Date   

Re: I find This Shorted Circuit on Raduino, here the pics..plz Help? #ubitx-help

Skip Davis
 

Fabian, there are other time stations that maybe better for you to use out of Moscow and Spain they may be stronger that WWV. 
This will give you many frequencies to tryout. There is a manual for Ian’s Memory Manager software in the file section I believe and I forgot who wrote it. 
Nice case for your UBITX you have done a nice job

Skip Davis, NC9O 

On Sep 24, 2018, at 11:44, sdr freak <sdrfreak55@...> wrote:

First i should say very much thanks for all people who here helping me!

I can really say this because this is my only help station that i have, here in this forum!
So please let us make this horrible distaster making great again to an working and full function Ubitx v3 that i have and this is the only way for me to become an first QSO and i have no way to buy an transceiver because of money issue in conect with my healt is an real job not able for me to save up money for an yaesu or so ...
So its more than an fight for me to become this Ubitx in an way for i can use to receive and tranceive.. i must say this story again to show you my my sadness and desparation... And this desparation is horrible when never a real success is in near perspective to seen...

Ok i work everyday on this ubitx for finding new answer and i read online and show video on youtube and last weekend 3 HAM and me make an run to SOTA in the Thuringia Woods "großer Gleichberg" and here the picture were when i was searching for Receive at higher mountain and i would show you that i am really everytime search for new abilty to test...

<20180916_173023_resized.jpg>

<20180916_173015_resized.jpg>

<IMG_20180916_163542_454_resized.jpg>

<20180916_172521_resized.jpg>

That day i intalled CEC 1.08 and first Received many FT8 sounds at 80m, 60m, 40m, 30m, 20m... But no AM radio station was find,only my opinion say there can be an AM radio Station but the modulation was incompleate and but a few SSB station was like the same issue, i have heared Voice SSB but really not hearable in view like it should be.. it was not able to hear the Voice clearly and it looks like this issue that the BFO and or even more the more Master Calibration is here the thing what makes this issue that AM not really able to hear and SSB voice not really able to hear but and this say on HAM by looking at 7.074mhz FT8 signal and say there is an issue and say this can not be ok that at this Band the 7.074mhz FT8 signal is heared in LSB! And he think it was all versus in my Ubitx v3...

And that is the issue what i'am think too at today.. Can this be real that my whole bad Receive issue is coming from an bad and wrong Calibration (Master Calibration/Zero Beat/BFO) and this is the whole thing i have to correct? And this day was till today the best Receive Test i have had... But it is reall, sad when i say Receive to this what i have heared and the other 3 HAM friends on this day say there is an big Calibration or on pcb/bad ic issue but they all are only HAM with buying ready stuff and no one from they ever make homebrew or Calibration or any thing what looks like work under the case of an transceiver.. so they can not help me but have makr an contact for 5.oktober.2018 with the only HAM professionel here in town who make work at qrp project and homebrew for years..but till that day i don't want sit here an do nothing.. i think all here know what i mean whit this issue that i have ...

So now i can ask for new question... Here are few picture from my Ubitx and it show the inner construction to show you my version is built up.. here please look

<20180924_155604.jpg>

<20180924_155737.jpg>

<20180924_155948.jpg>

To the Mamory Manager....  I'm use for upload the CEC1.08-2004P.hex file and i have download and make a look in the ubitx manager but never use for for calibration or any other point..because i found no answer online to use this MM with an setting or for factory set for my problem.. 

When the Calibration is the issue that i really think now,too. But i see ways for calibration with WWV(time signal) or with an Frequency Generator, but i don't have this tool. And the WWV timr signal at 10mhz would be not not confirmed by CEC software maker Ian... He say the MM with an Frequency Counter directly connected to the SI5351 and an simple calculator he used for find his correct Master Calibration... An Frequency Counter i don't have, too.

But the WWV signal at 10mhz i never received but i have receive a few few times short time, a few minute or only seconds sometimes, was received at 9.65mhz and 9.55mhz but never at 10.000mhz so its a point for wrong calibration i should have, too.

When i only find one way to set i was soo much thankfully, i can't describe how much luck this showing me..

