Date   
Re: top band ubitx

bill richardson
 

Some more info and pictures for anyone wanting to use the uBitx on 160m. 

I’m having a blast on 160m I did add larger heat sinks and a pair of small fans that I can turn on and off as needed to keep the finals cool if I’m long winded or using digital modes.

Qrp labs makes a great low pass filter kit:

On Feb 7, 2018, at 7:22 AM, bill richardson <ng1p.bill@...> wrote:

160m doublet feed with 450 ohm line.
On Feb 6, 2018, at 9:23 PM, Vince Vielhaber <vev@...> wrote:

What are you using for an antenna?

Vince.


On 02/06/2018 08:06 PM, bill richardson wrote:
Turned the output down to about 8 Watts and have made 4 contacts on 160 with great reports. Will add a larger heat sink to be safe.
On Feb 6, 2018, at 7:26 PM, bill richardson <ng1p.bill@...> wrote:

I don’t have a spectrum analyzer but I think your right. Without the LPF installed I’m seeing over 20 Watts out on 160m and with it I see 12watts out so a lot of signal outside of the 160m band is happening...
On Feb 6, 2018, at 7:12 PM, John Backo <jabac@...> wrote:

Bill:

I think what you are seeing is the "normal" variation in the
output of the MOSFETS. Some are better than others at RF.

Gordon's suggestion to turn back the drive is probably the right answer.
Alternatively, you could turn down the gate voltage a bit, but that
would probably introduce compression distortion. Or you could increase
the size of the heat-sink and see how it goes. Probably the wisest thing
to do is both turn back the drive a bit and increase the heat-sink.

Some, but not all, IRF510's are capable of 20W or more on 80m.
you might happen to have some good ones. The key lies in the
harmonic generation and the heat-sinking.

Note that what you are seeing MAY be from UHF oscillation included in
the signal. Be very aware of that. Check your output very carefully.

john
AD5YE









--
Michigan VHF Corp.   http://www.nobucks.net/   http://www.CDupe.com/
                        http://www.metalworkingfun.com






Re: Smoking Genie

Michael Davis <maddmd818@...>
 

I have just finished chasing the smoking R141. Even after replacing the smd with an axial 1/2 watt, mounted vertically, it continued to get blazing hot after only 2-3 seconds of PTT. Be sure to check to see if it's still getting hot. After checking the obvious, rechecking all resistor values, double checking transistor voltages using Randy's chart. After replacing Q14, I still had the problem. I removed R14 again and mounted a new one, elevated like a 3 legged bug. Problem solved. My conclusion, with Q14 mounted tight to the board, there is a risk that the metal Q14 case will short to the board. An insulated spacer should be used or have been used, to keep this device up just a bit from the board. A friend suggested cutting the bottom of my case to access to the entire underside of the board. A great idea for new builders. BTW, I mounted the axial 10 ohm resistor through the tiny hole near it's original location. That connects to the bottom board foil ground, and one of my smd pads were destroyed from unsoldering the burned R141. 

Sent from Mike's iPad WA1MAD

 

Re: uBITX AGC - Adafruit TPA2016, A Success! #ubitx

Fred Buecker
 

The other board was a VK3YE that he said did not work very well.

-Fred
KC3HMS

On Feb 5, 2018 9:47 AM, "Michael Monteith via Groups.Io" <michael_r_monteith=yahoo.com@groups.io> wrote:
Which 2 boards?  I know the one is the TAP2016.  What's the other?

73, Michael
KM4OLT
On Fri, Feb 2, 2018 at 06:13 pm, Nick VK4PLN wrote:
Hi john, both boards from eBay...
I am really happy with the setup, AGC is performing very well in my opinion...

Re: Advice on selling Bitx40 on EBay

Bob Dritz <LANSWITCH@...>
 

Thanks for the responses so far, but what I REALLY want to know is if $100 is too high or too low to expect for all this stuff?

Re: BITX40- tune button- no output

Jack, W8TEE
 

It's probably worth mentioning that the "free" A1 refers to the original BITX40 code. Line 146 in that code shows:

// #define ANALOG_KEYER (A1)

which is commented out. If you do use that pin for the purpose mentioned here, you should probably add the following line:

pinMode(ANALOG_KEYER, INPUT_PULLUP);

somewhere around line 683 after uncommenting the #define. If you are using Allard's code, he has already used A1 for the key. Steve's reference also shows this.


