¿ªÔÆÌåÓý

Date

Re: Elon Musk: Should Have 1000 Ventilators Next Week, + 250,000 N95 Masks For Hospitals Tomorrow ? CleanTechnica Exclusive | CleanTechnica

Vince Vielhaber
 

That and we don't need a sub group!

Vince.

On 03/25/2020 11:59 AM, Arv Evans wrote:
Vince

Agreed. Now that the ventilator group has formed and is becoming more
active, there does seem to be less need to keep the topic active on the
BITX20 group.

Arv
_-_


On Tue, Mar 24, 2020, 11:22 PM Vince Vielhaber <vev@...
<mailto:vev@...>> wrote:

Not needed. A group was created for it.

Vince.

On 03/25/2020 01:12 AM, Raj vu2zap wrote:
> There is something call sub groups that has been long ignored Arv.
>
>
> At 25/03/2020, you wrote:
>> Gordon
>>
>> Still thinking about how to manage the "hams working on ventilators"
>> traffic versus
>> the rest of the BITX-20 group discussions.? Wonder if it would work
>> to let the ventilator
>> traffic continue but keep it under a very specific #topic header.?
>> This would allow
>> those who are not interested in ventilating to just mute that
topic so
>> they would
>> never see it again.? Your thoughts...?
>>
>> Arv
>> _._
>>
>>
>> On Mon, Mar 23, 2020 at 10:15 PM Gordon Gibby
>> <docvacuumtubes@... <mailto:docvacuumtubes@...>
<mailto:docvacuumtubes@... <mailto:docvacuumtubes@...>>
> wrote:
>>
>> Thank you Arv.? ? Probably 35 messages have gone out
internal the
>> group working on the ventilator in the last 24 hours alone.? ?
>> Two programmers have written working or nearly working code to
>> improve on the tiny stuff that I wrote; one press release was
>> authorized; a university PIO has come on line, and three
>> manufacturers have stepped up to potentially? assist or
>> manufacture.? ? All of that happened with very little email here
>> (unless I happened to slip up and sned it to the wrong place and
>> if so, I apologize) -- and now we are at the point of moving
>> toward a printed circuit board design and final software.? ?
>> Some had ASKED for updates on this forum.? ? All of this,
>> including frantic efforts to find suitable pressure transducers
>> etc, fervent discussions of legal matters, and safety
concerns and
>> some arguments that were a waste of time...all happened outside
>> this forum (which was appropriate).? ? 97.1 indicates amateur
>> radio is to be a RESERVOIR of trained people....and this in
>> keeping with the outworking of precisely that.? ? Once a
>> sufficient number became involved, there was no further need to
>> discuss on this forum (unless by accident I sent the wrong place,
>> my apologies).
>>
>> THANKS for all who have volunteered their time and expertise, the
>> group who started this has been overwhelmed with offers.
>> Lets hope this does some good.
>>
>> Gordon Gibby KX4Z
>>
>>
>>
>> On Mon, Mar 23, 2020 at 11:49 PM Arv Evans
<arvid.evans@... <mailto:arvid.evans@...>
>> <mailto:arvid.evans@...
<mailto:arvid.evans@...>>> wrote:
>>
>>
>> A recent ARRL news post highlighted the BITX20 group
effort to
>> work up a low cost design for a safe ventilator.? ?
>>
>> These are strange times that might offer an opportunity for
>> hams to "make a difference".?
>>
>> My request is for those not interested in this subject to
mute
>> the topic for the next few days.? Work is ongoing to form a
>> new group to focus directly on this effort.? This will
>> hopefully move the ventilator messages to that venue.? If
>> off-topic posts persists after the new group is functioning,
>> those posts can be moderated and redirected to that group.? ?
>>
>> I would ask those who are setting up a new info and control
>> web site for the ventilator project to post a notification
>> here when their site is up and running.? Once that is
done we
>> can take steps to move ventilator traffic over to that new
>> discussion site.
>>
>> Thanks
>>
>> Arv
>> _-_
>>
>>
>> On Mon, Mar 23, 2020, 8:53 PM Jerry Gaffke via Groups.Io
>> <jgaffke@... <mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>> > wrote:
>>
>> Ken,
>>
>> Your best bet is convince the forum moderator, that would
>> be Arv:
>> ? ? ? /g/BITX20/message/77310
>>
>> I suppose you could check with Farhan, he may still have
>> some pull here:
>> ? ? ? /g/BITX20/message/2
>> ? ? ? /g/BITX20/message/77283
>>
>> Failing the above, perhaps start your own group?
>>
>> Talk about this pandemic will be everywhere that people
>> communicate.
>> If you want to avoid any such discussion, I suggest you
>> pull the plug on?
>> your computer, radio and TV till about this time next
year.
>>
>> Back to the topic:? ?
>> Hopefully, if I need a ventilator, it will be something
>> fully vetted by the FDA and UL and whatever.
>> Hard to imagine Tesla and GM producing enough at
>> sufficiently low cost to satisfy the needs
>> of every African village.? This Nano + SprinklerValve
>> thing may or may not be the answer,
>> but seems an effort well worth supporting.?
>>
>> > My vote is to stay on-topic,
>> I haven't seen a post here about the Bitx20 in
ages.? ;-)
>>
>> Jerry, KE7ER
>>
>>
>> On Mon, Mar 23, 2020 at 05:27 PM, Ken Hansen wrote:
>>
>> Opinions vary, news of Elon Musk's latest exploits
>> have never been covered here before - I see no reason
>> to start now.
>> ?
>> Do we want to start debating the suitability of a
>> first-time medical device maker going from blank
sheet
>> of paper to respirator in a hospital ICU without
*any*
>> meaningful regulatory review in two weeks?
>> ?
>> Typically the goal of international groups such as
>> this one is to remain apolitical and avoid
discussions
>> of topics that only affect one region By staying on
>> topic. (Remember the "CA State is shutting down all
>> repeaters" scare? The "France wants to eliminate the
>> 2m band" scare? In my opinion those discussions
didn't
>> belong here either, thought they were arguably
Amateur
>> Radio-related, unlike the Elon Musk link.) This group
>> has a specific purpose on it's groups.io
<>
>> <> homepage:
>> ?
>> "This group exists for constructors of the various
>> BITX projects, to discuss all aspects of the design
>> and construction including problems, components,
>> modifications and experiences using the rigs."
>> ?
>> Source:? /g/BITX20
>> ?
>> My vote is to stay on-topic, but mine is only one of
>> the 7,833 voices on this reflector. I'll happily
>> reconsider if/when I hear Elon has ordered a
uBitx has
>> had some feedback or improvements on the design.
>> ?
>> Ken, N2VIP
>> ?
>>
>>

