Date   
Re: UBitx v5 (CEC v 1.2) Tunig Clicks

jsternmd
 

Where does the click sound originate?  Its not audio, is it one of the relay?

Re: Relay pin needed? #ubitx-help

 

Solder on PIN 8 on KT1 looks shorted to ground. here is a freshly desoldered pic for you! / Raj

Emacs!


At 15-07-19, you wrote:
hey bitx'ers I was doing the Relay replacement and on KT1 relay, I had an issue with PCB pad, and not 100% sure on the solder making it to the top side. I did some tracing and I cannot find a joining trace/pad for this pin (circled in red & burnt on e on other pic).. Is it a major issue if that pin is not soldered? Or do I need to try to make best repair to connect it. Only way it traces is to other side of Relay, but nothing else on the board it connects to and the schematic is confusing for my limited schematic reading skills.

V4 board by the way. The rest of relays were fine, just KT1 was the problem!

[] []   Content-Id: <attach_0_15B176D34667D69E_5589@groups.io>
X-Attachment-Id: attach_0_15B176D34667D69E_5589@groups.io
Content-Type: image/png; name="relay.png"
Content-Disposition: inline; filename="relay.png"

Content-Id: <attach_1_15B176D3469D3478_5589@groups.io>
X-Attachment-Id: attach_1_15B176D3469D3478_5589@groups.io
Content-Type: image/png; name="2019-07-14 20_21_55-Photo - Google Photos.png"
Content-Disposition: inline; filename="2019-07-14 20_21_55-Photo - Google Photos.png"

Re: UBitx v5 (CEC v 1.2) Tunig Clicks

Dennis Yancey
 

Many folks change out the encoder to one that doesn't have clicks. This is what I prefer, to each his own.  Here is an example of what I am using. You will have to get a 5v line to it but other than that, it works seamlessly. These are available lots of other places. You can also buy the original style encoder from an Electronics house with or without the clicks.. 


https://www.ebay.com/itm/2Pcs-KY-040-Rotary-Encoder-Module-for-Arduino-AVR-PIC-Board-Hot/382553258460?epid=22023230682&hash=item5911f379dc:g:XswAAOSwA5tbh5vv
--
72 and God bless
KD4EPG

Re: Antuino - the antenna analyzer

Ashhar Farhan
 

Not yet. in a different thread, i have posted some changes in component values, I am waiting for those to be confirmed before we ship.

- f

On Mon, Jul 15, 2019 at 11:20 AM Kevin Luxford <kbgluxford@...> wrote:
No price or sale information on HFSignals website. I take it that that the antuino is not yet on sale?
vy 73
Kevin VK3DAP / ZL2DAP

Re: Antuino - the antenna analyzer

Kevin Luxford
 

No price or sale information on HFSignals website. I take it that that the antuino is not yet on sale?
vy 73
Kevin VK3DAP / ZL2DAP

Re: Relay pin needed? #ubitx-help

MVS Sarma
 

BTW, what is the version please?
Sarma vu3zmv

On Mon, 15 Jul 2019, 10:16 am Mvs Sarma, <mvssarma@...> wrote:
Please check relavent sch ,Chris. I suppose rhe relY pin is expected to go to a coil's pin. Of so botht relatag and coil pon are on same side. Perhaps you can have a simple short jumper, right !
On Mon, 15 Jul 2019, 8:56 am Chris [N7CCX], <chriscoel@...> wrote:
hey bitx'ers I was doing the Relay replacement and on KT1 relay, I had an issue with PCB pad, and not 100% sure on the solder making it to the top side. I did some tracing and I cannot find a joining trace/pad for this pin (circled in red & burnt on e on other pic).. Is it a major issue if that pin is not soldered? Or do I need to try to make best repair to connect it. Only way it traces is to other side of Relay, but nothing else on the board it connects to and the schematic is confusing for my limited schematic reading skills.

V4 board by the way. The rest of relays were fine, just KT1 was the problem!

Re: Relay pin needed? #ubitx-help

MVS Sarma
 

Please check relavent sch ,Chris. I suppose rhe relY pin is expected to go to a coil's pin. Of so botht relatag and coil pon are on same side. Perhaps you can have a simple short jumper, right !

