Date   

Re: Setting up a comprehensive station

Evan Hand
 

Gordon,
These are searches outside of the Groups.io site, not the message searches provided in the Groups.io search engine.  I would have thought that would give better results pertinent to the uBiTx.

The other thing to note is that you knew to search for Q90 protection, what if it is just a general search of protection of the radio form nearby transmitters?  Just adding in the knowledge of Q90 is a significant piece of information that can be used to narrow down the search.

As is typical on this board, the main topic as been hijacked to a general back and forth on some other aspect rather than the one the original qestioner was asking to help solve.

I have said enough.  Everyone else is right, I am wrong so I will shutdown.

73
Evan
AC9TU


ESP32 for uBitx v6 #firmware #raduino #ubitxv6 #v6

ramonlh@...
 

Hola, 
estoy trabajando en la sustitución del Arduino Nano del uBitx v6 por un módulo con ESP32. Las principales ventajas que tiene este micro (https://www.espressif.com/en/products/socs/esp32/overview) 
- WiFi
- Más RAM y velocidad
- Permite el uso de ficheros. 
- Mayor número de GPIOs

He partido del firmware original v6.3.1 y tomado parte del código de la versión 2 del firmware CEC (http://www.hamskey.com/2019/04/release-cec-firmware-v1200-for-ubitx.html) 

El único hardware necesario es un módulo ESP32 Dev kit de 2x15 pines (https://github.com/espressif/arduino-esp32/issues/544) y una placa PCB adaptadora para poder insertarlo en lugar del Arduino Nano. El prototipo está construido con una placa perforada y cableada. 

Aplicado al uBitx, tiene las siguientes ventajas:
- La configuración se guarda en un fichero, sin los límites de la EEPROM. 
- Servidor web incluido
- Servidor FTP
- RTC
- Segundo puerto serie. 
- Confuiguracion vía web. 
- Actualización del firmware vía web. 
- Incorporación de nuevas funciones por la mayor velocidad y tamaño de RAM. 
- Varias GPIOs disponibles para otros usos. 

Las funciones básicas ya están disponibles aquí https://github.com/ramonlh/ubitx32

Algunas imágenes :




siento no poder escribirlo en inglés, llegué tarde a las clases en la escuela. 
Ramón 
EA4GZI


Re: Setting up a comprehensive station

Bill Cromwell
 

Hi Evan,

There is never any call for flames in of forum, even the political forums. I know, I know, that doesn't seem to stop some.

The causes are probably not simple and even if they are the solutions won't be.

73,

Bill KU8H

On 4/30/20 5:16 PM, Evan Hand wrote:
All,
I have done multiple searches on Groups.io.  From that empirical data I have surmised that the text of the post is not being searched, only the title and hashtags.  That is not really helpful unless everyone adds hashtags to the message title.  I  think that is too much to ask of the new user, and I do not know how to do so in a reply.  Maybe we need "Potential Elmer" training as well
Until I learn more, I will try to share what I think I know.  I only ask that corrections be respectful and not flaming.
73
Evan
AC9RU
--
bark less - wag more


Re: Setting up a comprehensive station

Gordon Gibby
 

Here’s a search where I didn’t presume knowledge of the fix:  






On Apr 30, 2020, at 17:51, Gordon Gibby via groups.io <docvacuumtubes@...> wrote:

I did a simple Google search, and came up with a whole slew of hits, several of which I wrote myself

<image0.png>



On Apr 30, 2020, at 17:45, Thomas Sharka via groups.io <sharkatw@...> wrote:


Have you tried using the "search sites" ability of Google? For example, "mail.yahoo.com: bitx" (no quotes) will return all hits on Yahoo mail that match bitx.



Sent from Yahoo Mail. Get the app


On Thursday, April 30, 2020, 05:16:41 PM EDT, Evan Hand <elhandjr@...> wrote:


All,

I have done multiple searches on Groups.io.  From that empirical data I have surmised that the text of the post is not being searched, only the title and hashtags.  That is not really helpful unless everyone adds hashtags to the message title.  I  think that is too much to ask of the new user, and I do not know how to do so in a reply.  Maybe we need "Potential Elmer" training as well  

Until I learn more, I will try to share what I think I know.  I only ask that corrections be respectful and not flaming.