--
K8ZW



--
K8ZW


Re: Elon Musk: Should Have 1000 Ventilators Next Week, + 250,000 N95 Masks For Hospitals Tomorrow ? CleanTechnica Exclusive | CleanTechnica

 

Vince

Agreed.? Now that the ventilator group has formed and is becoming more active, there does seem to be less need to keep the topic active on the BITX20 group.??

Arv
_-_


On Tue, Mar 24, 2020, 11:22 PM Vince Vielhaber <vev@...> wrote:
Not needed.? A group was created for it.

Vince.

On 03/25/2020 01:12 AM, Raj vu2zap wrote:
> There is something call sub groups that has been long ignored Arv.
>
>
> At 25/03/2020, you wrote:
>> Gordon
>>
>> Still thinking about how to manage the "hams working on ventilators"
>> traffic versus
>> the rest of the BITX-20 group discussions.?? Wonder if it would work
>> to let the ventilator
>> traffic continue but keep it under a very specific #topic header.?
>> This would allow
>> those who are not interested in ventilating to just mute that topic so
>> they would
>> never see it again.?? Your thoughts...?
>>
>> Arv
>> _._
>>
>>
>> On Mon, Mar 23, 2020 at 10:15 PM Gordon Gibby
>> <docvacuumtubes@... <mailto:docvacuumtubes@...> > wrote:
>>
>>? ? ?Thank you Arv.?? ? Probably 35 messages have gone out internal the
>>? ? ?group working on the ventilator in the last 24 hours alone.?? ?
>>? ? ?Two programmers have written working or nearly working code to
>>? ? ?improve on the tiny stuff that I wrote; one press release was
>>? ? ?authorized; a university PIO has come on line, and three
>>? ? ?manufacturers have stepped up to potentially? assist or
>>? ? ?manufacture.?? ? All of that happened with very little email here
>>? ? ?(unless I happened to slip up and sned it to the wrong place and
>>? ? ?if so, I apologize) -- and now we are at the point of moving
>>? ? ?toward a printed circuit board design and final software.?? ?
>>? ? ?Some had ASKED for updates on this forum.?? ? All of this,
>>? ? ?including frantic efforts to find suitable pressure transducers
>>? ? ?etc, fervent discussions of legal matters, and safety concerns and
>>? ? ?some arguments that were a waste of time...all happened outside
>>? ? ?this forum (which was appropriate).?? ? 97.1 indicates amateur
>>? ? ?radio is to be a RESERVOIR of trained people....and this in
>>? ? ?keeping with the outworking of precisely that.?? ? Once a
>>? ? ?sufficient number became involved, there was no further need to
>>? ? ?discuss on this forum (unless by accident I sent the wrong place,
>>? ? ?my apologies).
>>
>>? ? ?THANKS for all who have volunteered their time and expertise, the
>>? ? ?group who started this has been overwhelmed with offers.
>>? ? ?Lets hope this does some good.
>>
>>? ? ?Gordon Gibby KX4Z
>>
>>
>>
>>? ? ?On Mon, Mar 23, 2020 at 11:49 PM Arv Evans <arvid.evans@...
>>? ? ?<mailto:arvid.evans@...>> wrote:
>>
>>
>>? ? ? ? ?A recent ARRL news post highlighted the BITX20 group effort to
>>? ? ? ? ?work up a low cost design for a safe ventilator.? ?
>>
>>? ? ? ? ?These are strange times that might offer an opportunity for
>>? ? ? ? ?hams to "make a difference".?
>>
>>? ? ? ? ?My request is for those not interested in this subject to mute
>>? ? ? ? ?the topic for the next few days.?? Work is ongoing to form a
>>? ? ? ? ?new group to focus directly on this effort.?? This will
>>? ? ? ? ?hopefully move the ventilator messages to that venue.?? If
>>? ? ? ? ?off-topic posts persists after the new group is functioning,
>>? ? ? ? ?those posts can be moderated and redirected to that group.? ?
>>
>>? ? ? ? ?I would ask those who are setting up a new info and control
>>? ? ? ? ?web site for the ventilator project to post a notification
