Re: Loosening tight screws
Hi Neil and the group,
Thanks for your post, I never knew JIS existed, I have never had a problem removing? the screws from yaesu products but have a lot of screw drivers also! I wonder if there is a US distributor for this Japanese manufacturer...
Thanks again for the Post and link
Vy 73,
Rick VE1RNM?
Hi
It will help if you get a JIS driver.
Yeasu radios don't use Philips, they use JIS screws, you can use a Philips driver but it isn't the best fit.
this website explains it better than I can.
Good luck.
?Neil
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Re: Loosening tight screws
Hi
It will help if you get a JIS driver.
Yeasu radios don't use Philips, they use JIS screws, you can use a Philips driver but it isn't the best fit.
this website explains it better than I can.
https://rtstools.com/jis-vs-phillips-screwdrivers-and-where-to-buy-a-jis-screwdriver/
Good luck.
?Neil
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Re: Loosening tight screws
A small amount of heat. A heat gun or hairdryer will work. Assuming they have blue locktite on them, heat will soften the bond.?
I finally decided to attach the side rails that came with my Portable Zero Pack to my 817nd.? The two screws on either side are so tight I can only barely loosen one of them.? The other three are way to tight and I don't want to damage the Phillips head screw.? Does anyone know of a method of loosening screws that are so tight?? Appreciate any and all advice.
73
Rich KB3OMJ
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I finally decided to attach the side rails that came with my Portable Zero Pack to my 817nd.? The two screws on either side are so tight I can only barely loosen one of them.? The other three are way to tight and I don't want to damage the Phillips head screw.? Does anyone know of a method of loosening screws that are so tight?? Appreciate any and all advice.
73
Rich KB3OMJ
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The OP is asking about portable QRP usage, so car batteries are right out, SLA are an option but heavy, LiFePO4 batteries are likely a better choice.
As for a solar panel, a three-panel array is not practical, there are quality brands out there, Bioenno seems well-regarded here, but I think there's no way to provide specifications for solar panels given the number of variables involved. I would suggest going with a well-regarded brand, over-provisioning the solar panel to the extent its practical to deploy easily in portable use, and realize that you can't run just off the solar panel - you'll need a battery and the solar panel/array you deploy is just to hopefully maintain the charge on the batteries.
Good luck, please share your decision with us when you decide,
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On Apr 27, 2024, at 07:43, Joseph Wonoski via groups.io <N1khb@...> wrote:
?SLAs are actually made for deep cycle use. Depth of discharge affects lifespan to a degree however.? ? ?Car batteries are a different animal designed for short duration starting only.
Joe N1KHB? On Sat, Apr 27, 2024 at 5:30 AM, Mike EI9FEB <ei9feb@...> wrote: Many quote the maximum output at solar noon, midsummer, clear sky and the panel angled at the sun.
Obviously this can be even x10 the actual output even on a good day in the other half of the year unless you live closer to or in the tropics.
Three 100W panels, special charging electronics and a suitable battery system. Car batteries are best value but heavy. Li batteries may take deep cycles well. NiMH less tricky, can be similar volume capacity to Li, but much heavier and expensive other than AA size. Lead Acid gel don't like repeated deep discharge.
Likely for a rig the duty cycle is 1:5 unless in a pile-up/contest.·
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SLAs are actually made for deep cycle use. Depth of discharge affects lifespan to a degree however.? ? ?Car batteries are a different animal designed for short duration starting only.
On Sat, Apr 27, 2024 at 5:30 AM, Mike EI9FEB <ei9feb@...> wrote: Many quote the maximum output at solar noon, midsummer, clear sky and the panel angled at the sun.
Obviously this can be even x10 the actual output even on a good day in the other half of the year unless you live closer to or in the tropics.
Three 100W panels, special charging electronics and a suitable battery system. Car batteries are best value but heavy. Li batteries may take deep cycles well. NiMH less tricky, can be similar volume capacity to Li, but much heavier and expensive other than AA size. Lead Acid gel don't like repeated deep discharge.
