Re: Home Power Supply for Yaseu Ft 818nd
Hi, I suggest you read this topic, and use a power cable with adequate section.
?
?
Regards, IZ1FHC
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Re: Home Power Supply for Yaseu Ft 818nd
That can be adjusted in one of the service menus. ? 73….Eric VK2VE. ?
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From: ft817@groups.io <ft817@groups.io> On Behalf Of James Todd
Sent: Saturday, 5 October 2024 09:35
To: ft817@groups.io
Subject: Re: [ft817] Home Power Supply for Yaseu Ft 818nd? I would not trust the display on the radio. I would trust a calibrated power supply or meter. ?Mine is not that accurate, off by at least 1.5 volts.?
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Re: Home Power Supply for Yaseu Ft 818nd
Hi Al, ? If that’s the case, then the 1V drop is quite acceptable as it is also reflecting the voltage drop in the cable from the power supply, especially if it’s a fairly thin one, as they often are. ? I think you’ll find that you will also see a voltage drop on the radio’s meter when transmitting on internal battery, as well. ? 73….Eric VK2VE. ?
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From: ft817@groups.io <ft817@groups.io> On Behalf Of Al WB9UVJ
Sent: Saturday, 5 October 2024 08:59
To: ft817@groups.io
Subject: Re: [ft817] Home Power Supply for Yaseu Ft 818nd? Michael, I was reading that on the voltage display of the radio.? That is the one that counts after all.
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Re: Home Power Supply for Yaseu Ft 818nd
It also depends on where he’s measuring it. ? If being measured at the power supply’s output terminals, then it is probably too much drop, however, if it’s being measured on the FT817’s internal voltmeter, then a 1V drop is quite possible, especially if the lead from the power supply to the radio is quite thin. ? Whichever the case, 11V is more than adequate to give full output in the radio as it will give full output down to at least about 9.5V. ? ?
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From: ft817@groups.io <ft817@groups.io> On Behalf Of Ken N2VIP
Sent: Saturday, 5 October 2024 08:59
To: ft817@groups.io
Subject: Re: [ft817] Home Power Supply for Yaseu Ft 818nd? I think he might notice a 1 volt drop on a 12v power source, even on an analog meter. An 11v power source is perfectly acceptable for an FT-817, but it's not an 11v supply - it should hold the voltage better under an amp or two draw in my opinion. ?
On Oct 4, 2024, at 17:48, Michael Davis via groups.io <maddmd818@...> wrote:
? They all drop a bit. You must be reading a digital volt meter. If it was analog, you'd never notice.? ? On Oct 4, 2024 1:33 PM, Al WB9UVJ <markaren1@...> wrote: Well I received the power supply I linked above and it is quiet it seems.? However during transmit the 12 volts drops almost a volt.? While it seems nice, I am going to return it to Amazon.? My suspicion is the voltage drop will be more pronounced when the supply heats up.
?
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Re: Home Power Supply for Yaseu Ft 818nd
I would not trust the display on the radio. I would trust a calibrated power supply or meter. ?Mine is not that accurate, off by at least 1.5 volts.?
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Re: Home Power Supply for Yaseu Ft 818nd
Ok. Let us know if another ps does the same. I'm running battery, but never noticed. Thanks 73
Mike WA1MAD
On Oct 4, 2024 6:59 PM, Al WB9UVJ <markaren1@...> wrote: Michael, I was reading that on the voltage display of the radio.? That is the one that counts after all.
--
Al Skierkiewicz
WB9UVJ
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Re: Home Power Supply for Yaseu Ft 818nd
Michael, I was reading that on the voltage display of the radio.? That is the one that counts after all.
--
Al Skierkiewicz
WB9UVJ
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Re: Home Power Supply for Yaseu Ft 818nd
I think he might notice a 1 volt drop on a 12v power source, even on an analog meter.
An 11v power source is perfectly acceptable for an FT-817, but it's not an 11v supply - it should hold the voltage better under an amp or two draw in my opinion.
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On Oct 4, 2024, at 17:48, Michael Davis via groups.io <maddmd818@...> wrote:
? They all drop a bit. You must be reading a digital volt meter. If it was analog, you'd never notice.?
Mike WA1MAD
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Re: Feb QST article A Portable Twin-Lead 20m Dipole
I don't believe the group should store copyright-protected content - as I recall, the league is very good about pointing that out when you download an article...
QST articles are not in the public domain, as far as I know.
If the author wants to give you/us a shareable copy of an article they wrote, I believe they have that right...
