Date   
Re: ND6T AGC implementation for uBIT-X

Kees T
 

Robert,

I responded to your note....let me dig it out and send it again (offline).

73 Kees K5BCQ

-------------------------------------------------------------------------------------------------
Others,

Yes, there seems to be much interest and I'm looking forward to it .....I think.

Don and Ion are quite pleased too. 

I won't "push the button" until May 2nd since they are on "Labour Day Holiday" through May 1st. That will allow me to check for errors and read your comments.

73 Kees K5BCQ

Nano Capability with 2.8" TFT Displays

Kees T
 

The subjects are too difficult to sort so I'll start another thread. 

There are really nice serial interface 2.8" TFTs with touchscreens out there for pretty low prices ($8-$9). I would like to know just what you can do with an existing Nano or a Protoneer (much faster and way more storage). Seems like we have enough pins coming off the existing controller to support an SPI (4 pins). May need a small board between the existing Raduino  and the TFT (level shifters, etc). What functions could you support with firmware ? In other words what capabilities could be added if you don't worry about DSP, FFTs, etc. and other microcontroller intensive stuff. 

Keep it simple and minimal..... starting with the existing uBITX and a 2.8" TFT with a SPI interface. What would you suggest ?

73 Kees K5BCQ

Calibration - my approach #ubitx

David Beal
 



Hi all, 

Calibration has been challenging for me.
In case the below will be helpful, here is the procedure that has ultimately worked well for me.

Thanks to Ian Lee (KD8CEC) for his nice firmware and uBITX_manager utility, and to others who pointed me in the right direction on a different thread.
Step 1: Downoad: http://www.hamskey.com/2018/04/ubitx-firmware-cec-version-1073-beta.html Within the Zip file you'll find a file name UBITX_CEC_V1.073_16P.hex (This is the file you'll need with the standard display that ships with the board) - extract that out; you'll use it in Step 2. Step 2: You need to update your factory radio to Ian's firmware which is accompanied by a nice UI to load the parameters easily from uBITX_Manager utility. Follow the instructions here (using xloader): http://www.hamskey.com/2018/01/how-to-upgrade-ubitx-firmware.html but ultimately pointing to the firmware that is referenced in Step 1 above. Step 3: Download and install the file here: https://github.com/phdlee/ubitx/releases/download/v1.073/uBITX_Manager_1.04.zip Note - when you run uBITX_Manager; the uart speed is 38400 and not the 57600 used by xloader. Step 4: Connect uBITX_Manager to the radio "Read from uBITX" Press "Decode =>" "Load from file" using the .btx file that I attached as screen images and text file. These are my final numbers and they will get you close. My factory-fresh calibration values seemed to be out and it was very difficult for me to bring them to something that is "sane" simply by ear. Press "<=Encode" Press "Write to uBITX" - click through the next couple of dialogs Press "Rest" (Reset)) - your radio is now running with the new firmware and my calibration figures. It should start to sound right. Step 5: See this post: https://groups.io/g/BITX20/message/47482 for the 7074 LSB/USB "trick". With the attached file for my radio, the BFO calibration should be "close enough" so the calibration function accessible via the radio's menu will work ok now. Then, I adjusted the BFO frequency for the best unwanted sideband suppression. Step 6 Now that the BFO is set properly, I then calibrated the main frequency by setting CW frequency (in uBITX_Manager) to 700 Hz which is the same as my commercial rig CW sidetone. I also ensured that the commercial rig was receiving CW on the same sideband as the uBITX ( lower sideband "CWL" for 40m ). I then tweaked the main calibration setting until the CW note of the received signal was the same on the commercial rig and on the uBITX. I used an antenna switch to flip back and forth.

Step 7
Fine-tune the BFO setting by using the 7074 "trick" and the radio's BFO calibration setup menu item.


Good luck!
Dave
AE6RQ



--
Dave Beal
AE6RQ

Re: ND6T AGC implementation for uBIT-X

Robert Ogburn
 

For planning, put me down for four (4) of each.  
OBTW-  Sent this a bit back, no reply...
"<ARS.N5LXK@...>
To:k5bcq@...

 
Apr 27 at 4:21 PM
 
Hi Keys, its been a while- Retired to the Texas High Plains.  Wish we were closer to "civilization" now and then (not too often).
It seems to be time to add to my backlog of projects, so......
 
