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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. |
Re: Disappointing
This particular thread is all about disappointment, and that's fine with me.
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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. |
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:
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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:
|
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. |
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. |
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
¿ªÔÆÌåÓý1.0.6.1 Just copied from Sourceforge! Ron W7HD
On 03/29/2018 06:34 AM, Ian Lee wrote:
-- 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: 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 |
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 |
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 |
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