Date   

Re: uBitx sound

Tim Gorman
 

It's the 12Mhz SSB filter that limits the audio bandwidth.

tim ab0wr

On Fri, 01 Jun 2018 07:03:01 -0700
"Lee" <mr.olson@...> wrote:

So we already have a filter to cut audio outside the 700-2800 range?
I was building a SSB-Mite from 4 State QRP Group.  I searched the
messages for it and did not find anything.   Can you tell us where in
the uBitx schematic it is.  Curious to compare it to the SSB-Mite. --
Lee - N9LO "I Void Warranties"


Re: Transmitter Mods

Dave de WS1ETI <docame12@...>
 

" Unless you are keen to help diagnose these problems, best to just 
sit on your hands till Allison and others report back."   Just what I plan on doing. But, it is fun to watch you and Allison weave your voodoo magic on this!   :)

Dave


Re: Teensy I2c on wire2 (SDA2/SCL2) #ubitx

Jim, N5IB
 

There is a separate library for Teensy (i2c_t3) that comes as a built in library in the Teensy add-on for the IDE.
It is supposed to handle Wire1, Wire2, Wire3, and Wire4
#include <i2C_t3.h> instead of #include <Wire.h>

But apparently the LCD library may only be able to access Wire1

N5IB


Re: boosting the power on 28 MHz #ubitx

Joe Puma
 

Oh wow. Allard I didn’t know you were the creator, It’s a good service. Btw just got notice that there’s some Sporadic E on 6meters right now if anyone wants to have a go at it lol.

Joe
KD2NFC

On Jun 1, 2018, at 10:25 AM, Allard PE1NWL <@pe1nwl> wrote:

Great to hear this Joe! I never expected it would grow this big when I
started the DXrobot in the summer of 1999.

73 Allard PE1NWL


On Fri, June 1, 2018 16:06, Joe Puma wrote:
Allard I use this service DXRobot. I get audio alerts on a simplex node I
use that gives me propagation alerts. I get alerts everyday when 6m is
open

Joe
KD2NFC
On Jun 1, 2018, at 4:11 AM, Allard PE1NWL <@pe1nwl> wrote:

For 6m (and up) you can use the DXrobot to monitor the band condition
and
to efficiently work DX:

http://www.gooddx.net

Band status alerts are also sent via Twitter:

https://twitter.com/dxrobot

And if you have an Android device you can use this free alerting app:
https://play.google.com/store/apps/details?id=net.gooddx.essense

73 Allard PE1NWL

On Fri, June 1, 2018 08:36, iz oos wrote:
Maybe in Europe works a little bit better. In May and June we know
bands
may be open and some people try to call. Also are very important the
beacons. TEP is another story as I found it open in February to South
Africa and no beacon can help. Dxmaps Site may help with its e-sporadic
clouds maps but these are theoretical values based on actual qsos and if
no
one calls no e-cloud can be mapped. SELFSPOTTING in these cases should
not
be blamed.
Il 01/giu/2018 03:45, "ajparent1/KB1GMX" <kb1gmx@...> ha scritto:
6M has been the magic band for many decades before me. ;)
As a hard core VHF/UHF op I spend a lot of time on 6M. How hard core?
My first three HB radios were for 6, they remain in service since. 6M
is
not high power, its good antennas, yagis and they are not hard to
build.
The entry level is horizontal 3 elements on a 6ft boom and a few
watts.
10M is a second favorite. Its open more than closed. The problem is
everyone
is listening, no talking. End of last cycle I got tired of hearing
"10 is
dead" so with a
tribander, end fed halfwave wire and qrp power [4W SSB] I worked 85
countries in
5 months. There was TEP and Eskip enough that it included spots like
MacMurdo
and the Falklands from W1 land. Then a living got in the way... ;) I
hear its dead from many, they all answer the question, When did you
call
CQ there?",
they didn't. If no one is talking someone has to make the first
noise.
Generally true
most bands but generally 10 and 15 (and 17) will be daylite bands for
a
while and
occasional night skip. Oh, and 6M is entering the E-skip season
(least
here in USA)
and EU too and that happens any time for a few minutes or hours. The
only
way
to know is to be there.
Allison









PTT Question

Curt M.
 

