¿ªÔÆÌåÓý

Date

Re: Any gotchas replacing the TDA2822 with an LM386? #ubitx #ubitx-help

 

Hi all,

I am sharing a mod I have drawn regarding the replacement of TDA2822. This circuit will be applied after other mods will be experimented on th uBITX.
The audio PA is the TDA2003, a valid amplifier which bandwidth can be modified. My circuit is designed for 3kHz. The TDA circuit, with reduced bandwidth has been tried on some FT920, which have this iC.
I have drawn the audio AGC using the original TDA2822 circuit and disconnecting the audio stage. It is possible that some components values may be changed.
Sorry I have not tried this mod but maybe soome fiddlers may try it.

73

Gian, I7SWX


Re: Placed order #ubitx

 

I'm sorry but I don't have much patience with all the whiners about not getting notifications. For months now people have been posting the notification process and updates. Read before you show your ignorance!

This kit is a hellva bargain and we can all deal with any minor inconvenience!

Roy
WA0YMH


On Thu, Mar 29, 2018, 3:06 AM <yachtdesign@...> wrote:
ok, I`m also still waiting.
I can understand that if parts are missing there would be a delay, what I can not understand is the way of "communication". It should not be any problem to inform buyer about the delay with an e-mail, if someone think that this is too much work, simply with an announcement in this forum or on the web page.
?No information, but collecting money, makes buyers not happy and the risk that they will escalate this behaviour to pay-pal will increase with the risk that the easy possibility to order and pay will be stopped.


Re: Disappointing

 

This particular thread is all about disappointment, and that's fine with me.
James has another thread where he described his problem,
and the last post there suggested a path forward:
? ??/g/BITX20/message/45442
Any further suggestions of what he might try should go to that other thread.

Here's Sunil's May 2014 blog describing the BItx3B in question:
??

Jerry, KE7ER


On Thu, Mar 29, 2018 at 09:26 am, John wrote:
I also received help where to look after I fixed mine after the U1 smoke.
Maybe you will not receive an answer right away but like me it took two days before someone answered.
People responding are all volunteers and I may hope that besides the hobby they have a life too.


Re: Placed order #ubitx

 

Order Jan 30th got DHL shipping notice today (March 29th).

Randy


Re: Making front panel labels

Daniel Conklin
 

I used locktite spray adhesive.? I tried ShoeGoo the first time and the solvent in it melted the enamel on the case and the ink on the photopaper.? It was a real mess!


Re: Placed order #ubitx

 

I ordered mine December 25th and I think it was not until the first week maybe even yhe 2nd week of january to receive the order conformation.?

Received mine as I remebered correctly february 24 via DHL although I didn't pay for it. Shipping from India to South Texas only took 2 days.

John
KG5WJQ


On Thu, Mar 29, 2018, 11:25 Arv Evans <arvid.evans@...> wrote:
Different countries have different rules regarding order fulfillment.? Most do not have
rules regarding notification of order received and order shipment.? In situations where
there are language differences it becomes even more difficult and time consuming to
notify each individual of order status.?

In the US, the postal system requires delivery within 30 days of order placement, but
this only applies to domestic orders placed via the USPS (US Postal System).? It
apparently does not apply to international orders placed via the Internet.?

At present it seems that overcoming the uBITX order backlog is the primary interest.?
Maybe after that order backlog has been satisfied they could look at possibility of further
automating the order taking, status reporting, and delivery process.?
_._


On Thu, Mar 29, 2018 at 2:06 AM, <yachtdesign@...> wrote:
ok, I`m also still waiting.
I can understand that if parts are missing there would be a delay, what I can not understand is the way of "communication". It should not be any problem to inform buyer about the delay with an e-mail, if someone think that this is too much work, simply with an announcement in this forum or on the web page.
?No information, but collecting money, makes buyers not happy and the risk that they will escalate this behaviour to pay-pal will increase with the risk that the easy possibility to order and pay will be stopped.



Re: Disappointing

 

I also received help where to look after I fixed mine after the U1 smoke.
Maybe you will not receive an answer right away but like me it took two days before someone answered.
People responding are all volunteers and I may hope that besides the hobby they have a life too.

John
KG5WJQ

On Thu, Mar 29, 2018, 09:57 Fred Buecker <tfbiii2002@...> wrote:
This forum goes above and beyond to assist other users. It needs to be said though that this is just that, a forum of users. This product we are all endeavoring to enjoy is an open source project that we have been given the opportunity to purchase and assemble. It's not a Kenwood radio with a corporate support center and corporate resources. This is a dream a man had and was able to bring to fruition and provide to us at, in my opinion, is a fraction of it's worth.