Likely for a rig the duty cycle is 1:5 unless in a pile-up/contest.·
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Hi All New firmware version V1.3 is already working in Maxicom CAT display for FT8xx transceivers A new IF for 28MHz transverter was added. This video shows Maxicom used in FT8 with FT857 and MET-4 4m transverter Of course you can also use it for digital modes in other bands not needing transverters like 432, 144, 50, 28, etc Kit price is EU200 plus shipment. ??m sending the main pcb already assembled and tested Anyone interested please contact directly luis (at) vigilant.es
73 de Luis EA5DOM
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Many quote the maximum output at solar noon, midsummer, clear sky and the panel angled at the sun.
Obviously this can be even x10 the actual output even on a good day in the other half of the year unless you live closer to or in the tropics.
Three 100W panels, special charging electronics and a suitable battery system. Car batteries are best value but heavy. Li batteries may take deep cycles well. NiMH less tricky, can be similar volume capacity to Li, but much heavier and expensive other than AA size. Lead Acid gel don't like repeated deep discharge.
Likely for a rig the duty cycle is 1:5 unless in a pile-up/contest.·
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I saw the same thing. Various manufacturers with dubious claims. I think it probably cost more, but I bought a small folding bioenno panel and haven’t regretted it.?
Dan --. Please pardon any mispelings or errors.
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On Apr 26, 2024, at 9:47?PM, Joseph Wonoski via groups.io <N1khb@...> wrote:
? [Edited Message Follows]
Hi all, ? ?I'm considering a solar panel purchase for portable qrp. Something in the neighborhood of 20-30 watts. ? ?Many on the web have sketchy, ambiguous, or contradictory specs. Any guidance would be appreciated. Tnx.? Joe N1KHB
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Bioenno has been solid with their support for batteries and panels. I have 5-6 batteries and 3 panels 28W-180W.?
Buy quality.?
Doug
W4DBL?
Doug Lynch
President?
Aries International, LLC
?
D: +1-321-415-2191
M:?+1-478-318-2655
?
E: Doug@...?
Port Orange, FL
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On Apr 26, 2024, at 23:30, Joseph Wonoski via groups.io <N1KHB@...> wrote:
?Hi all,
? ?I'm considering a solar panel purchase for portable qrp. Many on the web have sketchy, ambiguous, or contradictory specs. Any guidance would be appreciated. Tnx.?
Joe N1KHB?
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Hi all,
? ?I'm considering a solar panel purchase for portable qrp. Something in the neighborhood of 20-30 watts.
? ?Many on the web have sketchy, ambiguous, or contradictory specs. Any guidance would be appreciated. Tnx.?
Joe N1KHB
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DigiPi WSJT-X CAT PTT error
I'm using a DigiPi with a digirig going to the 817. Running WSJT-X. I have checked "CAT" for PTT Method. "Test CAT" works and comes back green, but then "Test PTT" produces an error (see attached screenshot). CAT control does generally appear to be otherwise working, as I can get it to change bands successfully, for example.
Any ideas or suggestions?
73,
Jim KX0U
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Re: H-250 Handset with FT-817 ??
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H-250 Handset with FT-817 ??
All,
? ? Is anyone using an H-250 military handset with their FT-817 ? Perhaps in a field pack configuration ?? ?If so, I have a bunch of questions;?
? ?How did you interconnect? the handset to the radio?? ?In other words, did you buy a special cable, build or buy an adapter, or lob the U-229 connector off the end of the H-250 cable and add the '817 mic connector??
? ? Is the output level from the handset mic high enough to drive the radio ?? ? Is there enough drive from the radio to drive the earpiece ??
? ? ?Thanks es 72,
? ? ?Gene K1NR??
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Re: Add command to Direwolf.conf to force FT-817 into FM mode?
On 2024.03.17 18:02, Dennis Blanchard via groups.io wrote: I wonder if anyone has ever come up with a command string for the
Direwolf startup config file (direwolf.conf) that would put the FT-817
into FM mode for APRS?