Hi guys, I'm going to build up my uBitx and use a standard 4 pin mic jack.  For some reason I'm not used to seeing the circuit drawing of the jack in the Wire Up so this is my interpretation.

I just want to make sure that I have this correct.

Violet = Mic +
Blue = Mic GND
Orange = PTT
Shorting between Orange and Blue will trigger PTT.  Is that correct?

Thanks,

Curt


Re: uBITX -Regarding the PA transistor heatsinks.

Ralph Mowery
 

I was lucky in the box I put my uBITX in was just large enough to fit the display out  a hole in the front and the heat sinks out the back.  When I changed the final transistors the tab was at ground.  Then I bought a large heat sink and fastened it to the box and bolted the transistors to it.  That gave me a heat sink about 3 inches tall and 4 inches long with some vertical fins.

On Fri, Jun 1, 2018 at 3:31 AM, Peter LB0K <lb0k@...> wrote:

 

I can see the insulation argument to why these are installed hanging on to the IRF510s but this puts a large mechanical load on the transistor legs and increases the risks of damage especially if one tried to use the uBITX as a portable, even as a SOTA rig.

 

One could fit a larger heatsink that was fixed to the chassis/casing or PCB and one would then have to add rectangular insulating washers between the transistors and the heatsink.
These changes would increase the parallel drain(s) capacitance to ground

 

What sort of negative results should/could one expect from these measures?

 And could one fix'em?

 

I envisage these positive results:-

-       better mechanical strength

-       easier to provide controlled cooling of the heatsink.

-       a slight increase of weight

 
Someone has suggested use of  very beefy
6400BG heatsink, this has two solderable pins installed in the one end of the profile. However the uBITX board has no room for these.



Re: boosting the power on 28 MHz #ubitx

Allard PE1NWL
 

Great to hear this Joe! I never expected it would grow this big when I
started the DXrobot in the summer of 1999.

73 Allard PE1NWL

On Fri, June 1, 2018 16:06, Joe Puma wrote:
Allard I use this service DXRobot. I get audio alerts on a simplex node I
use that gives me propagation alerts. I get alerts everyday when 6m is
open

Joe
KD2NFC
On Jun 1, 2018, at 4:11 AM, Allard PE1NWL <@pe1nwl> wrote:

For 6m (and up) you can use the DXrobot to monitor the band condition
and
to efficiently work DX:

http://www.gooddx.net

Band status alerts are also sent via Twitter:

https://twitter.com/dxrobot

And if you have an Android device you can use this free alerting app:
https://play.google.com/store/apps/details?id=net.gooddx.essense

73 Allard PE1NWL

On Fri, June 1, 2018 08:36, iz oos wrote:
Maybe in Europe works a little bit better. In May and June we know
bands
may be open and some people try to call. Also are very important the
beacons. TEP is another story as I found it open in February to South
Africa and no beacon can help. Dxmaps Site may help with its e-sporadic
clouds maps but these are theoretical values based on actual qsos and if
no
one calls no e-cloud can be mapped. SELFSPOTTING in these cases should
not
be blamed.
Il 01/giu/2018 03:45, "ajparent1/KB1GMX" <kb1gmx@...> ha scritto:
6M has been the magic band for many decades before me. ;)
As a hard core VHF/UHF op I spend a lot of time on 6M. How hard core?
My first three HB radios were for 6, they remain in service since. 6M
is
not high power, its good antennas, yagis and they are not hard to
build.
The entry level is horizontal 3 elements on a 6ft boom and a few
watts.
10M is a second favorite. Its open more than closed. The problem is
everyone
is listening, no talking. End of last cycle I got tired of hearing
"10 is
dead" so with a
tribander, end fed halfwave wire and qrp power [4W SSB] I worked 85
countries in
5 months. There was TEP and Eskip enough that it included spots like
MacMurdo
and the Falklands from W1 land. Then a living got in the way... ;) I
hear its dead from many, they all answer the question, When did you
call
CQ there?",
they didn't. If no one is talking someone has to make the first
noise.
Generally true
most bands but generally 10 and 15 (and 17) will be daylite bands for
a
while and
occasional night skip. Oh, and 6M is entering the E-skip season
(least
here in USA)
and EU too and that happens any time for a few minutes or hours. The
only
way
to know is to be there.
Allison







