Re: FT-818 Odd SWR Readings on 70 cm
Re: SWR.
My FT817ND was purchased new in early 2006. The SWR readings don't match this table:
On mine there are no SWR bars on 145 MHz, but 2 to 3 bars on 435 MHz with a dummy load good to over 1GHz. The rear and front connectors don't make much difference.
Note SWR due to higher apparent resistance rather than lower is less of a risk, the 2:1 could be 100 Ohms or 25 Ohms, but 25 Ohms is higher current. Most SWR meters don't tell you which it is. Also an open circuit on the end of a transmission line will look like a short circuit at specific lengths and frequencies. I have a 50 Ohm load that can be connected as "through load" and with a 50 Ohm on that and an electrically short cable you then have 100 Ohms = 2:1 (which is safe) to check your SWR meter(s).
The service menu settings don't calibrate the SWR metering.
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Rick,
I was thinking something more simple (my electronics habilities goes as far as pressing the power button). I was wondering if a Digirig and the APRSDroid would work. Daniel PY2TDB. Em qui., 27 de mar. de 2025, 10:53, VE1RNM via <rickmoskovits= [email protected]> escreveu:
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: Not specifically with APRS but with packet.? It was overdriving the input to the radio.? Need to cut the trace inside to reduce the audio.
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73,
Jeff, KA1DBE
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Re: Iambic mode - A or B?
Why not use the keyer as a full keyer. ?Let it control the timing. I often hear users I can tell using a bug bad dah timing is sloppy sending. The why we are called hams poor cw ops from early days of radio?
On Friday, March 28, 2025, 10:41 AM, Mike, KL7MJ via groups.io <alaskamike@...> wrote: John,
I'd second the recommendation for a single lever paddle.? A single lever is pretty much the same as using a bug.? If you accidentally manually key you dashes, the keyer will still accept the input (unless you like to send really long dashes with your bug!).? I use a 3D printed single lever paddle that was designed by Adam, K6ARK - actually, I printed a bunch of them and have one for each radio.
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73,
Mike, KL7MJ
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Re: need help with my old yeasu ft-817
How many hours did you spend resolving that issue?
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Yaesu charges $90/hr to repair Amateur Radios, and component-level repairs for a radio may not be cost-effective. They have to balance effort, cost, and time - with limited repair techs (they have been hiring techs for a while now), they may not be inclined to invest a few hours to identify a failed transistor when they could possibly repair a couple radios for other customers in the same time period.
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If I remember correctly, Yaesu diagnoses the problem for free, providing the owner with an estimate of cost. Short of investing an hour or two to diagnosing the issue, then putting it aside awaiting your approval doesn't make sense (for Yaesu). If you refuse the repair, they have to eat the time invested in diagnosing the problem.
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I sent Yaesu an FT-8800 that was given to me in a state that wouldn't power-up. They quoted me $395 for new main board, and when I declined, they returned the radio for free. An EE friend took the radio on as a project, he invested a couple hours before declaring it dead.
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Ken, N2VIP
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Re: need help with my old yeasu ft-817
Didn't Yaesu announce they would no longer repair original (non-ND) FT-817 radios?
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Sending their FT-817 to Yaesu may not be an option for OP, depending on his specific radio...
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Ken, N2VIP
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Re: need help with my old yeasu ft-817
Rob I have
a guy that does a great job on my radios. Had him work on my
817,Kenwood 200, Kenwood 450SAT.
His name is
Tim Moes in South Dakota.
?
E-mail is tommoes@....
He does not
accept bank cards. He is real reasonable. He does not charge you
until you get your radio back.
Dave
On 3/28/2025 7:30 AM, Rob VE3RXH via
groups.io wrote:
I sent mine to Yaesu in California.? Very happy with the
repair and I thought the cost was very fair.
?
--
Rob
VE3RXH
--
73's de NU4N
-- Thanks Dave NU4N
dwtucker19@...
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Re: Iambic mode - A or B?
