Date   
Re: uBitx delivery time

Marc Jones
 

I'm still waiting on mine, Ordered around the same time .


Regards

On Wed, 3 Jan 2018 at 12:40, mike@...
<mike@...> wrote:
Hi All

Ordered 11/12
Notified its on its way 22/12
Hyderabad 28/12
Mumbai 29/12
Delivered UK 3/1

73
Mike
G0CVZ

W0EB's Keying Adapter

John Seager <jseager2009@...>
 

I had a problem keying my uBITX. Fine on the first 2 or 3 key strokes
with the straight key, then missed characters. Yesterday I built up Jim's 
Keying Adapter (just one section of 2 mosfets, 2 caps  2 resistors and 
a diode). Now the keying is perfect at any speed. Tnx Jim.
73  John G0UCP

Re: uBitx delivery time

 

Congrats Mike,

Now the fun starts.. smell of melting solder and burnt finger tips.. heh heh!

Happy new year!
Raj

At 03-01-2018, you wrote:
Hi All

Ordered 11/12
Notified its on its way 22/12
Hyderabad 28/12
Mumbai 29/12
Delivered UK 3/1

73
Mike
G0CVZ

Re: W0EB's Keying Adapter

Jim Sheldon
 

You're welcome John, glad it helped at least one user.   BTW, I've abandoned the other 2 sections as even though they help, they keyer code using the ADC on the A6 line just isn't refined enough.  It is very difficult to send good CW with paddles using this so I just implemented the standard 4.7K Pullup to +5 on A6 and added the little 2 MOSFET switch.  This way I can plug in any type key I want, hand, bug or external keyer which I have.  Little piece of perf-board and it fits inside the uBITX hanging right off the key jack.  It draws so little current you can power it off the +5 line from the Raduino if you like but I pulled the +12 right off the on/off switch which is also close in my version of the uBITX.  

Jim

------ Original Message ------
From: "John Seager" <jseager2009@...>
Sent: 1/3/2018 6:47:49 AM
Subject: [BITX20] W0EB's Keying Adapter

I had a problem keying my uBITX. Fine on the first 2 or 3 key strokes
with the straight key, then missed characters. Yesterday I built up Jim's 
Keying Adapter (just one section of 2 mosfets, 2 caps  2 resistors and 
a diode). Now the keying is perfect at any speed. Tnx Jim.
73  John G0UCP

Re: uBitx AGC mod

ON7HC
 

Hi Martin,

Please read #32103 + 14 related messages.

It's a AGC developed by Jim, ND6P.  I build it some time ago and it's working like a charm !
The AGC is audio derived, but attenuates the RF input, using pin diodes. I've used it on my Bitx40 build. The AGC acts like in a commercially build radio :)
Could be interesting ...

Herman - ON7HC

Re: W0EB's Keying Adapter

Claudius Karst <claudiuskarst@...>
 

Hello from germany, I also habe problems using a paddle. I habe adjusted the "two" channels with variable resitors and can messure the correct voltage. But the arduino Software produces a "dit" when it switches to transmit -mode instead oft the 'dah" carracter . i am interrested to your mod. Do jou habe a Schema? 
vy 73 de DL1CKT, Claudius


Am 03.01.2018 14:01 schrieb "Jim Sheldon" <w0eb@...>:

You're welcome John, glad it helped at least one user.   BTW, I've abandoned the other 2 sections as even though they help, they keyer code using the ADC on the A6 line just isn't refined enough.  It is very difficult to send good CW with paddles using this so I just implemented the standard 4.7K Pullup to +5 on A6 and added the little 2 MOSFET switch.  This way I can plug in any type key I want, hand, bug or external keyer which I have.  Little piece of perf-board and it fits inside the uBITX hanging right off the key jack.  It draws so little current you can power it off the +5 line from the Raduino if you like but I pulled the +12 right off the on/off switch which is also close in my version of the uBITX.  