73
Evan
AC9RU


Re: Setting up a comprehensive station

Gordon Gibby
 

I did a simple Google search, and came up with a whole slew of hits, several of which I wrote myself




On Apr 30, 2020, at 17:45, Thomas Sharka via groups.io <sharkatw@...> wrote:


Have you tried using the "search sites" ability of Google? For example, "mail.yahoo.com: bitx" (no quotes) will return all hits on Yahoo mail that match bitx.



Sent from Yahoo Mail. Get the app


On Thursday, April 30, 2020, 05:16:41 PM EDT, Evan Hand <elhandjr@...> wrote:


All,

I have done multiple searches on Groups.io.  From that empirical data I have surmised that the text of the post is not being searched, only the title and hashtags.  That is not really helpful unless everyone adds hashtags to the message title.  I  think that is too much to ask of the new user, and I do not know how to do so in a reply.  Maybe we need "Potential Elmer" training as well  

Until I learn more, I will try to share what I think I know.  I only ask that corrections be respectful and not flaming.

73
Evan
AC9RU


Re: Setting up a comprehensive station

brad martin
 

Same here. Just have my supply at 13.8 and never changed it on my v3

On Thu, Apr 30, 2020 at 5:47 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Chris,

I operated that radio on 13.8 volts for a year and it didn't blow up, I'm sure it will be alright.

Joel
N6ALT

--


Re: Setting up a comprehensive station

 

Chris,

I operated that radio on 13.8 volts for a year and it didn't blow up, I'm sure it will be alright.

Joel
N6ALT


Re: Setting up a comprehensive station

Thomas Sharka
 

Have you tried using the "search sites" ability of Google? For example, "mail.yahoo.com: bitx" (no quotes) will return all hits on Yahoo mail that match bitx.



Sent from Yahoo Mail. Get the app


On Thursday, April 30, 2020, 05:16:41 PM EDT, Evan Hand <elhandjr@...> wrote:


All,

I have done multiple searches on Groups.io.  From that empirical data I have surmised that the text of the post is not being searched, only the title and hashtags.  That is not really helpful unless everyone adds hashtags to the message title.  I  think that is too much to ask of the new user, and I do not know how to do so in a reply.  Maybe we need "Potential Elmer" training as well  

Until I learn more, I will try to share what I think I know.  I only ask that corrections be respectful and not flaming.

73
Evan
AC9RU


Re: Setting up a comprehensive station

Evan Hand
 

All,

I have done multiple searches on Groups.io.  From that empirical data I have surmised that the text of the post is not being searched, only the title and hashtags.  That is not really helpful unless everyone adds hashtags to the message title.  I  think that is too much to ask of the new user, and I do not know how to do so in a reply.  Maybe we need "Potential Elmer" training as well  

Until I learn more, I will try to share what I think I know.  I only ask that corrections be respectful and not flaming.

73
Evan
AC9RU


Re: Setting up a comprehensive station

Christopher Miller
 

Gordon,

Knowing that this would come up I searched using the tools available and it didn’t work out. I’m getting a masters in cyber security so it’s not like I didn’t try. 

Chris 


#v6 #v6

bilger.boyd@...
 

Built a V6. Worked well at first. After about 1 hour, while listening,
Resister R82 in emitter lead of 2N3904 failed. Section 1E of schematic.
Trouble shooting? suggestions please.
Boyd W9NUQ


Re: #ubitxv6 #ubitxv6

alfred.s@...
 

Thanks, I will try to figure out the measures from there. Thanks for the link! 


Re: Setting up a comprehensive station

Robert D. Bowers
 

I do remember - I started driving in the early 70s, and one of the ones I learned to drive on was an old fifties GMC Coca-Cola truck. The headlights were wired so anytime the engine was running, they were on - for that very reason.  (It was... interesting... to drive - three speed transaxle as I remember, plus 4 on the floor - and the synchromesh didn't work, if it had it in the first place.  It took 5 minutes to get to 50 mph when fully loaded, double-clutching all the way!)

