Re: [BVARC] Power supply for home

[John Mechura via BVARC]

Get the bigger power supply.  It will have an easier life and if you
acquire more power hungry equipment later you're still good.

John,
KI5HOC

On Wed, Nov 22, 2023 at 12:29 PM mike.williams shopjubilee.com via BVARC <
bvarc@bvarc.org> wrote:

> I run a size 27 deep cycle / starting rated AGM battery fed by a 30a
> Astron. I run either a FT991A or a FTDX10 and a 600w DC Worthmore 12vdc Amp
> all off the battery. With this setup, power outages are not an issue.
>
> I run a similar setup at our farm/deer camp and use a 12v brick pc for
> internet. This weekend we will be adding solar charging to the shack at the
> farm.
>
> 73,
> Mike KK5SC
>
>
>
> Sent from my T-Mobile 5G Device
>
>
>
>  Original message 
> From: K5BOU via BVARC 
> Date: 11/22/23 10:25 AM (GMT-06:00)
> To: 'Rudolph Ackerman' , 'BRAZOS VALLEY
> AMATEUR RADIO CLUB' 
> Cc: K5BOU 
> Subject: Re: [BVARC] Power supply for home
>
> I use the Astron RS-50 A. Run 2 icom (7300 and 9700) + bunches of other
> stuff that need power/. I bought 50 A because sometimes both radios are
> transmitted simultaneously, and I always wonder what I will purchase next
> and worry about buying a new power supply.
>
>
>
>
>
> K5BOU-PhilippeBoucaumont
>
> Houston*|*Texas*|*USA*|*
>
> https://mccrarymeadowsweather.com/
>
> [image: A logo of a radio company Description automatically generated][image:
> A yellow and black logo Description automatically generated][image: A
> logo of a network Description automatically generated]
>
>   #77940
>
>
>
> *From:* BVARC  *On Behalf Of *Rudolph Ackerman
> via BVARC
> *Sent:* Wednesday, November 22, 2023 9:55 AM
> *To:* BRAZOS VALLEY AMATEUR RADIO CLUB 
> *Cc:* Rudolph Ackerman 
> *Subject:* [BVARC] Power supply for home
>
>
>
> I'm looking for a power supply to power my radios at home. I currently
> have a Yaesu FTM-400 and a Yaesu FTDX-10.The FTM-400 draws a max of 12
> amps and the FTDX-10 draws 21 amps max.   I do not see ever transmitting on
> both at the same time, with that I feel a 25amp power supply should be
> fine.  I'm looking at the Astron SS-30M-AP  power supply which provides 25
> amps normal and 30 amps peak. The other option is the Astron SS-50M-AP
> which provides 40 amps normal and 50 amps max.
>
>
>
> Is there a reason why to go with the larger power supply?
>
>
>
> Thanks
>
> Rudy Ackerman
>
> KF5QYG
>
>
>
>
>
>
>
>
>
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

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Re: [BVARC] Power supply for home

[mike.williams shopjubilee.com via BVARC]

I run a size 27 deep cycle / starting rated AGM battery fed by a 30a Astron. I 
run either a FT991A or a FTDX10 and a 600w DC Worthmore 12vdc Amp all off the 
battery. With this setup, power outages are not an issue.

I run a similar setup at our farm/deer camp and use a 12v brick pc for 
internet. This weekend we will be adding solar charging to the shack at the 
farm.

73,
Mike KK5SC



Sent from my T-Mobile 5G Device



 Original message 
From: K5BOU via BVARC 
Date: 11/22/23 10:25 AM (GMT-06:00)
To: 'Rudolph Ackerman' , 'BRAZOS VALLEY AMATEUR 
RADIO CLUB' 
Cc: K5BOU 
Subject: Re: [BVARC] Power supply for home

I use the Astron RS-50 A. Run 2 icom (7300 and 9700) + bunches of other stuff 
that need power/. I bought 50 A because sometimes both radios are transmitted 
simultaneously, and I always wonder what I will purchase next and worry about 
buying a new power supply.


[cid:image001.png@01DA1D2E.2E4D2600]
K5BOU-PhilippeBoucaumont
Houston|Texas|USA|
https://mccrarymeadowsweather.com/
[A logo of a radio company  Description automatically generated][A yellow and 
black logo  Description automatically generated][A logo of a network  
Description automatically generated]
  #77940

From: BVARC  On Behalf Of Rudolph Ackerman via BVARC
Sent: Wednesday, November 22, 2023 9:55 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Rudolph Ackerman 
Subject: [BVARC] Power supply for home

I'm looking for a power supply to power my radios at home. I currently have 
a Yaesu FTM-400 and a Yaesu FTDX-10.The FTM-400 draws a max of 12 amps and 
the FTDX-10 draws 21 amps max.   I do not see ever transmitting on both at the 
same time, with that I feel a 25amp power supply should be fine.  I'm looking 
at the Astron SS-30M-AP  power supply which provides 25 amps normal and 30 amps 
peak. The other option is the Astron SS-50M-AP which provides 40 amps 
normal and 50 amps max.

Is there a reason why to go with the larger power supply?

Thanks
Rudy Ackerman
KF5QYG






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Re: [BVARC] Power supply for home

[K5BOU via BVARC]

I use the Astron RS-50 A. Run 2 icom (7300 and 9700) + bunches of other stuff 
that need power/. I bought 50 A because sometimes both radios are transmitted 
simultaneously, and I always wonder what I will purchase next and worry about 
buying a new power supply. 

 

 



K5BOU-PhilippeBoucaumont

Houston|Texas|USA|

 <https://mccrarymeadowsweather.com/> https://mccrarymeadowsweather.com/



  #77940

 

From: BVARC  On Behalf Of Rudolph Ackerman via BVARC
Sent: Wednesday, November 22, 2023 9:55 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Rudolph Ackerman 
Subject: [BVARC] Power supply for home

 

I'm looking for a power supply to power my radios at home. I currently have 
a Yaesu FTM-400 and a Yaesu FTDX-10.The FTM-400 draws a max of 12 amps and 
the FTDX-10 draws 21 amps max.   I do not see ever transmitting on both at the 
same time, with that I feel a 25amp power supply should be fine.  I'm looking 
at the Astron SS-30M-AP  power supply which provides 25 amps normal and 30 amps 
peak. The other option is the Astron SS-50M-AP which provides 40 amps 
normal and 50 amps max.   

 

Is there a reason why to go with the larger power supply?

 

Thanks

Rudy Ackerman 

KF5QYG

 

 

 

 

 


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[BVARC] Power supply for home

[Rudolph Ackerman via BVARC]

I'm looking for a power supply to power my radios at home. I currently have 
a Yaesu FTM-400 and a Yaesu FTDX-10.    The FTM-400 draws a max of 12 amps and 
the FTDX-10 draws 21 amps max.   I do not see ever transmitting on both at the 
same time, with that I feel a 25amp power supply should be fine.  I'm looking 
at the Astron SS-30M-AP  power supply which provides 25 amps normal and 30 amps 
peak. The other option is the Astron SS-50M-AP which provides 40 amps 
normal and 50 amps max.   

Is there a reason why to go with the larger power supply?

Thanks
Rudy Ackerman 
KF5QYG

 

  
 
 
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Re: [BVARC] Power Supply Repair

[Chuck Finnell via BVARC]

Thank you Phil!