Jim

------ Original Message ------
From: "John Seager" <jseager2009@...>
Sent: 1/3/2018 6:47:49 AM
Subject: [BITX20] W0EB's Keying Adapter

I had a problem keying my uBITX. Fine on the first 2 or 3 key strokes
with the straight key, then missed characters. Yesterday I built up Jim's 
Keying Adapter (just one section of 2 mosfets, 2 caps  2 resistors and 
a diode). Now the keying is perfect at any speed. Tnx Jim.
73  John G0UCP


Re: W0EB's Keying Adapter

Jim Sheldon
 

Hallo Claudius, bitte lies meinen Beitrag # 37057, der Schaltplan steht dort zum Download bereit.

Jim, W0EB

Re: BCI filter question.

K9HZ <bill@...>
 

If you search the QST archives for his call you will find two articles by him.  One for transmitting filters and one for receiving. The receiving filter document is the one you want.  These are the most common low pass/ band pass filters used by hams today.   


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

 

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

 

Owner – Operator

Villa Grand Piton - J68HZ

Soufriere, St. Lucia W.I.

Rent it: www.VillaGrandPiton.com


email:  bill@...

 


On Jan 3, 2018, at 3:35 AM, ohwenzelph via Groups.Io <Ohwenzelph@...> wrote:

 K9HZ
Jan 2   

You can build an excellent W3NQN BC filter for about $5. “

Do do you have details on how?

Re: command line based Arduino IDE

Pavel Milanes Costa <pavelmc@...>
 

Ino project is dead,

Arturo (ano) is an "updated" folk... also dead by now...

I detected that arduino IDE has a command line tool, but that tool is tooooo complicated.

I created a small project I use to ease the use of the arduino IDE command line, only in linux, just for me... but it works...

If you like to take a look it's in GPL3 on github: https://github.com/pavelmc/amake

I use Geany IDE in linux (it works in Windows two), I'm not a fan of the Arduino IDE as an IDE...

73 Pavel CO7WT.


El 26/12/17 a las 14:40, Arv Evans escribió:
This might interest some...

https://github.com/amperka/ino
At present it only works with Linux and OS-X, but maybe later for windows.

Arv  K7HKL


-- 
73 CO7WT, Pavel.

Re: W0EB's Keying Adapter

Claudius Karst <claudiuskarst@...>
 

Ich danke Dir für die schnelle Hilfe. Ich werde mich wieder melden. Tnx u vy73
Claudius

Am 03.01.2018 14:47 schrieb "Jim Sheldon" <w0eb@...>:

Hallo Claudius, bitte lies meinen Beitrag # 37057, der Schaltplan steht dort zum Download bereit.

Jim, W0EB


Re: uBitx AGC mod

chris gress <Chrisg0wfh@...>
 

Looking at that circuit is q4 & q5 have there emitter and collector wrong way round well that's how I see it chris

On 3 Jan 2018 13:02, "ON7HC" <herman.docx@...> wrote:
Hi Martin,

Please read #32103 + 14 related messages.

It's a AGC developed by Jim, ND6P.  I build it some time ago and it's working like a charm !
The AGC is audio derived, but attenuates the RF input, using pin diodes. I've used it on my Bitx40 build. The AGC acts like in a commercially build radio :)
Could be interesting ...

Herman - ON7HC

Mics, speech processor? #ubitx

John AE5X <ae5x@...>
 

Morning all,

I'm curious what mics people are using with their uBITX rigs (the included one or something else) and whether anyone has found outboard speech processors to be beneficial?

Here is a schematic for one I'm considering:
http://www.rason.org/Projects/speech/speech.htm

UbitX Mods & fixes

Art Howard
 

Hello all,
 With all the information that's being disseminated on the UbitX I think it would be real nice if somebody did up a repository into various sections by subject. Such as AGC, tuner, etc. 
 That way people could enter their information into various sections instead of being spread all over the place and very difficult to find with same questions being asked several times etc.
 Maybe they're already is such a thing I don't know. But if there is I would like to know about it.
73
Art
 

Re: Tell me your favorite uBitx mods

Jack, W8TEE
 


From: Mvs Sarma <mvssarma@...>
To: BITX20@groups.io
Sent: Tuesday, January 2, 2018 11:57 PM
Subject: Re: [BITX20] Tell me your favorite uBitx mods

Jack,
  best of 2018 and success in your hobby times.Most members are enjoying your efforts.
 
