Re: A steal for Arduino Experimenters
Try this. You might like the actual book better anyway.
?Getting Started with Arduino,?available at?,?, and?.
I ordered and received the Basic Starter Kit from Bangood.? The kit, however, has no 'help' manual but a later post included a web address from Bangood to send for the free PDF starter guide.? That link did not work.? I wrote Bangood and, after two requests, received a 75mb zipped file.? I tried to unzip it and was given the message that the file couldn't be unzipped as it was corrupted.
Several requests to Bangood to send re-send the file have fallen on deaf ears.
So......has anyone received the PDF that could forward me a copy?? It would be greatly appreciated as this nubee needs all the help he can get in experimenting with the Arduino.?
Thanks,
Keith AG?H
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Re: Can't get my uBitX to transmit CW on the Dial frequency
Well, there's definitely and issue there... Now I could get my uBitX to Transmit on the exact Dial freq changing those lines in the code.
but... The CW RX BFO isn't getting recalled or applied or something, I mean I can get it to zero beat when adjusting it in the menu but somewhat it just revert back to where it was before when I press the PTT to save it no matter what I do. the "number" setting remains 11.997.xxx... or whatever but it just doesn't do anything to the actual CW RX freq on CW modes just when I press the PTT to save the freq shifts to where it was before, no change there on RX...
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You must have a reasonable grasp of English (and Arduino C) to have got this far - I'd suggest read it all again, and be accurate in your communications (both here and to the rig!).
73
Dex ZL2DEX
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Re: uBITX physical comm port - newbie question
Nice.? What tool did you use to cut the hole to mount it to the box?
Thanks!
Mike
KK7ER
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Re: RF power chain mods and improvements..
Allison
Am I correct in that all of the following amateur bands are
affected?
18.068 - 18.168 MHz
21.000 - 21.450 MHz
24.89 - 24.99 MHz
Something around 26-27 MHz (varies by region)
28.000 - 30.000 MHz
The bands from 18MHz - 21.450MHz at least will have the offending
spur stripped out in the LPFs after the finals.?? I agree that
amplifying these spurs is not ideal and adds to the problem of
drive...? I speculate that this is why there may be a low in power
output around these frequencies??
However, the spurs generated at 26MHz and above won't be stripped
out by the finals LPF at all, nor by the BPF (actually an LPF)
built for RX as these all fall below the desired signal
frequency.? This makes it likely that 28MHz is non-compliant with
at least US emission standards.
At a minimum, an HPF needs to be switched in for 24MHz and above
in series with the RX LPF.
It may be that two filters could be substituted for the RX filter
with a single digital line controlling the switch over:
Below 22.5 MHz, a LPF cuts in with a threshold just above 22.5
MHz, killing off all the unwanted mixer products.
Above 22.5 MHz, a HPF cuts in with a threshold just below 22.5MHz,
again killing off all the unwanted mixer products.
On Rx the exiting LPF is inserted.?? No new data line is required
to switch the RX LPF in/out.? This can be controlled by the TX
line.
Inserting new filters in the TX line would require a couple of
cuts on the board either side of the existing RX 33MHz LPF filter.
Overall then - 2 relays, and 2 filters (1 LPF and 1 HPF) to solve
the problem.
What do you think?
Mike ZL1AXG
On 3/06/18 1:28 PM, ajparent1/KB1GMX wrote:
Yes its a
significant issue.? ?When tuning the 28 to 29 mhz range the spur
falls in the
upper aeromobile and HF marine band.??
Allison
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Re: Can't get my uBitX to transmit CW on the Dial frequency
Thanks for your reply Tom!
Been fiddling a bit more with the issue and my solution(?) was to edit the ubitx20.ino lines 504 and 508 and deleted the "+sidetone" and "-sidetone" and then proceeded to adjust the "CW RX freq" on the menu until perfect 800hz on zero beat.
That seems to fix the issue but I'm hoping to hear from Ian or someone with more experience since honestly I just understand like half of the .ino code there Hehe. dunno if I'm messing something else.
73, Dan
Hk4DEI
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Jack
The nextion displays have a built in processor on the driver
card.? This is configurable with a supplied Windows client.
Essentially the nextion talks to the raduino with serial commands
sending "meta commands".? E.g. I am now on 3.512.245 MHz.??? Or in
the other direction, "LSB selected".?? In codes of course!
This provides complete independence between the display software
and the hardware control of the rig.?? People can come up with
their on UX for the display independent of a standardised protocol
being developed to interface with the CEC firmware.
Makes a whole lot of sense to me!
