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Re: New to list
IW4AJR Loris
Hello Rafael,
what kind of "experimental license" do you have?
to work in the frequency bands assigned to the "Radio Amateur Service" (see the ITU assignments) it is "ESSENTIAL" to have a Radio Amateur license and, due to agreements made by IARU with almost all the National Institutions for Communications (see for example here in Italy with the Ministry of Infrastructure), the compliance with the subdivision by type of use (CW, SSB, Digital, etc.) and the respective maximum bandwidth allowed is a legal obligation!
I fervently hope that your experiments are not oriented to occupy the HF with telephone or other "private" digital communication networks, private communications are already "eating" us the UHF and the SHF to allow the allocation of digital networks of nature certainly not experimental.
I do not think that radio amateurs around the world ask for the impossible, but only to be left in peace to enjoy their QSO and their experiments, without being "victims" of commercial purposes that certainly do not care about " human right to happiness "!
Tell us what experiments you want to do!
Greetings IW4AJR Loris "HONOR ROLE" ARI (Italian Radio Association). |
Re: WARNING: Promotional offer
And it's an American venture. That's good. "Oh, say can you 'C'...?" Bob ¡ª KK5R
On Friday, November 20, 2020, 9:36:50 PM EST, Jack, W8TEE via groups.io <jjpurdum@...> wrote:
Hi Bob: The book is a pretty complete introduction to the C programming language, especially as it would be used in a microcontroller environment. Rather than me trying to summarize it, you can go to the Amazon web page: and click on the "Look Inside" banner that is on the book's cover. I would then suggest that you look through the table of contents and you will see what is covered. I even have a chapter on C++, because all of the Arduino (and other) libraries are written in C++. The goal is not to teach C++, rather it's to make it easier for you to use the hundreds of libraries that are available to you. It comes in both eBook (the "Kindle" button) and printed (the "Paperback" button) form, so if you're thinking of one versus the other, click on the appropriate button when ordering. You can then click on the "Add to cart" or "Buy now" button just like any other Amazon product. The narrative is the same for both books. The book has not been out very long, but there are 18 reviews you can read. For reasons I don't understand, it says the book does have one 1-Star review, but when I go to read it, there is no 1-Star review. If you want more reviews, the teaching method is the same as I used for Beginning C for Arduino which has over 90 reviews. If questions remain, just ask. Jack, W8TEE
On Friday, November 20, 2020, 6:21:53 PM EST, Bob Lunsford via groups.io <nocrud222@...> wrote:
Jack, please post a short/brief summary of the book's general features such as what it deals with and the goal of the book. This is for 1) those who would like to see what the book is about (that may have forgotten) and, 2) for the benefit of new people to this forum that may not know what this is about. The title of the book and how to contact Amazon (link) regarding the book would also be appreciated. Amazon probably has a review of the book that may also be very useful. Thanks. Bob ¡ª KK5R
On Friday, November 20, 2020, 10:32:11 AM EST, Jack, W8TEE via groups.io <jjpurdum@...> wrote:
All: I feel badly about the font size error that occurred in my Beginning C for Microcontrollers book, especially since you bought the printed book before it was hardly even reviewed. As it turns out, this error was totally my fault and not KDP's. The new book has increased the font size from 8 to 12-point and I have also added an index, which makes it more usable as a reference. As a result, the page count has increased from 380 to 475 pages. The narrative is virtually unchanged, except for the addition of the index. I wrote to KDP to see if I could get the mailing addresses of the people who bought the book. For reasons I can understand, that request was denied. So, here's the deal: 1. Rip off the front cover of the book and three pages from somewhere near the middle of the book. 2. Mail the pages and cover with a check for $10 (or you can use my PayPal account--email me privately) to me at my address as given in QRZ.com. Be sure to include your address where the new book should be sent. In return, I will mail you a new book to replace the one you just destroyed. I need you to post mark your return pages on or before Dec 5, 2020. The offer dies at midnight on Dec. 5th, 2020. On Dec. 6, I will order enough books to replace those who have ordered new ones. It seems to take Amazon about 14 days to get the books to me. Add in the Holiday mail rush, and it may take a little longer. After they arrive, I will try to mail the new book to you as quickly as I can. It's an imperfect solution to a nettlesome problem, but the best I can come up with. For those who think I'm doing this to make money, I can assure you that, by the time I pay my cost for printing the new book (which increased by more than 20%) and the cost to mail it back to you, I will be losing money on the deal. Still, it's the right thing to do. I do appreciate your support. Jack, W8TEE P.S., Read the three pages from the center of the book before you mail them back! -- Jack, W8TEE -- Jack, W8TEE |
Re: WARNING: Promotional offer
Jack, W8TEE
