¿ªÔÆÌåÓý

Date

Re: CW/TUNE BUTTON INSTALLITION

 

Do you have the links for that? I would like to check it out and some features to my BITX.

Thanks.
73
Ben
KD2NOU?


On Wed, Nov 1, 2017 at 1:30 PM Barrett O <ogebarrett@...> wrote:
I am in the process of setting up a straight key and a tune button. Most of the instructions seem straight forward but I have a couple discrepancy's maybe due to inexperience.
In the tx-rx photo it shows 4k7 inline with a transistor. Do they mean 47k or 4.7k resistor maybe?
And in the sidetone wiring photo it looks like they have a 1k and 47ohm resistor in series with the positive lead of the speaker input on the board am I interpreting it right?


Barrett
KG5SSO

--
Ben
KD2NOU


Re: Modular BiTX40

 

I posted what it had cost me for the pc boards.? Perhaps they were at the end of shift or someone was falling asleep when my submission to PCBWAY was reviewed.? I can't say.? I only wanted to make the group here aware of the modular build.? Since I have no financial interest in PCBWAY and the design is not mine, if you're interested in pursuing the project, please feel free to use whatever manufacturing source you deem adequate.? I'd like to see several people follow thru.? I think it will make a great foundation for working toward a multi-band rig without sacrificing the original construction and I'd like to be able to compare progress and notes.

Regards -- Mike --? W0MNE


Re: Customs charge

 

21? That's nothing compared to Portugal.
The bitx for the Portuguese Ham's comes in a total of 130€ with tax and DHL storing costs.?
A good friend of mine did order 4 bitx40 to Germany and then resend to Portugal for a couple friends o mine and they costs each 79,60€.
So be happy with your 21?, ?your are a lucky Ham.

Regards
Frederico

Sent over an Android device

Am 29.10.2017 16:27 schrieb "Philip Thompson" <pcteee@...>:

Hi folks
My BITX40 is due for delivery on tuesday by DHL.
Just got a call to pay ?21 customs charge...

Anybody else paid this in UK?

Phil? G4JVF


Re: raduino problem

 

hi Larry
yes i have checked all your tips according with schematic the ground pin are 12 and 13
cheked with digital oscilloscope there isn't signal at pin 14 i think the si5351a don't work or it is damaged
to use at moment the rtx i will found the original vfo on board to complete with L4 and C93.
L4 wich toroid is? t37-6? how many turn i must made on it?
thank you
i will order a new si5351a to test the raduino board
73


Re: raduino problem

 

yes i have connected it but the result don't change


Re: Modular BiTX40

 

I have used Dirtypcb a few times pretty good service to be honest.

?

?? 73

? David


Re: raduino problem

 

Re-seat P3 on Raduino module.

Use a magnifying lens to inspect PCB solder connections on si5351

Check:
P3 pin 14? is good Clk2
? ? ? ? ? ? 11? ? ? "? ? ? ? Clk1
? ? ? ? ? ? ?8? ? ? ?"? ? ? ? Clk0
also

P3 pins 16 and 15 Ground are good connections

Check where P3 socket pins are soldered for good solder joint (or solder bridge).

Inspect all solder points on PCB? to look good.? ? ?

Capacitor C5 ( 0.1uF ) is in good shape...Clk2

Check P3 wire crimps look good or use Oscilloscope to verify signals especially pin 14? ?Clk2 at the Raduino

Check main PCD VFO connector for good connections from P3 14? ( Clk2 )

Hope this helps

73

On Wed, Nov 1, 2017 at 12:02 PM, sarnese via Groups.Io <sarnese@...> wrote:
hi
my raduino doesn't work again, checked it with frequenzy counter on the outout signal, the frequenzy go up and down isn't stable.
infact the rtx don't work, to made a test i have used a rf generator into VFO input and the rtx start to give a good power out.
i think there is a problem on my raduino board.
the nano is able to program infact i download the last sketch for it.
do you think is the chip 5351 the problem?
thank you
73 Aurelio IZ8EGM



Re: raduino problem

 

Hi, check its funcionality too

Il 01 nov 2017 18:49, "Ashhar Farhan" <farhanbox@...> ha scritto:
have you connected the tuning pot to it? the frequency will drift without it ?being connected.