I also used to have a couple of old inverter-driven power supplies for a couple of tube radios I once owned (back in the early 80s) - one with transistors, but the other with a buzzer.  They were really rugged when it came to supply voltages!  Most people today have never even heard of such a thing.  (If it wasn't ruined, I also think I still have a rotary inverter - motor-generator type.)  Talk about creative ways to go mobile!

As far as a BitX goes... they do make buck/boost power supply modules that put out a few amps (adequate for the radio) - and I've seen ones that were adjustable.  One I looked at (in a surplus store) could handle (as I remember) up to 60 volts or as low as 9, and put out a steady 13.4 volts - and a nice clean output at that. For a unreliable charging system, that would be the way to go!

(Such a device wouldn't likely be that useful on a home power supply - they're usually well regulated and filtered!)

On 4/30/20 11:44 AM, Bill Cromwell wrote:
Hi Bob,

I don't know how far back you go but before solid state electronic regulation was introduced in automotive systems the charging voltage was commonly as high as 15 volts. Batteries and light bulbs start showing some stress at that point. Drivers would operate the headlights during day time, not for added safety, but to draw that charging voltage down to more conservative levels.

73,


Re: Setting up a comprehensive station

Dave New, N8SBE
 

Don't know if you've ever been 'jumped' by a AAA truck, but it is common for them use 24V (!) to jump a dead vehicle.  It is good practice to make sure any sensitive electronics (i.e. 'commercial' radios, chargers, etc) are unplugged before your vehicle is subjected to that kind of abuse.

As far as the vehicle electronics go, they are typically designed for 50V 'load dump' voltage, which can happen if the main ground lead floats, or the vehicle battery is disconnected while the engine is running.

What I don't understand is why commercial radio manufacturers tell everyone that if they exceed 14-16V or so, their radio may blow up.  If it is designed as a mobile radio, that is just criminal.

73,

-- DaveN

-------- Original Message --------
Subject: Re: [BITX20] Setting up a comprehensive station
From: "Bill Cromwell" <wrcromwell@...>
Date: Thu, April 30, 2020 11:44 am
To: BITX20@groups.io

Hi Bob,

I don't know how far back you go but before solid state electronic
regulation was introduced in automotive systems the charging voltage was
commonly as high as 15 volts. Batteries and light bulbs start showing
some stress at that point. Drivers would operate the headlights during
day time, not for added safety, but to draw that charging voltage down
to more conservative levels.

73,

Bill KU8H

On 4/30/20 11:26 AM, Robert D. Bowers wrote:
> Regarding setting up the station - if the radio is built for "12 volts"
> - only an _incompetent_ designer would make it so that the incoming
> voltage is absolutely no more than 10% above that voltage and wouldn't
> provide an adequate safety factor.  As a lot of people already know, 12v
> is a generic term for a lead-acid battery with a specific number of
> cells - the 'resting' voltage will be above 12.8 volts depending on the
> charge state, and the charging voltage above 13.2 (usually 13.4-13.8 -
> I've seen 14 volts but that's a bit high IMO).  Also the difference
> between 4 watts out and 5 watts out will not be detectable to a listener
> - and the range difference isn't much.  To be barely noticeable to a
> listener, the power would have to be at least doubled (3db gain).
>
> Conditions are far more important than station wattage out.  (A decent
> antenna is also critical - the better the antenna, the better you'll
> 'get out' and 'hear'.)
>
> As far as a BitX radio - I've run mine on 13.4 quite often, and my
> portable BitX40 station has a 12v lead-acid (sealed type) which varies
> from 12.8 to 13.4 depending on the charge state - also no problems.
> I've had one running in the van with a charging voltage over 14 volts -
> I didn't like it (battery was going bad), but again no problems.  (Too
> much ignition noise in the van to use a BitX there - long story.)  A
> commercially built rig from a 'big-name' company should be even more
> tolerant of voltage - although getting below 12v can cause real problems
> and usually isn't recommended, unless they specifically designed the
> radio to have a wide voltage range!
>
> The big things to be careful out is a proper match to the antenna (not
> for more efficient transfer of energy as much as a mismatch will stress
> the finals), the radio is properly adjusted, and the conditions are at
> least moderate.  I'd also add good air movement around the radio -
> keeping it cool.
>
> Enjoy your station!
>
> Bob
> N4FBZ
>
>
> On 4/29/20 2:52 AM, Christopher Miller wrote:
>> Ok, great
>>
>> I asked once before and got the feeling I needed to mod the bitx. If I
>> can just use nominal 12 volts I will and get more power. I have a heat
>> sink so I may install that but I have zero desire to do any mods until
>> I get both antennas tuned and up with the 2 meter rig ready to go for
>> the emergency event Pima county has coming up. I’ll try it now and let
>> you guys know if my raduino smokes.
>>
>> Chris
>
>