On Tue, Apr 25, 2023 at 2:40 PM Philip Bartash via BVARC 
wrote:

> Give Alexander Suvorov a call: 281-854-5667
>
> 73,
> Phil
> W2OZB
>
> "What I lack in copy skills, I make up with my poor sending technique"
>
> On Tue, Apr 25, 2023 at 2:32 PM Chuck Finnell via BVARC 
> wrote:
>
>> BVARC,
>> I am looking for suggestions for a power supply repair person/company
>> here in Houston, if they exist. The needed repair is a Ten-Tec Model 962
>> power supply that works with my Ten-Tec Omni VI Plus. Thank you for your
>> help and any suggestions you may have.
>> Regards,
>> Chuck Finnell
>> K4DAG
>> 713.266.1989
>> chuck4...@gmail.com
>> 
>> Brazos Valley Amateur Radio Club
>>
>> BVARC mailing list
>> BVARC@bvarc.org
>> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
>> Publicly available archives are available here:
>> https://www.mail-archive.com/bvarc@bvarc.org/
>>
> 
> Brazos Valley Amateur Radio Club
>
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> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

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Re: [BVARC] Power Supply Repair

[Philip Bartash via BVARC]

nutz! its 281-854-5657



On Tue, Apr 25, 2023 at 2:39 PM Philip Bartash  wrote:

> Give Alexander Suvorov a call: 281-854-5667
>
> 73,
> Phil
> W2OZB
>
> "What I lack in copy skills, I make up with my poor sending technique"
>
> On Tue, Apr 25, 2023 at 2:32 PM Chuck Finnell via BVARC 
> wrote:
>
>> BVARC,
>> I am looking for suggestions for a power supply repair person/company
>> here in Houston, if they exist. The needed repair is a Ten-Tec Model 962
>> power supply that works with my Ten-Tec Omni VI Plus. Thank you for your
>> help and any suggestions you may have.
>> Regards,
>> Chuck Finnell
>> K4DAG
>> 713.266.1989
>> chuck4...@gmail.com
>> 
>> Brazos Valley Amateur Radio Club
>>
>> BVARC mailing list
>> BVARC@bvarc.org
>> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
>> Publicly available archives are available here:
>> https://www.mail-archive.com/bvarc@bvarc.org/
>>
>

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Re: [BVARC] Power Supply Repair

[Philip Bartash via BVARC]

Give Alexander Suvorov a call: 281-854-5667

73,
Phil
W2OZB

"What I lack in copy skills, I make up with my poor sending technique"

On Tue, Apr 25, 2023 at 2:32 PM Chuck Finnell via BVARC 
wrote:

> BVARC,
> I am looking for suggestions for a power supply repair person/company here
> in Houston, if they exist. The needed repair is a Ten-Tec Model 962 power
> supply that works with my Ten-Tec Omni VI Plus. Thank you for your help and
> any suggestions you may have.
> Regards,
> Chuck Finnell
> K4DAG
> 713.266.1989
> chuck4...@gmail.com
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

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[BVARC] Power Supply Repair

[Chuck Finnell via BVARC]

BVARC,
I am looking for suggestions for a power supply repair person/company here
in Houston, if they exist. The needed repair is a Ten-Tec Model 962 power
supply that works with my Ten-Tec Omni VI Plus. Thank you for your help and
any suggestions you may have.
Regards,
Chuck Finnell
K4DAG
713.266.1989
chuck4...@gmail.com

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Re: [BVARC] Power Supply

[Gary Sitton via BVARC]

I use an MFJ 45A supply but replaced one of the fans with a quieter model.
Gary K5AMH

On August 11, 2021 1:39:46 AM Mark Brantana via BVARC  wrote:

I have been very happy with my MegaWatt 40 amp. Some small fan noise, though.

I bet you will run into supply issues whatever you buy, so you might want 
to get something on order soon.

Mark
N5PRD


Sent from my iPhone


On Aug 9, 2021, at 8:13 PM, Gus Bernard via BVARC  wrote:
Those Astron linears (RS Series) are bullet proof units that last forever.  
I have an ages old RS-12A that powers all the ancillary equipment on my 
desk.  It just runs, quiet and RF noise-free!


Gus
K5GMB

On Mon, Aug 9, 2021 at 8:07 PM Bruce via BVARC  wrote:
I bought a small Astron RS-20A when I was first licensed in 1993 and
keep it now for taking to field day or portable. I have been using an
Astron RS-35A since around 1995 when I got into HF and was using 2
radios. It has enough power for an HF radio, satellite radio, the TNC,
and another 2m radio. I also power the ICOM CIT level converter and the
Yaesu rotor control interface for tracking satellites. Plenty of power
and has run for many years without a hiccup. I have it plugged into a
Wemo switch which allows me to turn the power on when I am not at home
and also turn the power off when I stop operating and sometimes forget
to kill the power to the power supply.

I have been very happy with the Astron products in fact, I never have to
worry about them. They are like a Timex, they just keep on ticking. Okay
for the young ones here that do not know what a Timex is ;-), like an
Eveready Bunny that never stops.

73...bruce

--

Bruce Paige, KK5DO

AMSAT Director Contests and Awards
AMSAT Board Member 2016-2022

ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE

Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
Also live streaming MP3 at http://www.amsatnet.com
Podcast at http://www.amsatnet.com/podcast.xml or iTunes

Latest satellite news on the ARRL Audio News
http://www.arrl.org

AMSAT on Twitter http://www.twitter.com/amsat




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Re: [BVARC] Power Supply

[Mark Brantana via BVARC]

I have been very happy with my MegaWatt 40 amp. Some small fan noise, though. 

I bet you will run into supply issues whatever you buy, so you might want to 
get something on order soon. 
Mark 
N5PRD 

Sent from my iPhone

> On Aug 9, 2021, at 8:13 PM, Gus Bernard via BVARC  wrote:
> 
> 
> Those Astron linears (RS Series) are bullet proof units that last forever.  I 
> have an ages old RS-12A that powers all the ancillary equipment on my desk.  
> It just runs, quiet and RF noise-free!
> 
> Gus
> K5GMB
> 
>> On Mon, Aug 9, 2021 at 8:07 PM Bruce via BVARC  wrote:
>> I bought a small Astron RS-20A when I was first licensed in 1993 and 
>> keep it now for taking to field day or portable. I have been using an 
>> Astron RS-35A since around 1995 when I got into HF and was using 2 
>> radios. It has enough power for an HF radio, satellite radio, the TNC,  
>> and another 2m radio. I also power the ICOM CIT level converter and the 
>> Yaesu rotor control interface for tracking satellites. Plenty of power 
>> and has run for many years without a hiccup. I have it plugged into a 
>> Wemo switch which allows me to turn the power on when I am not at home 
>> and also turn the power off when I stop operating and sometimes forget 
>> to kill the power to the power supply.
>> 
>> I have been very happy with the Astron products in fact, I never have to 
>> worry about them. They are like a Timex, they just keep on ticking. Okay 
>> for the young ones here that do not know what a Timex is ;-), like an 
>> Eveready Bunny that never stops.
>> 
>> 73...bruce
>> 
>> -- 
>> 
>> Bruce Paige, KK5DO
>> 
>> AMSAT Director Contests and Awards
>> AMSAT Board Member 2016-2022
>> 
>> ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE
>> 
>> Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
>> Also live streaming MP3 at http://www.amsatnet.com
>> Podcast at http://www.amsatnet.com/podcast.xml or iTunes
>> 
>> Latest satellite news on the ARRL Audio News
>> http://www.arrl.org
>> 
>> AMSAT on Twitter http://www.twitter.com/amsat
>> 
>> 
>> 
>> 
>> Brazos Valley Amateur Radio Club
>> 
>> BVARC mailing list
>> BVARC@bvarc.org
>> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
>> Publicly available archives are available here: 
>> https://www.mail-archive.com/bvarc@bvarc.org/ 
> 
> Brazos Valley Amateur Radio Club
> 
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> BVARC@bvarc.org
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> Publicly available archives are available here: 
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Re: [BVARC] Power Supply

[Brent Hetrick via BVARC]

Thanks to everyone for their input, especially the little nugget about Dave 
Casler.

Brent
KI5JMF



On Aug 9, 2021, at 8:17 PM, Gus Bernard via BVARC  wrote:

Oh, and that RS-12A also runs my Kenwood V71A VHF set - no problem.  Picked it 
up used for $20.

Gus

On Mon, Aug 9, 2021 at 8:13 PM Gus Bernard mailto:gneln...@gmail.com>> wrote:
Those Astron linears (RS Series) are bullet proof units that last forever.  I 
have an ages old RS-12A that powers all the ancillary equipment on my desk.  It 
just runs, quiet and RF noise-free!

