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Re: Seperate group for uBITX ?

 

Seems like a good candidate for a new #ubitx tag. As long as messages are well curated by a moderator, it should be easy to keep things straight.
Seperate group for uBITX ?

 

Do you think we should have a seperate IO group set up for the uBITX project?

Folk talking BITX20 or BITX40 problems could get lost in the fog of the huge expected traffic that will get created when the uBITX gets shipped out and we all start working on them.

Just a thought anyway, don't all leap down at me!


73 Steve

G1KQH
Re: QRPGuys

Jack Purdum
 

72 is an informal version of 73, but for QRP operators.

Jack, W8TEE


From: Arvo KD9HLC via Groups.Io <arvopl@...>
To: [email protected]
Sent: Monday, December 11, 2017 11:20 AM
Subject: Re: [BITX20] QRPGuys

72?? I feel slighted. :-)



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Re: QRPGuys

 

72?? I feel slighted. :-)
Re: Reverse polarity diode circuit

 

Polyfuses are not difficult to find. Several manufacturers, even Littlefuse. I get mine from Jameco (P/N 199938) for 55 cents each (quan. 10).
Mouser and Digikey have them in surface mount, too. Not only good for reverse polarity protection (with diode), but for the occasional short circuit, too. 73, Don,ND6T
Re: Small question about LCD mounting

Jack Purdum
 

Nice!

Jack, W8TEE


From: Michael Babineau <mbabineau.ve3wmb@...>
To: [email protected]
Sent: Monday, December 11, 2017 10:08 AM
Subject: Re: [BITX20] Small question about LCD mounting

I used one of the plastic cases from Bangood and cut the opening for the display with a?
coping saw. I made it just a little bit small for the display. I was then able to enlarge and even it out
using an exacto knife and sandpaper/file so that it was just big enough to friction-fit the display.
I didn't bother to use screws or any sort of glue.?

Michael VE3WMB?



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Re: ubitx - stop press

 

Thanks for your response Ryan!? I wasn't really worried about it; just didn't understand 100% from his post.? It is hackable and I could deal with it here.? I'm really excited about this radio!

-Jeff
KF7RPI
QRPGuys

Ken wa4mnt
 

QRPGuys invites you to visit to see our products and accessories for the qrp community.

72
Re: Reverse polarity diode circuit

Vince Vielhaber
 

I used to be an e-cig dealer. All of my suppliers would send advanced
warnings of the last days to order before the Chinese New Year in order to
get it without the wait. All of our orders came via DHL tho, so China
Post and their version of customs weren't involved. DHL handles that
themselves.

Vince.

I really don't care how they do it, only that it seems to get to me
faster; usually less than a week. I really get nervous about ordering from
China at this time of the year as economic activity there seems to stop
dead in its tracks around the Chinese New Year. I remember waiting 6 weeks
last year for an order.
Jack, W8TEE

From: Vince Vielhaber <vev@...>
To: [email protected]
Sent: Sunday, December 10, 2017 11:40 PM
Subject: Re: [BITX20] Reverse polarity diode circuit

It's also under circuit protection on the left side menu.?? BTW, the
facility in Colorado just receives the completed orders from Thailand,
stuffs them into envelopes, boxes, etc. and ships them out.?? No
inventory is kept there.?? They used to use a facility on the East Coast.

Vince.



On 12/10/2017 11:17 PM, Jack Purdum via Groups.Io wrote:
Yeah, I saw that /after /I ordered them on line. Tayda turns up 0 if you
search polyfuse, which is what I searched for. Search "polyswitch" and
they pop up. I always check them first as they often ship from the
distribution facility in CO. The offer will still stand for anyone who
doesn't need extra stuff on the order.

Jack, W8TEE


------------------------------------------------------------------------
*From:* Vince Vielhaber <vev@...>
*To:* [email protected]
*Sent:* Sunday, December 10, 2017 10:26 PM
*Subject:* Re: [BITX20] Reverse polarity diode circuit


The better news, you can get them all day long from Tayda for 16 cents
each. But they only have 119,418 of them in stock.?? To the US, shipping
from Tayda is only a week for their slow boat shipping. Tayda's minimum
order is $5, so for another $3 and change you can get that replacement
nano!

Vince.



On 12/10/2017 02:48 PM, Jack Purdum via Groups.Io wrote:
All:

The good news: I just ordered a mega-munch of 3A, 30V polyfuses that
I'd
be happy to share for $1, including domestic shipping.
The bad news: They're coming from China, so will likely be several
weeks. I'll make a post here after they've arrived.

