Re: I2C LCD mod required for CEC 1.073?
Info is here?
Start at 15k-33k-56k-120k-220k-470k.
This will give you a good spread of ADC values, and reliable switching.
I dont know why you should start at 100k.
Philip G7JUR
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is it possible to get the whole raduino board from hfsignals.com ?? ?guess my careless handling will cost me.? thanks for your help !!
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Quite often the manufacturer leaves an empty hole on the synthesizer socket. When you plug in the Nano, it can be one pin off. Make sure you eliminate the empty hole. Of course, you could have been one pin off regardless. And, there are other reasons the Nano can be destroyed. Any ideas ?
On Fri, May 4, 2018 at 1:26 PM, Vince Vielhaber <vev@...> wrote: People have found the best way is to cut it out one pin at a time, then desolder the remaining stubs from the pins.? ?It's been suggested to put a socket in it, then others have said if you do that it gets in the way of the display.? I never paid that much attention 'cuze I've never had to replace one.? I've blown up plenty of nanos, but not in a raduino.
Vince.
On 05/04/2018 03:53 PM, rickaputi via Groups.Io wrote:
Thanks, vince....you are probably right.....i checked the current
draw..about 575 ma. unplugged the raduino and down to 76 ma....how do i
replace that?
--
? Michigan VHF Corp.? ?? ?
? ? ? ? ? ? ? ? ? ? ? ? ?
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People have found the best way is to cut it out one pin at a time, then desolder the remaining stubs from the pins. It's been suggested to put a socket in it, then others have said if you do that it gets in the way of the display. I never paid that much attention 'cuze I've never had to replace one. I've blown up plenty of nanos, but not in a raduino.
Vince.
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On 05/04/2018 03:53 PM, rickaputi via Groups.Io wrote: Thanks, vince....you are probably right.....i checked the current
draw..about 575 ma. unplugged the raduino and down to 76 ma....how do i
replace that?
--
Michigan VHF Corp.
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Of course, that linear amp should be vaguely linear, and not flat-topping your 1.8mhz into a square wave.
Could be that it will clean up considerably if you turn down the gain at RV1.
But even if you get it looking like a sine wave on the scope, will still need the 160m filter.
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On Fri, May 4, 2018 at 10:36 am, Jerry Gaffke wrote:
Not unexpected, looks vaguely like a square wave, which is what you get from a sum of odd harmonics.
The relays are selecting the 80m low pass filter, with a corner about halfway between 4mhz and 7mhz, so 6.0mhz.
Third harmonic of 1.8mhz is 5.4mhz, which is going to get passed quite well by your 80m filter.
The push-pull amp probably nulls out most of the second harmonic.? So we get the fundamental and the 3'rd harmonic.
Hook that up to an antenna and you will be getting heard quite well on both 1.8 and 5.4 mhz.
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plugged the raduino into my windows 10 computer and it saying that the device is not functioning.....Garn !!
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Thanks, vince....you are probably right.....i checked the current draw..about 575 ma. unplugged the raduino and down to 76 ma....how do i replace that?
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Re: I2C LCD mod required for CEC 1.073?
Don't go over 500K.?? The readout is
too close to the normal value (255) of open switches [so I
discovered!]
Mike ZL1AXG
On 5/05/18 1:22 AM, Philip wrote:
Info is here?
Start at 15k-33k-56k-128k-220k-470k.
This will give you a good spread of ADC values, and reliable
switching.
I dont know why you should start at 100k.
Philip G7JUR
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Re: error in memory manager
Hello Ralph,
I would check the communication parameters:
1. Have you got the right USB port (the same as for uploading the HEX file). I suspect you have that right as it reads one byte, but please double check.
2. The parameters are 38400, None (for parity), 8 (bits data), One (stop bit). This is different to the programming settings as it communicates with the CAT section of the uploaded program.
73, John (VK2ETA)
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You very well may have hosed your nano. disconnect the raduino from the radio and plug the usb in to your computer. What do you see?
Vince.
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On 05/04/2018 03:17 PM, rickaputi via Groups.Io wrote: SOMETHING SHORTED WHILE IN BREADBOARD STAGE...NOW ONLY GET AUDIO FROM
BOARD...NO RADUINO FUNCTION....VOLTAGE REGULATOR GETTING HOT ON RADUINO
BOARD..DISPLAY SHOWS THE SEGMENTED LINE ON TOP....NO TEXT. ANY CLUES AS
TO WHAT COULD BE WRONG ? THANKS.