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On Oct 4, 2024, at 16:52, D Jones via groups.io <Djoneses@...> wrote:
?Greg:
I sent you a pdf of the article.? I also sent it to the group. On Fri, Oct 4, 2024 at 3:50 PM, Mike Dinolfo <mdinolfo@...> wrote:
Greg:
Unfortunately, ARRL's offering of archival issues of QST can be
somewhat difficult to navigate, but you can get access:
1.? You are correct that the "digital archives" only goes as far
back as 2012, BUT:
2.? Earlier-than-2012 issues (actually, individual articles) are
also available all the way back to 1913 or thereabouts, but via a
different process:
2a.? Start at ARRL home page, login as ARRL member
2b. After login, go back to ARRL home page (if not already there)
and click on "Technology"
2c. Click on "Periodicals archive and search"
2d. Enter various search items into text blocks, e.g., month, or
year, or authors name, etc.? In this case, enter "2002" for the
year, "Feburary" for the month, and "twin-lead dipole" for the
title/keywords, and a new window will pop up providing a link to
the article.
This "search" process can also be used for any year of QST
(including the "digital archives".)? Although the process to
access articles is different for pre-2012 vs. 2012-and-on years.
Mike N4MWP
On 10/2/24 18:08, AE4GW-Greg Wilde
wrote:
I looked and the digital archives for QST just go back to
2012.
73,
Greg Wilde, AE4GW
On Wed, Oct 2, 2024, 6:01?PM
Tobias KK7BCO/2M0TFF via <feltusfecit1= gmail.com@groups.io>
wrote:
ARRL members have access to the archives. I can
look if I remember.
On Wed, Oct 2, 2024, 14:59
william Northcote via
<william.northcote= gmail.com@groups.io>
wrote:
Ask the ARRL if they have a digital copy. I
know they have them on CD for past publications.
2M0WHN
My father gave me this article back in 2002 and
we made a few dipoles.? I'd love to get a copy of
this article, but can't find it anywhere online.?
Would anyone happen to have a copy of this???
I think these dipoles are made from foam twinlead.?
Maybe I am remembering the wrong article.
?
73,
?
Jerry? K8CMI
--
To know a man, walk
a mile in his shoes. You will be one mile away and
wearing new shoes.
If you loan someone ?20 and never see them again, think
of it as a good investment.
|
Re: Home Power Supply for Yaseu Ft 818nd
They all drop a bit. You must be reading a digital volt meter. If it was analog, you'd never notice.?
Mike WA1MAD
On Oct 4, 2024 1:33 PM, Al WB9UVJ <markaren1@...> wrote: Well I received the power supply I linked above and it is quiet it seems.? However during transmit the 12 volts drops almost a volt.? While it seems nice, I am going to return it to Amazon.? My suspicion is the voltage drop will be more pronounced when the supply heats up.
?
--
Al Skierkiewicz
WB9UVJ
|
Re: Feb QST article A Portable Twin-Lead 20m Dipole
Greg:
I sent you a pdf of the article.? I also sent it to the group.
On Fri, Oct 4, 2024 at 3:50 PM, Mike Dinolfo <mdinolfo@...> wrote:
Greg:
Unfortunately, ARRL's offering of archival issues of QST can be
somewhat difficult to navigate, but you can get access:
1.? You are correct that the "digital archives" only goes as far
back as 2012, BUT:
2.? Earlier-than-2012 issues (actually, individual articles) are
also available all the way back to 1913 or thereabouts, but via a
different process:
2a.? Start at ARRL home page, login as ARRL member
2b. After login, go back to ARRL home page (if not already there)
and click on "Technology"
2c. Click on "Periodicals archive and search"
2d. Enter various search items into text blocks, e.g., month, or
year, or authors name, etc.? In this case, enter "2002" for the
year, "Feburary" for the month, and "twin-lead dipole" for the
title/keywords, and a new window will pop up providing a link to
the article.
This "search" process can also be used for any year of QST
(including the "digital archives".)? Although the process to
access articles is different for pre-2012 vs. 2012-and-on years.
Mike N4MWP
On 10/2/24 18:08, AE4GW-Greg Wilde
wrote:
I looked and the digital archives for QST just go back to
2012.
73,
Greg Wilde, AE4GW
On Wed, Oct 2, 2024, 6:01?PM
Tobias KK7BCO/2M0TFF via <feltusfecit1= gmail.com@groups.io>
wrote:
ARRL members have access to the archives. I can
look if I remember.
On Wed, Oct 2, 2024, 14:59
william Northcote via
<william.northcote= gmail.com@groups.io>
wrote:
Ask the ARRL if they have a digital copy. I
know they have them on CD for past publications.