Jack, W8TEE


------------------------------------------------------------------------
*From:* Jerry Gaffke via Groups.Io <jgaffke@...
<mailto:[email protected]>>
*To:* [email protected] <mailto:[email protected]>
*Sent:* Sunday, December 10, 2017 2:24 PM
*Subject:* Re: [BITX20] Reverse polarity diode circuit

Yup, a Polyfuse works great.
Can add a resistor and red LED across it as an idiot light so you know
when to?? execute the dope-slap.
(Can also do that for a fuse)

Though Farhan is looking for stuff that's easy to scrounge, doubt a
Polyfuse will make it into the next rev.
A small diode for both reverse protection and overcurrent protection on
the main rig might be the best bet.

Jerry, KE7ER


On Sun, Dec 10, 2017 at 11:16 am, Don Cantrell wrote:

?? ?? My favorite is the Polyfuse.



--
?? Michigan VHF Corp.?? <>
<>
?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ??
<>





--
?? Michigan VHF Corp.?? ??
?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ??







| | Virus-free. www.avast.com |

--
Michigan VHF Corp.

Re: uBITX vs HW-8

 

Heh - yeah, there are better candidates than the HW-8, although the HW-8 is a more attractive size:

I have a dead (parts) HW-32 (not -A). The HW-32 is a terrible radio - problems with VHF oscillation on TX and such that weren't really solved until the HW-32A model. There were several factory 'mods' to address this, including the last one which had a perforated metal cage to fit over the final tubes to finally provide some shielding.

I believe I'll be cleaning it's enclosure up and re-purposing. It's only a little bigger than an HW-8.

I'd think most HW-8's (including dead ones) - if it's not been squashed beneath a truck tire - usually sell upwards of $130+ today.?WithOUT the matching HW-7-1 power supply.?

Mike Y


On Sun, Dec 10, 2017 at 08:59 am, David Wilcox wrote:

There ARE NO dead HW8s, just those that are sleeping waiting for the resurrection. ?
?
Re: Reverse polarity diode circuit

Jack Purdum
 

I really don't care how they do it, only that it seems to get to me faster; usually less than a week. I really get nervous about ordering from China at this time of the year as economic activity there seems to stop dead in its tracks around the Chinese New Year. I remember waiting 6 weeks last year for an order.

Jack, W8TEE


From: Vince Vielhaber <vev@...>
To: [email protected]
Sent: Sunday, December 10, 2017 11:40 PM
Subject: Re: [BITX20] Reverse polarity diode circuit

It's also under circuit protection on the left side menu.? BTW, the
facility in Colorado just receives the completed orders from Thailand,
stuffs them into envelopes, boxes, etc. and ships them out.? No
inventory is kept there.? They used to use a facility on the East Coast.

Vince.



On 12/10/2017 11:17 PM, Jack Purdum via Groups.Io wrote:
> Yeah, I saw that /after /I ordered them on line. Tayda turns up 0 if you
> search polyfuse, which is what I searched for. Search "polyswitch" and
> they pop up. I always check them first as they often ship from the
> distribution facility in CO. The offer will still stand for anyone who
> doesn't need extra stuff on the order.
>
> Jack, W8TEE
>
>
> ------------------------------------------------------------------------
> *From:* Vince Vielhaber <vev@...>
> *To:* [email protected]
> *Sent:* Sunday, December 10, 2017 10:26 PM
> *Subject:* Re: [BITX20] Reverse polarity diode circuit
>
>
> The better news, you can get them all day long from Tayda for 16 cents
> each. But they only have 119,418 of them in stock.? To the US, shipping
> from Tayda is only a week for their slow boat shipping. Tayda's minimum
> order is $5, so for another $3 and change you can get that replacement nano!
>
> Vince.
>
>
>
> On 12/10/2017 02:48 PM, Jack Purdum via Groups.Io wrote:
>> All:
>>
>> The good news: I just ordered a mega-munch of 3A, 30V polyfuses that I'd
>> be happy to share for $1, including domestic shipping.
>> The bad news: They're coming from China, so will likely be several
>> weeks. I'll make a post here after they've arrived.
>>
>> Jack, W8TEE
>>
>>
>> ------------------------------------------------------------------------
>> *From:* Jerry Gaffke via Groups.Io <jgaffke=[email protected]
> <mailto:[email protected]>>
>> *To:* [email protected] <mailto:[email protected]>
>> *Sent:* Sunday, December 10, 2017 2:24 PM
>> *Subject:* Re: [BITX20] Reverse polarity diode circuit
>>
>> Yup, a Polyfuse works great.
>> Can add a resistor and red LED across it as an idiot light so you know
>> when to? execute the dope-slap.
>> (Can also do that for a fuse)
>>
>> Though Farhan is looking for stuff that's easy to scrounge, doubt a
>> Polyfuse will make it into the next rev.
>> A small diode for both reverse protection and overcurrent protection on
>> the main rig might be the best bet.
>>
>> Jerry, KE7ER
>>
>>
>> On Sun, Dec 10, 2017 at 11:16 am, Don Cantrell wrote:
>>
>>? ? My favorite is the Polyfuse.
>>
>>
>>
>>
>
> --
>? Michigan VHF Corp.? <>
> <>
>? ? ? ? ? ? ? ? ? ? ? ? ?
> <>
>
>
>
>
>
>