I apologise if I am coming across as rude or heavy handed, but there needs to be a reality to one's expectations. The core of this entire project, for me at least, is patience and learning.

I've been a member of this group for months and the level of assistance and teamwork that is apparent here is nothing short of amazing. I had not even ordered a radio until last week, yet reading the threads here about issues and possible solutions and just general hacks and upgrades has been a highlight of my day. (After saying that, I might need to get out more...)

I ask that if you have a problem, be sure you give as much info as you can and be ready to work with others to fix it. This isn't a place where someone will fix it for you. It's a place where you will get all the help you need to fix it yourself.

Here endeth the rant.

-Fred
KC3HMS


On Mar 29, 2018 10:31 AM, "Kerr Smith" <kerrsmithusa@...> wrote:
I have found this forum to be a great place to ask for advise. On numerous occasions I have asked for suggestions on my latest projects that are sometimes only slightly related to Bitx and have always received really great and helpful responses. My last question was about tuned filters and using them with the NE602, I had loads of information suggested to me and this lead me on a path of research that I learned a huge amount from.

I now always ask in this forum first as I have had so much help from people who know a lot about the kinds of things I am interested in.

Looking at your list of posts I think you just need to provide a bit more information (as people replying have suggested) so that other users can see exactly what your set up is and so understand better the issues you are having.

From my experience here I know there will always be someone who understands exactly what you mean even if you do not word it quite right so you just need to give as much information as possible. As I mentioned above I got lots of information about tuned filters even though at the start I did not know they were called this, I just explained in detail what I was trying to do and other users could see what it was I was actually trying to achieve and so offer their advise.



Re: Placed order #ubitx

 

Different countries have different rules regarding order fulfillment.? Most do not have
rules regarding notification of order received and order shipment.? In situations where
there are language differences it becomes even more difficult and time consuming to
notify each individual of order status.?

In the US, the postal system requires delivery within 30 days of order placement, but
this only applies to domestic orders placed via the USPS (US Postal System).? It
apparently does not apply to international orders placed via the Internet.?

At present it seems that overcoming the uBITX order backlog is the primary interest.?
Maybe after that order backlog has been satisfied they could look at possibility of further
automating the order taking, status reporting, and delivery process.?
_._


On Thu, Mar 29, 2018 at 2:06 AM, <yachtdesign@...> wrote:
ok, I`m also still waiting.
I can understand that if parts are missing there would be a delay, what I can not understand is the way of "communication". It should not be any problem to inform buyer about the delay with an e-mail, if someone think that this is too much work, simply with an announcement in this forum or on the web page.
?No information, but collecting money, makes buyers not happy and the risk that they will escalate this behaviour to pay-pal will increase with the risk that the easy possibility to order and pay will be stopped.



Re: Disappointing

Fred Buecker
 

This forum goes above and beyond to assist other users. It needs to be said though that this is just that, a forum of users. This product we are all endeavoring to enjoy is an open source project that we have been given the opportunity to purchase and assemble. It's not a Kenwood radio with a corporate support center and corporate resources. This is a dream a man had and was able to bring to fruition and provide to us at, in my opinion, is a fraction of it's worth.

I apologise if I am coming across as rude or heavy handed, but there needs to be a reality to one's expectations. The core of this entire project, for me at least, is patience and learning.

I've been a member of this group for months and the level of assistance and teamwork that is apparent here is nothing short of amazing. I had not even ordered a radio until last week, yet reading the threads here about issues and possible solutions and just general hacks and upgrades has been a highlight of my day. (After saying that, I might need to get out more...)

I ask that if you have a problem, be sure you give as much info as you can and be ready to work with others to fix it. This isn't a place where someone will fix it for you. It's a place where you will get all the help you need to fix it yourself.

Here endeth the rant.

-Fred
KC3HMS


On Mar 29, 2018 10:31 AM, "Kerr Smith" <kerrsmithusa@...> wrote:
I have found this forum to be a great place to ask for advise. On numerous occasions I have asked for suggestions on my latest projects that are sometimes only slightly related to Bitx and have always received really great and helpful responses. My last question was about tuned filters and using them with the NE602, I had loads of information suggested to me and this lead me on a path of research that I learned a huge amount from.

I now always ask in this forum first as I have had so much help from people who know a lot about the kinds of things I am interested in.

Looking at your list of posts I think you just need to provide a bit more information (as people replying have suggested) so that other users can see exactly what your set up is and so understand better the issues you are having.