--
bark less - wag more




Re: VU2SPF - TFT_TouchScreen_for_uBitx -- CAT, Split, UP/Down Scan, V2.9BU Released with New User Manual

Joe
 

Yes it will plug into uno and atmega2560



On Thu, Apr 30, 2020, 1:20 PM Jack, W8TEE via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
If the display shown at the bottom of the post is the ATmega2560 display, a dollar to a doughnut it will plug directly into an Uno.

Jack, W8TEE

On Thursday, April 30, 2020, 11:11:14 AM EDT, Joe <joeman2116@...> wrote:


The display as Jack mention is not the type used for our project 
The tft displays we use plug directly into the atmega 2560

See picture of display rear:

Joe VE1BWV 


On Thu, Apr 30, 2020, 11:06 AM Jack, W8TEE via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Pat:

The display is a "plug-in" for an Arduino Uno. Looking at the back, I don't see the control lines for a touch screen device. Do you get output when you run a sample program?

Jack, W8TEE

On Thursday, April 30, 2020, 12:28:58 AM EDT, Patrick Pugh Sawian via groups.io <patrick_pugh2000=yahoo.com@groups.io> wrote:


HI Jack and Joe,

Thanks a ton for your prompt replies. The MCU friend TFT I used is the 3.2 inch OPen smart based on HX8352B. The libraries I used are attached with this email along with photos of the display used.

Am eagerly awaiting your reply.

73es
Pat
VU2OGA


On Thursday, April 30, 2020, 12:14:08 AM GMT+5:30, Joe <joeman2116@...> wrote:


You need to select what chipset is on your tft.
The default maybe not be compatible with your chipset.

If you dont know which one you are using  use mcu friend test examples to find it and screen and touch info.
In the arduino code in user settings
You can select one of several chipsets
In my case I use a elego tft from amazon
So I select it in the code otherwise I get no touch screen.



Joe
VE1BWV

On Wed, Apr 29, 2020, 2:00 PM Patrick Pugh Sawian via groups.io <patrick_pugh2000=yahoo.com@groups.io> wrote:
Hi 

I uploaded the sketch to the 2560 mega with the mcufriend 3.2 inch using 3.20pu version and the new 5.1version software by VU2SPF but the touchcreen does not work. Please help.

73ees,
Pat
VU2 OGA

--
Jack, W8TEE

--
Jack, W8TEE


Re: search engines on groups.io - was "Setting up a comprehensive station - newbie repeats"

Jack, W8TEE
 


I have found that the domain you search from can have a big impact on the results of a search

Absolutely correct. I quit using Google about a year ago, switching to DuckDuckGo instead. I can't see that I'm missing a thing, other than Google's filtering the responses to suit their view of the world. Also, if you are looking for something where the information is likely to be useful and correct, you eventually learn that some sites are much better than others. For example, if I search for "C pointers to functions" and I see an entry by stackoverflow.com, I'll likely read that before the others, mainly because I like how they answer stuff. Others will likely find other contributors who "fit" their needs better. A little "searching practice" will give you a feel for your preferences.