Thank you for your picture, ok i see the pcb line yes and when you have v3 board too with fci then we have even a new way toghether to become this luck. When you say we have the same board, then is the simple thing when i make the same setting that you have in MM like same Master Calibration and other setted Values?!

Can you give me please an Screenshot of your value numbers in the MM?? that can be the allmighty breakthrough!

When you have an 2004paralell Lcd Display then it was even better when i can have your copy of saved MM file but i think you have an other display or not so?

Now i have new hope from this idea...


Best Regards Fabian !


Re: Amplifier chain design - best practices

ajparent1/KB1GMX <kb1gmx@...>
 

Obviously you didn't get the folllow up pointing out the oops.


Re: Bitx40 vs. uBitx

YO8UFO
 

But actually what is happening? You can hear stations on 20m band with ICOM but cannot hear them with uBitx? 


Re: I find This Shorted Circuit on Raduino, here the pics..plz Help? #ubitx-help

sdr freak
 

First i should say very much thanks for all people who here helping me!

I can really say this because this is my only help station that i have, here in this forum!
So please let us make this horrible distaster making great again to an working and full function Ubitx v3 that i have and this is the only way for me to become an first QSO and i have no way to buy an transceiver because of money issue in conect with my healt is an real job not able for me to save up money for an yaesu or so ...
So its more than an fight for me to become this Ubitx in an way for i can use to receive and tranceive.. i must say this story again to show you my my sadness and desparation... And this desparation is horrible when never a real success is in near perspective to seen...

Ok i work everyday on this ubitx for finding new answer and i read online and show video on youtube and last weekend 3 HAM and me make an run to SOTA in the Thuringia Woods "großer Gleichberg" and here the picture were when i was searching for Receive at higher mountain and i would show you that i am really everytime search for new abilty to test...









That day i intalled CEC 1.08 and first Received many FT8 sounds at 80m, 60m, 40m, 30m, 20m... But no AM radio station was find,only my opinion say there can be an AM radio Station but the modulation was incompleate and but a few SSB station was like the same issue, i have heared Voice SSB but really not hearable in view like it should be.. it was not able to hear the Voice clearly and it looks like this issue that the BFO and or even more the more Master Calibration is here the thing what makes this issue that AM not really able to hear and SSB voice not really able to hear but and this say on HAM by looking at 7.074mhz FT8 signal and say there is an issue and say this can not be ok that at this Band the 7.074mhz FT8 signal is heared in LSB! And he think it was all versus in my Ubitx v3...

And that is the issue what i'am think too at today.. Can this be real that my whole bad Receive issue is coming from an bad and wrong Calibration (Master Calibration/Zero Beat/BFO) and this is the whole thing i have to correct? And this day was till today the best Receive Test i have had... But it is reall, sad when i say Receive to this what i have heared and the other 3 HAM friends on this day say there is an big Calibration or on pcb/bad ic issue but they all are only HAM with buying ready stuff and no one from they ever make homebrew or Calibration or any thing what looks like work under the case of an transceiver.. so they can not help me but have makr an contact for 5.oktober.2018 with the only HAM professionel here in town who make work at qrp project and homebrew for years..but till that day i don't want sit here an do nothing.. i think all here know what i mean whit this issue that i have ...

So now i can ask for new question... Here are few picture from my Ubitx and it show the inner construction to show you my version is built up.. here please look







To the Mamory Manager....  I'm use for upload the CEC1.08-2004P.hex file and i have download and make a look in the ubitx manager but never use for for calibration or any other point..because i found no answer online to use this MM with an setting or for factory set for my problem.. 

When the Calibration is the issue that i really think now,too. But i see ways for calibration with WWV(time signal) or with an Frequency Generator, but i don't have this tool. And the WWV timr signal at 10mhz would be not not confirmed by CEC software maker Ian... He say the MM with an Frequency Counter directly connected to the SI5351 and an simple calculator he used for find his correct Master Calibration... An Frequency Counter i don't have, too.

But the WWV signal at 10mhz i never received but i have receive a few few times short time, a few minute or only seconds sometimes, was received at 9.65mhz and 9.55mhz but never at 10.000mhz so its a point for wrong calibration i should have, too.

When i only find one way to set i was soo much thankfully, i can't describe how much luck this showing me..