Hi Bob: The book is a pretty complete introduction to the C programming language, especially as it would be used in a microcontroller environment. Rather than me trying to summarize it, you can go to the Amazon web page: and click on the "Look Inside" banner that is on the book's cover. I would then suggest that you look through the table of contents and you will see what is covered. I even have a chapter on C++, because all of the Arduino (and other) libraries are written in C++. The goal is not to teach C++, rather it's to make it easier for you to use the hundreds of libraries that are available to you. It comes in both eBook (the "Kindle" button) and printed (the "Paperback" button) form, so if you're thinking of one versus the other, click on the appropriate button when ordering. You can then click on the "Add to cart" or "Buy now" button just like any other Amazon product. The narrative is the same for both books. The book has not been out very long, but there are 18 reviews you can read. For reasons I don't understand, it says the book does have one 1-Star review, but when I go to read it, there is no 1-Star review. If you want more reviews, the teaching method is the same as I used for Beginning C for Arduino which has over 90 reviews. If questions remain, just ask. Jack, W8TEE
On Friday, November 20, 2020, 6:21:53 PM EST, Bob Lunsford via groups.io <nocrud222@...> wrote:
Jack, please post a short/brief summary of the book's general features such as what it deals with and the goal of the book. This is for 1) those who would like to see what the book is about (that may have forgotten) and, 2) for the benefit of new people to this forum that may not know what this is about. The title of the book and how to contact Amazon (link) regarding the book would also be appreciated. Amazon probably has a review of the book that may also be very useful. Thanks. Bob ¡ª KK5R
On Friday, November 20, 2020, 10:32:11 AM EST, Jack, W8TEE via groups.io <jjpurdum@...> wrote:
All: I feel badly about the font size error that occurred in my Beginning C for Microcontrollers book, especially since you bought the printed book before it was hardly even reviewed. As it turns out, this error was totally my fault and not KDP's. The new book has increased the font size from 8 to 12-point and I have also added an index, which makes it more usable as a reference. As a result, the page count has increased from 380 to 475 pages. The narrative is virtually unchanged, except for the addition of the index. I wrote to KDP to see if I could get the mailing addresses of the people who bought the book. For reasons I can understand, that request was denied. So, here's the deal: 1. Rip off the front cover of the book and three pages from somewhere near the middle of the book. 2. Mail the pages and cover with a check for $10 (or you can use my PayPal account--email me privately) to me at my address as given in QRZ.com. Be sure to include your address where the new book should be sent. In return, I will mail you a new book to replace the one you just destroyed. I need you to post mark your return pages on or before Dec 5, 2020. The offer dies at midnight on Dec. 5th, 2020. On Dec. 6, I will order enough books to replace those who have ordered new ones. It seems to take Amazon about 14 days to get the books to me. Add in the Holiday mail rush, and it may take a little longer. After they arrive, I will try to mail the new book to you as quickly as I can. It's an imperfect solution to a nettlesome problem, but the best I can come up with. For those who think I'm doing this to make money, I can assure you that, by the time I pay my cost for printing the new book (which increased by more than 20%) and the cost to mail it back to you, I will be losing money on the deal. Still, it's the right thing to do. I do appreciate your support. Jack, W8TEE P.S., Read the three pages from the center of the book before you mail them back! -- Jack, W8TEE -- Jack, W8TEE |
TD
Hello??IW4AJR Loris!? I didn't know it was from another time, thanks for sharing it.
Darrell Lee
Advanced Data Systems, Inc. dlee@... 864-230-9626
On November 20, 2020 7:22:27 PM "IW4AJR Loris" <lorisbollina@...> wrote:
Hello Darrell ... |
Some of the old vintage radios and amplifiers are real hunks of steel compared to what we use today but never forget that we won wars with those old relics. Also, some are still used today; when I worked at two Army Depots, some of that old stuff was refurbished and sold/given to foreign allies to use in their military even though we had quit using it here in America. And they were happy to get it. Many of us can remember using the old vintage transmitters for ham radio usage as well as adapting them for antenna tuners, etc. Wartime antenna components are still in operation today by many hams. Will some of the stuff that we buy today endure like that wartime equipment? I wonder but maintenance today is not what it was back then. If some ham's equipment goes sour, the item is often thrown away (or set on a back shelf) and a new one bought and this is often a distinct improvement over what they had used before. Technology has improved but the oldtimers' willingness to repair is not what it was in years past mainly because something 30-40 years old is not going to give us what the new stuff will give us ... so why bother? Back then, though, it was not done for pleasure along, repairs were done because it was necessary to get back on the air. Out with the old and in with the new is the way more in common today. Bob ¡ª KK5R
On Friday, November 20, 2020, 7:39:31 PM EST, IW4AJR Loris <lorisbollina@...> wrote:
There was no standardization in the old magazines! P1 stands for Potentiometer 1 nothing more!