Jack, W8TEE

On Thursday, April 30, 2020, 11:10:43 AM EDT, Robert D. Bowers <n4fbz@...> wrote:


I too have noticed the problems with search, but it covers just about every search engine.  For instance on Google - I'll look for a specific topic (related to research) - and either get nothing, or hundreds of ads (maybe with information thrown in somewhere - often several pages of search results deep).  I know the information is 'out there' - but sometimes it takes hours to find - and I waste a lot of time trying different combinations and patterns of search terms.  The problem is that search engines today are generally crafted to support ads, not information (unlike the origin of the internet) - and they cater to the lowest common denominator.  Their algorithms don't work very well when dealing with more technical terms or specialized topics - unless they're specifically made to do so.

Off-topic results - doesn't seem to have any impact as far as I've noticed.  Maybe there will be multiple hits on a single thread - but that happens even with a strictly 'on-topic' thread.  (I've also seen that battle cry used to stifle free speech or 'friendly chatting' - even that related to the topic being discussed.  A few times over the years I had that accusation thrown at me - for telling a 'war story' directly related to the topic of the thread or similar.)

A funny thing I noted on the last time I tried to get information (changing an old BitX20 to 10 meters) - I could get more hits on Google than on the groups.io search.  Lots of ads, of course - but a tad more information was found.  I still had to ask the group and did get some useful pointers, but nothing more-or-less cookbook, which would have made the conversion project relaxing rather than stressful.  (The radio is still on the shelf, waiting on funds and that precious commodity - time.)

A better search engine could also eliminate a lot of the "here's some links, start reading - YOU GOTTA LEARN!!!" BS I see a lot, especially in Ham Radio (also other forms of insult thrown at people - especially newbies and people who don't buy the "latest and greatest").  The writers who love those kind of responses don't even begin to realize how offensive and jerk-ish they sound.  (I don't ask them to learn what I have to (which would probably give them splitting headaches!), and it's doubly offensive to someone who has to read the equivalent of two or three technical books a day.  I try to do ham radio to relax, not educate myself - which goes hand in hand with the work I do!)

I have found that the domain you search from can have a big impact on the results of a search (but I haven't tried this with groups.io - maybe I should).  If I use VPN to go through my school for searches, I get less ads (but sometimes less results too).  If I use remote access to my work computer at school... I get a third set of results (but am forced to work with W10 which I despise).  That points to the algorithms used to generate results.  A colleague (programmer) and I chatted about this topic - and he said that the big search engines DO take into account where a search is coming from in the algorithms (IMO they probably throw ads when it's a private system at a residence, regardless of the terms used - trying to convince people to buy things they don't want).  He did also say that their focus was more business-oriented.  I wouldn't be surprised to learn that the search engine at groups.io is based on one of the 'big' ones, like google (I haven't checked).

Maybe some programmer would be interested (if it could be set up with groups.io) in crafting a more specialized search engine for the amateur radio groups?  That could make a huge difference for several groups.

Bob
N4FBZ

On 4/30/20 9:10 AM, Bill Cromwell wrote:
Hi,

I have not tried the search utilities available on groups.io. I have found the search functions of *any* email group like this are severely compromised by off-topic messages. That is not just limited to having posts about baking cookies or weaving baskets in a radio group. The "subject" line gets corrupted when it wanders off the posted "subject" and should really have a new thread with it's own "subject". Some groups are worse about that than others. *All* of them have that 'feature'. It is not an academic library.

I spent hundreds of hours wading through ARRL Handbooks and other *thick* books long, long ago. I let the smoke out of a lot of stuff experimenting. There was no internet. I also did not find an "elmer". Todays newbies have not been on that road. They often do not yet even know what words to use in asking their questions. It follows they won't have a clue what words to put in a search window. It isn't their fault they have to ask the questions. Once upon a time they would be asking the same questions of a local "elmer". Today, some of us are those elmers and we have to do that job online. It is much easier to have a newbie in the shack or shop and show them hands-on how things work. They can see *everything*, hear all the sounds, and even smell the smoke;) That will be rare today. So we just take things as they come.

