit better suppressed and the 3rd most prominent) was for example  on 40M, 2nd harm. -20dB and - 26 for the 3rd.

I dropped the drive level to -20dBm which gives 500mW at 7MHz, and the 2nd harm drops to -32dB,  as expected, to lower than the 3rd  which is now -27dB


.


Re: Ubitx average SSB output

Mike aka KC2WVB <rb5363@...>
 

Wow, you must have a rock steady hand to parallel a through hole resistor alongside the SMD resistor. I would not say I have Parkinson disease but my hands are not that steady.

I think I will see if I can find out what the immediate amplifier is after the microphone and the ac component of the audio from the Mic is and see if I can bring about the idea of a pre-amp with gain control. I think the only real problem would be clipping but if you check everything out rather than just stick a guess in it should pan out.

By the way thanks 'all' for the info. I would probably take that route too If I could keep my hands steady.

Mike

On Fri, May 25, 2018, 6:53 PM iz oos <and2oosiz2@...> wrote:

Indeed, I initially thought to add a mic compressor, but reducing the value of R63 by adding a discrete resistor was the simplest thing to do. No smd was removed. It increased, probably doubled the average SSB power so I can more easily drive a small amplifier or whatever.


Il 26/mag/2018 00:14, "Mike aka KC2WVB" <rb5363@...> ha scritto:
Quick question. I think that what your doing is the following: Presumably the audio from the mic's audio line that carries the ac with a dc offset is first passed through a capacitor to block the dc and then used as input into a small preamp, perhaps an op-amp before anything else occurs. If so, then I imagine by changing the value of the named resistor you are increasing the gain associated with the op-amps behavior and consequently the audio's amplification above that of what otherwise occurs.

If my conjecture is near valid I am wondering if there is another way to do this such as by using a little stand alone pre-amp immediately after the microphone and prior to the assumed dc blocking filter. I only wonder because one could then control the gain and I do not have the right stuff for SMD removal or replacement.

On Fri, May 25, 2018, 8:30 AM iz oos <and2oosiz2@...> wrote:

I have changed just R63 so now it is 24 ohm (I added 2 ordinary 100ohms resistors in parallel) as suggested. I confirm it increases the average power to the right level given the stock mic element. Could it be further decreased, let's say 10 ohms?


Il 27/apr/2018 16:26, "Howard Fidel" <sonic1@...> ha scritto:
1K. Change one or the other, not both.


On 4/27/2018 10:14 AM, iz oos wrote:

If R63=24ohm what value should R65 be?


Il 27/apr/2018 16:03, "Skip Davis via Groups.Io" <skipnc9o=yahoo.com@groups.io> ha scritto:
Howard did you also change out R65 that was posted here too.
By the way the parts showed up here yesterday, thanks a lot. Now to find time to install them.

Skip Davis, NC9O 

On Apr 27, 2018, at 09:57, Howard Fidel <sonic1@...> wrote:

Yes. Change R63 to 24 ohms. The earlier rev boards had 100 ohms there, and V3 has 47. I put another 47 ohm resistor in parallel with the one on the board. Now I don't need to yell into the mic.

Howard WB2VXW


On 4/27/2018 3:22 AM, iz oos wrote:

I have checked SSB output for the Ubitx using a Softrock sdr receiver. The carrier is well aligned and the filter gives a very good shape. Whistling is gives full output with the stock mic element. The output seems clean but the average power during normal speech seems to me a bit low. Is there an easy way to increase it? 73, Franco




Re: Ubitx average SSB output

Jerry Gaffke
 

He says he put a "discrete" resistor in parallel.  Could be SMD or thru-hole.
Sticking a discrete SMD resistor on top of an existing SMD resistor is quite easy.
As Allison says, it's like stacking bricks. 
Easier on the board than trying to remove the old one first.


On Fri, May 25, 2018 at 05:05 pm, Mike aka KC2WVB wrote:
Wow, you must have a rock steady hand to parallel a through hole resistor alongside the SMD resistor. I would not say I have Parkinson disease but my hands are not that steady.
 
I think I will see if I can find out what the immediate amplifier is after the microphone and the ac component of the audio from the Mic is and see if I can bring about the idea of a pre-amp with gain control. I think the only real problem would be clipping but if you check everything out rather than just stick a guess in it should pan out.
 