Gus
K5GMB

On Mon, Aug 9, 2021 at 8:07 PM Bruce via BVARC mailto:bvarc@bvarc.org>> wrote:
I bought a small Astron RS-20A when I was first licensed in 1993 and 
keep it now for taking to field day or portable. I have been using an 
Astron RS-35A since around 1995 when I got into HF and was using 2 
radios. It has enough power for an HF radio, satellite radio, the TNC,  
and another 2m radio. I also power the ICOM CIT level converter and the 
Yaesu rotor control interface for tracking satellites. Plenty of power 
and has run for many years without a hiccup. I have it plugged into a 
Wemo switch which allows me to turn the power on when I am not at home 
and also turn the power off when I stop operating and sometimes forget 
to kill the power to the power supply.

I have been very happy with the Astron products in fact, I never have to 
worry about them. They are like a Timex, they just keep on ticking. Okay 
for the young ones here that do not know what a Timex is ;-), like an 
Eveready Bunny that never stops.

73...bruce

-- 

Bruce Paige, KK5DO

AMSAT Director Contests and Awards
AMSAT Board Member 2016-2022

ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE

Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
Also live streaming MP3 at http://www.amsatnet.com 
Podcast at http://www.amsatnet.com/podcast.xml 
 or iTunes

Latest satellite news on the ARRL Audio News
http://www.arrl.org 

AMSAT on Twitter http://www.twitter.com/amsat 




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Re: [BVARC] Power Supply

[Gus Bernard via BVARC]

Oh, and that RS-12A also runs my Kenwood V71A VHF set - no problem.  Picked
it up used for $20.

Gus

On Mon, Aug 9, 2021 at 8:13 PM Gus Bernard  wrote:

> Those Astron linears (RS Series) are bullet proof units that last
> forever.  I have an ages old RS-12A that powers all the ancillary equipment
> on my desk.  It just runs, quiet and RF noise-free!
>
> Gus
> K5GMB
>
> On Mon, Aug 9, 2021 at 8:07 PM Bruce via BVARC  wrote:
>
>> I bought a small Astron RS-20A when I was first licensed in 1993 and
>> keep it now for taking to field day or portable. I have been using an
>> Astron RS-35A since around 1995 when I got into HF and was using 2
>> radios. It has enough power for an HF radio, satellite radio, the TNC,
>> and another 2m radio. I also power the ICOM CIT level converter and the
>> Yaesu rotor control interface for tracking satellites. Plenty of power
>> and has run for many years without a hiccup. I have it plugged into a
>> Wemo switch which allows me to turn the power on when I am not at home
>> and also turn the power off when I stop operating and sometimes forget
>> to kill the power to the power supply.
>>
>> I have been very happy with the Astron products in fact, I never have to
>> worry about them. They are like a Timex, they just keep on ticking. Okay
>> for the young ones here that do not know what a Timex is ;-), like an
>> Eveready Bunny that never stops.
>>
>> 73...bruce
>>
>> --
>>
>> Bruce Paige, KK5DO
>>
>> AMSAT Director Contests and Awards
>> AMSAT Board Member 2016-2022
>>
>> ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE
>>
>> Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
>> Also live streaming MP3 at http://www.amsatnet.com
>> Podcast at http://www.amsatnet.com/podcast.xml or iTunes
>>
>> Latest satellite news on the ARRL Audio News
>> http://www.arrl.org
>>
>> AMSAT on Twitter http://www.twitter.com/amsat
>>
>>
>>
>> 
>> Brazos Valley Amateur Radio Club
>>
>> BVARC mailing list
>> BVARC@bvarc.org
>> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
>> Publicly available archives are available here:
>> https://www.mail-archive.com/bvarc@bvarc.org/
>>
>

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Re: [BVARC] Power Supply

[Gus Bernard via BVARC]

Those Astron linears (RS Series) are bullet proof units that last forever.
I have an ages old RS-12A that powers all the ancillary equipment on my
desk.  It just runs, quiet and RF noise-free!

Gus
K5GMB

On Mon, Aug 9, 2021 at 8:07 PM Bruce via BVARC  wrote:

> I bought a small Astron RS-20A when I was first licensed in 1993 and
> keep it now for taking to field day or portable. I have been using an
> Astron RS-35A since around 1995 when I got into HF and was using 2
> radios. It has enough power for an HF radio, satellite radio, the TNC,
> and another 2m radio. I also power the ICOM CIT level converter and the
> Yaesu rotor control interface for tracking satellites. Plenty of power
> and has run for many years without a hiccup. I have it plugged into a
> Wemo switch which allows me to turn the power on when I am not at home
> and also turn the power off when I stop operating and sometimes forget
> to kill the power to the power supply.
>
> I have been very happy with the Astron products in fact, I never have to
> worry about them. They are like a Timex, they just keep on ticking. Okay
> for the young ones here that do not know what a Timex is ;-), like an
> Eveready Bunny that never stops.
>
> 73...bruce
>
> --
>
> Bruce Paige, KK5DO
>
> AMSAT Director Contests and Awards
> AMSAT Board Member 2016-2022
>
> ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE
>
> Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
> Also live streaming MP3 at http://www.amsatnet.com
> Podcast at http://www.amsatnet.com/podcast.xml or iTunes
>
> Latest satellite news on the ARRL Audio News
> http://www.arrl.org
>
> AMSAT on Twitter http://www.twitter.com/amsat
>
>
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

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Re: [BVARC] Power Supply

[Bruce via BVARC]

I bought a small Astron RS-20A when I was first licensed in 1993 and 
keep it now for taking to field day or portable. I have been using an 
Astron RS-35A since around 1995 when I got into HF and was using 2 
radios. It has enough power for an HF radio, satellite radio, the TNC,  
and another 2m radio. I also power the ICOM CIT level converter and the 
Yaesu rotor control interface for tracking satellites. Plenty of power 
and has run for many years without a hiccup. I have it plugged into a 
Wemo switch which allows me to turn the power on when I am not at home 
and also turn the power off when I stop operating and sometimes forget 
to kill the power to the power supply.


I have been very happy with the Astron products in fact, I never have to 
worry about them. They are like a Timex, they just keep on ticking. Okay 
for the young ones here that do not know what a Timex is ;-), like an 
Eveready Bunny that never stops.


73...bruce

--

Bruce Paige, KK5DO
 
AMSAT Director Contests and Awards

AMSAT Board Member 2016-2022
  
ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE
  
Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*

Also live streaming MP3 at http://www.amsatnet.com
Podcast at http://www.amsatnet.com/podcast.xml or iTunes
  
Latest satellite news on the ARRL Audio News

http://www.arrl.org

AMSAT on Twitter http://www.twitter.com/amsat




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Re: [BVARC] Power Supply

[Gus Bernard via BVARC]

See, for example from Dave Casler, https://youtu.be/w4T_Q5gr41c

However, I would suggest a 20-25A supply, in case you ever get your General
and want to power a 100W HF set, along with everything else in your shack.

Gus
K5GMB

On Mon, Aug 9, 2021 at 2:07 PM Brent Hetrick via BVARC 
wrote:

> I’m a newbie looking for recommendations for a DC power supply for a dual
> band transceiver.  13A max current requirement.  I’m leaning towards a
> switching power supply rather than a linear unit.
>
> There are too many different manufactures so I’m looking for other users
> input on brands that are reliable and provide clean power to the radio.
>
> Thanks in advance,
>
> Brent
> KI5JMF
>
>
>
>
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

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Re: [BVARC] Power Supply

[Keith Dutson via BVARC]

 All of my power supplies are Astron switching units with meters.  Two were 
purchased in 2003 for a DXpedition to Falkland Islands.  These have been hauled 
around on six more DXpeditions around the globe.  Since then I have purchased 
three more.  All are currently in use in my ham shack.
73, Keith NM5G
On Monday, August 9, 2021, 04:20:39 PM CDT, Philip Bartash via BVARC 
 wrote:  
 
 What Mike and Jeff said!
73PhilW2OZB

On Mon, Aug 9, 2021 at 3:44 PM Michael Amos via BVARC  wrote:


 

I’ll second that one as well.  I’ve got one that I run MY HF rig on as well as 
the small amount of power it takes to run the SWR meter as well.  It works 
GREAT and is virtually noise free.

 

Mike – KG4NDS

 

 

I like those too. 