73,

Bill  KU8H

On 4/30/20 6:54 AM, Evan Hand wrote:
Gordon,

Yes, it has.  The main issue that I have with Groups.io is poor search capability.  There is also a lack of new user introduction that might help as well.  Long time monitors like you and I spend a lot of time rehashing old topics because they are hard to find for a new member.

73
Evan
AC9TU



--
Jack, W8TEE


Re: VU2SPF - TFT_TouchScreen_for_uBitx -- CAT, Split, UP/Down Scan, V2.9BU Released with New User Manual

Jack, W8TEE
 

If the display shown at the bottom of the post is the ATmega2560 display, a dollar to a doughnut it will plug directly into an Uno.

Jack, W8TEE

On Thursday, April 30, 2020, 11:11:14 AM EDT, Joe <joeman2116@...> wrote:


The display as Jack mention is not the type used for our project 
The tft displays we use plug directly into the atmega 2560

See picture of display rear:

Joe VE1BWV 


On Thu, Apr 30, 2020, 11:06 AM Jack, W8TEE via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Pat:

The display is a "plug-in" for an Arduino Uno. Looking at the back, I don't see the control lines for a touch screen device. Do you get output when you run a sample program?

Jack, W8TEE

On Thursday, April 30, 2020, 12:28:58 AM EDT, Patrick Pugh Sawian via groups.io <patrick_pugh2000=yahoo.com@groups.io> wrote:


HI Jack and Joe,

Thanks a ton for your prompt replies. The MCU friend TFT I used is the 3.2 inch OPen smart based on HX8352B. The libraries I used are attached with this email along with photos of the display used.

Am eagerly awaiting your reply.

73es
Pat
VU2OGA


On Thursday, April 30, 2020, 12:14:08 AM GMT+5:30, Joe <joeman2116@...> wrote:


You need to select what chipset is on your tft.
The default maybe not be compatible with your chipset.

If you dont know which one you are using  use mcu friend test examples to find it and screen and touch info.
In the arduino code in user settings
You can select one of several chipsets
In my case I use a elego tft from amazon
So I select it in the code otherwise I get no touch screen.



Joe
VE1BWV

On Wed, Apr 29, 2020, 2:00 PM Patrick Pugh Sawian via groups.io <patrick_pugh2000=yahoo.com@groups.io> wrote:
Hi 

I uploaded the sketch to the 2560 mega with the mcufriend 3.2 inch using 3.20pu version and the new 5.1version software by VU2SPF but the touchcreen does not work. Please help.

73ees,
Pat
VU2 OGA

--
Jack, W8TEE

--
Jack, W8TEE


Re: Setting up a comprehensive station

Bill Cromwell
 

Hi Bob,

I don't know how far back you go but before solid state electronic regulation was introduced in automotive systems the charging voltage was commonly as high as 15 volts. Batteries and light bulbs start showing some stress at that point. Drivers would operate the headlights during day time, not for added safety, but to draw that charging voltage down to more conservative levels.

73,

Bill KU8H

On 4/30/20 11:26 AM, Robert D. Bowers wrote:
Regarding setting up the station - if the radio is built for "12 volts" - only an _incompetent_ designer would make it so that the incoming voltage is absolutely no more than 10% above that voltage and wouldn't provide an adequate safety factor.  As a lot of people already know, 12v is a generic term for a lead-acid battery with a specific number of cells - the 'resting' voltage will be above 12.8 volts depending on the charge state, and the charging voltage above 13.2 (usually 13.4-13.8 - I've seen 14 volts but that's a bit high IMO).  Also the difference between 4 watts out and 5 watts out will not be detectable to a listener - and the range difference isn't much.  To be barely noticeable to a listener, the power would have to be at least doubled (3db gain).
Conditions are far more important than station wattage out.  (A decent antenna is also critical - the better the antenna, the better you'll 'get out' and 'hear'.)
As far as a BitX radio - I've run mine on 13.4 quite often, and my portable BitX40 station has a 12v lead-acid (sealed type) which varies from 12.8 to 13.4 depending on the charge state - also no problems. I've had one running in the van with a charging voltage over 14 volts - I didn't like it (battery was going bad), but again no problems.  (Too much ignition noise in the van to use a BitX there - long story.)  A commercially built rig from a 'big-name' company should be even more tolerant of voltage - although getting below 12v can cause real problems and usually isn't recommended, unless they specifically designed the radio to have a wide voltage range!
The big things to be careful out is a proper match to the antenna (not for more efficient transfer of energy as much as a mismatch will stress the finals), the radio is properly adjusted, and the conditions are at least moderate.  I'd also add good air movement around the radio - keeping it cool.
Enjoy your station!
Bob
N4FBZ
On 4/29/20 2:52 AM, Christopher Miller wrote:
Ok, great