If you would be so kind, please advise landed price and availability to ZIP 79511 for the following-
 
The Attenuator Kit #13  2EA  (slide switch type)
 
AQRP Vector Impedance Analyzer kit (CURRENT VERSION) W/OPTION #2 (programmed)
 
Much obliged-
Robert N5LXK
73

Re: ND6T AGC implementation for uBIT-X

RCBoatGuy
 

I'd already replied that I would like 3 of the SMT AGC kits/boards when they're available.  But I'd like to add 3 of the click boards/kits to that as well.

73,

Carl, K0MWC 

Re: Please don't make Radiuno with CH340/CH341 chipsets any more! Or at least advertise that you do use them! #radiuno

Tom, wb6b
 

Hi,

I just received a pack of 10 cheap Arduino Nano boards from Amazon today. After reading these posts I was concerned I was going to have issues with uploading programs to them with my Mac. 

It turns out I already had a driver for the CH340 installed. It is signed and works. 

This driver was installed some time ago, so I don't remember the details. However, I went back and checked the Plist file for the driver and I believe the link below is the driver I have installed.

Plist of my driver is located here (from terminal):
view /Library/Extensions/usbserial.kext/Contents/Info.plist


Here is the link: https://github.com/adrianmihalko/ch340g-ch34g-ch34x-mac-os-x-driver

Most likely I installed this driver using the "Homebrew" package installer for the Mac.

-- Tom, wb6b

Re: ND6T AGC implementation for uBIT-X

Ken
 

Thanks Kees.

Believe me I know the postage coming from the U.S. is a killer. And our exchange is another stinger.

I'll  keep my eyes open for your announcement.

73 Ken

On Mon, Apr 30, 2018 at 9:53 PM, Kees T <windy10605@...> wrote:
Ken,

As many as required.

We need to build and test a few when the boards arrive (plenty of volunteers) and then we'll let er' rip. Status will be posted here.
Assuming I can get 100% yield on the shear that's 160 AGC and 320 Click boards initially, more as needed after that. With the DHL shipping I'll have to figure out what the board cost is to me and go from there. You will be surprised, it will be quite low. What drives overall kit prices up is US/DX postage, PayPal fees, and packaging. Quantity is what makes it cheap.

73 Kees K5BCQ 


Re: ND6T AGC implementation for uBIT-X

tony.vasile@...
 

I would gladly buy three of each if possible.

Well done!

Tony, KB9A

On Mon, Apr 30, 2018, 6:58 PM Kees T <windy10605@...> wrote:
OK, here is the status. Attached is the board and schematic info for the AGC Gain Control circuit ND6T designed and RX/TX Click Eliminator circuit VA7AT designed .....I believe that is correct. It always pays to hesitate before pushing the button and it's gone .....and besides they are still celebrating their Labour Day. I'll order with DHL shipping and I should have boards in 7-10 days at my door based on experience.   

Re: ND6T AGC implementation for uBIT-X

Jerry Gaffke
 

Good one Tim!
Yup, that crossover is missing a junction dot on the AGC schematic.

Also, looks like Kees' schematic is following Don's lead by not showing
where the RF gain pot should be.

Good to see so many clamoring for the boards.
I assume there is no list.
But put me down for 3 each anyway.

Jerry, KE7ER


On Mon, Apr 30, 2018 at 06:54 pm, Tim Gorman wrote:
On the schematic shouldn't R1,R2, and C2 all be shown as connected on
the schematic?

Re: Got my Excellway case from China today.

walt hodges
 

Please, post the Amazon link for the panels.

On Mon, Apr 30, 2018 at 8:50 PM, Bill Carpenter <nz0tham@...> wrote:
I have seen the eBay panels and they are great but thought I would try on my own first.


Re: ND6T AGC implementation for uBIT-X

Tim Gorman
 

On the schematic shouldn't R1,R2, and C2 all be shown as connected on
the schematic?

tim ab0wr

On Mon, 30 Apr 2018 15:43:31 -0700
"Kees T" <windy10605@...> wrote:

OK, here is the status. Attached is the board and schematic info for
the AGC Gain Control circuit ND6T designed and RX/TX Click Eliminator
circuit VA7AT designed .....I believe that is correct. It always pays
to hesitate before pushing the button and it's gone .....and besides
they are still celebrating their Labour Day. I'll order with DHL
shipping and I should have boards in 7-10 days at my door based on
experience.