I'd get a 25 amp, in case you want to use a 100w hf rig later. 25 amp is sort 
of "standard".

 

On Monday, August 9, 2021, 02:20:09 PM CDT, James Burrough via BVARC 
 wrote:

 

 

I have used the MFJ-4230 for years and have been very happy with it. About $100 
from any of the major ham equipment suppliers.

 

On Monday, August 9, 2021, 02:07:13 PM CDT, Brent Hetrick via BVARC 
 wrote:

 

 

I’m a newbie looking for recommendations for a DC power supply for a dual band 
transceiver.  13A max current requirement.  I’m leaning towards a switching 
power supply rather than a linear unit.

 

There are too many different manufactures so I’m looking for other users input 
on brands that are reliable and provide clean power to the radio.

 

Thanks in advance,

 

Brent

KI5JMF

 

 

 

 

 



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Re: [BVARC] Power Supply

[Philip Bartash via BVARC]

What Mike and Jeff said!

73
Phil
W2OZB

On Mon, Aug 9, 2021 at 3:44 PM Michael Amos via BVARC 
wrote:

>
>
> I’ll second that one as well.  I’ve got one that I run MY HF rig on as
> well as the small amount of power it takes to run the SWR meter as well.
> It works GREAT and is virtually noise free.
>
>
>
> Mike – KG4NDS
>
>
>
>
>
> I like those too.
>
> I'd get a 25 amp, in case you want to use a 100w hf rig later. 25 amp is
> sort of "standard".
>
>
>
> On Monday, August 9, 2021, 02:20:09 PM CDT, James Burrough via BVARC <
> bvarc@bvarc.org> wrote:
>
>
>
>
>
> I have used the MFJ-4230 for years and have been very happy with it. About
> $100 from any of the major ham equipment suppliers.
>
>
>
> On Monday, August 9, 2021, 02:07:13 PM CDT, Brent Hetrick via BVARC <
> bvarc@bvarc.org> wrote:
>
>
>
>
>
> I’m a newbie looking for recommendations for a DC power supply for a dual
> band transceiver.  13A max current requirement.  I’m leaning towards a
> switching power supply rather than a linear unit.
>
>
>
> There are too many different manufactures so I’m looking for other users
> input on brands that are reliable and provide clean power to the radio.
>
>
>
> Thanks in advance,
>
>
>
> Brent
>
> KI5JMF
>
>
>
>
>
>
>
>
>
>
>
> 
>
> Brazos Valley Amateur Radio Club
>
>
>
> BVARC mailing list
>
> BVARC@bvarc.org
>
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> 
>
> Publicly available archives are available here: 
> https://www.mail-archive.com/bvarc@bvarc.org/
>
> 
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
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> 
> Publicly available archives are available here: 
> https://www.mail-archive.com/bvarc@bvarc.org/
>
> 
> 
> Brazos Valley Amateur Radio Club
>
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Re: [BVARC] Power Supply

[Michael Amos via BVARC]

I'll second that one as well.  I've got one that I run MY HF rig on as well as 
the small amount of power it takes to run the SWR meter as well.  It works 
GREAT and is virtually noise free.

Mike - KG4NDS


I like those too.
I'd get a 25 amp, in case you want to use a 100w hf rig later. 25 amp is sort 
of "standard".

On Monday, August 9, 2021, 02:20:09 PM CDT, James Burrough via BVARC 
mailto:bvarc@bvarc.org>> wrote:


I have used the MFJ-4230 for years and have been very happy with it. About $100 
from any of the major ham equipment suppliers.

On Monday, August 9, 2021, 02:07:13 PM CDT, Brent Hetrick via BVARC 
mailto:bvarc@bvarc.org>> wrote:


I'm a newbie looking for recommendations for a DC power supply for a dual band 
transceiver.  13A max current requirement.  I'm leaning towards a switching 
power supply rather than a linear unit.

There are too many different manufactures so I'm looking for other users input 
on brands that are reliable and provide clean power to the radio.

Thanks in advance,

Brent
KI5JMF






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Re: [BVARC] Power Supply

[Jeffrey Carson via BVARC]

 I like those too. I'd get a 25 amp, in case you want to use a 100w hf rig 
later. 25 amp is sort of "standard".
On Monday, August 9, 2021, 02:20:09 PM CDT, James Burrough via BVARC 
 wrote:  
 
  I have used the MFJ-4230 for years and have been very happy with it. About 
$100 from any of the major ham equipment suppliers.
On Monday, August 9, 2021, 02:07:13 PM CDT, Brent Hetrick via BVARC 
 wrote:  
 
 I’m a newbie looking for recommendations for a DC power supply for a dual band 
transceiver.  13A max current requirement.  I’m leaning towards a switching 
power supply rather than a linear unit.

There are too many different manufactures so I’m looking for other users input 
on brands that are reliable and provide clean power to the radio.

Thanks in advance,

Brent
KI5JMF






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Re: [BVARC] Power Supply

[James Burrough via BVARC]

 I have used the MFJ-4230 for years and have been very happy with it. About 
$100 from any of the major ham equipment suppliers.
On Monday, August 9, 2021, 02:07:13 PM CDT, Brent Hetrick via BVARC 
 wrote:  
 
 I’m a newbie looking for recommendations for a DC power supply for a dual band 
transceiver.  13A max current requirement.  I’m leaning towards a switching 
power supply rather than a linear unit.

There are too many different manufactures so I’m looking for other users input 
on brands that are reliable and provide clean power to the radio.

Thanks in advance,

Brent
KI5JMF






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Re: [BVARC] Power Supply

[Jeff Greer via BVARC]

Buy one that is made for amateur radio.  Astron are good units, but they can be 
had from MFJ, Samlex, etc.  Just make sure it's "rated" for your use.  Some 
manufacturers rate them by peak output, and others use continuous output.  
(Peak will be higher than continuous).  R tends to run specials on them.


From: BVARC  on behalf of Brent Hetrick via BVARC 

Sent: Monday, August 9, 2021 2:07 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Brent Hetrick 
Subject: [BVARC] Power Supply

I’m a newbie looking for recommendations for a DC power supply for a dual band 
transceiver.  13A max current requirement.  I’m leaning towards a switching 
power supply rather than a linear unit.

There are too many different manufactures so I’m looking for other users input 
on brands that are reliable and provide clean power to the radio.

Thanks in advance,

Brent
KI5JMF






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Re: [BVARC] Power Supply

[Roy Storey via BVARC]

Brent,
I have had excellent results using JetStream JTPS - 28. I have 2 and really
like the fan control to reduce the fan noise.

Roy - W5TKZ

On Mon, Aug 9, 2021 at 2:07 PM Brent Hetrick via BVARC 
wrote:

> I’m a newbie looking for recommendations for a DC power supply for a dual
> band transceiver.  13A max current requirement.  I’m leaning towards a
> switching power supply rather than a linear unit.
>
> There are too many different manufactures so I’m looking for other users
> input on brands that are reliable and provide clean power to the radio.
>
> Thanks in advance,
>
> Brent
> KI5JMF
>
>
>
>
>
> 
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> BVARC@bvarc.org
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Publicly available archives are available here:
> https://www.mail-archive.com/bvarc@bvarc.org/
>

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[BVARC] Power Supply

[Brent Hetrick via BVARC]

I’m a newbie looking for recommendations for a DC power supply for a dual band 
transceiver.  13A max current requirement.  I’m leaning towards a switching 
power supply rather than a linear unit.

There are too many different manufactures so I’m looking for other users input 
on brands that are reliable and provide clean power to the radio.

Thanks in advance,

Brent
KI5JMF






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Re: [BVARC] Power supply for Field Day

[Ralph Cheek via BVARC]

Allen,
Have  multiple 12 volt power supplies at the house but we are in Norfolk, Va. 
this week.
I can call and tell you how how to get in and how to find them if you have time 
to run by my house.
73,
Ralph
Sent from my iPhone

> On Jun 17, 2018, at 2:46 PM, Allen Brier N5XZ via BVARC  
> wrote:
> 
> Hey guys, I need a 12VDC power supply for my K3 on Field Day. Anyone got a 
> spare to lend me? My linear supply is too big and heavy.
>  
> Thanks,
>  
> Allen R. Brier N5XZ
> 1515 Windloch Lane
> Richmond, Texas 77406-2553
> (281) 342-1882 (Home)
> (713) 705-4801 (Cell)
>  
> ___
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Re: [BVARC] Power supply for Field Day

[Jo Keener via BVARC]

I have one I can loan you it is a i5px by pyramid.

