Re: Compact AC Power Supply for 857D?
I am a budget minded person looking for good value. I've had good service out of my Alinco switching 30A power supply for about 15yrs. I generally run it a few hours every week for various nets. I do not monitor my radio 24x7.
Samlex would be a step up and there are models that have built in battery charging so you end up with a UPS.
You could pair any power supply and Epic Pwrgate and preferred battery chemistry to do the same thing, and a solar through the Epic Pwrgate. The Epic Pwrgate will handle 40W loads and accept 100W of PV. For a single 100W radio it should be more than sufficient.
I would only do the Lipo4 chemistry with mobile radios rated 13.8V +/- 15% that way you can safely run the radio while charging.
Going Samlex would probably be more robust, but there is a premium. Samlex fails from time to time like other equipment. Getting a repair done on Samlex is something that does happen. I am not sure about the Alinco or Epic PWRgate, unless its a warranty repair. The replacement price is low enough that replacing is getting close to bench time and shipping.
On Sat, Jan 20, 2024 at 14:33, Leonard K. Pennock <leonardpennock@...> wrote: Samlex SEC-1223 or Powerwerk SS-30DV are both physically small switching
power supplies that will provide all the power you need for the 857 and
other 100W HF radios.
Leonard K. Pennock
AD7AS
Those who walk bravely through life, unafraid of loss or failure,
find that they very rarely lose or fail.
On 1/20/24 12:18 PM, Patricia KI7IEE wrote:
> [Edited Message Follows]
>
> Hi folks. I have 6x 12v10Ah batteries that I rotate in my go-pack, and I
> have a dedicated LiFePo4 charger to top them off. I attach my radio's
> powerpoles directly to the batteries and can switch them out fast. That
> system works great on the road or in the shack... but I've been doing
> more work in the shack than on the go lately. So I've been considering
> getting an AC power supply. My dedicated shack space is small so I'd
> prefer something on the smaller/lighter side.?I assume anything that can
> power the 857 will also work for the 817.
>
> The FP-1030A the official recommendation per the 857 manual, costs about
> $250-300 US. DX still sells them.
> Pros: Bespoke specs, reliable performance, V / A meters. Cons: Price,
> bulk, weight.
>
> For the 817 I've found used Yaesu FP12s and FP4s can be found for $50 or
> less.
> Pros: compact, affordable, and reliable (if intact). Cons: Underpowered
> for the 857 past QRP.
>
> Any recommendations for a compact / affordable / reliable alternative
> for both radios would be greatly appreciated...
>
> PS: Of course I meant DC power supply... those fat fingers are hard at
> work today!
>
> Patricia KI7IEE
>
>
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Re: Compact AC Power Supply for 857D?
I have used the Jetstream JTPS32MAB 32-amp power supply w/Anderson Connectors for 5 years, on pretty much daily for anywhere between an hour or two to 24+ hours at a time connected to an IC-7300, IC-9700, and the FT-857D. I like that it has large full power output studs on the back (I have these connected to a 5-circuit fused power pole strip) along with two power pole connectors on the front face. The meter can be switched between volts and amps, and it has a "noise shift" knob on the front. I've never had to use that, probably because my noise floor is so high already that it doesn't give me an audible difference. This same power supply is out there under several names and with minor differences such as a cigarette lighter socket in place of the front power poles. Jetstream JTPS32MAB 30-amp power supply w/Anderson Connectors is available on Ebay now for $109.95 including shipping. Same thing, different name is on Amazon for $99.99 as "Tekpower Analog Display TP30SWI 30 Amp DC 13.8V Switching Power Supply with Noise Offset" It does have a fan that runs all the time and I have seen complaints about that, but I don't notice it any more than the rest of the plethora of fans in my office.
Jim S. KM6WWY
Fairfax, CA
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Leonard K. Pennock Sent: Saturday, January 20, 2024 11:34 AM To: [email protected]Subject: Re: [FT-857] Compact AC Power Supply for 857D? Samlex SEC-1223 or Powerwerk SS-30DV are both physically small switching power supplies that will provide all the power you need for the 857 and other 100W HF radios. Leonard K. Pennock AD7AS Those who walk bravely through life, unafraid of loss or failure, find that they very rarely lose or fail. On 1/20/24 12:18 PM, Patricia KI7IEE wrote: [Edited Message Follows]
Hi folks. I have 6x 12v10Ah batteries that I rotate in my go-pack, and
I have a dedicated LiFePo4 charger to top them off. I attach my
radio's powerpoles directly to the batteries and can switch them out
fast. That system works great on the road or in the shack... but I've
been doing more work in the shack than on the go lately. So I've been
considering getting an AC power supply. My dedicated shack space is
small so I'd prefer something on the smaller/lighter side. I assume
anything that can power the 857 will also work for the 817.