--
Michigan VHF Corp.
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Re: error in memory manager
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SOMETHING SHORTED WHILE IN BREADBOARD STAGE...NOW ONLY GET AUDIO FROM BOARD...NO RADUINO FUNCTION....VOLTAGE REGULATOR GETTING HOT ON RADUINO BOARD..DISPLAY SHOWS THE SEGMENTED LINE ON TOP....NO TEXT. ANY CLUES AS TO WHAT COULD BE WRONG ?? THANKS.
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Re: For those keeping track of uBITX shipping times
#ubitx
I ordered my ubitx kit on 18 April. DHL picked up the package from Hyderabad on 2 May. The ubitx package just arrived in the US at my house on 4 May. That is fast delivery.
Vick KG7UNJ
?
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Re: 45Mhz crystal filter specification
Tim? AB0WR
If you were to load your filter components into LTSpice and do a gain-frequency run
on the design it might highlight where the problem is.? With LTSpice it is possible to
do what-if changes to optimize your filter designs.
I usually include the stage before and the stage following an existing filter because
that evaluates the filter using its actual in-circuit impedances and drive levels.
Arv? K7HKL
_._
On Fri, May 4, 2018 at 12:12 PM, Tim Gorman <tgorman2@...> wrote: Allison,
I redid the scans with a 1khz resolution in order to help with the
frequency resolution.
Doing this shows the 45mhz signal to be right on. The 33mhz signal is
right on also except in a couple of the scans I picked the wrong peak.
Frequencies at the ends of the scans are off for some reason. The sig
gen *is* at 3900khz and the vfo is also at 48900khz. My freq counter
and my scope (rigol ds1074) both confirm that.
Why the 45mhz filter drops the 45mhz signal by 50dbm and the 48.9mhz
signal by only 30db still concerns me.
I've also included scans at a couple of other points in the receiver.
I must confess I'm at a loss here. My next step will probably be to
turn the drive off to the finals, connect up my 2-tone generator and
try to trace the signal through the transmit side to see where it is
disappearing! If it disappears in the 45mhz filter then I'll need to
contact Ashar to see what filter he is using.
Thanks for your help.
tim ab0wr
On Thu, 03 May 2018 18:13:01 -0700
"ajparent1/KB1GMX" <kb1gmx@...> wrote:
> The 45mhz filter is rather narrow If memory serves its a 15khz (wide)
> unit which is typical for common use (FM first IF work).? ?So for low
> attenuation you need to be between 44.9925 to about 45.0075mhz.
>
> The one marker is 44.9625mhz? which is 37k Khz off of center, I'd
> expect a fair amount of attenuation there compared to inband.
>
> Could your LO cal be off or the RIT/PBT be active?
>
> Allison
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Re: error in memory manager
Ralph
Since you have a spare NANO and are learning programming, it might be interesting
to make that Arduino into one or more of several pieces of test equipment that will
support your uBITX when it does arrive.? With its ADC (Analog) inputs the NANO could
be a digital voltmeter with manual or automatic ranging.? Using any of several thermal
sensors to make a contact or IR based thermometer for BITX RF PA stages.? And of course
a signal generator with an Si5351a.? Or frequency meter with a N/10 prescaler (or N/100
for up to VHF measurements).?
This software then could eventually be folded into a built-in-test-equipment suite for
BITX systems.
Arv
_._
On Fri, May 4, 2018 at 11:08 AM, Ralph Mowery <rmowery42@...> wrote: I am trying to learn how to manage the uBITX programming while waiting on mine to arrive.
I have a nano and LCD hooked up and can load in the hex file and see the display.
When I call up the memory manager I can see the display reboot.? When I try to read the nano I get an error.
Shows the time, then Error Receive Length= 1/1027
I have tried several versions of both the memory manager and the programming.
Last try was MM 1.04 and program 1.073.