Thank you for your picture, ok i see the pcb line yes and when you have v3 board too with fci then we have even a new way toghether to become this luck. When you say we have the same board, then is the simple thing when i make the same setting that you have in MM like same Master Calibration and other setted Values?!

Can you give me please an Screenshot of your value numbers in the MM?? that can be the allmighty breakthrough!

When you have an 2004paralell Lcd Display then it was even better when i can have your copy of saved MM file but i think you have an other display or not so?

Now i have new hope from this idea...


Best Regards Fabian !


ND6T AGC

Joe Puma
 

Is there a place I can order this kit from? I don’t see it available as a purchase anywhere.


Joe


Re: Ubitx evolving fixes updated to wiki? #ubitx #ubitx-help

Michael Monteith
 

Vince,
 Thanks.  It's good seeing people looking for other ways to solve a problem or add features.  Kudos to you.

73, KM4OLT
Michael


Re: NEXTION DISPLAY UPDATES For KD8CEC ver 1.094 up

KM4TRT
 

Richard,
I have the Nextion 2.4 display and you can drill one hole in the Sunil's case and mount it on the front
on 3/8" stand offs (2 diagonally).  Not too elegant but now I can run it and decide if I want to modifiy the case an place inside
and/or make a bezel.
Has anyone had a problem with the display going off after a few minutes.
Mine goes dark after about 3 minutes and usually comes back on if I turn the encoder rapidly.
Andy KM4TRT


Re: Ubitx - using Amateurradiokits.in AGC #ubitx

John McClun
 

Uploaded schematics & adjustment procedure that Sunil sent for uBitx to folders. Should help with using his AGC. 
--
John
NQ3RP


Re: No Signal on uBit-x #ubitx-help

KM4TRT
 

Allison, Joe,
I do not seem to have that option for recalibration.  I'm on version 1.09 of Dr Lee's software.  
However, Allison was right on .  I recalibrated a couple of times and receive has returned and transmitting about 5 watts.
Thanks for straightening me out before I ripped the unit apart.

Has any one had trouble with the Nextion screen going off after a while?
After about 2-3 minutes, the screen goes dark.  Sometimes if I immediately turn the encoder , it comes back on,
but some time I have to reboot.
Andy


Re: Bitx40 vs. uBitx

MVS Sarma
 

If you could have a 20m  band pass filter before antenna signal reaches the first mixer, It is very likely you get those two station on uBitx too.
 All the best
sarma
vu3zmv


On Mon, Sep 24, 2018 at 6:42 PM KM4TRT via Groups.Io <garello=aol.com@groups.io> wrote:
I have a carolina windom 80 antenna about 25 ft up, and whether I'm on the uBit x or the Icom 7300 I get about the same reception.   In the morning 20 meters is good, and after it dwindles , 40 meters stays.  At night 80 meters is hopping.
havn't spent much time on 10 yet.  But you're right Jack, when 20 meters is "dead", if I look on the ICOM, i almost always find a couple of stations.  I think its worth having the uBit x just to have the 80-40-20 option. and it's a great receiver.
Andy


Re: Bitx40 vs. uBitx

KM4TRT
 

I have a carolina windom 80 antenna about 25 ft up, and whether I'm on the uBit x or the Icom 7300 I get about the same reception.   In the morning 20 meters is good, and after it dwindles , 40 meters stays.  At night 80 meters is hopping.
havn't spent much time on 10 yet.  But you're right Jack, when 20 meters is "dead", if I look on the ICOM, i almost always find a couple of stations.  I think its worth having the uBit x just to have the 80-40-20 option. and it's a great receiver.
Andy


Re: No Signal on uBit-x #ubitx-help

KM4TRT
 

Hi Joe,
Yes I also have the CEC firmware.  So this sounds like a better option than hunting and pecking with the calibratiion as I have nothing stored.
Andy KM4TRT


Re: No Signal on uBit-x #ubitx-help

KM4TRT
 

Hi Allison,
OK, I think the rust is starting to come off now.  So if I inadvertantly shifted the input frequency to the filter with the cal control, say 10K (instead of the 100 that I was looking for) then the 
signal will no longer go through the passband.  SO  whats the procedure for getting it back?
I think that the scope reading was over 45 MHZ, so I'll just adjust the calibration until I see it moving down,
Then I can find it with a dummy load and my IC7300 display.
What part of the circuit is the Cal from the Arduino actually shifting? 
Thanks
Andy


Re: Fw: Re: [BITX20] BCI Filter

Tom, wb6b
 

On Sun, Sep 23, 2018 at 07:38 PM, Jack Purdum wrote:
SoftwareControlledHamRadio groups.io Group
Looks like an interesting group. 