Jack, W8TEE


From: Steve Thatcher <stevep2p@...>
To: BITX20@groups.io
Sent: Friday, February 16, 2018 4:08 AM
Subject: Re: [BITX20] BITX40- tune button- no output

Thanks Mike, but according to this

CONNECTING A STRAIGHT MORSE KEY or 'TUNE' BUTTON:

A straight key (or external electronic keyer) can be connected to Raduino pin A1 (connector P1, brown wire). It is recommended to install a 1K series resistor to protect the Arduino input. When the key is up (open) pin A1 will be HIGH. When the key is down (closed, shorted to ground) pin A1 will be LOW, and a carrier will be transmitted.
You could also wire up a simple push button instead of connecting a morse key. The generated CW carrier can be used for tuning up your antenna. In that case please note that you will be transmitting a carrier at full duty cycle, therefore don't keep the tune button pressed for too long to prevent overheating the final!

Am I misunderstanding something here?  Aloha, Steve


Re: Smoking Genie

 

Mike,

Mesure the voltage across the resistors and you know the resistors value. Calculate :if I remember right V2/R = Voltage squared divided by resistance to get the power dissipated. That should give you some insight on why the Rs are getting hot.

Raj

At 16/02/2018, you wrote:
I have just finished chasing the smoking R141. Even after replacing the smd with an axial 1/2 watt, mounted vertically, it continued to get blazing hot after only 2-3 seconds of PTT. Be sure to check to see if it's still getting hot. After checking the obvious, rechecking all resistor values, double checking transistor voltages using Randy's chart. After replacing Q14, I still had the problem. I removed R14 again and mounted a new one, elevated like a 3 legged bug. Problem solved. My conclusion, with Q14 mounted tight to the board, there is a risk that the metal Q14 case will short to the board. An insulated spacer should be used or have been used, to keep this device up just a bit from the board. A friend suggested cutting the bottom of my case to access to the entire underside of the board. A great idea for new builders. BTW, I mounted the axial 10 ohm resistor through the tiny hole near it's original location. That connects to the bottom board foil ground, and one of my smd pa
ds were destroyed from unsoldering the burned R141.

Sent from Mike's iPad WA1MAD

Re: BITX40: Allard's Firmware with Rotary Encoder?

Jack, W8TEE
 

Ryan:

See if the attached encoder article is of any help. It should at least get you started playing around with the encoder.

Jack, W8TEE



From: Ryan Flowers <geocrasher@...>
To: BITX20@groups.io
Sent: Friday, February 16, 2018 2:56 AM
Subject: [BITX20] BITX40: Allard's Firmware with Rotary Encoder?

Hello All,

I got Allard's Raduino sketch to compile on an Uno R3 that I'm playing with, and I also got a rotary encoder working on a test sketch, and now I need to figure out how to make Allard's sketch use the rotary encoder. I'm pretty new to Arduino (this is my first actual project aside from Blink and a few basic tests). I've figured out how to convert to an I2C display- that's easy enough, and I have a version of the sketch that does that successfully. I must be humble and admit that I don't have the time I wish I did, and I'd be better off if someone already figured out the encoder part so I could get a jump on that. I have other mods that I want to do, but Allard's code is so well featured I'd like to start there, if possible.

Thanks for the assist and 73!
--
Ryan Flowers - W7RLF
MiscDotGeek.com
Multi Band BITX40
The BITX40 FAQ


Re: Dec 16 order of uBitx received Feb 10 via India Post

VE7WQ
 

The BITX40 ordered on Feb 16 was shipped today via India Post.

Got a tracking number, but no url where I can check it.


73! George

VE7WQ


Saturday, February 10, 2018, you wrote:

VV> utilize the rest of the stuff on the front panel for your B40.


VV> Vince.


VV> On 02/10/2018 11:09 PM, VE7WQ wrote:

>> Thanks Vince!

>>

>> Great news. It would look nice.

>>

http://wq.uio.pw/wq/hamgears.html

>>

>> 73! George

>>

>> VE7WQ

>>



Re: Advice on selling Bitx40 on EBay

Arvo W0VRA
 

My 2¢:

I can buy the B40 w/Raduino for $59.  I'd consider $40-50 shipped a fair price, but interest is a lot less with advent of the µB.