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Re: 45Mhz crystal filter specification
Allison, I redid the scans with a 1khz resolution in order to help with the frequency resolution. Doing this shows the 45mhz signal to be right on. The 33mhz signal is right on also except in a couple of the scans I picked the wrong peak. Frequencies at the ends of the scans are off for some reason. The sig gen *is* at 3900khz and the vfo is also at 48900khz. My freq counter and my scope (rigol ds1074) both confirm that. Why the 45mhz filter drops the 45mhz signal by 50dbm and the 48.9mhz signal by only 30db still concerns me. I've also included scans at a couple of other points in the receiver. I must confess I'm at a loss here. My next step will probably be to turn the drive off to the finals, connect up my 2-tone generator and try to trace the signal through the transmit side to see where it is disappearing! If it disappears in the 45mhz filter then I'll need to contact Ashar to see what filter he is using. Thanks for your help. tim ab0wr On Thu, 03 May 2018 18:13:01 -0700 "ajparent1/KB1GMX" <kb1gmx@...> wrote: The 45mhz filter is rather narrow If memory serves its a 15khz (wide)
unit which is typical for common use (FM first IF work).? ?So for low
attenuation you need to be between 44.9925 to about 45.0075mhz.
The one marker is 44.9625mhz? which is 37k Khz off of center, I'd
expect a fair amount of attenuation there compared to inband.
Could your LO cal be off or the RIT/PBT be active?
Allison
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Start with teaching our kids. I did that to mine as already mentioned.
Things are not free, movies, music books etc. but this age of torrents
etc. and assumptions gets kids started on the wrong path.
Because it online and available does not make it NOT stealing :(
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On Fri, May 4, 2018 at 1:05 PM, <ckotan@...> wrote: Grrrrrrr, Jack! I hates me some thieves!! As a software developer, I share
your pain. I'm thinking about self publishing, so your troubles will be
kept in mind as I work out a solution. Thanks for sharing.
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Not unexpected, looks vaguely like a square wave, which is what you get from a sum of odd harmonics.
The relays are selecting the 80m low pass filter, with a corner about halfway between 4mhz and 7mhz, so 6.0mhz.
Third harmonic of 1.8mhz is 5.4mhz, which is going to get passed quite well by your 80m filter.
The push-pull amp probably nulls out most of the second harmonic.? So we get the fundamental and the 3'rd harmonic.
Hook that up to an antenna and you will be getting heard quite well on both 1.8 and 5.4 mhz.
Jerry
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On Fri, May 4, 2018 at 10:21 am, John wrote:
This how CW at 160m looks like.
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Re: uBitx 20 goes to Alignment on startup
First off, Ian's ubitx manager is NOT compatible with our software so there is likely a good part of your problem. ?Our software was and is designed to be stand-alone, not run through anyone else's "manager" program. ?It's also designed to be compiled using the Arduino IDE and uploaded to the NANO using the same Arduino IDE.
I cannot troubleshoot problems caused by improper installation of programs and have to say I'm sorry. ?If you want to run the W0EB/W2CTX programs, they have to be run as the only program installed on your NANO. ?We cannot be responsible for what other programmers have done in their code and that likely makes their programs incompatible with ours.
This is in no way meant to disparage or criticize other's programming, merely stating that we do not copy or use their code to write ours and therefore have no way to allow our programming to be run as part of theirs, so if you try to do that, you are totally on your own and I can't help troubleshoot your efforts. ?If you had posted that information in the first place, this conversation would have been MUCH shorter.
Sorry,
Jim, W0EB
------ Original Message ------
Sent: 5/4/2018 12:22:56 PM
Subject: Re: [BITX20] uBitx 20 goes to Alignment on startup
Hi Jim, thank you for replying ... well I suppose i better
explain what happened :'(
I was trying to load a program via ubitx manager with a raspberry
pi and the pi crashed and crashed my ubitx at the same time so I
would say the software isore than likely curropt as I did have the
radio running perfectly. I have the radio now about two months and
am really having fun with it, I even added the four vextra buttons
to it during the week and they worked perfectly so all was well
until the raspberry pi crashed and took the radio with it so I
really dont know much about programming the arduino? nano but ill
have a really good try HeHeHe... Hopefully Ill be able to get it
back as i really enjoy playing with it and your programs ( Thank
you ever so much for sharing all with us) I think its the best
little radio that came out in years and it was getting me back
into CW which I didnt do in about 25 years and hopefully get me to
know the Arduino language as well :-)
?Thanks a million once again for your help .. EI8IG Jim
On 04/05/2018 17:41, Jim Sheldon wrote:
Well, you are the only one that has ever reported this
problem so I believe you have a bad Arduino NANO on your Raduino
card, or your Nano's A2 input is shorted to ground. ?That's just
about all that could cause this problem unless the software
somehow got corrupted. ?Just in case that happened, please go to
?and
click on the?"W0EB/W2CTX uBITX Files" link. ?That will take you
to where you can download V2.02R again. (The other zip files
there are for the I2C enabled displays and won't work on your
uBITX) Try re-compiling V2.02R and re-loading it to your NANO.
