Date   
Re: uBitx sketch and hardware help needed

JuanCarlos
 

Thank you very much
I will review it and let you know
Qrv's
73's Jc

2017-05-03 19:07 GMT-04:00 VK3HN <prt459@...>:

JuanCarlos, I read it as follows: 1. Line 82 (comment) should read A1, not A2 2. The pin numbers in the uBitx code at lines 99 and 100 do not align with the wiring to connector P3 on the uBitx Arduino script. They appear to be reversed. On bitxdigi.sch Rev:Id:1/1, P3.pin16 should be GND not paralleled with pin15; pin15 should be +12v not +5v. The #defines are the Arduino digital IO numbers, not Arduino pin numbers or P3 pin numbers. If you reverse the numbers on P3, the numbers align with the comment lines 99 and 100 For example, trace thru the CW_TONE which is #defined as 6. P3.pin2 is wired to nano D6, which is CW_TONE. In the comment block (99-100) if you reverse the numbers (1 becomes 16, 2 becomes 15 etc) CW_TONE ends up on pin15 which is correct. FYI, I have built the nano/si5351 and have it running the uBitx script, but have not wired all the uBitx modules up yet. Good luck!


Re: Bitx40 with rotary encoder + CW

pat griffin
 


I had the same question about saving and restoring the original program.  It can be done using avrdude but it turns out it isn't necessary since the source of just about all releases is available.  Also, the current v1.09 compiles and installs without a hitch and you will not want to go back.  Search the messages for "hex dump" to see the discussion about this.

73,

Pat AA4PG


Pat Griffin
http://www.cahabatechnology.com/aa4pg.html


From: BITX20@groups.io <BITX20@groups.io> on behalf of Rogério Pimentel <pimentel.feijao@...>
Sent: Wednesday, May 3, 2017 1:32:35 PM
To: BITX20@groups.io
Subject: [BITX20] Bitx40 with rotary encoder + CW
 
Hello,

Why does anyone have some modification to implement rotary encoder
with s-meter and CW on bitx40?
My kit uses the raduino. I would also like to have the backup of the
original program of the kit to be saved if the modifications do not
work out
I need help because I have no experience with raduino and I'm starting
now in amateur radio

Tks
PU2URP - Pimentel
73



Noob Here

Andy McKenna
 

Hello and thank you for reading 


I purchased my bitx 40 V3 about four months ago Before they came out with the si 5351 and digital display board. So I just purchased the si 5351 display board from hfsigs.com And decided today to finally put this thing together. I looked online for some instructions on how to do this and I'm not clear on it. Are there any modifications that I have to make to my version three board? I have a few extra parts and the big That I'm not sure what to do with I really hope this has not been asked 100 times. I've looked but could not find anything and I'm not exactly sure what to search for to find it. I also want a change of the tuning pot and put a rotary encoder in but I saw things I'm helping with that.


Thanks for the help and 73's


Andy


Re: Noob Here

Steve Greer
 

extra parts a smd resistor and a ceramic capacitor?

On Wed, May 3, 2017 at 10:07 PM, Andy McKenna <amckenna1@...> wrote:

Hello and thank you for reading 


I purchased my bitx 40 V3 about four months ago Before they came out with the si 5351 and digital display board. So I just purchased the si 5351 display board from hfsigs.com And decided today to finally put this thing together. I looked online for some instructions on how to do this and I'm not clear on it. Are there any modifications that I have to make to my version three board? I have a few extra parts and the big That I'm not sure what to do with I really hope this has not been asked 100 times. I've looked but could not find anything and I'm not exactly sure what to search for to find it. I also want a change of the tuning pot and put a rotary encoder in but I saw things I'm helping with that.


Thanks for the help and 73's


Andy



Re: Noob Here

Andy McKenna
 

no SMD resistor 1 .1 uf ceramic cap and a t50-6 toroid with 50 turns. I did get about 5 smd resistors with the original board that I am unsure what to do with,

Re: Noob Here

Steve Greer
 

ok did the toroid fall off the board somewhere? It has happened.  1.1 uf did you put the cap across the tuning pot? 

On Wed, May 3, 2017 at 10:14 PM, Andy McKenna <amckenna1@...> wrote:
no SMD resistor 1 .1 uf ceramic cap and a t50-6 toroid with 50 turns. I did get about 5 smd resistors with the original board that I am unsure what to do with,


Re: Noob Here

Andy McKenna
 

the toroid was in the bag with all the wires and other components that got sent with the raduino board. So it did not fall off anything and it is listed on the "Box Contents" paper that came in the box with the raduino board. The cap is a 0.1uf


Thanks


Andy

Re: Noob Here

Andy McKenna
 

I think I am good with all the parts that came with the original V3 BITX 40 board but I am confused with the contents of the raduino add-on components that came in the box with it.