On Mon, 15 Jul 2019, 8:56 am Chris [N7CCX], <chriscoel@...> wrote:
hey bitx'ers I was doing the Relay replacement and on KT1 relay, I had an issue with PCB pad, and not 100% sure on the solder making it to the top side. I did some tracing and I cannot find a joining trace/pad for this pin (circled in red & burnt on e on other pic).. Is it a major issue if that pin is not soldered? Or do I need to try to make best repair to connect it. Only way it traces is to other side of Relay, but nothing else on the board it connects to and the schematic is confusing for my limited schematic reading skills.

V4 board by the way. The rest of relays were fine, just KT1 was the problem!

Re: Antuino 2.0

Ashhar Farhan
 

Rob,
we had to change the clock to 27 MHz (probably, i didnt edit the schematic properly) as the IF of Antuino is itself at 25 Mhz and the clock crystal would have created a spur right in the middle of the passband. The early Antuino had a 16x2 text LCD display, just 80 of them were made as a workshop project for our club's annual convention. After that, I felt it necessary to add graphics display. I chose a 128x64 LCD display as it provides good readability in the field (it is quite sunny most of the time here), The TFT displays didnt work too well and they drew a lot of current too. The existing Antuino draws about 60 ma when powered up. That will make it last a very long time from a set of six AA dry cells (At 1000 mA-hour rating, it means, that they can be operated for 16 hours continuously before the battery runs out).
73, f

On Mon, Jul 15, 2019 at 2:21 AM Rob Bleumer <Bleumer@...> wrote:
Hi All,
I was comparing the version 1.0 and 2.0 of the Antuino.
Probabely i missed something. I see the schematics and I see the clock crystal of the SI5351  being in version 1.0 25MHz. and in the version 2.0  27MHz.
So there must be also something different in the SI 5351.ino file or so I think for the calibration. I'm not a programmer, but try to understand the schematics and program before building.
Rob PA0RBL

Relay pin needed? #ubitx-help

Chris [N7CCX]
 

hey bitx'ers I was doing the Relay replacement and on KT1 relay, I had an issue with PCB pad, and not 100% sure on the solder making it to the top side. I did some tracing and I cannot find a joining trace/pad for this pin (circled in red & burnt on e on other pic).. Is it a major issue if that pin is not soldered? Or do I need to try to make best repair to connect it. Only way it traces is to other side of Relay, but nothing else on the board it connects to and the schematic is confusing for my limited schematic reading skills.

V4 board by the way. The rest of relays were fine, just KT1 was the problem!

Re: UBitx v5 (CEC v 1.2) Tunig Clicks

MVS Sarma
 

With ANT connected and volume at nominal level you maynot feel the encoder clicks, I suppose.

Sarma vu3zmv

On Mon, 15 Jul 2019, 3:14 am jsternmd, <jsternmd@...> wrote:
Tuning VFO causes a soft click with every step (regardless of step size).   It is exactly same regardless of Volume setting and sounds like a relay click.   In fact it sounds exactly the same as the PTT 'release' click, that is the relay click going from TX back to RX.

Is this normal?  So far my UBitx appears to be working OK,

Jerry

UBitx v5 (CEC v 1.2) Tunig Clicks

jsternmd
 

Tuning VFO causes a soft click with every step (regardless of step size).   It is exactly same regardless of Volume setting and sounds like a relay click.   In fact it sounds exactly the same as the PTT 'release' click, that is the relay click going from TX back to RX.

Is this normal?  So far my UBitx appears to be working OK,

Jerry

Re: Antuino 2.0

Rob Bleumer
 

Hi All,
I was comparing the version 1.0 and 2.0 of the Antuino.
Probabely i missed something. I see the schematics and I see the clock crystal of the SI5351  being in version 1.0 25MHz. and in the version 2.0  27MHz.
So there must be also something different in the SI 5351.ino file or so I think for the calibration. I'm not a programmer, but try to understand the schematics and program before building.
Rob PA0RBL

Re: question about current after building the DC connector

Edward Reynolds
 

👍


On Jul 14, 2019, at 12:03 PM, nomadg360@... wrote:

Thanks Ed, I assume that is the small pot (blue in my case) on the back of the board.

Re: question about current after building the DC connector

nomadg360@...
 

Thanks Ed, I assume that is the small pot (blue in my case) on the back of the board.

Re: Antuino 2.0

Bruce Hall
 

This is great news.  Thank you!

Bruce.