>>? ? ? ? ?here when their site is up and running.?? Once that is done we
>>? ? ? ? ?can take steps to move ventilator traffic over to that new
>>? ? ? ? ?discussion site.
>>
>>? ? ? ? ?Thanks
>>
>>? ? ? ? ?Arv
>>? ? ? ? ?_-_
>>
>>
>>? ? ? ? ?On Mon, Mar 23, 2020, 8:53 PM Jerry Gaffke via Groups.Io
>>? ? ? ? ?<jgaffke=[email protected] <mailto:[email protected]> > wrote:
>>
>>? ? ? ? ? ? ?Ken,
>>
>>? ? ? ? ? ? ?Your best bet is convince the forum moderator, that would
>>? ? ? ? ? ? ?be Arv:
>>? ? ? ? ? ? ??? ? ? /g/BITX20/message/77310
>>
>>? ? ? ? ? ? ?I suppose you could check with Farhan, he may still have
>>? ? ? ? ? ? ?some pull here:
>>? ? ? ? ? ? ??? ? ? /g/BITX20/message/2
>>? ? ? ? ? ? ??? ? ? /g/BITX20/message/77283
>>
>>? ? ? ? ? ? ?Failing the above, perhaps start your own group?
>>
>>? ? ? ? ? ? ?Talk about this pandemic will be everywhere that people
>>? ? ? ? ? ? ?communicate.
>>? ? ? ? ? ? ?If you want to avoid any such discussion, I suggest you
>>? ? ? ? ? ? ?pull the plug on?
>>? ? ? ? ? ? ?your computer, radio and TV till about this time next year.
>>
>>? ? ? ? ? ? ?Back to the topic:? ?
>>? ? ? ? ? ? ?Hopefully, if I need a ventilator, it will be something
>>? ? ? ? ? ? ?fully vetted by the FDA and UL and whatever.
>>? ? ? ? ? ? ?Hard to imagine Tesla and GM producing enough at
>>? ? ? ? ? ? ?sufficiently low cost to satisfy the needs
>>? ? ? ? ? ? ?of every African village.?? This Nano + SprinklerValve
>>? ? ? ? ? ? ?thing may or may not be the answer,
>>? ? ? ? ? ? ?but seems an effort well worth supporting.?
>>
>>? ? ? ? ? ? ?> My vote is to stay on-topic,
>>? ? ? ? ? ? ?I haven't seen a post here about the Bitx20 in ages.?? ;-)
>>
>>? ? ? ? ? ? ?Jerry, KE7ER
>>
>>
>>? ? ? ? ? ? ?On Mon, Mar 23, 2020 at 05:27 PM, Ken Hansen wrote:
>>
>>? ? ? ? ? ? ? ? ?Opinions vary, news of Elon Musk's latest exploits
>>? ? ? ? ? ? ? ? ?have never been covered here before - I see no reason
>>? ? ? ? ? ? ? ? ?to start now.
>>? ? ? ? ? ? ? ? ??
>>? ? ? ? ? ? ? ? ?Do we want to start debating the suitability of a
>>? ? ? ? ? ? ? ? ?first-time medical device maker going from blank sheet
>>? ? ? ? ? ? ? ? ?of paper to respirator in a hospital ICU without *any*
>>? ? ? ? ? ? ? ? ?meaningful regulatory review in two weeks?
>>? ? ? ? ? ? ? ? ??
>>? ? ? ? ? ? ? ? ?Typically the goal of international groups such as
>>? ? ? ? ? ? ? ? ?this one is to remain apolitical and avoid discussions
>>? ? ? ? ? ? ? ? ?of topics that only affect one region By staying on
>>? ? ? ? ? ? ? ? ?topic. (Remember the "CA State is shutting down all
>>? ? ? ? ? ? ? ? ?repeaters" scare? The "France wants to eliminate the
>>? ? ? ? ? ? ? ? ?2m band" scare? In my opinion those discussions didn't
>>? ? ? ? ? ? ? ? ?belong here either, thought they were arguably Amateur
>>? ? ? ? ? ? ? ? ?Radio-related, unlike the Elon Musk link.) This group
>>? ? ? ? ? ? ? ? ?has a specific purpose on it's
>>? ? ? ? ? ? ? ? ?<> homepage:
>>? ? ? ? ? ? ? ? ??
>>? ? ? ? ? ? ? ? ?"This group exists for constructors of the various
>>? ? ? ? ? ? ? ? ?BITX projects, to discuss all aspects of the design
>>? ? ? ? ? ? ? ? ?and construction including problems, components,
>>? ? ? ? ? ? ? ? ?modifications and experiences using the rigs."
>>? ? ? ? ? ? ? ? ??
>>? ? ? ? ? ? ? ? ?Source:? /g/BITX20
>>? ? ? ? ? ? ? ? ??
>>? ? ? ? ? ? ? ? ?My vote is to stay on-topic, but mine is only one of
>>? ? ? ? ? ? ? ? ?the 7,833 voices on this reflector. I'll happily
>>? ? ? ? ? ? ? ? ?reconsider if/when I hear Elon has ordered a uBitx has
>>? ? ? ? ? ? ? ? ?had some feedback or improvements on the design.
>>? ? ? ? ? ? ? ? ??
>>? ? ? ? ? ? ? ? ?Ken, N2VIP
>>? ? ? ? ? ? ? ? ??
>>
>>? ? ?