Come on ... a little imagination doesn't hurt !!! ... look at those scoundrels who made electronics 50 years ago went to the moon even if they hadn't standardized and codified the mind ... sometimes the imagination does much more than beautiful presentations!
Cheerful guys! so soon we will remove the trouble ... more than old we do not become ... then even these boring chatter of old fools will end!
73 de IW4AJR Loris
|
IW4AJR Loris
There was no standardization in the old magazines! P1 stands for Potentiometer 1 nothing more!
Come on ... a little imagination doesn't hurt !!! ... look at those scoundrels who made electronics 50 years ago went to the moon even if they hadn't standardized and codified the mind ... sometimes the imagination does much more than beautiful presentations!
Cheerful guys! so soon we will remove the trouble ... more than old we do not become ... then even these boring chatter of old fools will end!
73 de IW4AJR Loris |
IW4AJR Loris
Hello Darrell ...
But what do you want to expect from a magazine from 40 years ago? ... symbols and diagrams were often drawn by hand by inexperienced people then passed to printing without controls ... they were not all electronics professionals! come on ... have a little imagination!
Hello from IW4AJR Loris |
Re: WARNING: Promotional offer
Jack, please post a short/brief summary of the book's general features such as what it deals with and the goal of the book. This is for 1) those who would like to see what the book is about (that may have forgotten) and, 2) for the benefit of new people to this forum that may not know what this is about. The title of the book and how to contact Amazon (link) regarding the book would also be appreciated. Amazon probably has a review of the book that may also be very useful. Thanks. Bob ¡ª KK5R
On Friday, November 20, 2020, 10:32:11 AM EST, Jack, W8TEE via groups.io <jjpurdum@...> wrote:
All: I feel badly about the font size error that occurred in my Beginning C for Microcontrollers book, especially since you bought the printed book before it was hardly even reviewed. As it turns out, this error was totally my fault and not KDP's. The new book has increased the font size from 8 to 12-point and I have also added an index, which makes it more usable as a reference. As a result, the page count has increased from 380 to 475 pages. The narrative is virtually unchanged, except for the addition of the index. I wrote to KDP to see if I could get the mailing addresses of the people who bought the book. For reasons I can understand, that request was denied. So, here's the deal: 1. Rip off the front cover of the book and three pages from somewhere near the middle of the book. 2. Mail the pages and cover with a check for $10 (or you can use my PayPal account--email me privately) to me at my address as given in QRZ.com. Be sure to include your address where the new book should be sent. In return, I will mail you a new book to replace the one you just destroyed. I need you to post mark your return pages on or before Dec 5, 2020. The offer dies at midnight on Dec. 5th, 2020. On Dec. 6, I will order enough books to replace those who have ordered new ones. It seems to take Amazon about 14 days to get the books to me. Add in the Holiday mail rush, and it may take a little longer. After they arrive, I will try to mail the new book to you as quickly as I can. It's an imperfect solution to a nettlesome problem, but the best I can come up with. For those who think I'm doing this to make money, I can assure you that, by the time I pay my cost for printing the new book (which increased by more than 20%) and the cost to mail it back to you, I will be losing money on the deal. Still, it's the right thing to do. I do appreciate your support. Jack, W8TEE P.S., Read the three pages from the center of the book before you mail them back! -- Jack, W8TEE |
This gives more detail re the rheostat... Bob ¡ª KK5R
On Friday, November 20, 2020, 9:56:20 AM EST, Gareth Evans via groups.io <headstone255@...> wrote:
This goes back to the early days of electricity in the mid 19th C, well before J J Thomson discovered the electron. (Not sure which one? of the million trillions he found!? :-)? ? ) It was not then known exactly what was a flow of electricity and it was thought to be a stream of some sort.? Now, I'm not a student of the Classics, and it is 53 years since I did Latin at school, but I believe that Rheus was Ancient Greek for a stream, so Rheostat is a stream controller in much the same way that Thermostat is a temperature controller. Also from that same period of time, a Rheofore is a length of wire! 73 de Gareth G4SDW On Fri, Nov 20, 2020 at 11:38 AM, Bob Lunsford wrote: > >? A settable resistor with two terminals is usually called a rheostat. |
¿ªÔÆÌåÓýAGC systems are not difficult to figure out or implement. ?The math behind a useful RF AGC has been around for at least 9 decades. ?The Hycas system is just a modern restatement of older applications. ?MRM ? On Nov 20, 2020, at 3:44 AM, Ashhar Farhan <farhanbox@...> wrote:
-- ¡_. _._ |
Some apparently thought?that P1 referred?to PI, as in Raspberry Pi, or the? symbol used to represent a mathematical constant.? ?8-) Arv _._ On Fri, Nov 20, 2020 at 6:37 AM Bill Cromwell <wrcromwell@...> wrote: Hi, |
Re: New to list
Rafael Diniz
Thanks Jerry,
toggle quoted message
Show quoted text
Concerning the tx, we are not working on ham bands. We'll use an experimental license (if it works ok without the SSB filter), in order to carry the wideband experiments. Rafael On 11/11/20 10:17 PM, Jerry Gaffke via groups.io wrote:
Rafael, |
Re: Alternative Calibration Procedure uBITx v6
¿ªÔÆÌåÓýI¡¯ve used that method also, that works too. ? It also takes the advantage of taking the measurement down to audio frequencies. ?On Nov 20, 2020, at 15:23, AndyH <awhecker@...> wrote:
|
Re: Alternative Calibration Procedure uBITx v6
I like it!? Simpler than the method I've been using!