By the way thanks 'all' for the info. I would probably take that route too If I could keep my hands steady.
 
Mike
. . .

 

On Fri, May 25, 2018, 6:53 PM iz oos <and2oosiz2@...> wrote:

Indeed, I initially thought to add a mic compressor, but reducing the value of R63 by adding a discrete resistor was the simplest thing to do. No smd was removed. It increased, probably doubled the average SSB power so I can more easily drive a small amplifier or whatever.

 

Re: No audio on UbitX, U1 issue? #ubitx-help #ubitx

Mike aka KC2WVB <rb5363@...>
 

Look at your volume potentiometer. You have your yellow ground going to the wiper location on the potentiometer. I. E. Yellow and orange are reversed. I can't see the speaker connection but what I noticed is enough by itself because you defeated the potentiometer's functionability.

Mike 
PS Its an easy fix and these things do happen

On May 22, 2018 7:02 PM, <evanclarkie@...> wrote:
Hey, I'm new here. I just finished assembling my ubitx, and I was disappointed to find there was no audio. I double checked all my connections, and everything seems to be wired correctly.

I saw somewhere that the "WX" branded TDA2822M chips are of lower quality than others, and mine is a WX. Might this be the issue? 


BITX40: Simple attenuator mod #bitx40

 

I just finished a very simple attenuator mod to my BITX40 based on Don's (ND6T) simple RF Gain control mod : 

http://bitxhacks.blogspot.ca/2017/01/nd6ts-rf-gain-control-with-tombstoning.html

His trick of tombstoning R15 and putting a 10K variable resistor in series worked great for a simple RF gain control, but I didn't have any more room on my
front panel for another pot. I replaced an unused momentary switch with a tiny subminiature DPDT toggle switch wired up so that I switch a fixed 8K ohm resistor
in and out of the circuit. This gives me an approximate 10+ dB of attenuation to take the bite out of very strong signals. 

Thanks Don ! 

Cheers

Michael VE3WMB/VA2NB 

Re: Mic doesn't work in bitx40 #bitx40

Mike aka KC2WVB <rb5363@...>
 

I thought you were having trouble with sound coming out of the headphone jack while in receive mode???

If you are having issue with sound on receive:

Here are two pictures. One is a picture of the volume potentiometer and how it should be wired on the BitX40. The other is a picture of the audio headphone jack and how it should be wired on the BitX40.

If your having issues on the Mic:

I have not yet installed my microphone jack but it should be fairly easy and it probably goes like this. 

One pin out connector on the jack/receptor brings in probably 5 volts dc and probably has a 2.2K resistor in line with the wire providing the voltage. Another pin out on the jack/receptor corresponds with the shank of the 1/8 inch stereo plug and it is grounded. The last connector carries the ac audio signal on a dc offset voltage to a capacitor where the dc is stripped away leaving just ac that then probably goes into an amplifier before it goes anywhere else.

There are good 10 minute videos on YouTube that show how these electrec microphones work and it would probably surprise you to here that there is a jfet transistor in the microphone case but there is so you want to wire this thing exactly as told and not to deviate at all or it will not work.


On Tue, May 22, 2018, 1:22 AM <qonita.salimah@...> wrote:

Thanks for your reply..

I've already swap the leads of the electret mic. But the same thing is happened. What voltage suppose the capacitor showed exactly?
is there any limitation on how big the voltage is to make the mic work?

thank you very much

Re: Mic doesn't work in bitx40 #bitx40

Mike aka KC2WVB <rb5363@...>
 

One last thing that I should have mentioned. The heavy yellow wire in the picture of how I wired the volume potentiometer is the wire that comes from the positive side of the power supply to the switch feature on the potentiometer which is the bottom two pin outs on the potentiometer.

I used my own wire and all I had was yellow. I probably should have used red or brown which I think is what the kit uses but to me it did not matter other than I wanted a heavier gage wire than provided.

On May 25, 2018 9:11 PM, "Mike aka KC2WVB" <rb5363@...> wrote:
I thought you were having trouble with sound coming out of the headphone jack while in receive mode???

If you are having issue with sound on receive:

Here are two pictures. One is a picture of the volume potentiometer and how it should be wired on the BitX40. The other is a picture of the audio headphone jack and how it should be wired on the BitX40.