--
? ?K8ZW? ? ?




Re: Elon Musk: Should Have 1000 Ventilators Next Week, + 250,000 N95 Masks For Hospitals Tomorrow ? CleanTechnica Exclusive | CleanTechnica

 

Raj

I looked at sub-groups some time ago relative to a different project.? At that time I found some things that I did not like, but maybe I need to take another look in light of the current situation.??

Thanks for the suggestion.

Arv
_-_


On Tue, Mar 24, 2020, 11:13 PM Raj vu2zap <rajendrakumargg@...> wrote:
There is something call sub groups that has been long ignored Arv.


At 25/03/2020, you wrote:
Gordon

Still thinking about how to manage the "hams working on ventilators" traffic versus
the rest of the BITX-20 group discussions.?? Wonder if it would work to let the ventilator
traffic continue but keep it under a very specific #topic header.?? This would allow
those who are not interested in ventilating to just mute that topic so they would
never see it again.?? Your thoughts...?

Arv
_._


On Mon, Mar 23, 2020 at 10:15 PM Gordon Gibby <docvacuumtubes@... > wrote:
Thank you Arv.?? ? Probably 35 messages have gone out internal the group working on the ventilator in the last 24 hours alone.?? ? Two programmers have written working or nearly working code to improve on the tiny stuff that I wrote; one press release was authorized; a university PIO has come on line, and three manufacturers have stepped up to potentially? assist or manufacture.?? ? All of that happened with very little email here (unless I happened to slip up and sned it to the wrong place and if so, I apologize) -- and now we are at the point of moving toward a printed circuit board design and final software.?? ?? Some had ASKED for updates on this forum.?? ? All of this, including frantic efforts to find suitable pressure transducers etc, fervent discussions of legal matters, and safety concerns and some arguments that were a waste of time...all happened outside this forum (which was appropriate).?? ? 97.1 indicates amateur radio is to be a RESERVOIR of trained people....and this in keeping with the outworking of precisely that.?? ? Once a sufficient number became involved, there was no further need to discuss on this forum (unless by accident I sent the wrong place, my apologies).

THANKS for all who have volunteered their time and expertise, the group who started this has been overwhelmed with offers.
Lets hope this does some good.

Gordon Gibby KX4Z



On Mon, Mar 23, 2020 at 11:49 PM Arv Evans <arvid.evans@...> wrote:

A recent ARRL news post highlighted the BITX20 group effort to work up a low cost design for a safe ventilator.? ?

These are strange times that might offer an opportunity for hams to "make a difference".?

My request is for those not interested in this subject to mute the topic for the next few days.?? Work is ongoing to form a new group to focus directly on this effort.?? This will hopefully move the ventilator messages to that venue.?? If off-topic posts persists after the new group is functioning, those posts can be moderated and redirected to that group.? ?

I would ask those who are setting up a new info and control web site for the ventilator project to post a notification here when their site is up and running.?? Once that is done we can take steps to move ventilator traffic over to that new discussion site.

Thanks

Arv
_-_


On Mon, Mar 23, 2020, 8:53 PM Jerry Gaffke via Groups.Io <jgaffke=[email protected] > wrote:
Ken,

Your best bet is convince the forum moderator, that would be Arv:
?? ? ? /g/BITX20/message/77310

I suppose you could check with Farhan, he may still have some pull here:
?? ? ? /g/BITX20/message/2
?? ? ? /g/BITX20/message/77283

Failing the above, perhaps start your own group?

Talk about this pandemic will be everywhere that people communicate.
If you want to avoid any such discussion, I suggest you pull the plug on?
your computer, radio and TV till about this time next year.

Back to the topic:? ?
Hopefully, if I need a ventilator, it will be something fully vetted by the FDA and UL and whatever.
Hard to imagine Tesla and GM producing enough at sufficiently low cost to satisfy the needs
of every African village.?? This Nano + SprinklerValve thing may or may not be the answer,
but seems an effort well worth supporting.?

> My vote is to stay on-topic,
I haven't seen a post here about the Bitx20 in ages.?? ;-)

Jerry, KE7ER


On Mon, Mar 23, 2020 at 05:27 PM, Ken Hansen wrote:
Opinions vary, news of Elon Musk's latest exploits have never been covered here before - I see no reason to start now.
?
Do we want to start debating the suitability of a first-time medical device maker going from blank sheet of paper to respirator in a hospital ICU without *any* meaningful regulatory review in two weeks?
?
Typically the goal of international groups such as this one is to remain apolitical and avoid discussions of topics that only affect one region By staying on topic. (Remember the "CA State is shutting down all repeaters" scare? The "France wants to eliminate the 2m band" scare? In my opinion those discussions didn't belong here either, thought they were arguably Amateur Radio-related, unlike the Elon Musk link.) This group has a specific purpose on it's homepage:
?
"This group exists for constructors of the various BITX projects, to discuss all aspects of the design and construction including problems, components, modifications and experiences using the rigs."
?
Source:? /g/BITX20
?
My vote is to stay on-topic, but mine is only one of the 7,833 voices on this reflector. I'll happily reconsider if/when I hear Elon has ordered a uBitx has had some feedback or improvements on the design.
?
Ken, N2VIP
?