From my experience here I know there will always be someone who understands exactly what you mean even if you do not word it quite right so you just need to give as much information as possible. As I mentioned above I got lots of information about tuned filters even though at the start I did not know they were called this, I just explained in detail what I was trying to do and other users could see what it was I was actually trying to achieve and so offer their advise.



Re: #bitx40 #ubitx #bitx40 #ubitx

 

Thanks for all the positive comments on the VIA, Jerry.? Milt Cram, W8NUE (of NUE-PSK Modem fame), has done an outstanding job on the firmware.? Sure is great to have guys like that in the group.
?
73 Kees K5BCQ??


---------- Original Message ----------
From: "Jerry Gaffke via Groups.Io" <jgaffke@...>
To: [email protected]
Subject: Re: [BITX20] #bitx40 #ubitx
Date: Wed, 28 Mar 2018 20:05:44 -0700

Speaking of real hardware, your Vector Impedance Analyzer kit at under $100
is the best deal I know of for anything of the sort.? ($10+4 for a bare board!)
Good to 150mhz, shows complex impedance with sign, plots smith charts, shows swr.
Great as an antenna analyzer, or just checking out a cap or coil across frequency.
Can be used as a two port Vector Network Analyzer.
? ??? ? ? ?(three kits up from the bottom)

A quick suggestion.? Perhaps someday when sales peter out,
sell the board with source or binary blob so we could use it with other ARM processors.
Good enough to just have the code return the complex impedance at each frequency step.
Could have something like a teensy instead of the Raduino on the uBitx, then have the option of?
including your VIA board, adapt it for use with whatever user interface and display we happen to have.

Jerry, KE7ER?


On Wed, Mar 28, 2018 at 06:50 pm, Sandy T wrote:

Real hardware does not lie....I need to do some testing with real hardware which has now arrived from Mouser.


Re: uBITX Firmware CEC Version 1.06 Release (Added WSPR) #ubitx

w7hd.rh
 

¿ªÔÆÌåÓý

Note the missing aruino.h in /tmp/arduino_build_180892/sketchubitx_wspr.cpp.
1.0.6.1 Just copied from Sourceforge!

Ron W7HD

On 03/29/2018 06:34 AM, Ian Lee wrote:
Howard

Below is a link to Version 1.061.


You can download Hex files and sources in the release section of github.


And github now has the latest version (it is correct to have Version 1.061)
I have not yet reflected in the README.md document.
I will fix the document now because you told me. Thank.

I am currently experimenting with various applications with uBITX.

Ian KD8CEC

2018-03-29 20:58 GMT+09:00 DrZ <zehrhj2@...>:
Ian
I may be missing something, but I don't see the link to 1.061 in the announcement on your website.? I can find it on Github, but I always find it hard to be sure I'm getting the latest version since the Github listing is always the same.? In the version history I found associated with the latest file, 1.04 is the last one documented. ?
Thanks
Howard K4LXY


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

-- 
Ron W7HD - NAQCC#7587 OMISS#9898 KX3#6966 LinuxUser#415320
Editor OVARC newsletter


Re: Disappointing

 

I have found this forum to be a great place to ask for advise. On numerous occasions I have asked for suggestions on my latest projects that are sometimes only slightly related to Bitx and have always received really great and helpful responses. My last question was about tuned filters and using them with the NE602, I had loads of information suggested to me and this lead me on a path of research that I learned a huge amount from.

I now always ask in this forum first as I have had so much help from people who know a lot about the kinds of things I am interested in.

Looking at your list of posts I think you just need to provide a bit more information (as people replying have suggested) so that other users can see exactly what your set up is and so understand better the issues you are having.

From my experience here I know there will always be someone who understands exactly what you mean even if you do not word it quite right so you just need to give as much information as possible. As I mentioned above I got lots of information about tuned filters even though at the start I did not know they were called this, I just explained in detail what I was trying to do and other users could see what it was I was actually trying to achieve and so offer their advise.


Re: Disappointing

George W3GWM
 

I haven't received my uBitX yet (ordered Feb 20th and waiting), but from what I've seen there are a lot of people willing to help in this group. I'm confident when mine does arrive and I start working with it, I'll be able to get lots of help if I can explain what my problem is.
--
George W3GWM


Re: Placed order #ubitx

 

Thank you very much! I was beginning to wonder.

Randy


Re: uBITX Firmware CEC Version 1.06 Release (Added WSPR) #ubitx

 

Howard

Below is a link to Version 1.061.


You can download Hex files and sources in the release section of github.


And github now has the latest version (it is correct to have Version 1.061)
I have not yet reflected in the README.md document.
I will fix the document now because you told me. Thank.

I am currently experimenting with various applications with uBITX.