--
? Michigan VHF Corp.? ?
? ? ? ? ? ? ? ? ? ? ? ? ?






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Re: HELP BITX40 RADUINO

 

ok,
thank you very much!
?
Re: uBITX dispolay

 

There is a tft touch control which works well with the bitx40.
I have just been in touch with my project friend VU2SPF, to modify the code to work with the new ubitx. He like myself (VE1BWV) are very interested in tackling this project.
We both have ordered ubitx rigs.

This project uses a 2.8 tft display with and atmega2560 and a si5351.
It can use different size displays but touch position may not be correct.
It offers all band control, colour display, and touch control and buttons for all functions.
Its up to user to choose which combination.

If you want to see videos on the display
just do a search on youtube
for vu2spf or UNIVERSAL TFT

Joe VE1BWV
SP Bhatnagar. VU2SPF


On Mon, Dec 11, 2017, 2:34 AM Ashhar Farhan <farhanbox@...> wrote:
you can add that. the tft and oleds have been found to be more power hungry and at times, noisier too.

- f

On Mon, Dec 11, 2017 at 11:51 AM, YT9TP - Pedja <yt9tp@...> wrote:

Is it considered to offer some more apealing display at least as an option? Something like 1.8" inch ST7735R SPI 128*160 TFT LCD Display.

--
Pedja YT9TP
Re: Small question about LCD mounting

 

I used one of the plastic cases from Bangood and cut the opening for the display with a?
coping saw. I made it just a little bit small for the display. I was then able to enlarge and even it out
using an exacto knife and sandpaper/file so that it was just big enough to friction-fit the display.
I didn't bother to use screws or any sort of glue.?

Michael VE3WMB?
Re: ubitx keyer

Jack Purdum
 

You're going to love it! Also, it brings into play a bunch of very small, very inexpensive, transceivers that don't have SSB like the ?BITX. I'm hoping to teach a CW class sometime and, instead of using code practice oscillators (CPO), I want the class to each build their own Pixie ($5) the first day of "class" and then use that for the CPO...you can't buy a CPO for that! With a 50 Ω resistor, the class could send code to each other, which would make practice more fun. It's still in the planning stages.

Jack, W8TEE


From: Ryan Flowers <geocrasher@...>
To: [email protected]
Sent: Monday, December 11, 2017 5:53 AM
Subject: Re: [BITX20] ubitx keyer

Dang it, now I'm going to have to learn CW just so I can take advantage of this :p

--
Ryan Flowers - W7RLF





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UBITX Questions

Jason N3YUG
 

First, does anyone have video of the latest UBITX in action.? Does the new UBITX have S-meter stock on the new kits going out?

Thanks for info.

Jason
N3YUG
Re: uBITX Case

Jack Purdum
 

Banggood sells a similar case to $10:

I bought two of these and they're pretty nice.

Jack, W8TEE

From: ekelley <ekelley828@...>
To: [email protected]
Sent: Monday, December 11, 2017 2:13 AM
Subject: Re: [BITX20] uBITX Case

Same box on Bangood for 9.99

On 12/11/2017 12:26 AM, Thomas Sharka via Groups.Io wrote:


?


Sent from Yahoo Mail.