I asked once before and got the feeling I needed to mod the bitx. If I can just use nominal 12 volts I will and get more power. I have a heat sink so I may install that but I have zero desire to do any mods until I get both antennas tuned and up with the 2 meter rig ready to go for the emergency event Pima county has coming up. I’ll try it now and let you guys know if my raduino smokes.

Chris
--
bark less - wag more


Re: search engines on groups.io - was "Setting up a comprehensive station - newbie repeats"

Bill Cromwell
 

Hi Bob,

You have expanded nicely on what I said. People, especially newbies, wouldn't be asking questions here if they already knew the answer or could find with search:)

A comment (off topic) at the end of a post in another list netted me a nice private exchange with another musician on the other side of the continent :)


73,

Bill KU8H

On 4/30/20 11:10 AM, Robert D. Bowers wrote:
I too have noticed the problems with search, but it covers just about every search engine.  For instance on Google - I'll look for a specific topic (related to research) - and either get nothing, or hundreds of ads (maybe with information thrown in somewhere - often several pages of search results deep).  I know the information is 'out there' - but sometimes it takes hours to find - and I waste a lot of time trying different combinations and patterns of search terms.  The problem is that search engines today are generally crafted to support ads, not information (unlike the origin of the internet) - and they cater to the lowest common denominator.  Their algorithms don't work very well when dealing with more technical terms or specialized topics - unless they're specifically made to do so.
Off-topic results - doesn't seem to have any impact as far as I've noticed.  Maybe there will be multiple hits on a single thread - but that happens even with a strictly 'on-topic' thread. /(I've also seen that battle cry used to stifle free speech or 'friendly chatting' - even that related to the topic being discussed.  A few times over the years I had that accusation thrown at me - for telling a 'war story' directly related to the topic of the thread or similar.)/
A funny thing I noted on the last time I tried to get information (changing an old BitX20 to 10 meters) - I could get more hits on Google than on the groups.io search.  Lots of ads, of course - but a tad more information was found.  I still had to ask the group and did get some useful pointers, but nothing more-or-less cookbook, which would have made the conversion project relaxing rather than stressful.  (The radio is still on the shelf, waiting on funds and that precious commodity - time.)
A better search engine could also eliminate a lot of the "here's some links, start reading - YOU GOTTA LEARN!!!" BS I see a lot, especially in Ham Radio (also other forms of insult thrown at people - especially newbies and people who don't buy the "latest and greatest").  The writers who love those kind of responses don't even begin to realize how offensive and jerk-ish they sound. /(I don't ask them to learn what I have to (which would probably give them splitting headaches!), and it's doubly offensive to someone who has to read the equivalent of two or three technical books a day.  I try to do ham radio to relax, not educate myself - which goes hand in hand with the work I do!)/
_I have found that the domain you search from can have a big impact on the results of a search_ (but I haven't tried this with groups.io - maybe I should).  If I use VPN to go through my school for searches, I get less ads (but sometimes less results too).  If I use remote access to my work computer at school... I get a third set of results (but am forced to work with W10 which I despise).  That points to the algorithms used to generate results. A colleague (programmer) and I chatted about this topic - and he said that the big search engines DO take into account where a search is coming from in the algorithms (IMO they probably throw ads when it's a private system at a residence, regardless of the terms used - trying to convince people to buy things they don't want).  He did also say that their focus was more business-oriented.  I wouldn't be surprised to learn that the search engine at groups.io is based on one of the 'big' ones, like google (I haven't checked).
Maybe some programmer would be interested (if it could be set up with groups.io) in crafting a more specialized search engine for the amateur radio groups?  That could make a huge difference for several groups.
Bob
N4FBZ
On 4/30/20 9:10 AM, Bill Cromwell wrote:
Hi,