If your having issues on the Mic:

I have not yet installed my microphone jack but it should be fairly easy and it probably goes like this. 

One pin out connector on the jack/receptor brings in probably 5 volts dc and probably has a 2.2K resistor in line with the wire providing the voltage. Another pin out on the jack/receptor corresponds with the shank of the 1/8 inch stereo plug and it is grounded. The last connector carries the ac audio signal on a dc offset voltage to a capacitor where the dc is stripped away leaving just ac that then probably goes into an amplifier before it goes anywhere else.

There are good 10 minute videos on YouTube that show how these electrec microphones work and it would probably surprise you to here that there is a jfet transistor in the microphone case but there is so you want to wire this thing exactly as told and not to deviate at all or it will not work.

On Tue, May 22, 2018, 1:22 AM <qonita.salimah@...> wrote:

Thanks for your reply..

I've already swap the leads of the electret mic. But the same thing is happened. What voltage suppose the capacitor showed exactly?
is there any limitation on how big the voltage is to make the mic work?

thank you very much


Re: Ubitx average SSB output

Mike aka KC2WVB <rb5363@...>
 

Thanks Jerry for telling me the slick way of stacking the discrete resistor on top of the SMD. Still in all I'd like to practice on something that I will not miss if I goober things up. Honestly my hands have developed a terrible tremor at times and I have to find things to brace against when soldering.


On Fri, May 25, 2018, 8:28 PM Jerry Gaffke via Groups.Io <jgaffke=yahoo.com@groups.io> wrote:
He says he put a "discrete" resistor in parallel.  Could be SMD or thru-hole.
Sticking a discrete SMD resistor on top of an existing SMD resistor is quite easy.
As Allison says, it's like stacking bricks. 
Easier on the board than trying to remove the old one first.


On Fri, May 25, 2018 at 05:05 pm, Mike aka KC2WVB wrote:
Wow, you must have a rock steady hand to parallel a through hole resistor alongside the SMD resistor. I would not say I have Parkinson disease but my hands are not that steady.
 
I think I will see if I can find out what the immediate amplifier is after the microphone and the ac component of the audio from the Mic is and see if I can bring about the idea of a pre-amp with gain control. I think the only real problem would be clipping but if you check everything out rather than just stick a guess in it should pan out.
 
By the way thanks 'all' for the info. I would probably take that route too If I could keep my hands steady.
 
Mike
. . .

 

On Fri, May 25, 2018, 6:53 PM iz oos <and2oosiz2@...> wrote:

Indeed, I initially thought to add a mic compressor, but reducing the value of R63 by adding a discrete resistor was the simplest thing to do. No smd was removed. It increased, probably doubled the average SSB power so I can more easily drive a small amplifier or whatever.

 

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

John P
 

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

Join us as we make contacts with our BitX-40s or uBitXs or anything else on 7.277 MHz in 40 meters!

This is a worldwide event for BitX40 (and other QRP) stations starting at 3PM and 7pm in each time zone. To participate, call CQ BitX on Sunday, starting at 3PM and/or 7PM your local time. The BitX QSO Night continues through the evening and conditions usually improve after sunset, so it is worthwhile to participate later in the evening.

Suggested Best Operating Practices:

Work at QRP power levels unless conditions require more power.
Call and listen for CQ BITX on the hour and every quarter hour.
It is helpful if you call CQ BITX with your callsign, name and location. 
Repeat your callsign a number of times during your CQ BITX and during QSO's.
Start a QSO by confirming the callsign, location, name and signal report of the other operator.
Say the callsign, name and location of the other operator so others can hear.
If the frequency is busy, avoid long conversations.
After your initial QSO is complete, ask if there are any other stations who would like to contact.

Report your QSO's, discuss propagation, noise, signal reports, audio reports, antenna type, etc. in this thread.

This is an undirected, scheduled event.  The BITX QSO Night relies on you to call CQ BITX to initiate contacts with other stations, so warm up that final and transmit a few calls on Sunday evening.  Talk to you then!
--
John - WA2FZW

Re: uBITX Firmware CEC Version 1.08 S meter, etc

allen west
 

OK Ralph, I decided that I would learn how and reload the original software.  I have no idea what I am doing so I read a lot of web info and got the ch031 driver and the IDE loaded.  In the instructions it says to test driver by executing file, examples, basics and blink. I did and the little red led blinks with nothing on the display except the top line consists of full pixel squares.  This tells me IDE is working.  Problem is, I can’t get it to stop and go back to radio software.  Did my test overwrite the uBitx software?
I still cannot find step by step instructions for installing software.  This is the first time I have even seen IDE. Learning, I hope!