The ebay at times, depending from where you log, doent' show some item numbers. I wonder whether the seller meant that item to certian countries.
I too did not get the item marke and checked by you.
 Example, here is an item where the seller marks  Brand as MITSUBISHI" selling at 1.49 bucks.

 pleasee whether you can be able to open that.  282593021343
regards
sarma
 vu3zmv



regards
Sarma
 

On Wed, Jan 3, 2018 at 10:05 AM, Mvs Sarma <mvssarma@...> wrote:

You normally find these clauses across the item description.

 Then , one need not buy from that seller.
regards
 sarma
 vu3zmv


Item specifics

Condition:
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Brand:

Unbranded/Generic

other: Lead free / RoHS Compliant Model:

TO-220

MPN:

Does Not Apply

UPC:

Does not apply


regards
Sarma
 

On Wed, Jan 3, 2018 at 10:00 AM, Jack Purdum via Groups.Io <jjpurdum@...> wrote:
I swear it was there not more than 15 minutes ago! Try this one: 282696028874

Jack, W8TEE



From: William R Maxwell <wrmaxwell@...>
To: BITX20@groups.io
Sent: Tuesday, January 2, 2018 11:19 PM

Subject: Re: [BITX20] Tell me your favorite uBitx mods

That eBay number isn't being found Jack. Could you check it please?
Bill, VK7MX

On 3/01/2018 2:41 PM, Jack Purdum via Groups.Io wrote:
I'm adding this to my development µBITX:

Inline image
Check on ebay #172488451918
Jack, W8TEE


From: David Arthur <mumrah@...>
To: BITX20@groups.io
Sent: Tuesday, January 2, 2018 5:03 PM
Subject: Re: [BITX20] Tell me your favorite uBitx mods

A mini usb "breakout" would be nice for uploading new Raduino sketches without opening up the box. Could double as a CAT control interface.

On Tue, Jan 2, 2018 at 4:53 PM K9HZ <bill@...> wrote:
I use the RD15HVF1 exclusively so i don't need to worry about multiple parts.  The gain of both parts is very close and they are pin compatible. 


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
 
Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois
 
Owner – Operator
Villa Grand Piton - J68HZ
Soufriere, St. Lucia W.I.

email:  bill@...
 

On Jan 2, 2018, at 11:09 AM, K5ESS <k5ess.nothdurft@...> wrote:

I would think they are a reliable source also.  Unfortunately they are no-stock on the RD16HHF1.  RD15HVF1-101 may work.  Anyone care to comment?
Mike
K5ESS
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Diver Martin
Sent: Tuesday, January 2, 2018 9:45 AM
To: BITX20@groups.io
Subject: Re: [BITX20] Tell me your favorite uBitx mods
 
My assumption is RFParts is a reliable source.  That's where I've gotten mine.  Given my employment with a semiconductor company that makes (competing) RF parts, I rarely go near ebay.
 
On Tue, Jan 2, 2018 at 7:43 AM, K5ESS <k5ess.nothdurft@...> wrote:
Yes.  This part is particularly prone to fakes.  It would be helpful if folks could post both reliable and unreliable sources for these.
Mike
K5ESS
 
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jerry Gaffke via Groups.Io
Sent: Monday, January 1, 2018 11:23 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Tell me your favorite uBitx mods
 
Careful with those $0.85 RD16HHF-1's
Often some random switcher FET with fresh paint.
Google "fake RD16HHF"

On Mon, Jan 1, 2018 at 08:03 pm, Dave Bottom wrote:
Maybe a shift to Mitsubishi RD16HHF-1 MOSFET is worth a try. ...  They are everywhere from $5 each here in the US to US $0.85 (China) in lots of 10.