Re: Loop antennas

 

I have just a really nice 2m loop made by a ham, so my experience is very limited. For this reason if I were to choose, I would try a design from a company I trust, which is called ParElectronics.


Il 24/mar/2020 16:44, "Steve & Judy Levine" <sandjlevine@...> ha scritto:
Loop antennas; Amongst the loop antenna manufacturers, what does the group prefer: chameleons, either F or P, or any of the alpha loops?

I have no interest in dipoles, end not off center fed, anything or whips only loops preferably from 3 to 30. Not interested in something that bottoms out at 7 MHz, and would prefer something that could at least hit 50 if not100 W output SSB. Speak to you fine folks.


Re: Okay last time questions and then i quit

Jonathan Magee
 

Hi Rene
You mention you get a "peeeeep" when you transmit. Is this coming from the receiver you are checking your signal?on? If so are you using headphones with the receiver? It could be that the microphone?is picking up the receiver's audio and you are getting a feedback loop.

73 de Jonathan GI7KMC

On Wed, 25 Mar 2020 at 07:25, Rene <rmvanb@...> wrote:
On Wed, Mar 25, 2020 at 04:40 AM, Mark - N7EKU wrote:
Hi,

Rene said from before that he is using a dummy load, so that is not the problem.

I suppose there could be a problem with the raduino/display connection.? That could be sorted by doing a conductivity test using your multimeter for each pin to socket connection on the raduino connection.? Can you do that Rene?

Another suspected problem with the peeping could be that your HT receiver is too close. It kind of depends on how well shielded the transceiver and dummy load are.? But maybe you can try to have someone listen from another room in your house while you transmit?

I don't remember the status though, of your power out.? You have a known good power meter connected between your transceiver and dummy load?? Do you get power out using CW and a telegraph key plugged into the key jack (or shorted by hand)?? Still no power out when whistling in SSB mode?

You should eliminate the coax cables too.?? Unplug the coax connector from your transceiver and measure across the connector.? If you have a dummy load at the other end, you should have a reading of 50 ohms or so.? Sometimes even brand new cables can be bad, so it is good to check them and eliminate them as a suspect.

If after all this, your radio still tests bad, I think something needs to be done via the vendor to help you out.? But do all these tests to make sure first.

Last thing, spinning the dial fast can cause problems for inexpensive encoders.? They should work fine at lower speeds, but can't handle fast rotations.? They kind of have a "speed limit" like a Yugo? :-p

73,


Mark

?Okay Mark thx for fast answereing, tommorroe i am gonna try al those things.. but for now, yes i use an dummy load, and furter no cables in the near. The receiver is an yupiteru mvt 7100 with dummy antenna on it(tryed also normal antenna) and i did put the ATT on so more weak receiving. Mayby i have to try on a diffrent place furter in the house. I have an 3 meters swr meter, swr,modulation and power. Swr stays on 0?, modulation half but power on 20 meter more then 10, on 40 meter maybe 1 or 1.5 watts.
But i shall try to measure with the multimeter. Not today, beautiful weather so going fushin onsea. Again thanks for the tips. Brings down my frustration ?


Re: Okay last time questions and then i quit

 

¿ªÔÆÌåÓý

Maybe there is someone in your area with some experience, who could help you?? It's tough trying to figure things out for yourself, especially if it's something new to you.? (I don't know if you've ever mentioned the area in which you live, or if you'd be comfortable doing so, but in some areas there are hams ready and willing to help someone out!)

Bob
N4FBZ


On 3/25/20 3:32 AM, Rene wrote:

Ok¨¦ Evan also thanks for you, i don't use the bitx for cw but it was just to try things out. I am.planning to use it for digital modes. If it al should work, i even want to put on an nextion screen on it but i don't want to put money in a box that doesn't work properley. So work is low now,not so many trains to drive so more time to solve things out. Again thanks you all for fast answering


Re: input voltage in uBITX v6 #ubitxv6

 

Hola,
Yes you can use 13.8 Vdc I do wiTh great success. The Arduino is powered by a separate 5v regulator, so the higher voltage will not affect it.
--
?

73
Mick VA3EPM?


Re: Okay last time questions and then i quit

 

Rene, ik heb een uBITx v5 met Nextion en dat werkt prima met digitale modes onder de nieuwe firmware KD8CEC. Geef niet op want het is een prachtig leerzaam apparaat.

Succes
--
PE3ES - F4VTQ - Erwin
73


Re: Loop antennas

Steve & Judy Levine
 

¿ªÔÆÌåÓý

Hi Vic, thanks for the link. That looks like PVC that is used for speaders is that correct? ?How is the sensitivity on the low end? How about the capacitor is it fairly linear or is it really twitchy? Thanks again for sending me the link I will have to investigate it further.

