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Re: Visited States On-Line Interactive Map
Chuck Carpenter
Diz, missed the point...DUH... ;-)
Although you did that nicely automated utility for 5 Watters, looks like it would work for any state-collecting activity. Hi Chuck...yes saw that...but... Chuck, W5USJ, ARCI #5422 EM22cv, Rains Co., Texas |
Re: 'Alfa-Bravo-Charlie' = Old? Obsolete?
On our SSB medical network in Africa, some colleagues would not
use "Whiskey" - for abstinence reasons! The NATO alphabet is the still most used and least confusing once learnt. It is also used in business on the phone to confirm names, postcodes, order codes etc. Some changes might well improve intelligibility in the new global world, but less standardisation would create more confusion. Learn it and leave it! Michael 2E0IHW ......................... Not so long ago I copied a a U,S. ham in a DX contest trying to complete a QSO with a European ham.... The U.S ham made several attempts and changed the alphabet each time. The DX finally gave up.... Our phonetic alphabet evolved over a number of decades out of necessity with high stakes and proved to be the most reliable. So it stands today. Anything else is just so much gibberish.--- Diese E-Mail wurde von Avast Antivirus-Software auf Viren gepr¨¹ft. |
Re: 'Alfa-Bravo-Charlie' = Old? Obsolete?
Hi,
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Not so long ago I copied a a U,S. ham in a DX contest trying to complete a QSO with a European ham. I could hear both sides of the QSO loud and clear. But the two stations weren't enjoying reception that good. The U.S. ham was trying to get his callsign across to the European ham using the phonetics. The Dx fellow would then come back with at least one letter wrong to try and confirm. The Yank then tried again but decided to make up some different phonetics for the next attempt. That only further confused the Dx ham. The U.S ham made several attempts and changed the alphabet each time. The DX finally gave up. That U.S. ham sounded like the proverbial monkey and the football. I just shook my head in disbelieve while rolling on the floor laughing. By the way, it turns out there is no such thing as "common spelling". Our phonetic alphabet evolved over a number of decades out of necessity with high stakes and proved to be the most reliable. So it stands today. Anything else is just so much gibberish. 73, Bill KU8H On 7/18/19 9:08 PM, Rod, VA3ON wrote:
I have come to expect NATO standards amount my Military, Pilot and somewhat around our Ham radio friends (except the contesters that insist they know better) :-) --
bark less - wag more |
Re: 'Alfa-Bravo-Charlie' = Old? Obsolete?
I have come to expect NATO standards amount my Military, Pilot and somewhat around our Ham radio friends (except the contesters that insist they know better) :-)
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Where I am surprised from time to time is amount call centre millennials using proper NATO phonetics, and this is absolutely the case in anything adjacent to the Aviation industry, like those booking flights. Warms my heart to see consistency to a standard! /r On Jul 18, 2019, at 19:17, Eric KE6US <eric.csuf@...> wrote:
Interesting article. I haven't worked a voice mode in more than 30 years and barely before that so it doesn't come up on the air for me. But it's a common problem on the cell phone. If I use the ICAO alphabet, it's no better for most people than just spelling the letters. Unexpected words like Tango and Foxtrot cause more confusion than it solves. I tend to use short common names when I can. Tom, Dick, Mary. I usually have better luck if I include the letter "T as in Tom" or they stop listening at Tom and I become Tom to them. I sometimes use common Hispanic names in this area (So Cal). Whatever it takes, but the ICAO versions are generally worthless for me on the phone. I only use it when I'm around other hams or they look at me like I'm an idiot. Eric KE6US On 7/18/2019 1:47 PM, Ronald McConnell wrote: |
Re: Sierra meets FCC-2
The biggest problem with 99.9% of the diy AD98XX designs around is that nobody has read the datasheets properly as far as I can tell.