I have not tried the search utilities available on groups.io. I have found the search functions of *any* email group like this are severely compromised by off-topic messages. That is not just limited to having posts about baking cookies or weaving baskets in a radio group. The "subject" line gets corrupted when it wanders off the posted "subject" and should really have a new thread with it's own "subject". Some groups are worse about that than others. *All* of them have that 'feature'. It is not an academic library.

I spent hundreds of hours wading through ARRL Handbooks and other *thick* books long, long ago. I let the smoke out of a lot of stuff experimenting. There was no internet. I also did not find an "elmer". Todays newbies have not been on that road. They often do not yet even know what words to use in asking their questions. It follows they won't have a clue what words to put in a search window. It isn't their fault they have to ask the questions. Once upon a time they would be asking the same questions of a local "elmer". Today, some of us are those elmers and we have to do that job online. It is much easier to have a newbie in the shack or shop and show them hands-on how things work. They can see *everything*, hear all the sounds, and even smell the smoke;) That will be rare today. So we just take things as they come.

73,

Bill  KU8H

On 4/30/20 6:54 AM, Evan Hand wrote:
Gordon,

Yes, it has.  The main issue that I have with Groups.io is poor search capability.  There is also a lack of new user introduction that might help as well.  Long time monitors like you and I spend a lot of time rehashing old topics because they are hard to find for a new member.

73
Evan
AC9TU
--
bark less - wag more


Re: Setting up a comprehensive station

Robert D. Bowers
 

Regarding setting up the station - if the radio is built for "12 volts" - only an incompetent designer would make it so that the incoming voltage is absolutely no more than 10% above that voltage and wouldn't provide an adequate safety factor.  As a lot of people already know, 12v is a generic term for a lead-acid battery with a specific number of cells - the 'resting' voltage will be above 12.8 volts depending on the charge state, and the charging voltage above 13.2 (usually 13.4-13.8 - I've seen 14 volts but that's a bit high IMO).  Also the difference between 4 watts out and 5 watts out will not be detectable to a listener - and the range difference isn't much.  To be barely noticeable to a listener, the power would have to be at least doubled (3db gain).

Conditions are far more important than station wattage out.  (A decent antenna is also critical - the better the antenna, the better you'll 'get out' and 'hear'.)

As far as a BitX radio - I've run mine on 13.4 quite often, and my portable BitX40 station has a 12v lead-acid (sealed type) which varies from 12.8 to 13.4 depending on the charge state - also no problems.  I've had one running in the van with a charging voltage over 14 volts - I didn't like it (battery was going bad), but again no problems.  (Too much ignition noise in the van to use a BitX there - long story.)  A commercially built rig from a 'big-name' company should be even more tolerant of voltage - although getting below 12v can cause real problems and usually isn't recommended, unless they specifically designed the radio to have a wide voltage range!

The big things to be careful out is a proper match to the antenna (not for more efficient transfer of energy as much as a mismatch will stress the finals), the radio is properly adjusted, and the conditions are at least moderate.  I'd also add good air movement around the radio - keeping it cool. 

Enjoy your station!

Bob
N4FBZ


On 4/29/20 2:52 AM, Christopher Miller wrote:
Ok, great

I asked once before and got the feeling I needed to mod the bitx. If I can just use nominal 12 volts I will and get more power. I have a heat sink so I may install that but I have zero desire to do any mods until I get both antennas tuned and up with the 2 meter rig ready to go for the emergency event Pima county has coming up. I’ll try it now and let you guys know if my raduino smokes.

Chris

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