BiTX 40 for sale

W1PJE
 

Hi all,
 
I have an unopened/unmodified BiTX-40 for sale, purchased on January 25, 2017.  I'm just not getting enough time for projects - as is obvious between the purchase date and now! - so it's better to get it into other hands.  It even has the original India Post cardboard box!

  Price = $55 including shipping by Paypal.  I will ship by priority mail to the US address you provide. Shipment outside US would need to be discussed.  Please contact me at W1PJE at arrl.net for the Paypal address and other details.

73,
Phil W1PJE


Re: boosting the power on 28 MHz #ubitx

Joe Puma
 

Allard I use this service DXRobot. I get audio alerts on a simplex node I use that gives me propagation alerts. I get alerts everyday when 6m is open

Joe
KD2NFC

On Jun 1, 2018, at 4:11 AM, Allard PE1NWL <@pe1nwl> wrote:

For 6m (and up) you can use the DXrobot to monitor the band condition and
to efficiently work DX:

http://www.gooddx.net

Band status alerts are also sent via Twitter:

https://twitter.com/dxrobot

And if you have an Android device you can use this free alerting app:
https://play.google.com/store/apps/details?id=net.gooddx.essense

73 Allard PE1NWL

On Fri, June 1, 2018 08:36, iz oos wrote:
Maybe in Europe works a little bit better. In May and June we know bands
may be open and some people try to call. Also are very important the
beacons. TEP is another story as I found it open in February to South
Africa and no beacon can help. Dxmaps Site may help with its e-sporadic
clouds maps but these are theoretical values based on actual qsos and if
no
one calls no e-cloud can be mapped. SELFSPOTTING in these cases should
not
be blamed.
Il 01/giu/2018 03:45, "ajparent1/KB1GMX" <kb1gmx@...> ha scritto:
6M has been the magic band for many decades before me. ;)
As a hard core VHF/UHF op I spend a lot of time on 6M. How hard core?
My first three HB radios were for 6, they remain in service since. 6M
is
not high power, its good antennas, yagis and they are not hard to
build.
The entry level is horizontal 3 elements on a 6ft boom and a few watts.
10M is a second favorite. Its open more than closed. The problem is
everyone
is listening, no talking. End of last cycle I got tired of hearing "10 is
dead" so with a
tribander, end fed halfwave wire and qrp power [4W SSB] I worked 85
countries in
5 months. There was TEP and Eskip enough that it included spots like
MacMurdo
and the Falklands from W1 land. Then a living got in the way... ;) I
hear its dead from many, they all answer the question, When did you
call
CQ there?",
they didn't. If no one is talking someone has to make the first
noise.
Generally true
most bands but generally 10 and 15 (and 17) will be daylite bands for a
while and
occasional night skip. Oh, and 6M is entering the E-skip season (least
here in USA)
and EU too and that happens any time for a few minutes or hours. The only
way
to know is to be there.
Allison





Re: uBitx sound

Lee
 

So we already have a filter to cut audio outside the 700-2800 range?  I was building a SSB-Mite from 4 State QRP Group.  I searched the messages for it and did not find anything.   Can you tell us where in the uBitx schematic it is.  Curious to compare it to the SSB-Mite. 
--
Lee - N9LO  "I Void Warranties"

 


Re: Teensy I2c on wire2 (SDA2/SCL2) #ubitx

Tim Gorman
 

I don't think the issue is the bus voltage.