There is information in most of these datasheets about harmonic and spur suppression, the simplest of which, to considerably reduce even order harmonics, is to use the transformer style output coupling from the DDS chip (This was not in all datasheets, especially some of the earlier ones but is in the later revisions). It also has the benefit of increasing the output level and with properly matched filters applied, reduces the variation in output level seen especially with the formerly cheap '9850 and '9851 modules. Spur reduction (as opposed to harmonic reduction) is a whole different kettle of fish and involves, amongst other things, the use of different Xtal/clock frequencies to drive the DDS chip depending on what output frequency range is desired so as to move the spurs further away for proper filtering. -- Terry VK5tm www.vk5tm.com ( ) |
Re: Sierra meets FCC-2
Bob Macklin
This is interesting!
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I am planning something similar with an AD9850 DDS module. First I am going to try it on a NorCal40. I'm having problems finding components for the NC40. Many are now discontinued so I have to find alternates. So far I am doing OK but it takes time. I except the same with the Sierra. I am getting a set of Sierra boards from Germany. Bob Macklin K5MYJ Seattle, Wa. "Real Radios Glow In The Dark" ----- Original Message -----
From: "Bill Phillips" <billp1048@...> To: <[email protected]> Sent: Thursday, July 18, 2019 2:06 PM Subject: [qrp-tech] Sierra meets FCC-2 Years ago I built most of a Sierra on a FAR Circuits board, substituting an FCC-2 DDS for the oscillator and pre-mixer. I did this to showcase the capabilities of the then-new FCC-2, designed by my friend Bob Okas (now SK). The FCC-2 worked very well on 80 and 40 meters, but the spurs were less than 40 dB down on 30 and 20. I put the project aside mainly because I didn¡¯t know how to tame the second harmonic, only 37 dB down on 40, and worse on 80. Well, 15 years later I¡¯m pretty sure the second harmonic can be tamed within the confines of the plug-in module and I¡¯ll look forward to getting to it one of these days. If anybody has had better luck with second harmonic suppression, please let me know how you did it. The photo shows my Sierra with the FCC-2 inside a brass shield. The boards are stacked to make the front panel more compact. |
Re: 'Alfa-Bravo-Charlie' = Old? Obsolete?
Eric KE6US
Interesting article. I haven't worked a voice mode in more than 30 years and barely before that so it doesn't come up on the air for me. But it's a common problem on the cell phone. If I use the ICAO alphabet, it's no better for most people than just spelling the letters. Unexpected words like Tango and Foxtrot cause more confusion than it solves.
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Show quoted text
I tend to use short common names when I can. Tom, Dick, Mary. I usually have better luck if I include the letter "T as in Tom" or they stop listening at Tom and I become Tom to them. I sometimes use common Hispanic names in this area (So Cal). Whatever it takes, but the ICAO versions are generally worthless for me on the phone. I only use it when I'm around other hams or they look at me like I'm an idiot. Eric KE6US On 7/18/2019 1:47 PM, Ronald McConnell wrote:
It Might Be Time to Update |
Sierra meets FCC-2
Years ago I built most of a Sierra on a FAR Circuits board, substituting an FCC-2 DDS for the oscillator and pre-mixer. I did this to showcase the capabilities of the then-new FCC-2, designed by my friend Bob Okas (now SK). The FCC-2 worked very well on 80 and 40 meters, but the spurs were less than 40 dB down on 30 and 20. I put the project aside mainly because I didn¡¯t know how to tame the second harmonic, only 37 dB down on 40, and worse on 80. Well, 15 years later I¡¯m pretty sure the second harmonic can be tamed within the confines of the plug-in module and I¡¯ll look forward to getting to it one of these days. If anybody has had better luck with second harmonic suppression, please let me know how you did it. The photo shows my Sierra with the FCC-2 inside a brass shield. The boards are stacked to make the front panel more compact.
|
'Alfa-Bravo-Charlie' = Old? Obsolete?