On Sun, Jul 14, 2019 at 2:08 AM Ashhar Farhan <farhanbox@...> wrote:
Josh,
the non-linearity, is primarily due to the first IF amp (between the diode mixer and the crystal filter) running out of steam. Change the R18 to 51 ohms (or just solder a 100 ohms across the existing 100 ohms resistor). That should bring up the linearity quite a bit. I notice a 10 db increase. I am collating a few tweaks of changing resistor values to get better linearity. I will post them in a day when I confirm that it works with a few more boards.

- f 

On Sun, Jul 14, 2019 at 1:23 AM <WoodJRx@...> wrote:
Still working on the code, but I was able to borrow a 72db step attenuator from a fellow ham.  With Bruce Hall's (bhall66)'s improved code, my Antuino is showing pretty good linearity (in my opinion).  I'm pretty sure I'm having more issues with the attenuator (as it is a slide switch design) providing consistent attenuation than issues with the Antuino.

Linearity.png

Still tinkering...

~Josh
W0ODJ

Re: question about current after building the DC connector

Edward Reynolds
 

On the back of display there is a contrast adjustment it might need a tweak.
Ed


On Jul 13, 2019, at 5:28 PM, nomadg360@... wrote:

Thanks everyone for your responses. I went ahead and put together the various parts and connected them up. When I did that and turned on the power, it looked like everything was working. That is, the display lights up and there are values in the display fields. I played with the turner and the frequency displayed changed.

 

I am not sure what I did wrong, but in the process of doing the other steps, I "fixed" something :) I suspect I had a wire wrong I had to make a couple of changes when I went back and reviewed each. step and did continuity checks on the wiring that I did.

Thanks again. Now I need to figure out how to do the initial testing and how to change the color on the display so I can see the writing, that yellow is hard on the eyes .....

Re: Antuino 2.0

Ashhar Farhan
 

Josh,
the non-linearity, is primarily due to the first IF amp (between the diode mixer and the crystal filter) running out of steam. Change the R18 to 51 ohms (or just solder a 100 ohms across the existing 100 ohms resistor). That should bring up the linearity quite a bit. I notice a 10 db increase. I am collating a few tweaks of changing resistor values to get better linearity. I will post them in a day when I confirm that it works with a few more boards.

- f 

On Sun, Jul 14, 2019 at 1:23 AM <WoodJRx@...> wrote:
Still working on the code, but I was able to borrow a 72db step attenuator from a fellow ham.  With Bruce Hall's (bhall66)'s improved code, my Antuino is showing pretty good linearity (in my opinion).  I'm pretty sure I'm having more issues with the attenuator (as it is a slide switch design) providing consistent attenuation than issues with the Antuino.

Linearity.png

Still tinkering...

~Josh
W0ODJ

Re: RX BCI filters

RICHARD
 

Yeah!! More power who cares about the rest of the spectrum

K6KWQ

 

Sent from Mail for Windows 10

 


From: BITX20@groups.io <BITX20@groups.io> on behalf of Curt via Groups.Io <wb8yyy@...>
Sent: Saturday, July 13, 2019 7:08:44 PM
To: BITX20@groups.io
Subject: Re: [BITX20] RX BCI filters
 
Interesting for those close to big medium wave transmitters. But it seems to me there is a larger market to kit something to remedy v3 and v4 ubitx transmit spurious. What am I missing in our greater interest in only improving what we hear?

Curt

Re: RX BCI filters

 

Check this kit out...it’s what I am currently building for my version 4...go to https://www.ebay.com/itm/KIT-Universal-Bandpass-Filters-for-HF-Transceivers-BPF-6-6-bands-12V/172672735615?hash=item283418d97f:g:VtYAAOSwXj5aon5k

David Posthuma, WD8PUO

 


From: bitx20@groups.io on behalf of N8DAH <dherron@...>
Sent: Saturday, July 13, 2019 10:19 PM
To: bitx20@groups.io
Subject: Re: [BITX20] RX BCI filters
 

Curt,

 As much I would like to make a spurs/harmonics kit I can only make products for which I have equipment to test. If I was to make a kit for the spurs and harmonics I would be doing so on blind faith of others work. Maybe once I can afford the equipment I can make a kit for it but until then I do what I can.

Re: RX BCI filters

 

Curt,

 As much I would like to make a spurs/harmonics kit I can only make products for which I have equipment to test. If I was to make a kit for the spurs and harmonics I would be doing so on blind faith of others work. Maybe once I can afford the equipment I can make a kit for it but until then I do what I can.
--
David

 N8DAH
Kit-Projects.com

Shop is open!