The frequency counter and other displays are redundant with the Raduino, so those would probably have to sell separately, probably for about ½ of what they were new.

The pot and buck converter can be had by a bargain hunter for next to nothing from China, so probably not worth trying to get rid of them.

The cookie tin choice is a little personal, so you'd have to find someone who really took a fancy to it.

Consider adding pix to this thread and entertaining offers by email.

Re: Dec 16 order of uBitx received Feb 10 via India Post

Vince Vielhaber
 

Try going to your postal site (Canada Post?) and use their tracking. I know packages from other countries destined for the US can be tracked at USPS.com.

Vince.

On 02/16/2018 09:07 AM, VE7WQ wrote:
The BITX40 ordered on Feb 16 was shipped today via India Post.

Got a tracking number, but no url where I can check it.


73! George

VE7WQ


Saturday, February 10, 2018, you wrote:

VV> utilize the rest of the stuff on the front panel for your B40.


VV> Vince.


VV> On 02/10/2018 11:09 PM, VE7WQ wrote:

Thanks Vince!
Great news. It would look nice.
http://wq.uio.pw/wq/hamgears.html

73! George
VE7WQ


New, incremental release W0EB/W2CTX non-I2C software V2.01R #ubitx

Jim Sheldon
 

The CW Keyer module has been completely re-written in this version.  The keyer is now totally interrupt driven which helps make the transition to CW transmit much faster and it doesn't tend to clip the first dot as it did occasionally in past versions.  This version also moved the DASH paddle input from the analog A7 input.  It now shares the analog A3 input with the PTT line as normally PTT isn't used in CW mode and the Hand Key isn't used in CW Paddle mode or the Paddles aren't used in CW Hand Key mode so all three can share the same input easily.  This gives A7 back to those wishing to use it for metering applications.  Complete, illustrated documentation on everything in this release is contained in the zip file as a PDF.  Menu operation has been slightly improved from V2.00R as well.

We hope you enjoy using this version.
Jim - W0EB and Ron - W2CTX

New file uploaded to BITX20@groups.io

BITX20@groups.io Notification <BITX20+notification@...>
 

Hello,

This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20@groups.io group.

File: ubitx_V2_01R.zip

Uploaded By: Jim Sheldon

Description:
The CW Keyer module has been completely re-written in this version. The keyer is now totally interrupt driven which helps make the transition to CW transmit much faster and it doesn't tend to clip the first dot as it did occasionally in past versions. This version also moved the DASH paddle input from the analog A7 input. It now shares the analog A3 input with the PTT line as normally PTT isn't used in CW mode and the Hand Key isn't used in CW Paddle mode or the Paddles aren't used in CW Hand Key mode so all three can share the same input easily. This gives A7 back to those wishing to use it for metering applications. Complete, illustrated documentation on everything in this release is contained in the zip file as a PDF. Menu operation has been slightly improved from V2.00R as well. We hope you enjoy using this version. Jim - W0EB and Ron - W2CTX

You can access this file at the URL:
https://groups.io/g/BITX20/files/ubitx_V2_01R.zip

Cheers,
The Groups.io Team

Re: Dec 16 order of uBitx received Feb 10 via India Post

Lawrence Galea
 

Voyage of a μbitx from India to Malta.

Ordered 10 December 2017

https://www.aftership.com/couriers/india-post-int

Feb 15, 2018 07:10 pm

Send item to domestic location (Inb)India Post International

VALLETTA, Malta

Feb 15, 2018 04:53 pm

Receive item at office of exchange (Inb)India Post International

VALLETTA, Malta

Feb 13, 2018 10:39 am

Insert item into bag (Otb)India Post International

MILANO P. BORROMEO C.S.I., Italy

Feb 06, 2018 03:10 pm

Receive item at office of exchange (Inb)India Post International

MILANO C.M.P. ROSERIO, Italy

Dec 23, 2017 01:59 pm

Insert item into bag (Otb)India Post International

MUMBAI AIR, India

Dec 23, 2017 01:54 pm

Receive item at office of exchange (Otb)India Post International

MUMBAI AIR, India

Dec 21, 2017 09:20 am

Receive item from customer (Otb)India Post International

 

http://www.worktrace.com/tracktrace/trackPublic.jsp?refresh=1518796749126


 
Event code

 Location

 Actual date

 Posting

 IN500057

 2017-12-21 09:20

 Departure from Transit OE

 ITLINA, ,ITALY

 2018-02-13 10:39

 Included in Dispatch

 ITLINA, ,ITALY

 2018-02-13 13:58

 Arrived to OE Import

 305 Qormi Road,Marsa,MTP1001,MALTA

 2018-02-15 16:53

 Departure from inward OE

 305 Qormi Road,Marsa,MTP1001,MALTA

 2018-02-15 19:10

 