JLK

On Sun, Jun 17, 2018 at 2:20 PM, gmuller885--- via BVARC 
wrote:

> Allen
>Got you covered. Bringing a spare.  MFJ 4245 and a Astron ss-50.  Take
> your pick. I will take the other.
>
> Gerald Muller *K9GEM*
>
> *gmuller...@aol.com *
> In a message dated 6/17/2018 2:02:40 PM Central Standard Time,
> bvarc@bvarc.org writes:
>
> Sorry, only have the one I bought down.
>
> On Sun, Jun 17, 2018, 1:46 PM Allen Brier N5XZ via BVARC 
> wrote:
>
>> Hey guys, I need a 12VDC power supply for my K3 on Field Day. Anyone got
>> a spare to lend me? My linear supply is too big and heavy.
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Allen R. Brier N5XZ
>>
>> 1515 Windloch Lane
>>
>> Richmond, Texas 77406-2553
>>
>> (281) 342-1882 (Home)
>>
>> (713) 705-4801 (Cell)
>>
>>
>> ___
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>> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
>> Message delivered to ke8g@gmail.com
>
> ___
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>
>
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>
>
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Re: [BVARC] Power supply for Field Day

[gmuller885--- via BVARC]

Allen
   Got you covered. Bringing a spare.  MFJ 4245 and a Astron ss-50.  Take your 
pick. I will take the other.
 
Gerald Muller K9GEM
gmuller...@aol.com 
In a message dated 6/17/2018 2:02:40 PM Central Standard Time, bvarc@bvarc.org 
writes:

 
Sorry, only have the one I bought down.

On Sun, Jun 17, 2018, 1:46 PM Allen Brier N5XZ via BVARC  
wrote:
Hey guys, I need a 12VDC power supply for my K3 on Field Day. Anyone got a 
spare to lend me? My linear supply is too big and heavy.
 
Thanks,
 
Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, Texas 77406-2553
(281) 342-1882 (Home)
(713) 705-4801 (Cell)
 
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Re: [BVARC] Power supply for Field Day

[Jim Blanca via BVARC]

Sorry, only have the one I bought down.

On Sun, Jun 17, 2018, 1:46 PM Allen Brier N5XZ via BVARC 
wrote:

> Hey guys, I need a 12VDC power supply for my K3 on Field Day. Anyone got a
> spare to lend me? My linear supply is too big and heavy.
>
>
>
> Thanks,
>
>
>
> Allen R. Brier N5XZ
>
> 1515 Windloch Lane
>
> Richmond, Texas 77406-2553
>
> (281) 342-1882 (Home)
>
> (713) 705-4801 (Cell)
>
>
> ___
> BVARC mailing list
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> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
> Message delivered to ke8g@gmail.com
>
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Re: [BVARC] Power supply for Field Day

[Glenn Anderson via BVARC]

I'll bring an extra you you.
 Original message From: Allen Brier N5XZ via BVARC 
 Date: 6/17/18  13:46  (GMT-06:00) To: tdxs-l...@tdxs.net, 
bvarc@bvarc.org Cc: Allen Brier N5XZ  Subject: [BVARC] 
Power supply for Field Day 
Hey guys, I need a 12VDC power supply for my K3 on Field Day. Anyone got a 
spare to lend me? My linear supply is too big and heavy. Thanks, Allen R. Brier 
N5XZ1515 Windloch LaneRichmond, Texas 77406-2553(281) 342-1882 (Home)(713) 
705-4801 (Cell) ___
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[BVARC] Power supply for Field Day

[Allen Brier N5XZ via BVARC]

Hey guys, I need a 12VDC power supply for my K3 on Field Day. Anyone got a
spare to lend me? My linear supply is too big and heavy.

 

Thanks,

 

Allen R. Brier N5XZ

1515 Windloch Lane

Richmond, Texas 77406-2553

(281) 342-1882 (Home)

(713) 705-4801 (Cell)

 

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Re: [BVARC] Power supply

[Travis Burgess via BVARC]

Dummy loads:


http://www.mfjenterprises.com/Product.php?productid=MFJ-264 (I have this 
one, got it used)


=


http://www.mfjenterprises.com/Product.php?productid=MFJ-260C


Travis

K5HTB




-

No trees were harmed in the production of this message, however, a great many 
electrons were

terribly inconvenienced.




From: BVARC <bvarc-boun...@bvarc.org> on behalf of Gary Sitton via BVARC 
<bvarc@bvarc.org>
Sent: Tuesday, April 11, 2017 11:53 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB
Cc: Gary Sitton
Subject: Re: [BVARC] Power supply

Gayle:

   Another indispensable item for your shack is a
100 W., 50 Ohm dummy load.  MFJ sells one for
about $60 + tax and shipping (MFJ-262B, PL-259
connector) .  This one is convection air cooled and
will take 100 W. for about 10 Sec. continuous and
is DC to 1 GHz 1:1 SWR. Get this one or one like it.

73s,
Gary Sitton, K5AMH
gasit...@comcast.net<mailto:gasit...@comcast.net>

On 4/11/2017 11:32, Larry via BVARC wrote:
Gayle,
What’s your SWR? If you’ve got hi SWR the output fold-back circuitry will 
reduce output. and you will only see full output in a key-down (CW) mode. Voice 
has a low duty factor so you would only see a low average power output in that 
circumstance.
Larry

From: Gayle Dotts via BVARC
Sent: Saturday, 8 April, 2017 2:17 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB
Cc: Gayle Dotts
Subject: [BVARC] Power supply

Got a question on pwer supply for my Yaesu FT-920.
The FT-920 manual says: 3.5V DC….Rx(w/signal) @2.5A, Tx (100W) @22.0A.  My 
current power supply is a MFJ-4225MV 25A switching power.  Is this MFJ will 
power the Yaesu but I don’t really see the 100W on output Tx, although the amp 
meter on the MFJ shows 6-12A while transmitting running low to high on the RF 
PWR knob on the FT-920.  Do I need to increase the power supply??  Please 
advise.

Thanl you,
Gayle Dotts
KF5LVZ


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Re: [BVARC] Power supply

[Gary Sitton via BVARC]

Gayle:

   Another indispensable item for your shack is a
100 W., 50 Ohm dummy load.  MFJ sells one for
about $60 + tax and shipping (MFJ-262B, PL-259
connector) .  This one is convection air cooled and
will take 100 W. for about 10 Sec. continuous and
is DC to 1 GHz 1:1 SWR. Get this one or one like it.

73s,
Gary Sitton, K5AMH
gasit...@comcast.net

On 4/11/2017 11:32, Larry via BVARC wrote:

Gayle,
What’s your SWR? If you’ve got hi SWR the output fold-back circuitry 
will reduce output. and you will only see full output in a key-down 
(CW) mode. Voice has a low duty factor so you would only see a low 
average power output in that circumstance.

Larry
*From:* Gayle Dotts via BVARC
*Sent:* Saturday, 8 April, 2017 2:17 PM
*To:* BRAZOS VALLEY AMATEUR RADIO CLUB
*Cc:* Gayle Dotts
*Subject:* [BVARC] Power supply

Got a question on pwer supply for my Yaesu FT-920.

The FT-920 manual says: 3.5V DC….Rx(w/signal) @2.5A, Tx (100W) 
@22.0A.  My current power supply is a MFJ-4225MV 25A switching power.  
Is this MFJ will power the Yaesu but I don’t really see the 100W on 
output Tx, although the amp meter on the MFJ shows 6-12A while 
transmitting running low to high on the RF PWR knob on the FT-920.  Do 
I need to increase the power supply??  Please advise.