Re: ND6T AGC implementation for uBIT-X

Kees T
 

Ken,

As many as required.

We need to build and test a few when the boards arrive (plenty of volunteers) and then we'll let er' rip. Status will be posted here.
Assuming I can get 100% yield on the shear that's 160 AGC and 320 Click boards initially, more as needed after that. With the DHL shipping I'll have to figure out what the board cost is to me and go from there. You will be surprised, it will be quite low. What drives overall kit prices up is US/DX postage, PayPal fees, and packaging. Quantity is what makes it cheap.

73 Kees K5BCQ 

Re: Got my Excellway case from China today.

Bill Carpenter
 

I have seen the eBay panels and they are great but thought I would try on my own first.

Re: ND6T AGC implementation for uBIT-X

K5ESS
 

I’d like two each when they become available. 

Mike

K5ESS

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Kees T
Sent: Monday, April 30, 2018 5:44 PM
To: BITX20@groups.io
Subject: Re: [BITX20] ND6T AGC implementation for uBIT-X

 

OK, here is the status. Attached is the board and schematic info for the AGC Gain Control circuit ND6T designed and RX/TX Click Eliminator circuit VA7AT designed .....I believe that is correct. It always pays to hesitate before pushing the button and it's gone .....and besides they are still celebrating their Labour Day. I'll order with DHL shipping and I should have boards in 7-10 days at my door based on experience.   

Re: ND6T AGC implementation for uBIT-X

Steve Black
 

If available i'd take two of each. Steve kb1chu


On 04/30/2018 06:48 PM, Kees T wrote:
The AGC board is 1" x 1" and the No Click is 1" x 1/2".

73 Kees K5BCQ

Re: ND6T AGC implementation for uBIT-X

Ken
 

Hi Kees

How many kits do you plan on making availableÉ Both AGC and Click kitsÉ

73

Ken VA3ABN

On Mon, Apr 30, 2018 at 6:48 PM, Kees T <windy10605@...> wrote:
The AGC board is 1" x 1" and the No Click is 1" x 1/2".

73 Kees K5BCQ


Re: ND6T AGC implementation for uBIT-X

Juerg - KK4JW
 

Could you put me down for one of each. , please.

Thanks

73 KK4JW / Juerg

Re: Speech processor and PTT hookup? #ubitx

kj6etl
 

My Friend Bill Meara confirmed this is OK.


Re: #bitx40 - CW Side Tone Wiring #bitx40

Jerry Gaffke
 

My primary suggestion would be that you blindly follow Allard's suggestions.
Many have, with great results.


On Mon, Apr 30, 2018 at 05:00 pm, AGØH wrote:
Thanks for your answer, Jerry.  We'll follow your suggestions.  73, Keith AGØH

 

 

Re: Antenna

Jerry Gaffke
 

I sat through the 8:17 minute April 1 2016 Steve Ellington video on the myantennas EFHW-8010.
Wow, now I remember why I mostly avoid youtube, maybe 10 seconds worth of  information in all of that.
Anyways,he has the matchbox about 5' up in the air, the wire then goes
straight up to 55 feet and then over, and he was planning to rip out his other antenna to make room 
for a second EFHW-8010 so he could swap patterns.  Which is to say that he likes it.
Oh, and on long 80m CW transmit sessions at 500 Watts he sees his SWR creep up suggesting
the transformer was maybe overheating, not an issue on the other bands.  
And he's very fond of LMR-600 coax.

Maybe Simon could give us an executive summary on his other dozen or so videos,
especially the one that's an hour and a quarter long. 
Did Steve E. ever manage to build something he liked better than the EFHW-8010?
What's a good video to start with for somebody wanting to build one from scratch?
Any tidbits not typically found in other material on EFHW's?

Jerry, KE7ER
 


On Mon, Apr 30, 2018 at 04:50 pm, Kelly Jack wrote:
There is a youtube channel by a ham called Steve Ellington that looks at various aspects of the efhw including construction and the myantennas version. Search "EFHW" and the channel came up in a number of the results.