73¡¯s, Steve KC1ASO


Steve


On Mar 25, 2020, at 05:48, Vic WA4THR via Groups.Io <vhklein@...> wrote:

?I have one of these portable loops that covers 3-17mHz and up to 25w. That is plenty of frequency coverage at this point in the solar cycle and the power of a uBitX.


=Vic=


Some inspiration for new radio builders

 

Check it out.? KK4DAS builds a superhet:?


https://kk4das.blogspot.com/2020/03/dean-kk4dass-furlough-40-ssb-rig.html


Re: SOLICITA??O DE AJUDA - HELP

 

Ola Rubens

Escreva para mim....
py2ohhARROBAyahoo.com.br

73 de py2ohh miguel


Re: Loop antennas

 

I have one of these portable loops that covers 3-17mHz and up to 25w. That is plenty of frequency coverage at this point in the solar cycle and the power of a uBitX.


=Vic=


Re: Elon Musk: Should Have 1000 Ventilators Next Week, + 250,000 N95 Masks For Hospitals Tomorrow ¡ª CleanTechnica Exclusive | CleanTechnica

 

THANKS -- I didn't know that.? ?Yes, we need to keep on going.

On Tue, Mar 24, 2020 at 11:28 PM KD8CGH <rkayakr@...> wrote:
The ventilators that Musk donated were imported from China, he's not producing them.

I don't think that those of us working on the ventilator can relax.
??? Bob?? KD8CGH


Re: Okay last time questions and then i quit

Rene
 

Ok¨¦ Evan also thanks for you, i don't use the bitx for cw but it was just to try things out. I am.planning to use it for digital modes. If it al should work, i even want to put on an nextion screen on it but i don't want to put money in a box that doesn't work properley. So work is low now,not so many trains to drive so more time to solve things out. Again thanks you all for fast answering


Re: Okay last time questions and then i quit

Rene
 

On Wed, Mar 25, 2020 at 04:40 AM, Mark - N7EKU wrote:
Hi,

Rene said from before that he is using a dummy load, so that is not the problem.

I suppose there could be a problem with the raduino/display connection.? That could be sorted by doing a conductivity test using your multimeter for each pin to socket connection on the raduino connection.? Can you do that Rene?

Another suspected problem with the peeping could be that your HT receiver is too close. It kind of depends on how well shielded the transceiver and dummy load are.? But maybe you can try to have someone listen from another room in your house while you transmit?

I don't remember the status though, of your power out.? You have a known good power meter connected between your transceiver and dummy load?? Do you get power out using CW and a telegraph key plugged into the key jack (or shorted by hand)?? Still no power out when whistling in SSB mode?

You should eliminate the coax cables too.?? Unplug the coax connector from your transceiver and measure across the connector.? If you have a dummy load at the other end, you should have a reading of 50 ohms or so.? Sometimes even brand new cables can be bad, so it is good to check them and eliminate them as a suspect.

If after all this, your radio still tests bad, I think something needs to be done via the vendor to help you out.? But do all these tests to make sure first.

Last thing, spinning the dial fast can cause problems for inexpensive encoders.? They should work fine at lower speeds, but can't handle fast rotations.? They kind of have a "speed limit" like a Yugo? :-p

73,


Mark

?Okay Mark thx for fast answereing, tommorroe i am gonna try al those things.. but for now, yes i use an dummy load, and furter no cables in the near. The receiver is an yupiteru mvt 7100 with dummy antenna on it(tryed also normal antenna) and i did put the ATT on so more weak receiving. Mayby i have to try on a diffrent place furter in the house. I have an 3 meters swr meter, swr,modulation and power. Swr stays on 0?, modulation half but power on 20 meter more then 10, on 40 meter maybe 1 or 1.5 watts.
But i shall try to measure with the multimeter. Not today, beautiful weather so going fushin onsea. Again thanks for the tips. Brings down my frustration ?


Re: Elon Musk: Should Have 1000 Ventilators Next Week, + 250,000 N95 Masks For Hospitals Tomorrow ? CleanTechnica Exclusive | CleanTechnica

Vince Vielhaber
 

Not needed. A group was created for it.

Vince.

On 03/25/2020 01:12 AM, Raj vu2zap wrote:
There is something call sub groups that has been long ignored Arv.


At 25/03/2020, you wrote:
Gordon

Still thinking about how to manage the "hams working on ventilators"
traffic versus
the rest of the BITX-20 group discussions.? Wonder if it would work
to let the ventilator
traffic continue but keep it under a very specific #topic header.?
This would allow
those who are not interested in ventilating to just mute that topic so
they would
never see it again.? Your thoughts...?

Arv
_._


On Mon, Mar 23, 2020 at 10:15 PM Gordon Gibby
<docvacuumtubes@... <mailto:docvacuumtubes@...> > wrote:

Thank you Arv.? ? Probably 35 messages have gone out internal the
group working on the ventilator in the last 24 hours alone.? ?
Two programmers have written working or nearly working code to
improve on the tiny stuff that I wrote; one press release was
authorized; a university PIO has come on line, and three
manufacturers have stepped up to potentially? assist or
manufacture.? ? All of that happened with very little email here
(unless I happened to slip up and sned it to the wrong place and
if so, I apologize) -- and now we are at the point of moving
toward a printed circuit board design and final software.? ?
Some had ASKED for updates on this forum.? ? All of this,
including frantic efforts to find suitable pressure transducers
etc, fervent discussions of legal matters, and safety concerns and
some arguments that were a waste of time...all happened outside
this forum (which was appropriate).? ? 97.1 indicates amateur
radio is to be a RESERVOIR of trained people....and this in
keeping with the outworking of precisely that.? ? Once a
sufficient number became involved, there was no further need to
discuss on this forum (unless by accident I sent the wrong place,
my apologies).