Ian KD8CEC

2018-03-29 20:58 GMT+09:00 DrZ <zehrhj2@...>:

Ian
I may be missing something, but I don't see the link to 1.061 in the announcement on your website.? I can find it on Github, but I always find it hard to be sure I'm getting the latest version since the Github listing is always the same.? In the version history I found associated with the latest file, 1.04 is the last one documented. ?
Thanks
Howard K4LXY



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


Re: #bitx40 #ubitx #bitx40 #ubitx

 

Wow! Keep pushing the development!

Sounds like I may need to get a larger case!

The DSP sounds really interesting.

tim ab0wr

On Thu, 29 Mar 2018 00:01:50 -0500
"K9HZ" <bill@...> wrote:

I¡¯ll publish my circuit and the data shortly, although I doubt many
people will want to build it. I used an AD820 as the integrator/
filter/ RF gain by DC offset, and because it¡¯s so fast, the closed
loop is stable and almost delay free. No pops. Oh BTW you CAN use
two 8367¡¯s in series to get >60db. I have not tried that but may
give it a shot just to see how well it works.



I think we all have different goals with the uBITx. I just want to
use it to experiment to eventually have my own receiver design with
all of the popular bells and whistles, that rivals the best
commercial designs, yet is inexpensive. In that respect, the uBITx
is a great platform to start from and experiment with. I¡¯ve been
able to perfect a plethora of hardware add-ons that are directly
transferrable to my final project. I still have a little bit to do
on my Auto Antenna tuner (and I still promise it will cost $35 or
less), and I am playing with a DSP filter for the receiver that has
an adjustable bandpass, center frequency and notch for $10 (sounds
like and works just like my K3), Uses a Arduino too.





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



Owner - Operator

Big Signal Ranch ¨C K9ZC

Staunton, Illinois



Owner ¨C Operator

Villa Grand Piton ¨C J68HZ

Soufriere, St. Lucia W.I.

Rent it: www.VillaGrandPiton.com <>

Like us on Facebook! <>



Moderator ¨C North American QRO Yahoo Group.



email: <mailto:bill@...> bill@...





From: [email protected] [mailto:[email protected]] On Behalf Of Jerry
Gaffke via Groups.Io Sent: Wednesday, March 28, 2018 9:40 PM
To: [email protected]
Subject: Re: [BITX20] #bitx40 #ubitx



The AD8367 is a nice part.
Can control gain with a Vctrl that is linear in dB.
Has 45dB of dynamic range.
Plus a square law detector.
Would be very nice in some applications, perhaps driving an ADC.

But that 45dB is from -2.5 to +42.5 dB of gain.
Would require major surgery of the uBitx to make use of 42.5 dB of RF
gain, the two BiDi amps have a total of about 32 dB, and that's it
till the audio pre-amp. I suppose you could follow this part with a
40dB attenuator...

Mouser sells it for $10 in my kind of quantities,
though Analog Devices is (was?) fairly easy to get samples from.

Jerry


On Wed, Mar 28, 2018 at 04:52 pm, K9HZ wrote:

Have a look at the AD8367¡­ The circuit shown in the AP section I¡¯ve
built and it works well into the VHF range. Sorry, a whole $6







---
This email has been checked for viruses by AVG.


Re: Any gotchas replacing the TDA2822 with an LM386? #ubitx #ubitx-help

Daniel Conklin
 

I put in a 7805 regulator and it's still very loud, but controllable with a small 4 ohm.? I put an inline volume control cable between the radio and my headphones which helps a lot.?
Dan, W2DLC


Re: Placed order #ubitx

 

I know it annoys some to see order/shipping updates but I haven't seen any in a while and there are still a lot of people out there anxiously awaiting their radios.

I ordered February 1 and got my notification today (March 29) that my radio has been shipped via DHL.


Re: uBITX Firmware CEC Version 1.06 Release (Added WSPR) #ubitx

 

Ian
I may be missing something, but I don't see the link to 1.061 in the announcement on your website. ?I can find it on Github, but I always find it hard to be sure I'm getting the latest version since the Github listing is always the same. ?In the version history I found associated with the latest file, 1.04 is the last one documented. ?
Thanks
Howard K4LXY


Re: Placed order #ubitx

 

Did wishbone_aaa receive this confirmation after requesting it or automatic?

I also find it very unclear and dislike the lack of communication.
A small update on de ordering page about which order date is currently shipping would solve a lot of questions because hfsignals is the only one who nows the exact status.
I like the fact that ubitx.net is estimating but would like to have a more precise status without bothering hfsignals by email.

--
Ad, PE1GIJ