The FP-1030A the official recommendation per the 857 manual, costs
about
$250-300 US. DX still sells them.
Pros: Bespoke specs, reliable performance, V / A meters. Cons: Price,
bulk, weight.
For the 817 I've found used Yaesu FP12s and FP4s can be found for $50
or less.
Pros: compact, affordable, and reliable (if intact). Cons:
Underpowered for the 857 past QRP.
Any recommendations for a compact / affordable / reliable alternative
for both radios would be greatly appreciated...
PS: Of course I meant DC power supply... those fat fingers are hard at
work today!
Patricia KI7IEE
|
Re: Compact AC Power Supply for 857D?
Samlex SEC-1223 or Powerwerk SS-30DV are both physically small switching power supplies that will provide all the power you need for the 857 and other 100W HF radios.
Leonard K. Pennock
AD7AS
Those who walk bravely through life, unafraid of loss or failure,
find that they very rarely lose or fail.
toggle quoted message
Show quoted text
On 1/20/24 12:18 PM, Patricia KI7IEE wrote: [Edited Message Follows]
Hi folks. I have 6x 12v10Ah batteries that I rotate in my go-pack, and I have a dedicated LiFePo4 charger to top them off. I attach my radio's powerpoles directly to the batteries and can switch them out fast. That system works great on the road or in the shack... but I've been doing more work in the shack than on the go lately. So I've been considering getting an AC power supply. My dedicated shack space is small so I'd prefer something on the smaller/lighter side.?I assume anything that can power the 857 will also work for the 817.
The FP-1030A the official recommendation per the 857 manual, costs about $250-300 US. DX still sells them.
Pros: Bespoke specs, reliable performance, V / A meters. Cons: Price, bulk, weight.
For the 817 I've found used Yaesu FP12s and FP4s can be found for $50 or less.
Pros: compact, affordable, and reliable (if intact). Cons: Underpowered for the 857 past QRP.
Any recommendations for a compact / affordable / reliable alternative for both radios would be greatly appreciated...
PS: Of course I meant DC power supply... those fat fingers are hard at work today!
Patricia KI7IEE
|
Re: Compact AC Power Supply for 857D?
I have been using an Alinco DM-330MV power supply. It is a switching power supply, small and lightweight. The feature it has that I really like is that there is a knob to adjust the switching frequency slightly if you have a birdie on the signal you're trying to hear. So far, I have not had problems anyway on any of the ham bands 160 meters or above. I've used that feature receiving 2200m and 630m signals.
73, Zack W9SZ
On Sat, Jan 20, 2024 at 1:18?PM Patricia KI7IEE < cosmicfire@...> wrote: [Edited Message Follows]
Hi folks. I have 6x 12v10Ah batteries that I rotate in my go-pack, and I have a dedicated LiFePo4 charger to top them off. I attach my radio's powerpoles directly to the batteries and can switch them out fast. That system works great on the road or in the shack... but I've been doing more work in the shack than on the go lately. So I've been considering getting an AC power supply. My dedicated shack space is small so I'd prefer something on the smaller/lighter side.?I assume anything that can power the 857 will also work for the 817.?
The FP-1030A the official recommendation per the 857 manual, costs about $250-300 US. DX still sells them.?
Pros: Bespoke specs, reliable performance, V / A meters. Cons: Price, bulk, weight.?
For the 817 I've found used Yaesu FP12s and FP4s can be found for $50 or less. ?
Pros: compact, affordable, and reliable (if intact). Cons: Underpowered for the 857 past QRP.
Any recommendations for a compact / affordable / reliable alternative for both radios would be greatly appreciated...
PS: Of course I meant DC power supply... those fat fingers are hard at work today!?
Patricia KI7IEE
|
Compact AC Power Supply for 857D?
Hi folks. I have 6x 12v10Ah batteries that I rotate in my go-pack, and I have a dedicated LiFePo4 charger to top them off. I attach my radio's powerpoles directly to the batteries and can switch them out fast. That system works great on the road or in the shack... but I've been doing more work in the shack than on the go lately. So I've been considering getting an AC power supply. My dedicated shack space is small so I'd prefer something on the smaller/lighter side.?I assume anything that can power the 857 will also work for the 817.?
The FP-1030A the official recommendation per the 857 manual, costs about $250-300 US. DX still sells them.?
Pros: Bespoke specs, reliable performance, V / A meters. Cons: Price, bulk, weight.?
For the 817 I've found used Yaesu FP12s and FP4s can be found for $50 or less. ?