Thanl you,

Gayle Dotts

KF5LVZ


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Re: [BVARC] Power supply

[Larry via BVARC]

Gayle,
What’s your SWR? If you’ve got hi SWR the output fold-back circuitry will 
reduce output. and you will only see full output in a key-down (CW) mode. Voice 
has a low duty factor so you would only see a low average power output in that 
circumstance.
Larry

From: Gayle Dotts via BVARC 
Sent: Saturday, 8 April, 2017 2:17 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB 
Cc: Gayle Dotts 
Subject: [BVARC] Power supply

Got a question on power supply for my Yaesu FT-920.  

The FT-920 manual says: 13.5V DC….Rx(w/signal) @2.5A, Tx (100W) @22.0A.  My 
current power supply is a MFJ-4225MV 25A switching power.  Is this MFJ will 
power the Yaesu but I don’t really see the 100W on output Tx, although the amp 
meter on the MFJ shows 6-12A while transmitting running low to high on the RF 
PWR knob on the FT-920.  Do I need to increase the power supply??  Please 
advise.



Thanl you,

Gayle Dotts

KF5LVZ




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Re: [BVARC] Power supply

[Gayle Dotts via BVARC]

Thanks Gary,

Working with it tonight...Home Depot run produced a volt-ohm meter per your
suggestion. I'll run CW and investigate further.  Was on the roof all
afternoon with my antenna chasing down RF reported in my signals, glad to
say I found the culprit and didn't fall off the roof.

73
Gayle Dotts
KF%LVZ

On Sat, Apr 8, 2017 at 7:53 PM, Gayle Dotts  wrote:

> Thanks will do.
>
> On Sat, Apr 8, 2017 at 7:27 PM, Gary Sitton via BVARC 
> wrote:
>
>> You need to measure the voltage as I indicated with the rig in CW mode
>> into an antenna or whatever you used before when you measured the power
>> output.  Now a cheap but accurate digital volt-ohm meter will cost as
>> little as $10.  A small investment in your hobby I think.
>>
>> Gary, K5AMH
>>
>> Sent with AquaMail for Android
>> http://www.aqua-mail.com
>>
>> On April 8, 2017 5:27:52 PM Gayle Dotts via BVARC 
>> wrote:
>>
>>> Hi Gary,
>>>
>>> I don't have anything to measure the actual load on the FT-920,
>>> unfortunately no dummy load available either. Bought the radio used and
>>> without a power chord.  I ordered a Yaesu power chord thru MFJ and it came
>>> with two inline fuses one on the positive side one on the negative side,
>>> both rated at 20A and look good.  Question If I might ask still is
>>> MFJ-4225MV@25A . too under powered or acceptable barely but could
>>> be better.  Thank you for your input I appreciate it!
>>>
>>> 73
>>> Gayle Dotts
>>> KF5LVZ
>>>
>>> On Sat, Apr 8, 2017 at 2:29 PM, Gary Sitton via BVARC 
>>> wrote:
>>>
 Gayle:

Measure the actual under load (100 W. CW) voltage
 at the back of the FT-920.  Faulty inline fuse holders
 or connectors, and wiring losses can cost you 1/2 v. or
 more.  You need a full 13.5 to 13.8 VDC at the back.
 Since power to a R Ohm load is V*V/R, a relative power
 line voltage drop will result in ~twice a relative power
 loss for a fixed R.

 73s,
 Gary Sitton, K5AMH
 gasit...@comcast.net

 On 4/8/2017 14:17, Gayle Dotts via BVARC wrote:

 Got a question on power supply for my Yaesu FT-920.

 The FT-920 manual says: 13.5V DC….Rx(w/signal) @2.5A, Tx (100W)
 @22.0A.  My current power supply is a MFJ-4225MV 25A switching power.  Is
 this MFJ will power the Yaesu but I don’t really see the 100W on output Tx,
 although the amp meter on the MFJ shows 6-12A while transmitting running
 low to high on the RF PWR knob on the FT-920.  Do I need to increase the
 power supply??  Please advise.


 Thanl you,

 Gayle Dotts

 KF5LVZ


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Re: [BVARC] Power supply

[Rick Hiller -- W5RH via BVARC]

Gayle...you asked aboutthe PS.

Specs -
Current out -- continuous 22 Amps at 13.8 Vdc
Front Panel Adjustable Voltage (9-15 Vdc)

22A continuous is plenty for 100 W xcvr.

Adjust the DC Volt knob for a reading of 13.8V on the meter.

Maybe you are meassuring in the AM mode...bet your rig goes to 50 W max in
AM mode.

Key down CW, max smoke should be 100 W+ into a dummy load or into a matched
>1.5:1 antenna system.

If you do not have a dummy load then you have no knowledge of the Z that
the xmitter output is seeing, so the output is dependent on the Ant/TL Z.

What does the SWR meter in the rig read?   Close to 1:1?if higher than
1.5:1 then the xcvr will cut back power out.

Gayle, I am grasping for straws aboveyou have got to establish a base
line in your measurements/operations and to do that you need standards --
dummy load, volt Ohm meter, watt meter, etc.  Buying a used rig without the
faculties to measure the performance is not good practise.   Get some test
gear and you will improve your Ham Radio experience immensily.  Plus you
will understand what is going on when the rig ain't werkin.

73...Rick -- W5RH







Rick Hiller
*The Radio Hotel*  -- W5RH



On Sat, Apr 8, 2017 at 7:27 PM, Gary Sitton via BVARC 
wrote:

> You need to measure the voltage as I indicated with the rig in CW mode
> into an antenna or whatever you used before when you measured the power
> output.  Now a cheap but accurate digital volt-ohm meter will cost as
> little as $10.  A small investment in your hobby I think.
>
> Gary, K5AMH
>
> Sent with AquaMail for Android
> http://www.aqua-mail.com
>
> On April 8, 2017 5:27:52 PM Gayle Dotts via BVARC  wrote:
>
>> Hi Gary,
>>
>> I don't have anything to measure the actual load on the FT-920,
>> unfortunately no dummy load available either. Bought the radio used and
>> without a power chord.  I ordered a Yaesu power chord thru MFJ and it came
>> with two inline fuses one on the positive side one on the negative side,
>> both rated at 20A and look good.  Question If I might ask still is
>> MFJ-4225MV@25A . too under powered or acceptable barely but could be
>> better.  Thank you for your input I appreciate it!
>>
>> 73
>> Gayle Dotts
>> KF5LVZ
>>
>> On Sat, Apr 8, 2017 at 2:29 PM, Gary Sitton via BVARC 
>> wrote:
>>
>>> Gayle:
>>>
>>>Measure the actual under load (100 W. CW) voltage
>>> at the back of the FT-920.  Faulty inline fuse holders
>>> or connectors, and wiring losses can cost you 1/2 v. or
>>> more.  You need a full 13.5 to 13.8 VDC at the back.
>>> Since power to a R Ohm load is V*V/R, a relative power
>>> line voltage drop will result in ~twice a relative power
>>> loss for a fixed R.
>>>
>>> 73s,
>>> Gary Sitton, K5AMH
>>> gasit...@comcast.net
>>>
>>> On 4/8/2017 14:17, Gayle Dotts via BVARC wrote:
>>>
>>> Got a question on power supply for my Yaesu FT-920.
>>>
>>> The FT-920 manual says: 13.5V DC….Rx(w/signal) @2.5A, Tx (100W)
>>> @22.0A.  My current power supply is a MFJ-4225MV 25A switching power.  Is
>>> this MFJ will power the Yaesu but I don’t really see the 100W on output Tx,
>>> although the amp meter on the MFJ shows 6-12A while transmitting running
>>> low to high on the RF PWR knob on the FT-920.  Do I need to increase the
>>> power supply??  Please advise.
>>>
>>>
>>> Thanl you,
>>>
>>> Gayle Dotts
>>>
>>> KF5LVZ
>>>
>>>
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>>>
>>>
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Re: [BVARC] Power supply

[Gayle Dotts via BVARC]

Thanks will do.