Delivered 16.02.2018 14.20



On Fri, Feb 16, 2018 at 3:59 PM, Vince Vielhaber <vev@...> wrote:
Try going to your postal site (Canada Post?) and use their tracking.  I know packages from other countries destined for the US can be tracked at USPS.com.

Vince.


On 02/16/2018 09:07 AM, VE7WQ wrote:
The BITX40 ordered on Feb 16 was shipped today via India Post.

Got a tracking number, but no url where I can check it.


73! George

VE7WQ


Saturday, February 10, 2018, you wrote:

VV> utilize the rest of the stuff on the front panel for your B40.


VV> Vince.


VV> On 02/10/2018 11:09 PM, VE7WQ wrote:

Thanks Vince!



Great news. It would look nice.



http://wq.uio.pw/wq/hamgears.html



73! George



VE7WQ







--
  Michigan VHF Corp.   http://www.nobucks.net/   http://www.CDupe.com/
                          http://www.metalworkingfun.com




Re: Mailbox metal case 3x6x9 inch #ubitx

Xcott Craver
 

Here's the final version with ventilation.   To remove and reverse the bottom panel I drilled out the punches with a 7/32 bit, and then enlarged the outer holes with a 1/4 bit, so 1/4" screws hold the case together.   Inside I isolated and slightly raised the heat sinks, and because of the distance to the back I replaced the antenna lead with a bit of RG174.  I'm guessing that wasn't really necessary, but why not.

I'm also digging the fact that as a steel case I can use printable magnet sheets as decals.   One of my last projects was writing a program to create rectangular azimuthal maps, which convey the same information as regular great circle maps but with more detail in a more compact and practical shape---handy at QSL card sizes (email me if you want one for your QTH, I can send you a pdf.)  I printed one for Binghamton on a magnet sheet, and it makes a tidy addition to the case.



And here it is working FT8 on the roof of the Engineering building:



Xcott K2CAJ

Re: Dec 16 order of uBitx received Feb 10 via India Post

VE7WQ
 

Thank you Vince, tried it but failed:


We could not find this Tracking Number in our system. 

You can  edit this Tracking Number or  Request Delivery Updates By Email

. 



73! George

VE7WQ


Friday, February 16, 2018, you wrote:

VV> USPS.com.

VV> Vince.


New file uploaded to BITX20@groups.io

BITX20@groups.io Notification <BITX20+notification@...>
 

Hello,

This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20@groups.io group.

File: ubitx_I2C_V2_01R.zip

Uploaded By: Jim Sheldon

Description:
This version is fundamentally the same as the NON-I2C version with interrupt driven CW Keyer and other enhancements. Documentation in the enclosed README and PDF files. This version will only run on an I2C modified Raduino OR on our recently released "RadI2Cino" (almost) drop-in replacement for the Raduino. Jim - W0EB and Ron - W2CTX

You can access this file at the URL:
https://groups.io/g/BITX20/files/ubitx_I2C_V2_01R.zip

Cheers,
The Groups.io Team

Re: Dec 16 order of uBitx received Feb 10 via India Post

VE7WQ
 

Thank you Lawrence,


This one worked for me:


India Post International

+91 1800 11 2011

In Transit

Feb 16, 2018

09:28 am

Receive item from customer (Otb)India Post International

Vijay Nagar Colony S.O (Hyderabad), India


73! George

VE7WQ


Friday, February 16, 2018, you wrote:

LG> *Voyage of a **μ**bitx from India to Malta.*


LG> *Ordered 10 December 2017*


https://www.aftership.com/couriers/india-post-int


LG> *Feb 15, 2018** 07:10 pm*


LG> *Send item to domestic location (Inb)India Post International*


LG> *VALLETTA, Malta*


LG> *Feb 15, 2018** 04:53 pm*


LG> *Receive item at office of exchange (Inb)India Post International*


LG> *VALLETTA, Malta*


LG> *Feb 13, 2018** 10:39 am*


LG> *Insert item into bag (Otb)India Post International*


LG> *MILANO P. BORROMEO C.S.I., Italy*


LG> *Feb 06, 2018** 03:10 pm*


LG> *Receive item at office of exchange (Inb)India Post International*


LG> *MILANO C.M.P. ROSERIO, Italy*


LG> *Dec 23, 2017** 01:59 pm*


LG> *Insert item into bag (Otb)India Post International*


LG> *MUMBAI AIR, India*


LG> *Dec 23, 2017** 01:54 pm*


LG> *Receive item at office of exchange (Otb)India Post International*


LG> *MUMBAI AIR, India*


LG> *Dec 21, 2017** 09:20 am*


LG> *Receive item from customer (Otb)India Post International*




LG> *http://www.worktrace.com/tracktrace/trackPublic.jsp?refresh=1518796749126

LG> <http://www.worktrace.com/tracktrace/trackPublic.jsp?refresh=1518796749126>

LG> *





LG> * Location*


LG> * Actual date*


http://www.worktrace.com/images/icons/good2.gif]*


LG> * Posting*


LG> * IN500057*


LG> * 2017-12-21 09:20*


http://www.worktrace.com/images/icons/good2.gif]*


LG> * Departure from Transit OE*


LG> * ITLINA, ,ITALY*


LG> * 2018-02-13 10:39*


http://www.worktrace.com/images/icons/good2.gif]*


LG> * Included in Dispatch*


LG> * ITLINA, ,ITALY*


LG> * 2018-02-13 13:58*


http://www.worktrace.com/images/icons/good2.gif]*


LG> * Arrived to OE Import*


LG> * 305 Qormi Road,Marsa,MTP1001,MALTA*


LG> * 2018-02-15 16:53*


http://www.worktrace.com/images/icons/good2.gif]*


LG> * Departure from inward OE*


LG> * 305 Qormi Road,Marsa,MTP1001,MALTA*


LG> * 2018-02-15 19:10*




LG> *Delivered 16.02.2018 14.20*



LG> On Fri, Feb 16, 2018 at 3:59 PM, Vince Vielhaber <vev@...> wrote:



>> know packages from other countries destined for the US can be tracked at

>> USPS.com.

>>

>> Vince.

>>

>>

>> On 02/16/2018 09:07 AM, VE7WQ wrote:

>>

>>> The BITX40 ordered on Feb 16 was shipped today via India Post.

>>>

>>> Got a tracking number, but no url where I can check it.

>>>

>>>

>>> 73! George

>>>

>>> VE7WQ

>>>

>>>

>>> Saturday, February 10, 2018, you wrote:

>>>

>>> VV> utilize the rest of the stuff on the front panel for your B40.

>>>

>>>

>>> VV> Vince.

>>>

>>>

>>> VV> On 02/10/2018 11:09 PM, VE7WQ wrote:

>>>

>>> Thanks Vince!

>>>>>

>>>>

>>>

>>>>>

>>> Great news. It would look nice.

>>>>>

>>>>

>>>

>>>>>

http://wq.uio.pw/wq/hamgears.html

>>>

>>>

>>>>>

>>> 73! George

>>>>>

>>>>

>>>

>>>>>

>>> VE7WQ

>>>>>

>>>>

>>>

>>>>>

>>>

>>>

>>>

>>>

>> --

http://www.nobucks.net/http://www.CDupe.com/

http://www.metalworkingfun.com

>>


>>

>>

Re: Mailbox metal case 3x6x9 inch #ubitx

Arvo W0VRA
 

Haha!  That was YOU on the Zed!  Well done!

W0EB/W2CTX new I2C software V2.01R Release#ubitx

Jim Sheldon
 

Incremental upgrade to our software for I2C display equipped Raduino cards and also our newly announced "RadI2Cino" card which is an (almost) drop-in replacement for the Raduino.  This release covers all the enhancements for the NON I2C Raduino released earlier in our non-I2C version 2.00R.  All the enhancements and new stuff is covered in the instruction PDF file --

(this version has also been uploaded to the "Files" section)

Jim - W0EB and Ron - W2CTX

Re: W0EB/W2CTX new I2C software V2.01R Release#ubitx

Jim Sheldon
 

typo - this version is the I2C release for our version 2.01R -- wish they would allow edits rather than having to send a new reply to fix typographical errors!!!!!