Pros: compact, affordable, and reliable (if intact). Cons: Underpowered for the 857 past QRP.
Any recommendations for a compact / affordable / reliable alternative for both radios would be greatly appreciated...
PS: Of course I meant DC power supply... those fat fingers are hard at work today!?
Patricia KI7IEE
|
Re: FT857D not pushing more then 40 watts on transmit
I think those tests suggested have confirmed that the test are the average and using FM confirms the radio is pushing 100 watts as it is supposed to do.? It was an educational moment and I appreciate the guidance.? Thanks again..?
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Re: FT857D not pushing more then 40 watts on transmit
Thank you..? .? I do run the 49:1 EFHW from Myantennas.com? I have had great luck with the antenna.? Great information.? Appreciate it? ?
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Re: FT857D not pushing more then 40 watts on transmit
In addition to what others have said. They can start fold back as low as 1.6:1 SWR.
Leonard K. Pennock
AD7AS
Those who walk bravely through life, unafraid of loss or failure,
find that they very rarely lose or fail.
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Show quoted text
On 1/15/24 9:36 AM, Barry Wells wrote: I have gone through the messages on this board and did not see this exact issue.? I have 2 FT-857D radios, each on their own Samlex Sec-1223 power supply.? It is showing a steady 13.85 Volts from source.? Also using? a LDG FT-Meter and a MFJ-818 to monitor forward and reflecting power to also monitor the power,? ? But? both radios do not transmit greater than 20-40 watts SSB.? Each radio is connected to a EFHW 130 ft antenna, SWR is showing 1.2 to 2.0
I have reviewed the settings and they all seem fine.? I brought these radios in 2018, I don't think they are the so-called 20 Watt Japanese model. I even clipped the brown wire as suggested..? Any suggestions?
Volts are showing 13.7 Transmit
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Re: FT857D not pushing more then 40 watts on transmit
Your meters are probably measuring average power and not reflected power. That output is pretty normal for SSB, but you can probably tweak some more.
To see full power use FM or digital, but be sure not to key down more than a few seconds. Using a 100% duty cycle mode at 100W you can cook your finals fairly quick. I believe the manual recommends about 30W max for 100% duty cycle modes on HF & 6m.
You can tweak you SSB mic gain and processor level (menu 74). Don't forget to turn menu c [proc] on.? You will probably find that lower than 50% on both will maximize power out and clarity.
I tend to hold my mic to touching the corner of my mouth and speak across the mic, not into it, with a loud conversational voice. The mic is basically facing away from my face.? Maybe >75dB-spl. The processor ended up at 20 and SSB mic gain of 36. You may end up a bit higher, but probably less than 30 on the processor and below 50 on SSB mic gain.
If you get average power up to 25W-30W range you are doing very good.
You might find more power by going deep into the service menu, but beware you don't cook your radio trying to get the last Watt. If you are already getting >85W using a 100% duty cycle mode, I suggest leaving it. The FT-XXX radios vary with band from the factory usually in >=90W range.
The condensor mic with buttons and a 2.3kHz collins filter will give you a bit tighter audio for clarity to punch through stronger signals and noise.
You best investment is a good antenna. It is a passive amplifier for both transmit and receive and it works on all radios. A resonant single band dipole is hard to beat in a wire antenna, but a quality EFHW 49:1 not 9:1 random wire performs nearly as well as a dipole and you get excellent band agility. You do want to optimize installation.
Steve did a lot more testing using a field strength meter and RF ammeter. Myantennas makes a great 49:1 EFHW transformer that is spec'd. Otherwise do a mono band dipole if you want an excellent cheap wire antenna.
On Mon, Jan 15, 2024 at 23:44, Kent Trimble, K9ZTV <k9ztv@...> wrote: What is the output on CW key down?
Kent K9ZTV On Jan 15, 2024, at 10:28?PM, Barry Wells <bwells98629@...> wrote:
?I have gone through the messages on this board and did not see this exact issue.? I have 2 FT-857D radios, each on their own Samlex Sec-1223 power supply.? It is showing a steady 13.85 Volts from source.? Also using? a LDG FT-Meter and a MFJ-818 to monitor forward and reflecting power to also monitor the power,? ? But? both radios do not transmit greater than 20-40 watts SSB.? Each radio is connected to a EFHW 130 ft antenna, SWR is showing 1.2 to 2.0
I have reviewed the settings and they all seem fine.? I brought these radios in 2018, I don't think they are the so-called 20 Watt Japanese model. I even clipped the brown wire as suggested..? Any suggestions?
Volts are showing 13.7 Transmit
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Re: FT857D not pushing more then 40 watts on transmit
What is the output on CW key down?