I recently beat my brains out trying to get the radio to work properly
with APRS, not realizing I hadn't switched the radio to FM from DIG
mode. It wasn't too obvious because I spent most of my time
controlling a Raspberry Pi remotely with VNC. It was actually
working, but not well. Dummy?
Since I have Hamlib running and a CAT-62 cable it wouldn't seem
impossible to send some sort of command (the "08" command string in
the radio parlance). I know nothing about Python, but would be willing
to learn. I suppose I could start FLrig first and somehow send a
command to it as well, I haven't really thought this out yet, but I'll
bet someone has.
Any ideas?
Dennis, K1YPP I was about to suggest flrig and on a re-read noticed you were considering it. May find some info here: and the flrig download for others: Cheers, John -- John D Erskine VE7MHI VA7OTC CN88
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Thanks All,
i will add two more cells to the pack and look into the LDDA batteries. I have 10 eneloops so good for the moment
All advice much appreciated
cheers
Tony
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I use LADDA cells too. They work well.
--
Mike G8GYW
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Hi guys , I already talked (a few years ago)? about the LADDA 2450 mA from IKEA are also a good choice and cheaper than the? eneloop.?? Still ok? after 4 years of? use.? just took care about the sleep-stock charging level when not used.? 73. Patrice.
Your NiMh pack will work well. It's obviously limited by the capacity and quality of the cells but, for the length of time you're intending to operate, they'll be absolutely fine. The radio will default to a maximum of 2.5 Watts when the battery voltage drops but you can force it back to 5 Watts by cycling by through the power settings until the power output icon blinks.?
I have used the "LADDA" branded NiMh cells from IKEA. They're identical in performance to Eneloop Pro cells but cost considerably less. They're made in the same factory in Japan as the Eneloops.
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Your NiMh pack will work well. It's obviously limited by the capacity and quality of the cells but, for the length of time you're intending to operate, they'll be absolutely fine. The radio will default to a maximum of 2.5 Watts when the battery voltage drops but you can force it back to 5 Watts by cycling by through the power settings until the power output icon blinks.?
I have used the "LADDA" branded NiMh cells from IKEA. They're identical in performance to Eneloop Pro cells but cost considerably less. They're made in the same factory in Japan as the Eneloops.
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There should be no real difference between the NiMh Enloops and the 817 battery pack other than voltage.? The NiMh batteries have a very low internal resistance and thereby can have a very high discharge rate.? The Enloops I believe are about 2700mAh so other than the voltage of you pack being lower, it should work well.
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On Thu, Apr 11, 2024 at 10:23 AM, Tobias KK7BCO/2M0TFF <feltusfecit1@...> wrote: Tony,
I think the shortcoming of this solution may be the voltage and discharge current rate. Your battery pack will probably provide similar power to the original NiMh pack, which means you will be limited to the middle power setting (i.e. not 5w).?
I have a Windcamp battery in mine, which stays just above 11v for multiple 1h activations, and it permits full power output. It is worth noting that when you are below 12v the power icon will blink at 5w: this is normal. I read somewhere that 11.4v is what the ft-817 likes to run most efficiently, which is why the Windcamp pack is set for that voltage area. I have no idea if there is any truth in this.
So, if you were to add two more cells to your pack, you would get better performance. But you will still be limited by the current draw rate of those cells which are probably not designed to output much current. I have seen a lot of people use 3x 18650 cells, which kind of fit in the battery bay. Or the Windcamp setup is very tidy and works well. With 18650s you can buy a regulator from ebay or amazon for a 3 cell setup, which allows you to charge them from any 12v source... And the batteries can be bought new or taken from old tools or laptops. Usually a battery pack fails because one cell falls out of line, leaving the others in good shape.
73.
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Tobias KK7BCO/2M0TFF
Luis Fernandez
Mike EI9FEB
Doug Lynch NNJ4EM
John D Erskine VE7MHI VA7OTC
Tony Murphy