Thanks, Al
KB4RA


On May 25, 2018, at 4:54 PM, Ralph Mowery <rmowery42@...> wrote:

Right off hand I would say the BFO is way off, probably on the wrong sideband so to speak.

It is usually around 11.996.700, some  where around around 11.996 something instead of 12.something.


It may pay you to load in the original software from the ubitx web page.  That should get you close to calibration.

de ku4pt


On Fri, May 25, 2018 at 4:45 PM, allen west <kb4ra67@...> wrote:
Got uBitx set up a couple of weeks ago.  Audio quit, yes, I have the WX chip.  Getting audio from volume control via an external amp.  Made a couple of contacts but got terrible audio reports back.  I have calibration set correctly and get WWV on 10 and 15 MHz. Fine.  I cannot get BFO set.  Every time I think it is set, the station shows 1000 to 1200 cycles below the frequency of the actual station using a K3 as reference.  If I find a station on 7246 and set the dial on uBitx to 7246 and then set the BFO, I will find my station at 7244.8 or close.  I am following the procedure except the radio doesn’t respond tp PTT when in set up mode.  When I press function switch in set BFO, the display reads 12,665 and when I set it where I want it the PTT does nothing so I press function again.  Is that the problem?  Any ideas?

Thanks, Al

KB4RA


_

Re: Mic doesn't work in bitx40 #bitx40

Mike aka KC2WVB <rb5363@...>
 

If your still having trouble tomorrow, I'll wire my microphone jack/receptor and post a picture to this posting by Sunday afternoon.

Like I said before the little microphone has a JFet transistor in it. The pin out of the JFet called a 'gate' is attached to an internal aspect of the microphone that acts kind of like a plate in a capacitor. As you speak an internal outer plate vibrates and in doing so moves nearer then further from the part attached to the gate of the transistor and in doing so creates an ac current. The leg of the transistor called the 'source' is connected to the outside can of the microphone and must be connected to ground. One of the wires protruding from the bottom of the can is directly connected to this as well. The leg of transistor called the 'drain' is doing two things. It is providing dc voltage to the transistor from the power supply and since there must be a resistor prior to this leg it is also providing the path for the ac audio out that meanders to presumably a small op-amp or something similar.

If you mis-wired the microphone could you have damaged the microphone. It's hard to say without knowing the specifics. Transistors are like a diode and reversing the polarity could muck them up. If you know how to test a JFet transistor you could test your microphone. On the other hand they are very inexpensive and you can pick a new one up for under a dollar.

If you mis-wired the microphone could you have damaged the amplifier that the microphone feeds. Again it is hard to say. I've built little single stage amps with Bipolar Junction transistors, MOSFETs and integrated circuits such as the LM386 and in a confusion of wires around the breadboard I have reversed polarity without issue but I don't know enough to say that's not the case here. I hope not for you because it would be more difficult to fix from a mechanical point of view than replacing a burned up microphone.

Hope you resolve this issue.

Mike

On Fri, May 25, 2018, 9:20 PM Mike aka KC2WVB <rb5363@...> wrote:
One last thing that I should have mentioned. The heavy yellow wire in the picture of how I wired the volume potentiometer is the wire that comes from the positive side of the power supply to the switch feature on the potentiometer which is the bottom two pin outs on the potentiometer.

I used my own wire and all I had was yellow. I probably should have used red or brown which I think is what the kit uses but to me it did not matter other than I wanted a heavier gage wire than provided.

On May 25, 2018 9:11 PM, "Mike aka KC2WVB" <rb5363@...> wrote:
I thought you were having trouble with sound coming out of the headphone jack while in receive mode???

If you are having issue with sound on receive:

Here are two pictures. One is a picture of the volume potentiometer and how it should be wired on the BitX40. The other is a picture of the audio headphone jack and how it should be wired on the BitX40.

If your having issues on the Mic:

I have not yet installed my microphone jack but it should be fairly easy and it probably goes like this. 