Kent K9ZTV
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On Jan 15, 2024, at 10:28?PM, Barry Wells <bwells98629@...> wrote:
?I have gone through the messages on this board and did not see this exact issue.? I have 2 FT-857D radios, each on their own Samlex Sec-1223 power supply.? It is showing a steady 13.85 Volts from source.? Also using? a LDG FT-Meter and a MFJ-818 to monitor forward and reflecting power to also monitor the power,? ? But? both radios do not transmit greater than 20-40 watts SSB.? Each radio is connected to a EFHW 130 ft antenna, SWR is showing 1.2 to 2.0
I have reviewed the settings and they all seem fine.? I brought these radios in 2018, I don't think they are the so-called 20 Watt Japanese model. I even clipped the brown wire as suggested..? Any suggestions?
Volts are showing 13.7 Transmit
|
FT857D not pushing more then 40 watts on transmit
I have gone through the messages on this board and did not see this exact issue.? I have 2 FT-857D radios, each on their own Samlex Sec-1223 power supply.? It is showing a steady 13.85 Volts from source.? Also using? a LDG FT-Meter and a MFJ-818 to monitor forward and reflecting power to also monitor the power,? ? But? both radios do not transmit greater than 20-40 watts SSB.? Each radio is connected to a EFHW 130 ft antenna, SWR is showing 1.2 to 2.0
I have reviewed the settings and they all seem fine.? I brought these radios in 2018, I don't think they are the so-called 20 Watt Japanese model. I even clipped the brown wire as suggested..? Any suggestions?
Volts are showing 13.7 Transmit
|
Dan, I suspect this message could be to do with last night's spam revalidation email, your only recourse is to reply to that or log in to the groups.io website.
Failure to do either will close your group account
Hopefully this helps.
Martyn
M0TEB
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I do want to continue my membership in the FT 857 io group. I am a ham, KD8QBF, and I own an FT 857d...the discussion s are helpful. Thank you Dan
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Re: 857 radio does a reset when transmitting on 80m, works fine on all other freq 40-10
Thank-you ALL for your responses. I built the current choke or what ever you like to call it, and I am on the air with winlink, ssb, and FT8.? I appreciate all the mentoring as I have been a ham for a long while ( 27 yrs) but never had 80 meter antenna until now.
Basically a 4" pvc pipe with 21 feet of coax tightly wrapped around it, tied in below my 49:1 balun.
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FT857D DOES NOT TRANSMIT on 6m,10m,20m.!
R.E. no TX on 6M,10m,20m BUT IS DRAWING CURRENT?
Hi group can anyone help me out? here !
Fault : Will not Transmit on 3 bands which are 6,10,20 metre, but its clearly drawing 20-30 amps when you attempt to transmit on any of these band Ive also removed the HF finals mosfets and tested ok and they transmit on other bands, and? VHF and? UHF transmit no problem?
Okay, so Ive executed the relay clean mode several times,Ive also? done a software reset , Ive opened up the engineer mode as well to check those setting but they appear to be okay !.
Ive readonline that it could bepossible relay faults in band pass filter circuit or ceramic filter may be at fault?
So anymore suggestions will be very welcome?
73 Mike, G3PWP, Stoke on Trent.
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Re: 857 radio does a reset when transmitting on 80m, works fine on all other freq 40-10
I have had similar situations on the lowest band of my portable EFHW setup from time to time depending on coax length and the particular setup. The "cure" has been to install a counterpoise. By experimenting I found a 10-12ft length of wire attached at the coax shield at either the antenna or the rig end would solve the problem. I attached the wire to a battery clamp salvaged from a car battery charger and just clamp it to the PL259 body.
=Vic=
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Re: 857 radio does a reset when transmitting on 80m, works fine on all other freq 40-10
Have you tried it into a dummy load?
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Re: 857 radio does a reset when transmitting on 80m, works fine on all other freq 40-10
Thank-you, I will try a choke.
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Re: 857 radio does a reset when transmitting on 80m, works fine on all other freq 40-10
You are getting your transmitted RF back into your radio that travels down the coax. It is a common problem with EFHW antennas. A common mode choke will help, but knowing where to put it can be complicated. The best place would probably be where the coax enters your shack (unless you have a ground radial wire at the antenna, in which case you can put the choke close to where you feed your EFHW. I like my EFHW, but it has been a bit of a battle, especially when using an amp.
Brett - K7TX
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Re: 857 radio does a reset when transmitting on 80m, works fine on all other freq 40-10
100 feet RG213, just a 49:1 balun.pushing about 60 watts during my testing; No chokes.
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Jim
Patricia KI7IEE
Martyn Bell
Dan Cameron
Mic
Vic WA4THR