The issue is getting the SDA2 and SCL2 pins to work instead of SDA1 and
SCL1.

The Wire library seems to only handle SDA and SCL, not any of the other
SDA/SCL combinations available on the Teensy.

tim ab0wr

On Thu, 31 May 2018 23:31:32 -0500
"AA9GG" <paul.aa9gg@...> wrote:

Haven't tried it, but remember that the si part is running at 3v and
the display is at 5v. Therfore you will need to use 4.7k resistors
to pull the SDA and SCL lines to 3v (NOT 5v). Make sure you remove
the pull-ups off of the lcd if they are present and just use the ones
in the si circuit.


Re: BITX QSO Afternoon/Evening, Sunday, June 3, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.

Dave de WS1ETI <docame12@...>
 

Until I resolve my microphone input level I will be working CW, only. I'll call CQ BITX on, or about, 7030 KHz starting around 1900 utc.

Dave WS1ETI


Re: Teensy I2c on wire2 (SDA2/SCL2) #ubitx

Jack, W8TEE
 

Or, you can use a DC-DC converter.

Jack, W8TEE

On Friday, June 1, 2018, 12:31:43 AM EDT, AA9GG <paul.aa9gg@...> wrote:


Haven't tried it, but remember that the si part is running at 3v and the display is at 5v.   Therfore you will need to use 4.7k resistors to pull the SDA and SCL lines to 3v (NOT 5v).  Make sure you remove the pull-ups off of the lcd if they are present and just use the ones in the si circuit.

--
Paul Mateer, AA9GG
Elan Engineering Corp.
www.elanengr.com
NAQCC 3123, SKCC 4628


Re: The new uBITX boards are here

Daniel Conklin <danconklin2@...>
 

Sorry, typo!  ND6T http://www.nd6t.com/uBITX.htm


Re: The new uBITX boards are here

Daniel Conklin <danconklin2@...>
 

I should also mention Don, ND8T who has a site with info and some good mods: http://www.nd6t.com/uBITX.htm


Re: Nextion Display

Charudatt Uplap
 

I am happy, someone’s looking at the Nextion Display.

 

Although a bit costly, they would prove to be the best and NO-LOAD on the Arduino, I guess.

 

Looking forward to seeing something on this line.

 

Thank you Ian, for considering it.

 

regards

charudatt – vu2upx

 

From: BITX20@groups.io <BITX20@groups.io> On Behalf Of Ian Lee
Sent: Friday, June 1, 2018 7:17 AM
To: BITX20@groups.io
Subject: Re: [BITX20] Nextion Display

 

Nextion LCD must conform to the communication protocol specified.

I applied the protocol specified in Nextion LCD and connected it with uBITX

 

Ian

 

2018-06-01 6:19 GMT+09:00 W2CTX <w2ctx@...>:

Ian, correct me if I am wrong, is saying use the serial port to send FT-817 commands to control the uBITX.

 

rOn

On May 31, 2018 at 5:09 PM Joe <joeman2116@...> wrote:

This looks great to see progress for ubitx and nextion integration.

 

I am looking at purchasing:

Nextion Enhanced 3.2" HMI Touch display

 

Product Code : RB-Ite-174

 

Would this work ok for working with your development?

Thanks

Joe

VE1BWV

 

On Thu, May 31, 2018 at 1:33 PM, Ian Lee <kd8cec@...> wrote:

Nextion LCD User and all

 

I released the version (V1.080) and experimented with various things.

from the beginning of uBITX firmware development, there was a request support for Nextion LCD.

Since version V1.073, various LCD was supported (Except Nextion LCD)

Some users have sent related materials to Nextion LCD and I have purchased Nextion LCD.

I do not know how to use Nextion LCD well.

 

I have seen DMR Hotspot use Nextion LCD. I was surprised to see that users could easily implement their own UI programs on the Nextion LCD.

I can not use the Nextion LCD well but the interface with uBITX is implemented.