On Sat, Apr 8, 2017 at 7:27 PM, Gary Sitton via BVARC 
wrote:

> You need to measure the voltage as I indicated with the rig in CW mode
> into an antenna or whatever you used before when you measured the power
> output.  Now a cheap but accurate digital volt-ohm meter will cost as
> little as $10.  A small investment in your hobby I think.
>
> Gary, K5AMH
>
> Sent with AquaMail for Android
> http://www.aqua-mail.com
>
> On April 8, 2017 5:27:52 PM Gayle Dotts via BVARC  wrote:
>
>> Hi Gary,
>>
>> I don't have anything to measure the actual load on the FT-920,
>> unfortunately no dummy load available either. Bought the radio used and
>> without a power chord.  I ordered a Yaesu power chord thru MFJ and it came
>> with two inline fuses one on the positive side one on the negative side,
>> both rated at 20A and look good.  Question If I might ask still is
>> MFJ-4225MV@25A . too under powered or acceptable barely but could be
>> better.  Thank you for your input I appreciate it!
>>
>> 73
>> Gayle Dotts
>> KF5LVZ
>>
>> On Sat, Apr 8, 2017 at 2:29 PM, Gary Sitton via BVARC 
>> wrote:
>>
>>> Gayle:
>>>
>>>Measure the actual under load (100 W. CW) voltage
>>> at the back of the FT-920.  Faulty inline fuse holders
>>> or connectors, and wiring losses can cost you 1/2 v. or
>>> more.  You need a full 13.5 to 13.8 VDC at the back.
>>> Since power to a R Ohm load is V*V/R, a relative power
>>> line voltage drop will result in ~twice a relative power
>>> loss for a fixed R.
>>>
>>> 73s,
>>> Gary Sitton, K5AMH
>>> gasit...@comcast.net
>>>
>>> On 4/8/2017 14:17, Gayle Dotts via BVARC wrote:
>>>
>>> Got a question on power supply for my Yaesu FT-920.
>>>
>>> The FT-920 manual says: 13.5V DC….Rx(w/signal) @2.5A, Tx (100W)
>>> @22.0A.  My current power supply is a MFJ-4225MV 25A switching power.  Is
>>> this MFJ will power the Yaesu but I don’t really see the 100W on output Tx,
>>> although the amp meter on the MFJ shows 6-12A while transmitting running
>>> low to high on the RF PWR knob on the FT-920.  Do I need to increase the
>>> power supply??  Please advise.
>>>
>>>
>>> Thanl you,
>>>
>>> Gayle Dotts
>>>
>>> KF5LVZ
>>>
>>>
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>>>
>>>
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Re: [BVARC] Power supply

[Gary Sitton via BVARC]

You need to measure the voltage as I indicated with the rig in CW mode into 
an antenna or whatever you used before when you measured the power output.  
Now a cheap but accurate digital volt-ohm meter will cost as little as $10. 
A small investment in your hobby I think.


Gary, K5AMH



Sent with AquaMail for Android
http://www.aqua-mail.com


On April 8, 2017 5:27:52 PM Gayle Dotts via BVARC  wrote:


Hi Gary,

I don't have anything to measure the actual load on the FT-920,
unfortunately no dummy load available either. Bought the radio used and
without a power chord.  I ordered a Yaesu power chord thru MFJ and it came
with two inline fuses one on the positive side one on the negative side,
both rated at 20A and look good.  Question If I might ask still is
MFJ-4225MV@25A . too under powered or acceptable barely but could be
better.  Thank you for your input I appreciate it!

73
Gayle Dotts
KF5LVZ

On Sat, Apr 8, 2017 at 2:29 PM, Gary Sitton via BVARC 
wrote:


Gayle:

   Measure the actual under load (100 W. CW) voltage
at the back of the FT-920.  Faulty inline fuse holders
or connectors, and wiring losses can cost you 1/2 v. or
more.  You need a full 13.5 to 13.8 VDC at the back.
Since power to a R Ohm load is V*V/R, a relative power
line voltage drop will result in ~twice a relative power
loss for a fixed R.

73s,
Gary Sitton, K5AMH
gasit...@comcast.net

On 4/8/2017 14:17, Gayle Dotts via BVARC wrote:

Got a question on power supply for my Yaesu FT-920.

The FT-920 manual says: 13.5V DC….Rx(w/signal) @2.5A, Tx (100W)
@22.0A.  My current power supply is a MFJ-4225MV 25A switching power.  Is
this MFJ will power the Yaesu but I don’t really see the 100W on output Tx,
although the amp meter on the MFJ shows 6-12A while transmitting running
low to high on the RF PWR knob on the FT-920.  Do I need to increase the
power supply??  Please advise.


Thanl you,

Gayle Dotts

KF5LVZ


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Re: [BVARC] Power supply

[Rick Hiller via BVARC]

Gayle,

As Gary suggested, measure the voltage right at the rig.after the fuses and 
even maybe inside the rear panel.   Should be 13.5v +
If not adjust the mfj for the correct voltage.  Voltage drop over a looong 
power cord can be a culprit.
GL.Rick. W5RH

Sent from my i-Thingamajig

> On Apr 8, 2017, at 5:27 PM, Gayle Dotts via BVARC  wrote:
> 
> Hi Gary,
> 
> I don't have anything to measure the actual load on the FT-920, unfortunately 
> no dummy load available either. Bought the radio used and without a power 
> chord.  I ordered a Yaesu power chord thru MFJ and it came with two inline 
> fuses one on the positive side one on the negative side, both rated at 20A 
> and look good.  Question If I might ask still is MFJ-4225MV@25A . too 
> under powered or acceptable barely but could be better.  Thank you for your 
> input I appreciate it!
> 
> 73
> Gayle Dotts
> KF5LVZ
> 
>> On Sat, Apr 8, 2017 at 2:29 PM, Gary Sitton via BVARC  
>> wrote:
>> Gayle:
>> 
>>Measure the actual under load (100 W. CW) voltage 
>> at the back of the FT-920.  Faulty inline fuse holders 
>> or connectors, and wiring losses can cost you 1/2 v. or 
>> more.  You need a full 13.5 to 13.8 VDC at the back.
>> Since power to a R Ohm load is V*V/R, a relative power 
>> line voltage drop will result in ~twice a relative power 
>> loss for a fixed R.
>> 
>> 73s,
>> Gary Sitton, K5AMH 
>> gasit...@comcast.net 
>>  
>>> On 4/8/2017 14:17, Gayle Dotts via BVARC wrote:
>>> Got a question on power supply for my Yaesu FT-920. 
>>> 
>>> The FT-920 manual says: 13.5V   DC….Rx(w/signal) @2.5A, Tx 
>>> (100W) @22.0A.  My current power supply is a MFJ-4225MV 25A switching 
>>> power.  Is this MFJ will power the Yaesu but I don’t really see the 100W on 
>>> output Tx, although the amp meter on the MFJ shows 6-12A while transmitting 
>>> running low to high on the RF PWR knob on the FT-920.  Do I need to 
>>> increase the power supply??  Please advise.
>>> 
>>> 
>>> Thanl you,
>>> 
>>> Gayle Dotts
>>> 
>>> KF5LVZ
>>> 
>>> 
>>> 
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>> 
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Re: [BVARC] Power supply

[Gary Sitton via BVARC]

Gayle:

   Measure the actual under load (100 W. CW) voltage
at the back of the FT-920.  Faulty inline fuse holders
or connectors, and wiring losses can cost you 1/2 v. or
more.  You need a full 13.5 to 13.8 VDC at the back.
Since power to a R Ohm load is V*V/R, a relative power
line voltage drop will result in ~twice a relative power
loss for a fixed R.

73s,
Gary Sitton, K5AMH
gasit...@comcast.net

On 4/8/2017 14:17, Gayle Dotts via BVARC wrote:


Got a question on power supply for my Yaesu FT-920.

The FT-920 manual says: 13.5V DC….Rx(w/signal) @2.5A, Tx (100W) 
@22.0A.  My current power supply is a MFJ-4225MV 25A switching power.  
Is this MFJ will power the Yaesu but I don’t really see the 100W on 
output Tx, although the amp meter on the MFJ shows 6-12A while 
transmitting running low to high on the RF PWR knob on the FT-920. Do 
I need to increase the power supply?? Please advise.



Thanl you,

Gayle Dotts

KF5LVZ



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[BVARC] Power supply

[Gayle Dotts via BVARC]

Got a question on power supply for my Yaesu FT-920.