- f

On Wed, Nov 1, 2017 at 10:32 PM, sarnese via Groups.Io <sarnese@...> wrote:
hi
my raduino doesn't work again, checked it with frequenzy counter on the outout signal, the frequenzy go up and down isn't stable.
infact the rtx don't work, to made a test i have used a rf generator into VFO input and the rtx start to give a good power out.
i think there is a problem on my raduino board.
the nano is able to program infact i download the last sketch for it.
do you think is the chip 5351 the problem?
thank you
73 Aurelio IZ8EGM



Re: raduino problem

 

have you connected the tuning pot to it? the frequency will drift without it ?being connected.

- f

On Wed, Nov 1, 2017 at 10:32 PM, sarnese via Groups.Io <sarnese@...> wrote:
hi
my raduino doesn't work again, checked it with frequenzy counter on the outout signal, the frequenzy go up and down isn't stable.
infact the rtx don't work, to made a test i have used a rf generator into VFO input and the rtx start to give a good power out.
i think there is a problem on my raduino board.
the nano is able to program infact i download the last sketch for it.
do you think is the chip 5351 the problem?
thank you
73 Aurelio IZ8EGM



CW/TUNE BUTTON INSTALLITION

 

I am in the process of setting up a straight key and a tune button. Most of the instructions seem straight forward but I have a couple discrepancy's maybe due to inexperience.
In the tx-rx photo it shows 4k7 inline with a transistor. Do they mean 47k or 4.7k resistor maybe?
And in the sidetone wiring photo it looks like they have a 1k and 47ohm resistor in series with the positive lead of the speaker input on the board am I interpreting it right?


Barrett
KG5SSO


raduino problem

 

hi
my raduino doesn't work again, checked it with frequenzy counter on the outout signal, the frequenzy go up and down isn't stable.
infact the rtx don't work, to made a test i have used a rf generator into VFO input and the rtx start to give a good power out.
i think there is a problem on my raduino board.
the nano is able to program infact i download the last sketch for it.
do you think is the chip 5351 the problem?
thank you
73 Aurelio IZ8EGM


Re: Modular BiTX40

 

¿ªÔÆÌåÓý

In the US, I¡¯ve been really happy with OSH Park. Not necessarily the best prices available, but all fab¡¯d in the US and fantastic support.?


-Mark

On Nov 1, 2017, at 9:03 AM, Juan Carlos Berberena Glez <cubanqrp@...> wrote:

Hi
I always have used PCBWell with better deals?
73¡¯²õ
Jc
On Wed, 1 Nov 2017 at 7:22 AM, dvhammer_99 <DaleHammer@...> wrote:

Mike,

??

I just submitted the same gerber files to PCBWay for a quote and they came back with a price of $115 for the 10 boards.? They said that the files were for nine designs and did not qualify for the $5 price.? Any hints on how to get the lower quote?

Thanks.

73,

Dale? K9NN

?

From: [email protected] [mailto:[email protected]] On Behalf Of mikedoty via Groups.Io
Sent: Sunday, October 29, 2017 3:11 PM
To: [email protected]
Subject: Re: [BITX20] Modular BiTX40

?

Good afternoon,
I've had a few emails regarding the modular BiTX build and I probably should clarify a few things.? First, ON6RF has posted his gerber files on the link at that I originally posted - just scroll down to around the middle of page to the 'Files' section.? Since he has placed these in the public domain they are available to anyone that cares to download them.? But, because it is HIS work, I'm not comfortable forwarding the files myself.? I don't know if he follows it but I'm sure that he can keep track of how many downloads have occurred and I'm certain he would be gratified to know that his work is appreciated.? What I have offered is to make my gerber file for the motherboard available and, if I can manage it, I will post it here in the files section in the Modular BiTX folder.? I will also include the pdf files that I created for each of the module showing component placement and values.

As for acquiring the circuit boards, as I stated earlier, I use for production.? Their prices are excellent and the turn-around time is hard to beat.? The cost of the panelized pc board for me was $5.00 for 10 boards with DHL shipping costs of $22.00 for a total of $27.00.? I ordered the boards late on a Monday and DHL delivered the finished boards the following Monday morning.? Their website says boards that measure 100X100 mm or smaller cost $5.00 for 10 boards so whether you order 1 or 10, the cost is the same.? To complete the build you will need 3 boards to have enough bi-directional amp modules so, if you're interested in following thru with building a modular version, you could perhaps join with two other interested parties and split the cost between you.? With 3 boards you will be able to build a complete transceiver and have 2 extra modules for experimentation for every section except the bi-directional amps.? As an example, on my first prototype I built the double balanced mixer as designed and a second one using an ADE-1 to compare the results.? For the record, there was absolutely no noticeable difference between the two.? I also built a 4-crystal filter as designed and an 8-crystal QER filter on a second board for comparison.? There was a definite difference between these two modules.?