On Monday, December 11, 2017 1:19 AM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote:


Don't have an EF01 or a uBitx, but Farhan's post #35063 says the board is:
? ? 6" by 5.5",?
? ? 1. the heatsink protrudes out of the backside side (6" long side)
? ? 2. the raduino plugs into the front and protrudes by 0.5", so you will need 6" depth for the box.
? ? you could, if you wanted to, remove the display from being plugged in, run a 7 wire cable
? ? from the raduino to the LCD board and place the LCD board anywhere else. but, roughtly,
? ? 6" x 6" is what it needs (for a very very tight fit, i couldn't get the volume control to the left of the raduino in that small a space).

And post #35065 says
? ? At least 2-1/2" inches if you are on standoffs. The stand-offs are 1/2 inch, the display is another 1-3/4 inch above the pcb

The EF01 is 200mm wide x 175mm deep by 70mm high, so ?7.87" wide x 6.89" x 2.75"
I assume those are outside dimensions, inside would be about 1/4" less?
So height is getting close if you use the 1/2" standoffs supplied with the uBitx, but those could be removed.
Plenty wide to get all the controls in.
Heatsink should probably protrude out the back anyway so it gets some airflow and can be checked
occasionally to see if it's getting hot. ?Guess I'd figure out how to mount a heatsink with screws coming up
from the bottom of the box, have the heatsink extend into the box by 0.75" or so to where the IRF510's could
be bolted to it after mounting the uBitx main board in place. ?Use a big heatsink swiped from an old computer.

Me, I'd prefer a metal box. ?This is about the same price as that EF01:
??
The 6.3" wide would be constraining, as Farhan suggests above we might want it wider to?
have a nice spot for a left hand volume control. ?But I could live with volume near the tuning knob.
And the aluminum bottom and back panel of that chassis should make a fine heatsink
for the IRF510's using TO220 insulating kits. ?Box is 7.3" deep, so might need a 0.5" thick plate of
aluminum between the IRF510's and the back of the box. ?Or could remount the IRF510's
to the bottom of the uBitx board and bolt them to the bottom of the box.

Jerry, KE7ER

On Sun, Dec 10, 2017 at 08:49 pm, <paulsmi55@...> wrote:
I'm looking at the footprint of my freshly-ordered uBITX and wonder if it would fit into the venerable Excellway EF01 case that folk have used to house their BITX40s ?
Can't track down internal dimensions for the box but it looks like it will be a tight fit if it does. May have to make a plan with the heatsinking arrangement to win back that 1/4".






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Re: uBITX Case

Gordon Gibby
 

开云体育

Dennis Zabawa wrote:

"This is turning into a fountain of mis-information.? Could someone provide a verified drawing showing the envelope dimensions of a finished? uBITX board assembly?"



I think this is the information you need:

"Don't have an EF01 or a uBitx, but Farhan's post #35063 says the board is:
? ? 6" by 5.5",?
? ? 1. the heatsink protrudes out of the backside side (6" long side)
? ? 2. the raduino plugs into the front and protrudes by 0.5", so you will need 6" depth for the box.
? ? you could, if you wanted to, remove the display from being plugged in, run a 7 wire cable?
? ? from the raduino to the LCD board and place the LCD board anywhere else. but, roughtly,?
? ? 6" x 6" is what it needs (for a very very tight fit, i couldn't get the volume control to the left of the raduino in that small a space).

And post #35065 says
? ? At least 2-1/2" inches if you are on standoffs. The stand-offs are 1/2 inch, the display is another 1-3/4 inch above the pcb"



You could draw that with a pencil to get an idea of what it looks like.??


Cheers!!



From: [email protected] <[email protected]> on behalf of Dennis Zabawa <kg4rul@...>
Sent: Monday, December 11, 2017 9:10 AM
To: [email protected]
Subject: Re: [BITX20] uBITX Case
?
This is turning into a fountain of mis-information.? Could someone provide a verified drawing showing the envelope dimensions of a finished? uBITX board assembly?

Re: uBITX Case

 

This is turning into a fountain of mis-information.? Could someone provide a verified drawing showing the envelope dimensions of a finished? uBITX board assembly?
Re: HELP BITX40 RADUINO

 

I'm currently working on raduino v2.0 which provides this.
To be released soon.

73 Allard PE1NWL

On Mon, December 11, 2017 14:06, yo3ifx via Groups.Io wrote:
Hello all!
I installed raduino version 1.27.2 and I would like to use a dds
oscillator for the carrier oscillator (BFO) and I would like to know if
this can be done and what raduino pine is taking the signal for BFO.
Thank you!!
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