 
--
Martin Held - AE7EU
http://ae7eu.com/
------------------------------ ------------------------------ -------------------
If there aren't any questions, then what is there to learn?

--
David K4DBZ
Unofficial bitx chatroom: https://discord.gg/C rHvWFc









Re: Mics, speech processor? #ubitx

ON7HC
 

Hi John,

I'm using this Ebay item : 253088080650  ($2.27).
It is not really a compressor but rather an automatic gain MIC amplifier. It is very sensitive and your sound quality remains clear. You don't have to shout in the microphone to generate some output ... :)
In my Bitx40 it replaces the original MIC amplifier. The AGC function prevents overloading of the TX chain, so your power remains clean and within the limits.
I'm curious wether a real compressor circuit would still be a better solution for this kind of radio.

Herman - ON7HC

Re: UbitX Mods & fixes

Bill Robbins
 

Boy would I second that.   I have been working on many projects in front of the bitx and it will still be several months before I get at it.  I’m sure I will want to revisit many of these issues.

I also want to express my wonder at the level of knowledge and willingness to share by this group.

Bill
WA8CDU

Sent from my iPad

On Jan 3, 2018, at 7:11 AM, Art Howard <k0kuk.vhf@...> wrote:

Hello all,
 With all the information that's being disseminated on the UbitX I think it would be real nice if somebody did up a repository into various sections by subject. Such as AGC, tuner, etc. 
 That way people could enter their information into various sections instead of being spread all over the place and very difficult to find with same questions being asked several times etc.
 Maybe they're already is such a thing I don't know. But if there is I would like to know about it.
73
Art
 

Re: uBitx AGC mod

Diver Martin <diver.martin@...>
 

Herman ON7HC,

Interesting.  Maybe I'll have an AGC-off... my usual PCB vendor is $9.50 for 10x PCB's, but $18 shipping if I want fedex (HK Post $6 if I want to for the slow boat, or $12 for DHL if I want the packaged delivered to me Ace Ventura style...).  I'll look at the schematic a little more closely.  Might be able to use the variable attenuation part as the current IF amp has enough gain as-is in the uBitx... A hybrid of the two perhaps?

Chris:  They look correct to me, both in the original schematic and my version... Emitter towards ground (pin 2 on the SOT23 form of MMBT3904)...

On Wed, Jan 3, 2018 at 5:01 AM, ON7HC <herman.docx@...> wrote:
Hi Martin,

Please read #32103 + 14 related messages.

It's a AGC developed by Jim, ND6P.  I build it some time ago and it's working like a charm !
The AGC is audio derived, but attenuates the RF input, using pin diodes. I've used it on my Bitx40 build. The AGC acts like in a commercially build radio :)
Could be interesting ...

Herman - ON7HC




--
Martin Held - AE7EU
http://ae7eu.com/
-------------------------------------------------------------------------------
If there aren't any questions, then what is there to learn?

Re: UbitX Mods & fixes

Karl Heinz Kremer, K5KHK
 

You can do this in the group's Wiki. If you are viewing this page in your web browser, you should see a navigation area on the left side. The last item is "Wiki" - when you click on that, you can read all existing Wiki pages, add information, and create new pages. For now, there is a placeholder page for all uBITX related information. Please feel free to add any information you find useful to that hierarchy. I would recommend to group information that is related on their own pages (e.g. all troubleshooting tips on one page, all mods linked from one page and so on). 
--
Karl Heinz - K5KHK

Re: Mics, speech processor? #ubitx

Arvo W0VRA
 

A couple of people are looking at an Analog Devices SSM2167 chip on a board.

https://groups.io/g/BITX20/topic/6468223

I'm waiting for mine to come in.

Re: Tell me your favorite uBitx mods

Doug W
 

It would require a new connector or adapter but here is another option if you are better at circles than squares.
https://www.amazon.com/BATIGE-Female-Extension-Motorcycle-Dashboard/dp/B01LYC9NC6



or one like this with an audio jack


Doug   KD9CYF