I hope this clears up some of the questions and I'm still available via direct email to answer questions specific to my build or class presentation.? I'm currently working on the assembly manual for my class and when finished I will post it also in the files section.
--73-- Mike? --? W0MNE



--


Qrv's, 73's

Mr.Juan Carlos Berberena Glez BSc.
WJ6C ex/CO6BG



¡°If you have a penny and I have a penny and we exchange pennies, you still have one cent and I still have one cent.? But if you have an idea and I have an idea and we exchange ideas, you now have two ideas and I now have two ideas.¡±?


Re: Modular BiTX40

 

Hi
I always have used PCBWell with better deals?
73¡¯²õ
Jc

On Wed, 1 Nov 2017 at 7:22 AM, dvhammer_99 <DaleHammer@...> wrote:

Mike,

??

I just submitted the same gerber files to PCBWay for a quote and they came back with a price of $115 for the 10 boards.? They said that the files were for nine designs and did not qualify for the $5 price.? Any hints on how to get the lower quote?

Thanks.

73,

Dale? K9NN

?

From: [email protected] [mailto:[email protected]] On Behalf Of mikedoty via Groups.Io
Sent: Sunday, October 29, 2017 3:11 PM
To: [email protected]
Subject: Re: [BITX20] Modular BiTX40

?

Good afternoon,
I've had a few emails regarding the modular BiTX build and I probably should clarify a few things.? First, ON6RF has posted his gerber files on the link at Hackaday.com that I originally posted - just scroll down to around the middle of page to the 'Files' section.? Since he has placed these in the public domain they are available to anyone that cares to download them.? But, because it is HIS work, I'm not comfortable forwarding the files myself.? I don't know if he follows it but I'm sure that he can keep track of how many downloads have occurred and I'm certain he would be gratified to know that his work is appreciated.? What I have offered is to make my gerber file for the motherboard available and, if I can manage it, I will post it here in the files section in the Modular BiTX folder.? I will also include the pdf files that I created for each of the module showing component placement and values.

As for acquiring the circuit boards, as I stated earlier, I use PCBWAY.com for production.? Their prices are excellent and the turn-around time is hard to beat.? The cost of the panelized pc board for me was $5.00 for 10 boards with DHL shipping costs of $22.00 for a total of $27.00.? I ordered the boards late on a Monday and DHL delivered the finished boards the following Monday morning.? Their website says boards that measure 100X100 mm or smaller cost $5.00 for 10 boards so whether you order 1 or 10, the cost is the same.? To complete the build you will need 3 boards to have enough bi-directional amp modules so, if you're interested in following thru with building a modular version, you could perhaps join with two other interested parties and split the cost between you.? With 3 boards you will be able to build a complete transceiver and have 2 extra modules for experimentation for every section except the bi-directional amps.? As an example, on my first prototype I built the double balanced mixer as designed and a second one using an ADE-1 to compare the results.? For the record, there was absolutely no noticeable difference between the two.? I also built a 4-crystal filter as designed and an 8-crystal QER filter on a second board for comparison.? There was a definite difference between these two modules.?

I hope this clears up some of the questions and I'm still available via direct email to answer questions specific to my build or class presentation.? I'm currently working on the assembly manual for my class and when finished I will post it also in the files section.
--73-- Mike? --? W0MNE



--


Qrv's, 73's

Mr.Juan Carlos Berberena Glez BSc.
WJ6C ex/CO6BG



¡°If you have a penny and I have a penny and we exchange pennies, you still have one cent and I still have one cent.? But if you have an idea and I have an idea and we exchange ideas, you now have two ideas and I now have two ideas.¡±?


Re: Modular BiTX40

 

¿ªÔÆÌåÓý

Mike,

?

I just submitted the same gerber files to PCBWay for a quote and they came back with a price of $115 for the 10 boards.? They said that the files were for nine designs and did not qualify for the $5 price.? Any hints on how to get the lower quote?

