There is USB-C, the connector standard, and USB-C PD which supports higher voltages and current ratings (like charging laptop batteries).
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If I understand the OP's desire, he wants a power bank that outputs proper voltages for both their cellphone and their FT-817.
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TalentCell has some interesting power banks, like this:
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But this particular model lacks a high-current/high-voltage USB-C PD port...
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Personally I'd prefer something like this:
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- A Bioenno 9 Amp LiFePO4 battery & charger (still on BOGO at $115 plus shipping for TWO batteries and TWO chargers)
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- This PowerWerx USB-C QC adapter: $30
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- A powerpole panel mount to power the FT-817
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- A small Harbor Freight case, like this:
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Yes, that takes you to $200, but if you can find a friend to split the BOGO deal on the battery, you're now under $150 for a great, robust power solution.
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Hope this helps,
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Ken, N2VIP
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Ken
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Daniel.
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The answer to your question is? yes,, both the setups you sho
will essentially work the same.
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73, Bob GM4CID
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What modes you use? Does the power bank or the cable heat up?
Em ter., 11 de mar. de 2025, 11:03, sharudin senapi via <aidiesha= [email protected]> escreveu:
Hi I am using Power Delivered USB C that can produce 12v to my 817
73 9w2d
On Tuesday, March 11, 2025, 9:59 PM, NE1AM - Ryan via <ryan.ruby=[email protected]> wrote: USB-C can natively handle up to 5 amps.? Your phone has the circuitry built-in to use up to that amount.? As long as its 12V and <= 5A then you are good to go!
Ryan
NE1AM
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Hi I am using Power Delivered USB C that can produce 12v to my 817
On Tuesday, March 11, 2025, 9:59 PM, NE1AM - Ryan via groups.io <ryan.ruby@...> wrote: USB-C can natively handle up to 5 amps.? Your phone has the circuitry built-in to use up to that amount.? As long as its 12V and <= 5A then you are good to go!
Ryan
NE1AM
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USB-C can natively handle up to 5 amps.? Your phone has the circuitry built-in to use up to that amount.? As long as its 12V and <= 5A then you are good to go!
Ryan
NE1AM
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I was wondering if it is possible to have a power bank?to charge my phone (while hiking) and also to have it as a backup power source for the?Yaesu.
Not only voltage and current ratings on websites like Amazon are confusing (and probably wrong),?but I'm also insecure if a USB-C to DC cable would?handle the?~2.6 A current the?Yaesu uses to TX?(I use a lot of FT8).?
Is it possible to have a power bank to meet my needs? What kind of criteria should I look for?
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Mostly heat in the transmission line and finals. If it's an antenna with radials on the ground, resistive ground losses. ?
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Wow..I didn't know it was so lossy! Out of curiosity: the case of one radiator, where does the 2/3 of the power go?
Daniel PY2TDB.
Em dom., 9 de mar. de 2025, 17:06, James Todd via <toddjam= [email protected]> escreveu:
Daniel:
If black is the radio, which is about 20 cm, they are functionally equivalent.? Neither is optimal, however due to the radiator of the antenna you described being shortened by about 1/3 relative to a 1/4-wave radiator and there being only one radial. A few more radials in this configuration could add a few more dB to your signal. Basically, with one radial, you're cutting effective power to less than a third. I'm assuming a vertical radiator and 1/4 wave radial at 90 degrees.?
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Number of 1/4¦Ë Radials and approximate?ERP?
- 1 radial: ?? x ~0.35 power (puts out about 1/3 of what goes in assuming a 1/4 wave radiator and other optimum conditions)
- 2 radials: ?x ~0.45?
- 4 radials: ?x ~0.65
- 8 radials: ? x ~0.85
Jim
WB0KWJ
?
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Daniel:
If black is the radio, which is about 20 cm, they are functionally equivalent. ?Neither is optimal, however due to the radiator of the antenna you described being shortened by about 1/3 relative to a 1/4-wave radiator and there being only one radial. A few more radials in this configuration could add a few more dB to your signal. Basically, with one radial, you're cutting effective power to less than a third. I'm assuming a vertical radiator and 1/4 wave radial at 90 degrees.?
?
Number of 1/4¦Ë Radials and approximate?ERP?
- 1 radial: ?? x ~0.35 power (puts out about 1/3 of what goes in assuming a 1/4 wave radiator and other optimum conditions)
- 2 radials: ?x ~0.45?
- 4 radials: ?x ~0.65
- 8 radials: ? x ~0.85
Jim
WB0KWJ
?
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Hello,
I have a question: Are these setups equivalent (radiation-wise)?
Purple: Portable antenna for, say, 10 m (think of a GRA-1899T) Blue: Ground/radial of 2.5 m Black: Yaesu
 Daniel PY2TDB.
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Re: Sotabeams speech compressor
OK so, my ssb mic gain is now 50, without compressor my ALC shows no bars, with compressor it shows 3 bars. Power meter, set to PEP not AVG no compressor shows 1.5w with 5w on a whistle but with compressor shows 4w with 5w on a whistle.
Say @ 4dB extra.?
Using a kiwisdr in Germany without compressor showed no signal on waterfall but very very faint audio, not enough to copy. With compressor there was a trace on the waterfall and audio was stronger, clear and copyable. This was from an efrw in gloucestershire back garden in inverted L highest point 6m. Next doors house is currently encased in scaffolding and tin sheets so my signal was probably not very good.