THANKS for all who have volunteered their time and expertise, the
group who started this has been overwhelmed with offers.
Lets hope this does some good.

Gordon Gibby KX4Z



On Mon, Mar 23, 2020 at 11:49 PM Arv Evans <arvid.evans@...
<mailto:arvid.evans@...>> wrote:


A recent ARRL news post highlighted the BITX20 group effort to
work up a low cost design for a safe ventilator.? ?

These are strange times that might offer an opportunity for
hams to "make a difference".?

My request is for those not interested in this subject to mute
the topic for the next few days.? Work is ongoing to form a
new group to focus directly on this effort.? This will
hopefully move the ventilator messages to that venue.? If
off-topic posts persists after the new group is functioning,
those posts can be moderated and redirected to that group.? ?

I would ask those who are setting up a new info and control
web site for the ventilator project to post a notification
here when their site is up and running.? Once that is done we
can take steps to move ventilator traffic over to that new
discussion site.

Thanks

Arv
_-_


On Mon, Mar 23, 2020, 8:53 PM Jerry Gaffke via Groups.Io
<jgaffke@... <mailto:[email protected]> > wrote:

Ken,

Your best bet is convince the forum moderator, that would
be Arv:
? ? ? /g/BITX20/message/77310

I suppose you could check with Farhan, he may still have
some pull here:
? ? ? /g/BITX20/message/2
? ? ? /g/BITX20/message/77283

Failing the above, perhaps start your own group?

Talk about this pandemic will be everywhere that people
communicate.
If you want to avoid any such discussion, I suggest you
pull the plug on?
your computer, radio and TV till about this time next year.

Back to the topic:? ?
Hopefully, if I need a ventilator, it will be something
fully vetted by the FDA and UL and whatever.
Hard to imagine Tesla and GM producing enough at
sufficiently low cost to satisfy the needs
of every African village.? This Nano + SprinklerValve
thing may or may not be the answer,
but seems an effort well worth supporting.?

> My vote is to stay on-topic,
I haven't seen a post here about the Bitx20 in ages.? ;-)

Jerry, KE7ER


On Mon, Mar 23, 2020 at 05:27 PM, Ken Hansen wrote:

Opinions vary, news of Elon Musk's latest exploits
have never been covered here before - I see no reason
to start now.
?
Do we want to start debating the suitability of a
first-time medical device maker going from blank sheet
of paper to respirator in a hospital ICU without *any*
meaningful regulatory review in two weeks?
?
Typically the goal of international groups such as
this one is to remain apolitical and avoid discussions
of topics that only affect one region By staying on
topic. (Remember the "CA State is shutting down all
repeaters" scare? The "France wants to eliminate the
2m band" scare? In my opinion those discussions didn't
belong here either, thought they were arguably Amateur
Radio-related, unlike the Elon Musk link.) This group
has a specific purpose on it's groups.io
<> homepage:
?
"This group exists for constructors of the various
BITX projects, to discuss all aspects of the design
and construction including problems, components,
modifications and experiences using the rigs."
?
Source:? /g/BITX20
?
My vote is to stay on-topic, but mine is only one of
the 7,833 voices on this reflector. I'll happily
reconsider if/when I hear Elon has ordered a uBitx has
had some feedback or improvements on the design.
?
Ken, N2VIP
?

--
K8ZW


Re: Elon Musk: Should Have 1000 Ventilators Next Week, + 250,000 N95 Masks For Hospitals Tomorrow ? CleanTechnica Exclusive | CleanTechnica

 

There is something call sub groups that has been long ignored Arv.


At 25/03/2020, you wrote:

Gordon

Still thinking about how to manage the "hams working on ventilators" traffic versus
the rest of the BITX-20 group discussions.?? Wonder if it would work to let the ventilator
traffic continue but keep it under a very specific #topic header.?? This would allow
those who are not interested in ventilating to just mute that topic so they would
never see it again.?? Your thoughts...?

Arv
_._


On Mon, Mar 23, 2020 at 10:15 PM Gordon Gibby <docvacuumtubes@... > wrote:
Thank you Arv.?? ? Probably 35 messages have gone out internal the group working on the ventilator in the last 24 hours alone.?? ? Two programmers have written working or nearly working code to improve on the tiny stuff that I wrote; one press release was authorized; a university PIO has come on line, and three manufacturers have stepped up to potentially? assist or manufacture.?? ? All of that happened with very little email here (unless I happened to slip up and sned it to the wrong place and if so, I apologize) -- and now we are at the point of moving toward a printed circuit board design and final software.?? ?? Some had ASKED for updates on this forum.?? ? All of this, including frantic efforts to find suitable pressure transducers etc, fervent discussions of legal matters, and safety concerns and some arguments that were a waste of time...all happened outside this forum (which was appropriate).?? ? 97.1 indicates amateur radio is to be a RESERVOIR of trained people....and this in keeping with the outworking of precisely that.?? ? Once a sufficient number became involved, there was no further need to discuss on this forum (unless by accident I sent the wrong place, my apologies).