The FT-920 manual says: 13.5V DC….Rx(w/signal) @2.5A, Tx (100W)
@22.0A.  My current power supply is a MFJ-4225MV 25A switching power.  Is
this MFJ will power the Yaesu but I don’t really see the 100W on output Tx,
although the amp meter on the MFJ shows 6-12A while transmitting running
low to high on the RF PWR knob on the FT-920.  Do I need to increase the
power supply??  Please advise.


Thanl you,

Gayle Dotts

KF5LVZ
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Re: [BVARC] Power Supply for Overseas Use

[Keith Dutson via BVARC]

Kevin,

 

I took my two Astron SS25M units overseas.  They have a switch for 110/220.
You need a power strip with 220V plug.  I got the European 220 plug (as used
in UK) and wired it to an old power strip with 110 plug cut off.  This setup
was used in Falkland Islands and Malta.

 

Some power supplies will accept from 110 to 240 volts input.  For these you
need a US 110 to EU 220 converter plug.  Should be able to locate this using
Google.  I may have one in my junque box.

 

Gud luck es let us know what call sign you will be using.

 

73, Keith NM5G

VP8DXL, 9H3KD, 5J0E, YN2MG

 

From: BVARC [mailto:bvarc-boun...@bvarc.org] On Behalf Of Kevin Thornsberry
via BVARC
Sent: Saturday, February 20, 2016 10:32 PM
To: bvarc@bvarc.org
Cc: Kevin Thornsberry <kevin_thornsbe...@compuserve.com>
Subject: [BVARC] Power Supply for Overseas Use

 

I would like to find a power supply for overseas use (Angola).  Voltage
there is 220v 50 Hz.  I will have a step down transformer which will drop
the line voltage to 110v but I believe it will still be at 50 Hz.  Will this
be an issue for most power supplies built for use in the US (110v 60 Hz)?

 

Thanks.

 

--

Kevin Thornsberry (W5KLT)

(832) 370-6996

 

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Re: [BVARC] Power Supply for Overseas Use

[EMD Cebridge via BVARC]

A 60Hz transformer on 50Hz will heat up more and the current rating will be
reduced by 20% but the voltage out will not be affected. A 50Hz transformer
used on 60Hz will run cooler but otherwise normal operation. As far as power
supplies, most switching power supplies will work on both 120 & 230 V, some
have switches, some are automatic. All multi voltage power supplies will
work with 50 or 60 Hz I have an Astron 20 amp switcher, very RF quiet. Light
weight, work on both voltage & Hz. 

 

  _  

From: BVARC [mailto:bvarc-boun...@bvarc.org] On Behalf Of Michael Monsour
via BVARC
Sent: Sunday, February 21, 2016 7:50 AM
To: BRAZOS VALLEY AMATEUR RADIO CLUB
Cc: Michael Monsour; Kevin Thornsberry
Subject: Re: [BVARC] Power Supply for Overseas Use

 

This is an interesting question...

For 35 years I worked on equipment made in Australia and later France

For a transformer made for 60Hz operation and using it on 50Hz  the output
will be approximately 80%

A 50Hz transformer will see a voltage increase of approximately 120% using
60 Hz. Which is what I experienced on Australian built equipment.

On Astron linear power supplies the voltage spec does not say anything about
frequency.

Before purchasing anything , one needs to see what the factory spec says.

M Monsour AC0TX

 

On Sun, Feb 21, 2016 at 2:16 AM, Jon Noxon via BVARC <bvarc@bvarc.org>
wrote:

Elecraft now sells the PowerWerx switcher after recommending them to any who
asked (I did when I ordered my K3), which has switched adjustment for
120/240 V input. Line Frequency is not relevant. This is an RF quiet PS and
uses the IEC power cord which you would get locally (standard desktop
computer power cable). The PS is available from the usual sources. Mine is
the one with the meters, but they are not really needed. I've owned it for
almost three years without a hint of trouble.

 

An equivalent linear PS will be much larger and heavier. See
http://www.powerwerx.com/power-supplies/powerwerx-30-amp-desktop-switching-p
ower-supply-powerpoles.html

 

Jon KF5TFJ

 

On Sat, Feb 20, 2016 at 11:23 PM, Scott Mckee via BVARC <bvarc@bvarc.org>
wrote:

Kevin,

 

I lived in Germany 1989-91. I didn't find any problems using appropriate
voltage transformers.  Many power supplies now have a wide input range so
you only need to get the correct plug for that area. The frequency
difference might cause a problem with some time based devices.  Have a great
trip!


Scott, nt5sm 

 


On Feb 20, 2016, at 22:31, Kevin Thornsberry via BVARC <bvarc@bvarc.org>
wrote:

I would like to find a power supply for overseas use (Angola).  Voltage
there is 220v 50 Hz.  I will have a step down transformer which will drop
the line voltage to 110v but I believe it will still be at 50 Hz.  Will this
be an issue for most power supplies built for use in the US (110v 60 Hz)?

 

Thanks.

 

--

Kevin Thornsberry (W5KLT)

(832) <tel:%28832%29%20370-6996>  370-6996

 

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Re: [BVARC] Power Supply for Overseas Use

[Jon Noxon via BVARC]

Elecraft now sells the PowerWerx switcher after recommending them to any
who asked (I did when I ordered my K3), which has switched adjustment for
120/240 V input. Line Frequency is not relevant. This is an RF quiet PS and
uses the IEC power cord which you would get locally (standard desktop
computer power cable). The PS is available from the usual sources. Mine is
the one with the meters, but they are not really needed. I've owned it for
almost three years without a hint of trouble.

An equivalent linear PS will be much larger and heavier. See
http://www.powerwerx.com/power-supplies/powerwerx-30-amp-desktop-switching-power-supply-powerpoles.html

Jon KF5TFJ

On Sat, Feb 20, 2016 at 11:23 PM, Scott Mckee via BVARC 
wrote:

> Kevin,
>
> I lived in Germany 1989-91. I didn't find any problems using appropriate
> voltage transformers.  Many power supplies now have a wide input range so
> you only need to get the correct plug for that area. The frequency
> difference might cause a problem with some time based devices.  Have a
> great trip!
>
> Scott, nt5sm
>
>
> On Feb 20, 2016, at 22:31, Kevin Thornsberry via BVARC 
> wrote:
>
> I would like to find a power supply for overseas use (Angola).  Voltage
> there is 220v 50 Hz.  I will have a step down transformer which will drop
> the line voltage to 110v but I believe it will still be at 50 Hz.  Will
> this be an issue for most power supplies built for use in the US (110v 60
> Hz)?
>
>
>
> Thanks.
>
>
>
> --
>
> Kevin Thornsberry (W5KLT)
>
> (832) 370-6996
>
>
>
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>
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>
>
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Re: [BVARC] Power Supply for Overseas Use

[Scott Mckee via BVARC]

Kevin,

I lived in Germany 1989-91. I didn't find any problems using appropriate 
voltage transformers.  Many power supplies now have a wide input range so you 
only need to get the correct plug for that area. The frequency difference might 
cause a problem with some time based devices.  Have a great trip!

Scott, nt5sm 


> On Feb 20, 2016, at 22:31, Kevin Thornsberry via BVARC  
> wrote:
> 
> I would like to find a power supply for overseas use (Angola).  Voltage there 
> is 220v 50 Hz.  I will have a step down transformer which will drop the line 
> voltage to 110v but I believe it will still be at 50 Hz.  Will this be an 
> issue for most power supplies built for use in the US (110v 60 Hz)?
>  
> Thanks.
>  
> --
> Kevin Thornsberry (W5KLT)
> (832) 370-6996
>  
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[BVARC] Power Supply for Overseas Use

[Kevin Thornsberry via BVARC]

I would like to find a power supply for overseas use (Angola).  Voltage
there is 220v 50 Hz.  I will have a step down transformer which will drop
the line voltage to 110v but I believe it will still be at 50 Hz.  Will this
be an issue for most power supplies built for use in the US (110v 60 Hz)?

 

Thanks.

 

--

Kevin Thornsberry (W5KLT)

(832) 370-6996

 

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