Thanks.

73,

Dale? K9NN

?

From: [email protected] [mailto:[email protected]] On Behalf Of mikedoty via Groups.Io
Sent: Sunday, October 29, 2017 3:11 PM
To: [email protected]
Subject: Re: [BITX20] Modular BiTX40

?

Good afternoon,
I've had a few emails regarding the modular BiTX build and I probably should clarify a few things.? First, ON6RF has posted his gerber files on the link at Hackaday.com that I originally posted - just scroll down to around the middle of page to the 'Files' section.? Since he has placed these in the public domain they are available to anyone that cares to download them.? But, because it is HIS work, I'm not comfortable forwarding the files myself.? I don't know if he follows it but I'm sure that he can keep track of how many downloads have occurred and I'm certain he would be gratified to know that his work is appreciated.? What I have offered is to make my gerber file for the motherboard available and, if I can manage it, I will post it here in the files section in the Modular BiTX folder.? I will also include the pdf files that I created for each of the module showing component placement and values.

As for acquiring the circuit boards, as I stated earlier, I use PCBWAY.com for production.? Their prices are excellent and the turn-around time is hard to beat.? The cost of the panelized pc board for me was $5.00 for 10 boards with DHL shipping costs of $22.00 for a total of $27.00.? I ordered the boards late on a Monday and DHL delivered the finished boards the following Monday morning.? Their website says boards that measure 100X100 mm or smaller cost $5.00 for 10 boards so whether you order 1 or 10, the cost is the same.? To complete the build you will need 3 boards to have enough bi-directional amp modules so, if you're interested in following thru with building a modular version, you could perhaps join with two other interested parties and split the cost between you.? With 3 boards you will be able to build a complete transceiver and have 2 extra modules for experimentation for every section except the bi-directional amps.? As an example, on my first prototype I built the double balanced mixer as designed and a second one using an ADE-1 to compare the results.? For the record, there was absolutely no noticeable difference between the two.? I also built a 4-crystal filter as designed and an 8-crystal QER filter on a second board for comparison.? There was a definite difference between these two modules.?

I hope this clears up some of the questions and I'm still available via direct email to answer questions specific to my build or class presentation.? I'm currently working on the assembly manual for my class and when finished I will post it also in the files section.
--73-- Mike? --? W0MNE




Re: BITx40 build and updates #bitx40help

Vince Vielhaber
 

Seems to me it would be a good use for the group's wiki.

Vince.

Just wondering if there is a single resource that covers all the required
mods and fw updates to optimize this product. Scrolling thru a lot of
posts seems to be a bit drawn out in tyring to sort thru what needs to be
done and the 'gotchas' in the build.
--
AncelB, MIT EE6002
--
Michigan VHF Corp.


Re: Bitx Xtal filters

 

To continue (but probably unnecessary):

Unplug antenna and repeat finger test, there's a click when tapping X4 can. Wind up the volume and X4 is now sensitive (must be at least a further 20dB down). I've not bothered earthing that one.

Cheers all ...


Re: Arduino USB cable extension ???

 

Thank you very much for the information.
Have a good day Ted.


Re: Arduino USB cable extension ???

 

¿ªÔÆÌåÓý

Hi All

If you search Aliexpress for "usb mini usb cable 20 cm" you will see many suitable cables, you need one with a right angle end and the are available in left or right make sure you get the correct one.

Ted

ZL1BQA


On 1/11/17 8:04 PM, F1NQP JanJack wrote:

Hello Phil.
The problem is to find the compatible cable. Not easy to find among the many sellers on the net.
Thank you very much and good day.
73 and good day.


Re: Arduino USB cable extension ???

 

Hello Phil.
The problem is to find the compatible cable. Not easy to find among the many sellers on the net.
Thank you very much and good day.
73 and good day.


Re: Arduino USB cable extension ???

philip yates
 

Yes, I use a short cable to connect to the rear panel from the Arduino, saves taking the case apart
for every update, or rather it will when I finish the build.
I found a cable with a right angled plug, saves wasting space on the front panel.

Phil - G7BZD

On Tue, Oct 31, 2017 at 9:02 PM, F1NQP JanJack <f1nqp@...> wrote:
I found:

/g/BITX20/message/30044