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Re: Power bank questions
Sorry, the configuration is one 3-long string of 2 cells in parallel (not 2 parallel strings).
I dug deeper into the reviews. People say there is indeed a built-in charge balancing in the Aili powerbank.
The pairs of cells still must be closely matched, but this is true for all other powerbanks where cells are connected in parallel. I am using cells from old 3S2P laptop batteries, where cell pairs are already welded together.
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73, Mike AF7KR |
Re: Iambic mode - A or B?
I use a palm radio pico paddle attached to the underside of the FT817 when doing on the air cw. But i go on VBAND website to practice a lot, and for that i detach the key from the radio connect it to the phone with a circuit and just hold it with the left hand while sending with the right hand. Bottom line being i think anything is possible as long as you get used to it. The paddle in hand thing works for me with the pico paddle because its small and light. with a regular sized paddle other will probably not be practical.
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I like paddles for the practicality and because you can’t send badly spaced/timed characters, that helps to build good “mental timing”. And i got used to “squeezing” sending some letters using both sides of the paddle simultaneously.?
But I haven't been doing CW for as long as you. ?
73 Bruno
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Re: Windcamp Battery
开云体育Thanks every one. Think Ebay will do the job. Appreciate it. Dave
On 3/27/2025 3:42 PM, K6AEF via
groups.io wrote:
-- 73's de NU4N -- Thanks Dave NU4N
dwtucker19@... |
Re: Windcamp Battery
开云体育Just looked on Ebay. Mostly the battery-plate-charger kits. Or same kit with the plastic stand. I've had good luck with the Windcamps (have 2 FT-817ND's) 73, Rich W1GBB Sent from my Verizon, Samsung Galaxy smartphone -------- Original message -------- From: "David Tucker via groups.io" <nu4ndave@...> Date: 3/27/25 16:14 (GMT-05:00) Subject: Re: [ft817] Windcamp Battery Thanks Kevin for the reply. I am trying to find someone that just sells the battery alone. Not the charger or battery plate. I already have that. Just need a smaller battery than the 8 cell one I have. Dave On 3/27/2025 3:03 PM, Kevin - K5KTM via
groups.io wrote:
If you have not done so yet I would highly recommend just going with the windcamp battery. I’m not sure what you are running but the windcamp has been excellent for me. Works great for my POTA stuff. Rarely have I had to go to my backup 5ah battery.? -- 73's de NU4N -- Thanks Dave NU4N
dwtucker19@...
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Re: Windcamp Battery
开云体育Thanks Kevin for the reply. I am trying to find someone that just sells the battery alone. Not the charger or battery plate. I already have that. Just need a smaller battery than the 8 cell one I have. Dave On 3/27/2025 3:03 PM, Kevin - K5KTM via
groups.io wrote:
If you have not done so yet I would highly recommend just going with the windcamp battery. I’m not sure what you are running but the windcamp has been excellent for me. Works great for my POTA stuff. Rarely have I had to go to my backup 5ah battery.? -- 73's de NU4N -- Thanks Dave NU4N
dwtucker19@... |
Re: Windcamp Battery
开云体育If you have not done so yet I would highly recommend just going with the windcamp battery. I’m not sure what you are running but the windcamp has been excellent for me. Works great for my POTA stuff. Rarely have I had to go to my backup 5ah battery.?I’m sure there are differing opinions on this but my experience with it has been very positive.? Kevin Mullens On Mar 27, 2025, at 14:47, David Tucker via groups.io <nu4ndave@...> wrote:
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Re: Windcamp Battery
开云体育Ok Martin the battery is a 8 cell 2000mAH. Size is 4 inches x 2 1/2 inches. Takes up the entire compartment. No way will the Wind camp panel I ordered will fit. Dave On 3/27/2025 2:34 PM, David Tucker
wrote:
-- 73's de NU4N -- Thanks Dave NU4N
dwtucker19@... |
Re: Windcamp Battery
开云体育Thanks for the reply Martin. I will open the rig up and get back to you. Dave On 3/27/2025 12:32 PM, Martin HB3YDM
via groups.io wrote:
-- 73's de NU4N -- Thanks Dave NU4N
dwtucker19@... |
Re: Iambic mode - A or B?
Thank you for the quick reply, Bruno. I've used a Vibroplex semi-automatic key and a Lionel (I still have that) so I'm used to dits with the thumb and dahs with the index finger. In this case, though, I'm using the left hand and still have dits?with the thumb, dahs with the finger but of course they are on the opposite sides. I was told by my mentor (50+ years ago) that using a fully automatic key would ruin my fist, so I'm using the other hand.? Rightly or wrongly, I've mounted my tiny stainless twin-paddle key on a box with knee straps. The box contains a PIC, a lithium cell and a 2.4GHz transmitter to make it cordless. I wonder whether this makes iambic keying more difficult because the key can twist slightly on the straps. I've tried turning the box around so the paddles are pointing away from me and my hand rests on the box to steady it, but the box has a sharp edge which needs to be padded.? I might try a single paddle and forgo the iambic mode, or make? a sideswiper. I've never used one of those. Thanks again and 73, John G4EDX On Thu, 27 Mar 2025 at 15:45, Bruno R. via <ct7axa=[email protected]> wrote:
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John Fletcher |
Re: Iambic mode - A or B?
Hi John
It’s a matter of preference, i would risk saying that Iambic B is the only mode on the FT817 and also risk saying that it is the most common mode to be using a paddle. The main difference is how it handles “squeeze” that is maintaining the dash paddle held down and insert a dit on the right timing.? ?
Also if you are new to paddle use, i would also recommend dash on the right dit on the left. You can learn either way and there is no right way but it’s what most people use.
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hope that helped.
?73 de CT7AXA/PA7AXA |
Iambic mode - A or B?
As a long-term straight key operator trying to get to grips with iambic keying I would like to know whether the 817's internal keyer is mode A or mode B. Whichever it is, there isn't a choice, and I'm convinced that I would find the other mode easier!? Any advice, please? 73, John G4EDX -- John Fletcher |
Re: Digirig APRS
Good morning to the group, take a look at the following site ,? has an excellent tutorial on aprs using direwolf on raspberry Pi using the digirig. Vy73, Rick VE1RNM On Thu, Mar 27, 2025, 10:45 a.m. Jeff Hanscom via <j.hanscom=[email protected]> wrote:
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Re: Power bank questions
On Wed, Mar 26, 2025 at 09:44 PM, vbifyz wrote:
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Re: Power bank questions
Or search for "aili 18650 powerbank".
This is the kind that satisfies the requirements. I haven't tested it for EMI with my FT-817 yet. Using it as an extra power for laptops.
It can charge from a 19V laptop power adapter with 5.5x2.1mm barrel tip and can output 5/6/9/12/15/19V selectable by mechanical switches on its 5.5x2.1mm socket. Has a USB-A output for the phone as well.
The best part for field operation is that you can replace 18650 cells with ones pre-charged at home, so essentially "unlimited" capacity.
You need to understand what you are doing, like closely matching the 2 strings of 3 cells each when installing. Instruction manual is not included, but can be found online.
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73, Mike AF7KR |