Mike ZL1AXG ubitx.net
On 3/06/18 2:12 PM, Jack Purdum via Groups.Io wrote:
I see a lot of post about the Nextion display. What
advantages does the if have over the mcufriend displays?
Jack, W8TEE
On Saturday, June 2, 2018, 4:30:23 PM EDT, Allen
Merrell via Groups.Io <kn4ud@...>
wrote:
I have a 3.2 ordered and waiting for it to arrive.
I am using the 1.08CEC firmware from Dr. Ian and like
it a lot. I am adding 8 switches to it. I know the
manager has options for 6 but I am adding one for FKEY
and momentary toggle for PTT. I would appreciate any
information I can get on the Nextion Display. I
downloaded the software on the Nextion site but have
not loaded it yet to check it out. Thanks Dr Ian for
all your great work.
73's kn4ud
kn4ud@...
--
Allen ?Merrell
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Re: Can't get my uBitX to transmit CW on the Dial frequency
Yes, this is extremely confusing. The transmit frequency is offset by the amount of the sidetone setting. The software gives you no indication of this offset. ?The simplest solution would be for the display to change to the transmit frequency when CW is key down, and the "CW" mode is displayed. At least you would know what is happening.? In the CEC firmware, using the manager program, you can check the "Enable Adjust CW Frequency" checkbox and the transmit frequency will be displayed instead of the receive frequency. Here is a similar thread:? /g/BITX20/message/50224Tom, wb6b
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Re: boosting the power on 28 MHz
#ubitx
Allison, In digging through my junk box I found a package of 2n5179's. Would those work for Q911/Q912 in your estimation? Or is the 300mw dissipation too low for use in that area? They have an ft of 900Mhz to 2Ghz which should be more than sufficient. tim ab0wr On Sat, 02 Jun 2018 18:26:16 -0700 "ajparent1/KB1GMX" <kb1gmx@...> wrote: Essentially the same The 2n2222a has a few minor spec notes but they
are the same so long as its the TO18 metal part.? Do not expect
miracles.? there are a lot of other changes that go with that.
Also do Farhan's Q90 mod.
Allison
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Can't get my uBitX to transmit CW on the Dial frequency
Hi All,
I've been puzzled by this for a while now...
Why my uBitX doesn't transmit CW on the frequency on the dial?
I'm using Ian's CEC Firmware V1.08.
On TX the dial frequency is offset by the amount set in the "CW Tone" menu setting, so I'm really transmitting on the Dial freq. + or - the CW sidetone setting, depending on the mode (CWL or CWU) I understand that is the audio frequency of the sidetone and the audio frequency of a CW signal perfectly at Zero beat, so we need to RECEIVE a few Hz up or down to be able to hear anything on CW but I don't get why it's not transmitting on the dial frequency?
Shouldn't all these settings affect just the sidetone and the CW receiving freq? Why is it offsetting the TX freq by that amount of the sidetone? is it a bug?
What am I missing here?
Thanks
Dan.
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Re: uBITX physical comm port - newbie question
 UBITX - USB cable installed in a Hammond box with connector in the rear panel. ?This is a 12¡± Cable -Amazon
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On Jun 2, 2018, at 12:02 PM, Tom Francis < ubitx@...> wrote:
Thanks for the quick reply - I really appreciate it.
I do some QRP building and experiment a little, but I've never
gotten into the micro
controller scene much at all other than reading up on it.? 50 some
years of playing
radio I'm still something of a Luddite.
I will do what you suggest - looks like fun.
Thanks again.
Best regards,
Tom, W1TEF
On 6/2/2018 1:55 PM, Ralph Mowery
wrote:
Before playing too much with it, you can get just
the Arduino processor and play with it.? They are only about $
2.50 from China off ebay if you don't mind waiting 3 or so
weeks.? This is what I bought a while back to do some playing.?
There are 5 of them for about $ 12, but you can find single lots
of them.
Notice the silver thing on the left.? That is the USB
connector you are looking for.? They can be powered by just
the usb connector plugged into the computer if you just want
to play with the programming of them.? Same with the ubitx.?
The display will light up and you can program it through
that connector, but the rest of the ubitx will not be
powered.??
de ku4pt.
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Here¡¯s 20 meter FT8 tonight in Plano TX.? Don¡¯t think the band is dead. Mike K5ESS ? 
?
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From: [email protected] [mailto:[email protected]] On Behalf Of Lee
Sent: Saturday, June 2, 2018 8:44 PM
To: [email protected]
Subject: Re: [BITX20] Transmitter Mods ? I guessed that installing the mod would not affect only 1 band but I thought maybe I bumped something else.? As you suggested I'll wait a few days to see if the band wakes up.