Re: Noob Here

Steve Greer
 

I think but don't quote me it may be for the old style vfo.  I started with the radrino.  There is a cap that should be on the 10k tuning pot 

On Wed, May 3, 2017 at 10:25 PM, Andy McKenna <amckenna1@...> wrote:

the toroid was in the bag with all the wires and other components that got sent with the raduino board. So it did not fall off anything and it is listed on the "Box Contents" paper that came in the box with the raduino board. The cap is a 0.1uf


Thanks


Andy


Re: Anyone using an RD16HHF1 for the PA final??

MVS Sarma
 

The pin out is different, David. You need to cut and jumper the tracks to suit RD16pin out. Stusythe datasheets and do it.
All the best
sarma
 vu3zmv

On Thu, May 4, 2017 at 3:08 AM, David McGough <kb4fxc@...> wrote:

Hi Everyone,

Has anyone "bitten the bullet" and changed from the IRF-510 to a RF MOSFET
like the RD16HHF1??

Just wondering and not wanting to reinvent the wheel!

73, David KB4FXC









--
Regards
Sarma
 

Re: Noob Here

M Garza <mgarza896@...>
 

The toroid is L4.  If you had purchased the version with the Raduino, they included L4 to put in, if you wanted the analog VFO.  The cap is to be put across the tuning pot.  Since you had the old analog version, you need to remove the existing L4 and then the Raduino will work as your VFO.

I hope that made sense.

Marco - KG5PRT 

On May 3, 2017 9:28 PM, "Steve Greer" <km4ous@...> wrote:
I think but don't quote me it may be for the old style vfo.  I started with the radrino.  There is a cap that should be on the 10k tuning pot 

On Wed, May 3, 2017 at 10:25 PM, Andy McKenna <amckenna1@...> wrote:

the toroid was in the bag with all the wires and other components that got sent with the raduino board. So it did not fall off anything and it is listed on the "Box Contents" paper that came in the box with the raduino board. The cap is a 0.1uf


Thanks


Andy


Re: Anyone using an RD16HHF1 for the PA final??

davetelling .
 

What is the advantage of this part, compared to the IRF-510?

Re: BITX QSO Night, Sunday, May 7, 9pm Local Time, 7.179 MHz

davetelling .
 

Well, I had my first "real" QSO with my bitx40 tonight. By "real" I mean that I called CQ and got a reply! Thanks to KK6QCV, Brad, who replied to my 7 watt call. The band was up and down, but we ended up having a very nice 10 minute QSO, and he reported that my bitx40 had very nice audio. Definitely worth the assembly effort and the Arduino hacking to use the rotary encoder! I was on 7.192 MHz. Carson City, NV to Riverside, CA on 7 watts. Not bad..

Re: Anyone using an RD16HHF1 for the PA final??

MVS Sarma
 

Dave,

 RD16 is a real RF power mosFET as against IRF510 .
 the frequency gain response with RD16 would be near flat up to 30MHz.
 while IRF510 would manage to work  though not meant for HF work at all.
 Check the input capacitance  Cgs of both devices  that makes RD16 as manufactured for specific HF amplification

Also the heatsink pin of RD16 device is Source  to be anyway grounded.
 When we use IRF device the Drain sits on the heatsink, needing proper insulation.
 Still there would be HF radiation within from heatsink itself, i fear.
regards
 sarma
 vu3zmv

On Thu, May 4, 2017 at 9:46 AM, davetelling . <davetelling@...> wrote:
What is the advantage of this part, compared to the IRF-510?




--
Regards
Sarma
 

Re: USB for digital ops wierd noise and low output power

Jon EA2SN
 

Folks,
don't forget the BITX is designed for SSB service. JT65 puts out a 47 second
continuous carrier, and WSPR is almost 2 minutes, so a power decrease is
a wise move unless you want to melt your finals.
jon, ea2sn

HBD Farhan

Prathap Naidu
 

Hi Farhan

Wishing you a very Happy Birthday & many happy returns of the day

All the very best in the years to come.

Wishing all success in your projects

de

Pop

VU2POP

 

NB : My Apologies  if considered Off Topic

 

Tnx 73 VU2POP

Paper Problems

OZ9AEW <madsen1960@...>
 

Hi

I do not know if it have happens before, but my Bitx40 arrived today and of course I have to pay tax, but from India the value are set as 69USD , that is the price include fast shipping using DHL !

it mean I am going to pay 96USD include tax, just because of paper error.... shipping is normally taxfree here in Denmark

Re: Paper Problems

Ashhar Farhan
 

how could this be avoided?
- f

On 4 May 2017 1:41 p.m., "OZ9AEW" <madsen1960@...> wrote:

Hi

I do not know if it have happens before, but my Bitx40 arrived today and of course I have to pay tax, but from India the value are set as 69USD , that is the price include fast shipping using DHL !

it mean I am going to pay 96USD include tax, just because of paper error.... shipping is normally taxfree here in Denmark


Re: Paper Problems

OZ9AEW <madsen1960@...>
 

shipping is set to 0 USD ! means I have payed tax of shipping

Re: BITX40 Serial Numbers

OZ9AEW <madsen1960@...>
 

order1 may arrived 4 may means 3 days for shipping ( via DHL ) 4-058