One pin out connector on the jack/receptor brings in probably 5 volts dc and probably has a 2.2K resistor in line with the wire providing the voltage. Another pin out on the jack/receptor corresponds with the shank of the 1/8 inch stereo plug and it is grounded. The last connector carries the ac audio signal on a dc offset voltage to a capacitor where the dc is stripped away leaving just ac that then probably goes into an amplifier before it goes anywhere else.

There are good 10 minute videos on YouTube that show how these electrec microphones work and it would probably surprise you to here that there is a jfet transistor in the microphone case but there is so you want to wire this thing exactly as told and not to deviate at all or it will not work.

On Tue, May 22, 2018, 1:22 AM <qonita.salimah@...> wrote:

Thanks for your reply..

I've already swap the leads of the electret mic. But the same thing is happened. What voltage suppose the capacitor showed exactly?
is there any limitation on how big the voltage is to make the mic work?

thank you very much


Re: uBITX Firmware CEC Version 1.08 S meter, etc

Doug W
 

Al if you got as far as blink you are almost there.  Yes you did overwrite the µBITX sketch with the blink sketch but it is just as easy to reload it.  There is a good step by step tutorial here http://ubitx.net/how-to-load-up-a-sketch-on-your-raduino/

Re: uBITX Firmware CEC Version 1.08 S meter, etc

Jack, W8TEE
 

Yes, it did. You have the IDE working fine.

The attached ZIP file is the original uBITX software from afarhan/ubitx. I would suggest making a new directory on your hard drive C


and call it MicroBITX. So you now have:

C:/MicroBITX

Now unzip the attached ZIP file. When you unzip it, you will have the following files and directories:

   ubitx_20                   // a directory
   LICENSE.MD          // a file
   README.MD          //    "
   ubitx_wiring.png      //    "
   ubitxv3.pdf.              //    ''

Copy those files and the one directory to the MicroBITX directory so you now should have:

C:/MicroBITX/ ubitx_20                   // a directory
                        LICENSE.MD          // a file
                        README.MD          //    "
                        ubitx_wiring.png      //    "
                        ubitxv3.pdf.              //    ''

Now, load and run the Arduino IDE. Use the File --> Open menu to navigate to the C:/MicroBITX/ ubitx_20 directory. Open that directory and double-click on the ubitx_20.ino file. That will load all of the necessary files. Now do a compile/upload. This will overwrite the Blink program and replace it with Farhan's original code. Voila! Done.


Jack, W8TEE


On Friday, May 25, 2018, 11:16:17 PM EDT, allen west <kb4ra67@...> wrote:


OK Ralph, I decided that I would learn how and reload the original software.  I have no idea what I am doing so I read a lot of web info and got the ch031 driver and the IDE loaded.  In the instructions it says to test driver by executing file, examples, basics and blink. I did and the little red led blinks with nothing on the display except the top line consists of full pixel squares.  This tells me IDE is working.  Problem is, I can’t get it to stop and go back to radio software.  Did my test overwrite the uBitx software?
I still cannot find step by step instructions for installing software.  This is the first time I have even seen IDE. Learning, I hope!

Thanks, Al
KB4RA
_._,_._,_

Re: uBITX Firmware CEC Version 1.08 S meter, etc

allen west
 

Thank you Doug and Jack, ready to go in the morning.

Al
KB4RA


On May 25, 2018, at 11:35 PM, Jack Purdum via Groups.Io <jjpurdum@...> wrote:

Yes, it did. You have the IDE working fine.

The attached ZIP file is the original uBITX software from afarhan/ubitx. I would suggest making a new directory on your hard drive C


and call it MicroBITX. So you now have:

C:/MicroBITX

Now unzip the attached ZIP file. When you unzip it, you will have the following files and directories:

   ubitx_20                   // a directory
   LICENSE.MD          // a file
   README.MD          //    "
   ubitx_wiring.png      //    "
   ubitxv3.pdf.              //    ''

Copy those files and the one directory to the MicroBITX directory so you now should have:

C:/MicroBITX/ ubitx_20                   // a directory
                        LICENSE.MD          // a file
                        README.MD          //    "
                        ubitx_wiring.png      //    "
                        ubitxv3.pdf.              //    ''

Now, load and run the Arduino IDE. Use the File --> Open menu to navigate to the C:/MicroBITX/ ubitx_20 directory. Open that directory and double-click on the ubitx_20.ino file. That will load all of the necessary files. Now do a compile/upload. This will overwrite the Blink program and replace it with Farhan's original code. Voila! Done.