It Might Be Time to Update
the Old 'Alfa-Bravo-Charlie' Spelling Alphabet But it's hard to break old habits. BY DAN NOSOWITZ JULY 12, 2019 "Voice call quality has come down in the last two decades. ... Most importantly, they have dropped the emphasis on voice call quality..." 73, Ron McConnell w2iol |
Re: Visited States On-Line Interactive Map
w8diz
Hi Chuck...yes saw that...but...
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My map is auto generated from WAS Log Entries. Nothing to do but enter your log contacts and the map auto updates with all states in the log. Just change the comma delimited list at teh end of the URL ,OR,TX No hands...no batteries required -Diz On 7/17/19 7:25 AM, Chuck Carpenter wrote:
Here's an on-line interactive map that would work for WAS |
WAS Map
years ago with the intro of the 1W, a group of us were doing a
friendly race for WAS.? I found a US map in SVG (scalable vector graphics) format and I have attached the file. I found that I could use the inkscape graphics program to easily change the color of each state as I worked it (purple in the example attached for 15m) for tracking along with a log book. I then use a program called convert to change from svg to jpg for web pages and other places. Maybe this is what you are looking for.? Or not. As you can see, 15m hasn't been open that much for 1W communications. Yet. FYI chuck, k7qo |
OT(sorta) WAS Programs for the WEB
w8diz
Hi All,
I assume there are quite a few members out there that program PCs in their favorite language. Just thought I'd check with y'all before I go further with this work: Here are two example links: ,OH ,ri,ia,MS,Fl I think you get the idea...If you have a database of QSOs, you can easily generate a WAS MAP. I searched the WEB and did not find anything out there that does that function. Anybody? 73, Diz, W8DIZ |
Re: microscope for electronics use
Mark Schoonover
I use these:
My Scope: Scope HDMI Camera: Hot Air Station: I used to use one of those USB scopes and it worked ok. I didn't like looking at a screen and not down on the board plus it's only 2D. I upgraded to the scope and wow what a difference! I don't even switch to readers any longer, I do all SMT work under the scope. Through hole the good old fashioned way. :) 73! Mark KA6WKE Website: Live Stream: YouTube Live!: Author: 4NEC2 The Definitive Guide EMail List:: [email protected] On Tue, Jul 16, 2019 at 10:43 AM Ray via Groups.Io <rcbuckiii= [email protected]> wrote: I use an AmScope SE400-Z Binocular Stereo Microscope. But I only use it |
Re: ceramic alignment tools
Thanks David, Graham, Terry, Bo, and Alan for your input on purchasing
some ceramic alignment tools. I ended up getting the Hanperal set from Amazon. Each ceramic screwdriver is packaged separately and has the "Yueran" company name on a cardboard backing. However, all screwdrivers came in a plastic bag with Hanperal label, :) 73, Alan, N8WQ On Sun, 07 Jul 2019 05:33:55 -0400, David Wilcox via Groups.Io <Djwilcox01@...> wrote: I bought a set of these a few hears ago and they work quite well. |
Re: microscope for electronics use
I use an AmScope SE400-Z Binocular Stereo Microscope. But I only use it for parts that have a pin to pin spacing of 0.5 mm or less.
Everything else I use either 2.5X or 4.0X reading glasses. The smallest resistors and capacitors I use are 0603 size. I design my PCBs for 1206 parts in most cases. I do tend to use 0603 for bypass capacitors that need to be close to uP supply pins. Ray, AB7HE |
Re: 25 years of the SIERRA - Mainboard, Band Module and critical parts are available
Hi gang,
available on request for your SIERRA retro build are: * 24 vari caps C54 * 17 mainboards * enough band module pcbs and edge connectors on stock Payment via PayPal no problem as Dirk, DH4YM already stated in his mailings. We take orders via email: DH4YM (at) t-online (dot) de So go ahead.... Best 72/3 de DM5TU - sTef ... -.- DM5TU / VY1QRP - DL-QRP-AG *GM* - GQRP #8769 - CalQRP #034 - NAP #1607 |
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