--
Lee - N9LO? "I Void Warranties" ?
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I see a lot of post about the Nextion display. What advantages does the if have over the mcufriend displays?
Jack, W8TEE
On Saturday, June 2, 2018, 4:30:23 PM EDT, Allen Merrell via Groups.Io <kn4ud@...> wrote:
I have a 3.2 ordered and waiting for it to arrive. I am using the 1.08CEC firmware from Dr. Ian and like it a lot. I am adding 8 switches to it. I know the manager has options for 6 but I am adding one for FKEY and momentary toggle for PTT. I would appreciate any information I can get on the Nextion Display. I downloaded the software on the Nextion site but have not loaded it yet to check it out. Thanks Dr Ian for all your great work.
73's kn4ud
kn4ud@...
--
Allen ?Merrell
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 I only wired this 10 wrong ways until I figured it out. ?Sunil said he was working on a book of instructions to go with his cases. Al
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On Jun 2, 2018, at 9:40 PM, hotrod541@... wrote: First let me thank all who responded to last post, your ideas were a great help putting my uBITX together. I now am at the point where I have no idea how to proceed. I am using a case from Sunils and it really is looking great. ?Shipped were a number of boards that help with the assembled case. ?There is a board for ?USB, D-9, and two other plugs at the rear of the case. ?There is no paperwork to explain this board. ?I have checked the Internet with no luck. ?I would like to hook up but have no idea where to get the connections from. ?Any help would be of great help. Thanks
Buddy3223
KJ4ZSI
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Re: Instruction Manual needs revision
#ubitx
Jon, Your manual is well written and easy to follow. If setting the calibration and the bfo interact, you may need to add a note in the manual that repeating the setup again may be needed because of the interaction. Because of the various software out there I'm not sure which loads might require this and which might not. I would also put in a note that after power is applied to the ubitx you should probably wait a few minutes (ten maybe?) for everything to temperature stabilize. The crystal for the SI5351 will change frequency slightly as the ambient temperature changes in the case. tim ab0wr On Sat, 02 Jun 2018 13:41:24 -0700 tituskz1g@... wrote: I have attached my first pass at the "MBITX TUNEUP" instruction, and
welcome your comments.? I have aimed for ease of understanding,
particularly for newcomers to our interesting hobby. -- Jon Titus,
KZ1G Herriman, UT USA
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I worked out the wiring for the usb. ?Had a mini usb that I cut about 12 inches and wired to the usb back socket. ?I did that so I could use FT8 and other digital modes. ?I have a picture Buddy that I will try to find. ?The wire color is a standard I understand. ?I will try to post it here tomorrow. Al
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On Jun 2, 2018, at 9:40 PM, hotrod541@... wrote: First let me thank all who responded to last post, your ideas were a great help putting my uBITX together. I now am at the point where I have no idea how to proceed. I am using a case from Sunils and it really is looking great. ?Shipped were a number of boards that help with the assembled case. ?There is a board for ?USB, D-9, and two other plugs at the rear of the case. ?There is no paperwork to explain this board. ?I have checked the Internet with no luck. ?I would like to hook up but have no idea where to get the connections from. ?Any help would be of great help. Thanks
Buddy3223
KJ4ZSI
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I guessed that installing the mod would not affect only 1 band but I thought maybe I bumped something else.? As you suggested I'll wait a few days to see if the band wakes up. -- Lee - N9LO? "I Void Warranties"
?
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First let me thank all who responded to last post, your ideas were a great help putting my uBITX together. I now am at the point where I have no idea how to proceed. I am using a case from Sunils and it really is looking great. ?Shipped were a number of boards that help with the assembled case. ?There is a board for ?USB, D-9, and two other plugs at the rear of the case. ?There is no paperwork to explain this board. ?I have checked the Internet with no luck. ?I would like to hook up but have no idea where to get the connections from. ?Any help would be of great help. Thanks
Buddy3223
KJ4ZSI
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Have you thought about lowering the audio signal you have feeding the ubitx? I know I can vary the output power a lot with my two-tone generator by just cranking the amplitude pot on the generator up and down. tim ab0wr On Sat, 02 Jun 2018 08:34:42 -0700 "Dennis" <dennis@...> wrote: I have been operating FT8 with the uBITX and in some situations would
like to use it to drive my linear. Problem is that It puts out more
power than I want going into the linear. On 20m last night I fired up
the linear and was putting out 100 watts. Way more than I need for
this mode so I immediately went back to barefoot. The linear has only
High and Low settings (I was using low of course). Is there a simple
way to vary (lower) the output power? A new knob on the front panel
would be ideal. HI
?
73, Dennis
W7DRW
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Lee