John,
I'd second the recommendation for a single lever paddle.? A single lever is pretty much the same as using a bug.? If you accidentally manually key you dashes, the keyer will still accept the input (unless you like to send really long dashes with your bug!).? I use a 3D printed single lever paddle that was designed by Adam, K6ARK - actually, I printed a bunch of them and have one for each radio.
?
73,
Mike, KL7MJ
?
?
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Re: need help with my old yeasu ft-817
I'm curious what they did and what they charged. I sent an FT857D to Yaesu in California for repair a year ago. They told me they would need to replace the main board and it would cost over $650. This was more than I had paid for the radio. It gave me a clue, though, about where the trouble was. I had the radio returned to me.
What had happened was that I was operating portable on 50 MHz in a contest one day and saw some smoke come from the radio and it stopped transmitting. I had been looking for problems on the PA board, not the main board. After I got the radio back, I found a transistor on the main board that was burnt. I was able to order a replacement part from RF Parts and replace it for $5. It has been working ever since. I was surprised they didn't do that repair themselves.
Zack W9SZ
I sent mine to Yaesu in California.? Very happy with the repair and I thought the cost was very fair.
?
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Rob
VE3RXH
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Re: need help with my old yeasu ft-817
I sent mine to Yaesu in California.? Very happy with the repair and I thought the cost was very fair.
?
--
Rob
VE3RXH
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Re: need help with my old yeasu ft-817
Hi, when does not found an repair person, I have an address in Switzerland,
Write me when you not found an repair center in our city.
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Vy 73 de Martin HB3YDM
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Please remember the original Winamp battery has 9-12.6 V normal voltage 12.1 V?
Normal capacity 3000mah/33.3Wh
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Re: need help with my old yeasu ft-817
Yes Jerry I
use a great guy in South Dakota. He worked on my 817, Kenwood
2000, and Kenwood 450SAT. He does not take credit cards but the
best thing is he will not charge you until you get the radio.
Tell me some one else that will do that??!!
Midwest
Tech Services Tim Moes 605 881 2935
E-mail
tcmmoes@...
Check his
website midwest-technical.com
Great guy.
Good luck
Dave
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On 3/27/2025 5:15 PM, jerry buchanan via groups.io wrote:
is there someone outhere who i could send my radio to so i
can have it repaired? as i had it hooked up to a 2 meter amp and
something wierd happened and it was backfeed with rf somehow and
burned something up somewhere so i need my radio repaired?
thanks, jerry w5kaw
--
73's de NU4N
-- Thanks Dave NU4N
dwtucker19@...
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Or herre directly by Windcamp.
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https://www.windcamp.cn/productinfo/375211.html
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need help with my old yeasu ft-817
is there someone outhere who i could send my radio to so i can have it repaired? as i had it hooked up to a 2 meter amp and something wierd happened and it was backfeed with rf somehow and burned something up somewhere so i need my radio repaired? thanks, jerry w5kaw
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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
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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.
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73 Bruno
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Thanks every one. Think Ebay will do the
job.
Appreciate it.
Dave
On 3/27/2025 3:42 PM, K6AEF via
groups.io wrote:
?
Many of the kits on ebay have the option to buy just the
battery once you open the listing.
--
73's de NU4N
-- Thanks Dave NU4N
dwtucker19@...
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?
Many of the kits on ebay have the option to buy just the battery once you open the listing.
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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
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-------- 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.?
I’m sure there are differing opinions on this but my
experience with it has been very positive.?
On Mar 27, 2025, at 14:47, David
Tucker via groups.io <nu4ndave@...>
wrote:
?
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:
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:
Hi Dave does you have an pictures from the Battery
with the technical data?
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Vy 73 de Martin HB3YDM
--
73's de NU4N
--
73's de NU4N
--
Thanks Dave NU4N
--
73's de NU4N
-- Thanks Dave NU4N
dwtucker19@...
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Mike EI9FEB
David Tucker
Martin HB3YDM
Bruno R.
K6AEF