2M0WHN
My father gave me this article back in 2002 and
we made a few dipoles.? I'd love to get a copy of
this article, but can't find it anywhere online.?
Would anyone happen to have a copy of this???
I think these dipoles are made from foam twinlead.?
Maybe I am remembering the wrong article.
?
73,
?
Jerry? K8CMI
--
To know a man, walk
a mile in his shoes. You will be one mile away and
wearing new shoes.
If you loan someone ?20 and never see them again, think
of it as a good investment.
|
Re: Home Power Supply for Yaseu Ft 818nd
I think it was a good decision to send the PS back. No power supply of any worth should do that. It makes me wonder if it's a design issue, or just a bad one that didn't get rejected in QC. Good luck with whatever you get to replace it.
On Fri, Oct 4, 2024 at 1:33 PM, Al WB9UVJ <markaren1@...> wrote: Well I received the power supply I linked above and it is quiet it seems.? However during transmit the 12 volts drops almost a volt.? While it seems nice, I am going to return it to Amazon.? My suspicion is the voltage drop will be more pronounced when the supply heats up.
?
--
Al Skierkiewicz
WB9UVJ
|
Re: Home Power Supply for Yaseu Ft 818nd
The $7 power supply mentioned earlier would likely be a better match than the power supply you linked to on Amazon. The $7 PS is made for industrial applications and likely handles larger power draws better.
Also, the $7 PS can be adjusted up to 14v, as mentioned on the MFG datasheet.
I ordered 3, and with shipping and taxes it worked out to $11/ea (< $34 for all 3), I'm sure I'll find QRP applications for that little PS.
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On Oct 4, 2024, at 12:33, Al WB9UVJ <markaren1@...> wrote:
? Well I received the power supply I linked above and it is quiet it seems.? However during transmit the 12 volts drops almost a volt.? While it seems nice, I am going to return it to Amazon.? My suspicion is the voltage drop will be more pronounced when the supply heats up.
?
--
Al Skierkiewicz
WB9UVJ
|
Re: Feb QST article A Portable Twin-Lead 20m Dipole
Mike,?
Thanks for that information.? I was not aware of that.?
Greg Wilde, AE4GW
Greg:
Unfortunately, ARRL's offering of archival issues of QST can be
somewhat difficult to navigate, but you can get access:
1.? You are correct that the "digital archives" only goes as far
back as 2012, BUT:
2.? Earlier-than-2012 issues (actually, individual articles) are
also available all the way back to 1913 or thereabouts, but via a
different process:
2a.? Start at ARRL home page, login as ARRL member
2b. After login, go back to ARRL home page (if not already there)
and click on "Technology"
2c. Click on "Periodicals archive and search"
2d. Enter various search items into text blocks, e.g., month, or
year, or authors name, etc.? In this case, enter "2002" for the
year, "Feburary" for the month, and "twin-lead dipole" for the
title/keywords, and a new window will pop up providing a link to
the article.
This "search" process can also be used for any year of QST
(including the "digital archives".)? Although the process to
access articles is different for pre-2012 vs. 2012-and-on years.
Mike N4MWP
On 10/2/24 18:08, AE4GW-Greg Wilde
wrote:
I looked and the digital archives for QST just go back to
2012.
73,
Greg Wilde, AE4GW
On Wed, Oct 2, 2024, 6:01?PM
Tobias KK7BCO/2M0TFF via <feltusfecit1= gmail.com@groups.io>
wrote:
ARRL members have access to the archives. I can
look if I remember.
On Wed, Oct 2, 2024, 14:59
william Northcote via
<william.northcote= gmail.com@groups.io>
wrote:
Ask the ARRL if they have a digital copy. I
know they have them on CD for past publications.
2M0WHN
My father gave me this article back in 2002 and
we made a few dipoles.? I'd love to get a copy of
this article, but can't find it anywhere online.?
Would anyone happen to have a copy of this???
I think these dipoles are made from foam twinlead.?
Maybe I am remembering the wrong article.
?
73,
?
Jerry? K8CMI
--
To know a man, walk
a mile in his shoes. You will be one mile away and
wearing new shoes.
If you loan someone ?20 and never see them again, think
of it as a good investment.
|
Re: Feb QST article A Portable Twin-Lead 20m Dipole
Greg:
Unfortunately, ARRL's offering of archival issues of QST can be
somewhat difficult to navigate, but you can get access:
1.? You are correct that the "digital archives" only goes as far
back as 2012, BUT:
2.? Earlier-than-2012 issues (actually, individual articles) are
also available all the way back to 1913 or thereabouts, but via a
different process:
2a.? Start at ARRL home page, login as ARRL member
2b. After login, go back to ARRL home page (if not already there)
and click on "Technology"
2c. Click on "Periodicals archive and search"
2d. Enter various search items into text blocks, e.g., month, or
year, or authors name, etc.? In this case, enter "2002" for the
year, "Feburary" for the month, and "twin-lead dipole" for the
title/keywords, and a new window will pop up providing a link to
the article.