Re: uBITX EXPLOR-AIR Retro Radio

 

Looks great!

 

David A Posthuma, WD8PUO

1 (616) 283-7703

 

From: BITX20@groups.io <BITX20@groups.io> On Behalf Of abeckett@...
Sent: Sunday, September 23, 2018 11:14 PM
To: BITX20@groups.io
Subject: [BITX20] uBITX EXPLOR-AIR Retro Radio

 

uBITX V3 built to resemble Lafayette KT-135 EXPLOR-AIR regenerative receiver.  Brings back the memories of the good old days of radio.  If interested, it is for sale.


Re: Ubitx evolving fixes updated to wiki? #ubitx #ubitx-help

Tom, wb6b
 

On Sun, Sep 23, 2018 at 01:41 PM, Vince Vielhaber wrote:
found a Low Pass Filter board out of a TS-940 Kenwood on ebay for $20.
This is a cool idea. I looked at some on eBay, judging from the pictures it looks like they are only an order 5 filter. Anyone know if these would be good enough as the only filters for the uBITX (bypassing the filters in the uBITX)? If used as an additional filter set after the inboard uBITX filter, likely any additional harmonic reduction these provide would bring the harmonics into spec (we should hope). 

Tom, wb6b


uBITX EXPLOR-AIR Retro Radio

abeckett@...
 

uBITX V3 built to resemble Lafayette KT-135 EXPLOR-AIR regenerative receiver.  Brings back the memories of the good old days of radio.  If interested, it is for sale.


Fw: Re: [BITX20] BCI Filter

Jack, W8TEE
 

Opps...pressed the wrong key. Source listed below:

----- Forwarded Message -----

From: Jack Purdum <jjpurdum@...>
To: "BITX20@groups.io" <BITX20@groups.io>
Sent: Sunday, September 23, 2018, 10:36:21 PM EDT
Subject: Re: [BITX20] BCI Filter

A similar filter is discussed on the SoftwareControlledHamRadio groups.io Group


site. Just do a  search on "BCI filter". It cost me under a dollar to build but works very well. A "high power" version of the filter appeared in:

A Cheap and Easy BCI Filter”, CQ Magazine, August, 2016.


Jack, W8TEE


On Sunday, September 23, 2018, 6:37:43 PM EDT, Nick VK4PP <nickpullen@...> wrote:


Hi. 
Peter VK3YE did a video using some normal inductors to make a BCI filter.
https://www.youtube.com/watch?v=fgQenFJOjr4

73 Nick VK4PP


Re: No Signal on uBit-x #ubitx-help

Joe Puma
 

Did you try doing a factory reset on the firmware? I use the CEC firmware and if you push the tuner knob in and turn on radio you’ll get the option to reset firmware by following on screen prompts. 

Joe


On Sep 23, 2018, at 6:41 PM, KM4TRT via Groups.Io <garello@...> wrote:

Thanks for the reply.
  I realize that if nothing is going into the 2nd amp that nothing will come out.'I only said that because I have had experience where I could not find a signal at
some places because of  lead antennuation,
but was able to pick it  up further downstream in a less sensitive spot,.
To reiterate, I have the signal going into the 45 Mhz xtal but nothing reasonable coming out.  I should be getting the filtered 45Mhz signal going into the second mixer, right?
I did not change anything in the coil/cap structure, I only changed cal on the screen. (gui)
PS i was literally watching my signal disappear on the ICom waterfall display before I realized that my dummy load wasnt connected.
Andy


Re: BCI Filter

Jack, W8TEE
 

On Sunday, September 23, 2018, 6:37:43 PM EDT, Nick VK4PP <nickpullen@...> wrote:


Hi. 
Peter VK3YE did a video using some normal inductors to make a BCI filter.
https://www.youtube.com/watch?v=fgQenFJOjr4

73 Nick VK4PP