THANKS for all who have volunteered their time and expertise, the group who started this has been overwhelmed with offers.
Lets hope this does some good.

Gordon Gibby KX4Z



On Mon, Mar 23, 2020 at 11:49 PM Arv Evans <arvid.evans@...> wrote:

A recent ARRL news post highlighted the BITX20 group effort to work up a low cost design for a safe ventilator.? ?

These are strange times that might offer an opportunity for hams to "make a difference".?

My request is for those not interested in this subject to mute the topic for the next few days.?? Work is ongoing to form a new group to focus directly on this effort.?? This will hopefully move the ventilator messages to that venue.?? If off-topic posts persists after the new group is functioning, those posts can be moderated and redirected to that group.? ?

I would ask those who are setting up a new info and control web site for the ventilator project to post a notification here when their site is up and running.?? Once that is done we can take steps to move ventilator traffic over to that new discussion site.

Thanks

Arv
_-_


On Mon, Mar 23, 2020, 8:53 PM Jerry Gaffke via Groups.Io <jgaffke=[email protected] > wrote:
Ken,

Your best bet is convince the forum moderator, that would be Arv:
?? ? ? /g/BITX20/message/77310

I suppose you could check with Farhan, he may still have some pull here:
?? ? ? /g/BITX20/message/2
?? ? ? /g/BITX20/message/77283

Failing the above, perhaps start your own group?

Talk about this pandemic will be everywhere that people communicate.
If you want to avoid any such discussion, I suggest you pull the plug on?
your computer, radio and TV till about this time next year.

Back to the topic:? ?
Hopefully, if I need a ventilator, it will be something fully vetted by the FDA and UL and whatever.
Hard to imagine Tesla and GM producing enough at sufficiently low cost to satisfy the needs
of every African village.?? This Nano + SprinklerValve thing may or may not be the answer,
but seems an effort well worth supporting.?

> My vote is to stay on-topic,
I haven't seen a post here about the Bitx20 in ages.?? ;-)

Jerry, KE7ER


On Mon, Mar 23, 2020 at 05:27 PM, Ken Hansen wrote:
Opinions vary, news of Elon Musk's latest exploits have never been covered here before - I see no reason to start now.
?
Do we want to start debating the suitability of a first-time medical device maker going from blank sheet of paper to respirator in a hospital ICU without *any* meaningful regulatory review in two weeks?
?
Typically the goal of international groups such as this one is to remain apolitical and avoid discussions of topics that only affect one region By staying on topic. (Remember the "CA State is shutting down all repeaters" scare? The "France wants to eliminate the 2m band" scare? In my opinion those discussions didn't belong here either, thought they were arguably Amateur Radio-related, unlike the Elon Musk link.) This group has a specific purpose on it's homepage:
?
"This group exists for constructors of the various BITX projects, to discuss all aspects of the design and construction including problems, components, modifications and experiences using the rigs."
?
Source:? /g/BITX20
?
My vote is to stay on-topic, but mine is only one of the 7,833 voices on this reflector. I'll happily reconsider if/when I hear Elon has ordered a uBitx has had some feedback or improvements on the design.
?
Ken, N2VIP
?


input voltage in uBITX v6 #ubitxv6

 

Hola, ?puedo alimentar mi uBitX-6 con 13.8 voltios? Tengo dudas ya que Arduino recomienda alimentar con 12 voltios.

73
Ca4wqp?


Re: Okay last time questions and then i quit

Mark - N7EKU
 

Hi,

Rene said from before that he is using a dummy load, so that is not the problem.

I suppose there could be a problem with the raduino/display connection.? That could be sorted by doing a conductivity test using your multimeter for each pin to socket connection on the raduino connection.? Can you do that Rene?

Another suspected problem with the peeping could be that your HT receiver is too close. It kind of depends on how well shielded the transceiver and dummy load are.? But maybe you can try to have someone listen from another room in your house while you transmit?

I don't remember the status though, of your power out.? You have a known good power meter connected between your transceiver and dummy load?? Do you get power out using CW and a telegraph key plugged into the key jack (or shorted by hand)?? Still no power out when whistling in SSB mode?

You should eliminate the coax cables too.?? Unplug the coax connector from your transceiver and measure across the connector.? If you have a dummy load at the other end, you should have a reading of 50 ohms or so.? Sometimes even brand new cables can be bad, so it is good to check them and eliminate them as a suspect.

If after all this, your radio still tests bad, I think something needs to be done via the vendor to help you out.? But do all these tests to make sure first.

Last thing, spinning the dial fast can cause problems for inexpensive encoders.? They should work fine at lower speeds, but can't handle fast rotations.? They kind of have a "speed limit" like a Yugo? :-p

73,


Mark


Re: Elon Musk: Should Have 1000 Ventilators Next Week, + 250,000 N95 Masks For Hospitals Tomorrow ¡ª CleanTechnica Exclusive | CleanTechnica

 

The ventilators that Musk donated were imported from China, he's not producing them.

I don't think that those of us working on the ventilator can relax.
??? Bob?? KD8CGH