This "search" process can also be used for any year of QST
(including the "digital archives".)? Although the process to
access articles is different for pre-2012 vs. 2012-and-on years.
Mike N4MWP
On 10/2/24 18:08, AE4GW-Greg Wilde
wrote:
toggle quoted message
Show quoted text
I looked and the digital archives for QST just go back to
2012.
73,
Greg Wilde, AE4GW
On Wed, Oct 2, 2024, 6:01?PM
Tobias KK7BCO/2M0TFF via <feltusfecit1= gmail.com@groups.io>
wrote:
ARRL members have access to the archives. I can
look if I remember.
On Wed, Oct 2, 2024, 14:59
william Northcote via
<william.northcote= gmail.com@groups.io>
wrote:
Ask the ARRL if they have a digital copy. I
know they have them on CD for past publications.
2M0WHN
My father gave me this article back in 2002 and
we made a few dipoles.? I'd love to get a copy of
this article, but can't find it anywhere online.?
Would anyone happen to have a copy of this???
I think these dipoles are made from foam twinlead.?
Maybe I am remembering the wrong article.
?
73,
?
Jerry? K8CMI
--
To know a man, walk
a mile in his shoes. You will be one mile away and
wearing new shoes.
If you loan someone ?20 and never see them again, think
of it as a good investment.
|
Re: Feb QST article A Portable Twin-Lead 20m Dipole
I looked and the digital archives for QST just go back to 2012.
73,
Greg Wilde, AE4GW
On Wed, Oct 2, 2024, 6:01?PM Tobias KK7BCO/2M0TFF via <feltusfecit1= gmail.com@groups.io> wrote: ARRL members have access to the archives. I can look if I remember.
On Wed, Oct 2, 2024, 14:59 william Northcote via <william.northcote= gmail.com@groups.io> wrote: Ask the ARRL if they have a digital copy. I know they have them on CD for past publications.
2M0WHN
My father gave me this article back in 2002 and we made a few dipoles.? I'd love to get a copy of this article, but can't find it anywhere online.? Would anyone happen to have a copy of this???
I think these dipoles are made from foam twinlead.? Maybe I am remembering the wrong article.
?
73,
?
Jerry? K8CMI
--
To know a man, walk a mile in his shoes. You will be one mile away and wearing new shoes.
If you loan someone ?20 and never see them again, think of it as a good investment.
|
Re: Home Power Supply for Yaseu Ft 818nd
Well I received the power supply I linked above and it is quiet it seems.? However during transmit the 12 volts drops almost a volt.? While it seems nice, I am going to return it to Amazon.? My suspicion is the voltage drop will be more pronounced when the supply heats up.
?
--
Al Skierkiewicz
WB9UVJ
|
T1 - FT817 Control Cable Price: @@WANTED @@
T1 - FT817 Control Cable - connect Elecraft T1 Antenna Tuner to FT 817T1 - FT817 Control Cable
Price: @@WANTED @@
?@@WANTED @@
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Re: Home Power Supply for Yaseu Ft 818nd
I use surplus server supplies for most of my 12v needs, which can be had, sometimes in bulk, on eBay and similar sources for very low prices. ?
I get the brand-name ones, like HP, which are usually built to much higher standards than the commodity switching supplies, and most of the commercial ham models, and usually have over-voltage and over-current protections. ?They almost alway take a euro-style standard cord, so you're not wiring AC, with the risk of something pulling apart, or trusting the sometimes iffy grounding of the cheap supplies. ?The only downside so far is usually needing to solder a resistor or jumper across two pins on the edge connector to turn on the output. ?They also probably supply a whole lot more current, by orders of magnitude, ?than an 817 ever needs.?
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Re: Home Power Supply for Yaseu Ft 818nd
Search for 10amp quiet power supplies. Many show up for $10-$20.?
Mike WA1MAD
On Oct 2, 2024 4:41 PM, Tony Murphy <tony1kenobi@...> wrote: Hi,
?
This has probably been asked before, but, what is a decent power supply to use at home with an FT 818.
One that plugs into the wall :-)
?
Thanks
Tony
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Franco Corsi
Michael Davis
Al WB9UVJ
Mike Dinolfo