toggle quoted message
Show quoted text
I tune to WWV, then hit the WWV Wikipedia page to see what frequency audio tone is broadcast that minute.? I use the WSJT-X waterfall to track the audio tone. 73, Andy On Wed, Nov 18, 2020 at 09:12 PM, Mark Erbaugh wrote:
Following the calibration procedure for my v6, I had trouble zero beating a carrier, so I tried a modified approach that seems to work better for me. With the radio in LSB mode, I tuned 1 kHz above WWV at 5 MHz. WWV's carrier thus creates a 1 kHz tone. I used a program with an audio waterfall (I used FLDIGI) and adjusted the uBITx's tuning calibration until the tone was at 1 kHz. |
Re: SWR meter with second arduino
Gerard,
I am not familiar with the multi-display modes.? I would assume that each has an I2C address that is configured as part of the Nextion programming.? This is guesswork on my part. I would assume that the size of the screen does not matter other than the .tft or .hmi file that is needed to program it.? I am sure that there is only one version of the Nano code to work with the multiple Nextion displays. 73 Evan AC9TU |
Re: SWR meter with second arduino
Evan,
OK Look here, i like colors on the second Nextion An other tft file? My idea is to have main screen on a future 5" nextion, and use the actual 3.2" to sea swr or scan?. Don't know if possible? I was able to sell electronic components on E.. Y to buy the future 5". Lol. I also receive an Automatic antenna tuner in kit of Ukraine (Less 15 days). Model of N7DDC. (Also wiyh my E..Y solds to pay it.!! There is also a small screen. So, some work to do cdt |
WARNING: Promotional offer
Jack, W8TEE
All: I feel badly about the font size error that occurred in my Beginning C for Microcontrollers book, especially since you bought the printed book before it was hardly even reviewed. As it turns out, this error was totally my fault and not KDP's. The new book has increased the font size from 8 to 12-point and I have also added an index, which makes it more usable as a reference. As a result, the page count has increased from 380 to 475 pages. The narrative is virtually unchanged, except for the addition of the index. I wrote to KDP to see if I could get the mailing addresses of the people who bought the book. For reasons I can understand, that request was denied. So, here's the deal: 1. Rip off the front cover of the book and three pages from somewhere near the middle of the book. 2. Mail the pages and cover with a check for $10 (or you can use my PayPal account--email me privately) to me at my address as given in QRZ.com. Be sure to include your address where the new book should be sent. In return, I will mail you a new book to replace the one you just destroyed. I need you to post mark your return pages on or before Dec 5, 2020. The offer dies at midnight on Dec. 5th, 2020. On Dec. 6, I will order enough books to replace those who have ordered new ones. It seems to take Amazon about 14 days to get the books to me. Add in the Holiday mail rush, and it may take a little longer. After they arrive, I will try to mail the new book to you as quickly as I can. It's an imperfect solution to a nettlesome problem, but the best I can come up with. For those who think I'm doing this to make money, I can assure you that, by the time I pay my cost for printing the new book (which increased by more than 20%) and the cost to mail it back to you, I will be losing money on the deal. Still, it's the right thing to do. I do appreciate your support. Jack, W8TEE P.S., Read the three pages from the center of the book before you mail them back! -- Jack, W8TEE |
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