?If that doesn't work, the only option is probably to replace
the NANO. ?
I just recently created this website to make it easier to
find our software releases and other stuff we're doing for the
uBITX.
Jim, W0EB
------ Original Message ------
Sent: 5/4/2018 11:08:05 AM
Subject: Re: [BITX20] uBitx 20 goes to Alignment on startup
Thanks for the reply;
checked for shorts, found none...
does same with function button disconnected.
Jim ei8ig
On 04/05/2018 16:48, Jim Sheldon
wrote:
Sounds like your encoder/function button is shorted or
you have a Raduino Digital Plug pin 6 (red wire) shorted
to ground. ?Either that or a shorted A2 analog input on
your NANO.
W0EB
------ Original Message ------
Sent: 5/4/2018 10:43:22 AM
Subject: [BITX20] uBitx 20 goes to Alignment on startup
firmware :
groups.io/g/BITX20/files/ubitx_V2_02.zip
uBitx 20 goes to Alignment on startup with no button
press
can't reprogram arduino in Alignment mode
thanks Jim ei8ig
|
Re: uBitx 20 goes to Alignment on startup
Hi Jim, thank you for replying ... well I suppose i better
explain what happened :'(
I was trying to load a program via ubitx manager with a raspberry
pi and the pi crashed and crashed my ubitx at the same time so I
would say the software isore than likely curropt as I did have the
radio running perfectly. I have the radio now about two months and
am really having fun with it, I even added the four vextra buttons
to it during the week and they worked perfectly so all was well
until the raspberry pi crashed and took the radio with it so I
really dont know much about programming the arduino? nano but ill
have a really good try HeHeHe... Hopefully Ill be able to get it
back as i really enjoy playing with it and your programs ( Thank
you ever so much for sharing all with us) I think its the best
little radio that came out in years and it was getting me back
into CW which I didnt do in about 25 years and hopefully get me to
know the Arduino language as well :-)
?Thanks a million once again for your help .. EI8IG Jim
On 04/05/2018 17:41, Jim Sheldon wrote:
toggle quoted message
Show quoted text
Well, you are the only one that has ever reported this
problem so I believe you have a bad Arduino NANO on your Raduino
card, or your Nano's A2 input is shorted to ground. ?That's just
about all that could cause this problem unless the software
somehow got corrupted. ?Just in case that happened, please go to
?and
click on the?"W0EB/W2CTX uBITX Files" link. ?That will take you
to where you can download V2.02R again. (The other zip files
there are for the I2C enabled displays and won't work on your
uBITX) Try re-compiling V2.02R and re-loading it to your NANO.
?If that doesn't work, the only option is probably to replace
the NANO. ?
I just recently created this website to make it easier to
find our software releases and other stuff we're doing for the
uBITX.
Jim, W0EB
------ Original Message ------
Sent: 5/4/2018 11:08:05 AM
Subject: Re: [BITX20] uBitx 20 goes to Alignment on startup
Thanks for the reply;
checked for shorts, found none...
does same with function button disconnected.
Jim ei8ig
On 04/05/2018 16:48, Jim Sheldon
wrote:
Sounds like your encoder/function button is shorted or
you have a Raduino Digital Plug pin 6 (red wire) shorted
to ground. ?Either that or a shorted A2 analog input on
your NANO.
W0EB
------ Original Message ------
Sent: 5/4/2018 10:43:22 AM
Subject: [BITX20] uBitx 20 goes to Alignment on startup
firmware :
groups.io/g/BITX20/files/ubitx_V2_02.zip
uBitx 20 goes to Alignment on startup with no button
press
can't reprogram arduino in Alignment mode
thanks Jim ei8ig
|
Michael Shreeve
Jim Sheldon
Jim