You do not need any hardware modifications to use the Nextion LCD.

Just remove the existing LCD and connect the Nextion LCD in place using 5 Lines. It looks like an I2C LCD.

Like the DMR Hot Spot, I think users will be able to pick and use the UI.

 

If you want UI programming on Nextion LCD, please send me mail (with your mail address)

also Please email me if you can beta test my protocol or 2.4 "LCD.

I will send you a code to test Nextion LCD with uBITX and template code for Nextion LCD UI Designer.

I am making a UI suitable for 2.4 "LCD based on Template. It's a $ 17 LCD that I bought from Aliexpress, but it's still good.

 

Ian KD8CEC

 

 

 

 

2018-05-22 23:00 GMT+09:00 Allen Merrell via Groups.Io <kn4ud@...>:

I am interested in this too. I have not received  my ubitx yet but have been playing around with the Arduino and stm. I've  not had much luck with stm  f303k8  nucleo , mostly because like it has been mentioned library  issues  I have not tried  the  blue pill or the f4 boards I have.
--
73's  kn4ud
Allen  Merrell

 

 

 

--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

 

 

 

 


--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)


Re: BITX QSO Afternoon/Evening, Sunday, June 3, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.

iz oos
 

Wouldn't be easier to set fixed UTC hours instead of local time? Local Time just too dispersive in my opinion.

Il 01/giu/2018 13:07, "John P" <j.m.price@...> ha scritto:
>
> BITX QSO Afternoon/Evening, Sunday, June 3, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.
>
> Join us as we make contacts with our BitX-40s or uBitXs or anything else on 7.277 MHz in 40 meters!
>
> This is a worldwide event for BitX40 (and other QRP) stations starting at 3PM and 7pm in each time zone. To participate, call CQ BitX on Sunday, starting at 3PM and/or 7PM your local time. The BitX QSO Night continues through the evening and conditions usually improve after sunset, so it is worthwhile to participate later in the evening.
>
> Suggested Best Operating Practices:
>
> Work at QRP power levels unless conditions require more power.
> Call and listen for CQ BITX on the hour and every quarter hour.
> It is helpful if you call CQ BITX with your callsign, name and location. 
> Repeat your callsign a number of times during your CQ BITX and during QSO's.
> Start a QSO by confirming the callsign, location, name and signal report of the other operator.
> Say the callsign, name and location of the other operator so others can hear.
> If the frequency is busy, avoid long conversations.
> After your initial QSO is complete, ask if there are any other stations who would like to contact.
>
> Report your QSO's, discuss propagation, noise, signal reports, audio reports, antenna type, etc. in this thread.
>
> This is an undirected, scheduled event.  The BITX QSO Night relies on you to call CQ BITX to initiate contacts with other stations, so warm up that final and transmit a few calls on Sunday evening.  Talk to you then!
> --
> John - WA2FZW
>


Re: The new uBITX boards are here

Daniel Conklin <danconklin2@...>
 

Bob,
The "old" board works well.  You will likely be happy with its performance.  There are some mods and kits for mods available to fix the few minor issues that may or may not bother you.  If you read up on ZL1AXG, Mike's blog, http://ubitx.net/ you will find useful information on those things, but it is recommended to first assemble your radio and try it as-is.  Have fun and learn a lot!  
Dan, W2DLC


Re: uBITx For Sale #ubitx

Paul Galburt - K2AYZ
 

Hi, Richard,

I have a recent spare that I will not get around to for a long time. Completely unopened.

Prirce is the same $109 by paypal to "jean (at) g2ideas.com"

I will ship by priority mail to the US address you provide. Shipment outside US would need to be discussed.

73,

Paul K2AYZ


Re: The new uBITX boards are here

W8RMV
 

Good news... bad news.  I just received the "old" board a few days ago.  :-(   Will there be a retrofit parts list and modification instructions?  This would greatly simplify the process for many willing to give it a go.  I prefer to make the mods prior to assembly into the case.  Thanx - Bob W8RMV