Looks promising, next time I'll be on top of gloucestershires highest point with a full sized dipole.
Pot settings inside compressor are as set from factory, halfway through adjustment.?
Andy
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Re: Sotabeams speech compressor
A compressor will increase average loudness and thus power, but readability is reduced as it is increased and beyond a point very much. Those with hearing impairments may find readability reduced more. In practice 3W to 4.5W isn't much increase in range, so compressor may not help much compared to so simply adding a 20W PA, which on average with uncompressed SSB might look like 10W.
A peak reading power meter gives a better idea of power and a DX signal report of readability. Almost all power meters will give an average, not even RMS, with speech.
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Re: Witch DSP Filter is Better? BHI or Sotabeams?
I had the laserbeam filter unit installed in my 817nd for a while. It does work but has a couple of annoying side effects. Well, at least mine did.
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First, the metering for signal strength is thrown way off. Not the end of the world, but a bit nippy.
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Second, and most annoyingly, the filter creates ghost images of strong signals. These were a couple of kHz away from the actual signal. I can't remember the exact offset but it was a pain in the hoop to constantly flip the filter in and out of line to see if I was listening to a real signal or an image. This could partially be worked around by using the IF Shift on the radio.? The filter was installed exactly as per the instructions. I am very comfortable working with surface mount components and have confidence in my work. I even removed and re-installed it in case there was some hidden issue with my work but that made zero difference.?
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The second issue was annoying enough for me to eventually remove the filter and throw it in the bin. I approached sotabeams about the issue at the time but they were less than energetic in their response.
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I eventually managed to source a 500Hz Collins mechanical filter for a VERY reasonable price and use that in the radio. The difference is night and day!
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Given the current cost of mechanical filters, I'd go for the BHI option.?
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This is just my experience and I'm sure others are happy with the laserbeam. It is cheap after all.?
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Cheers,?
Ronan
MM0IVR?
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Re: Witch DSP Filter is Better? BHI or Sotabeams?
Another option is the external 4StatesQRP HI-PER-MITE audio CW filter kit . ?This filter ?is 200 Hz wide and has no ringing - a truly ?amazing 4 pole filter with 3 low pass filters and 1 high pass filter cascaded together. ??
All background hiss is essentially eliminated when the filter is engaged. ?
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Google ¡®HI-PER-MITE¡¯ for more info including an audio demo of this CW audio filter in action.
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Re: Witch DSP Filter is Better? BHI or Sotabeams?
Hi Mike, check YouTube, I think he has an or mor Videos See under ?Sotabeams FT-817¡° I hope this helps for your search on YouTube.
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73 de Martin, HB3YDM
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Re: Witch DSP Filter is Better? BHI or Sotabeams?
How difficult to install the Sotabeam unit? Mike Davis WA1MAD
toggle quoted message
Show quoted text
On Mar 8, 2025, at 3:26?AM, K6AEF via groups.io <contactfire425@...> wrote:
? I have no experience with the BHI filter, however I installed the sotabeams filter in my 817 and it's great.
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All filter switching is controlled from the buttons on the radio. You do have to move the speaker over slightly inside the housing to make space for the module though.
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Re: Sotabeams speech compressor
Hi all,
My mic gain is 50 ssb mic.
With the compressor switched off and radio set to 5w and a 12v car battery operating into a dummy load an external power meter shows peaks of 2.5 to 3.5w. With compressor switched on peaks are 4 to 5w.
Tried listening to my audio on my ft450d with a piece of wire stuck into the antenna socket but too much distortion and feedback. So I will be using an online websdr to listen to the audio.
P1 and P2, I tried adjusting them but due to not being able to hear clearly I reset them as delivered, the top just pops off the case to access them.
I did notice that the ALC on the 817 increase a lot when compressor switched on.
Will report back after further testing.?
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Re: Sotabeams speech compressor
Hi Andy,
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I have the same speech compressor from Sotabeams, just out of interest what mic gain setting do you have the FT 817 at with the speech compressor switched on?
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Thanks
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Phil 2E0GUK
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Re: Witch DSP Filter is Better? BHI or Sotabeams?
I have no experience with the BHI filter, however I installed the sotabeams filter in my 817 and it's great.
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All filter switching is controlled from the buttons on the radio. You do have to move the speaker over slightly inside the housing to make space for the module though.
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Re: Sotabeams speech compressor
Hi Andi, I don't quite understand how to adjust P2? I haven't read the manual yet, because I thought it was a plug and play product, so you have to adjust the voice a bit as I understood you? I wonder how long it will take until I have everything I need to go up the mountain.?
?I have an Ft817ND with Z-817 tuner and then the sorabeams filter and the sprach amplifier and I'm still thinking about whether I'll also install the parrot microphone. Let's see. Thanks to all of you for your help and tips. Now I just need a good antenna solution, I have long wires with splitters, I just need to mark the length and then I only need a single wire, what do you think? At the moment I still have the beginner's license as HB3 (i.e. DO for Germany) I am not yet allowed to use any bands.
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73 Martin?
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M0RON
Mike EI9FEB
Ham Radio
Martin HB3YDM
K6AEF