Jack, W8TEE


On Friday, May 25, 2018, 11:16:17 PM EDT, allen west <kb4ra67@...> wrote:


OK Ralph, I decided that I would learn how and reload the original software.  I have no idea what I am doing so I read a lot of web info and got the ch031 driver and the IDE loaded.  In the instructions it says to test driver by executing file, examples, basics and blink. I did and the little red led blinks with nothing on the display except the top line consists of full pixel squares.  This tells me IDE is working.  Problem is, I can’t get it to stop and go back to radio software.  Did my test overwrite the uBitx software?
I still cannot find step by step instructions for installing software.  This is the first time I have even seen IDE. Learning, I hope!

Thanks, Al
KB4RA
<ubitx-master.zip>

Re: uBITX Firmware CEC Version 1.08 S meter, etc

Ralph Mowery
 

Yes, you have just written over the original software.  You may want to go here and load in this modified software.


There is also a program called a Memory manager that makes it easy to modify the parameters in that version of the software.

Here is a vidio on how to do some of this.  It is a screen or two down.



if the file is in hex instead of ino , you need a program called XLoader.


There seems to be two ways to load in the files.  One is the hex file that is just a bunch of numbers and letters. The other is the ino file that is written in more or less English using a version of the C programming language.

de ku4pt


On Fri, May 25, 2018 at 11:16 PM, allen west <kb4ra67@...> wrote:
OK Ralph, I decided that I would learn how and reload the original software.  I have no idea what I am doing so I read a lot of web info and got the ch031 driver and the IDE loaded.  In the instructions it says to test driver by executing file, examples, basics and blink. I did and the little red led blinks with nothing on the display except the top line consists of full pixel squares.  This tells me IDE is working.  Problem is, I can’t get it to stop and go back to radio software.  Did my test overwrite the uBitx software?
I still cannot find step by step instructions for installing software.  This is the first time I have even seen IDE. Learning, I hope!

Thanks, Al
KB4RA

Re: uBITX Firmware CEC Version 1.08 S meter, etc

Ralph Mowery
 

One other thing, To learn how to do all this, you can get just the nano from anywhere .  I bought several of them form China off ebay for about $ 3 each.  While you will not have the display to look at, you should be able to play with it and see the programs load.


On Fri, May 25, 2018 at 11:16 PM, allen west <kb4ra67@...> wrote:
OK Ralph, I decided that I would learn how and reload the original software.  I have no idea what I am doing so I read a lot of web info and got the ch031 driver and the IDE loaded.  In the instructions it says to test driver by executing file, examples, basics and blink. I did and the little red led blinks with nothing on the display except the top line consists of full pixel squares.  This tells me IDE is working.  Problem is, I can’t get it to stop and go back to radio software.  Did my test overwrite the uBitx software?
I still cannot find step by step instructions for installing software.  This is the first time I have even seen IDE. Learning, I hope!

Thanks, Al
KB4RA


On May 25, 2018, at 4:54 PM, Ralph Mowery <rmowery42@...> wrote:

Right off hand I would say the BFO is way off, probably on the wrong sideband so to speak.

It is usually around 11.996.700, some  where around around 11.996 something instead of 12.something.


It may pay you to load in the original software from the ubitx web page.  That should get you close to calibration.

de ku4pt


On Fri, May 25, 2018 at 4:45 PM, allen west <kb4ra67@...> wrote:
Got uBitx set up a couple of weeks ago.  Audio quit, yes, I have the WX chip.  Getting audio from volume control via an external amp.  Made a couple of contacts but got terrible audio reports back.  I have calibration set correctly and get WWV on 10 and 15 MHz. Fine.  I cannot get BFO set.  Every time I think it is set, the station shows 1000 to 1200 cycles below the frequency of the actual station using a K3 as reference.  If I find a station on 7246 and set the dial on uBitx to 7246 and then set the BFO, I will find my station at 7244.8 or close.  I am following the procedure except the radio doesn’t respond tp PTT when in set up mode.  When I press function switch in set BFO, the display reads 12,665 and when I set it where I want it the PTT does nothing so I press function again.  Is that the problem?  Any ideas?

Thanks, Al

KB4RA


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