Re: Power output instable
Thanks to both. I'll check the diodes
?
I2OIM
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Re: Power output instable
Hi I had a 817ND that 2m tx was not working, I had to replace a diode,
If you look for my post
Dave 2E0DMB
On Thu, 12 Sept 2024, 13:39 Franco Corsi via , <franco.corsi1= [email protected]> wrote: Hi Peter, I had the same problem on the FT817 and I solved it by replacing the Q3003 and Q3005 HSU277 diodes. I hope this helps
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Re: Power output instable
Hi Peter, I had the same problem on the FT817 and I solved it by replacing the Q3003 and Q3005 HSU277 diodes. I hope this helps
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Re: Power output instable
@ Al WB9UVJ
No, it neaver succeded. I check antenna connectio tryng wit a different one (2m/70/23cm vertical) and the problem remain.
Some days it work at full power, other days it work bad with the two antennas...
?
73,
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I2oim
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Re: Power output instable
I didn't check it. The 2m bans works on the front connector, a will try.?
?
Tnx, 73
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Pietro
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Re: Power output instable
Pietro,
Does your display flash HSWR by any chance?? My 818 would do this from time to time.? I thought something was wrong with feedline, antenna or something else.? I examined everything.? As a last resort, I restored factory defaults and the problem went away.? It seems that software became corrupt due to a power connector and the outcome was the radio software misinterpreting the output power and SWR.? When the SWR becomes high (as sensed internally) the radio output is reduced.? Save your settings and memory (use CHIRP or some other software for memory) and reset to factory defaults.
--
Al Skierkiewicz
WB9UVJ
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Re: Power output instable
Does it do this on both front and rear outputs?
?
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Re: Power output instable
It happens with any mode on 2m and on all other bands everything works.
?
I2oim
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Re: Power output instable
Are you on SSB mode? ?That will show fluctuations on TX.?
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On Sep 10, 2024, at 05:25, Pietro Molina via groups.io <pietro@...> wrote:
? Ok. Let's see if anyone can give me a tip on where to look for my FT818.
I have a strange behavior on the 2 meter band, the output power (indicated by the display) is not constant when pressing the PTT.
Sometimes it reads 100%, sometimes 30%, sometimes 0. And actually the output power is different, it's not just the display. The SWR is slightly higher at low power, but not significantly.
It's not the antenna: I tried two, and one is a 70cm/2m dual band and on 70cm everything works great. It happens with any mode on 2m and on all other bands everything works.
I suspect a relay, but any tips on what to check would be appreciated.
?
73, I2OIM
?
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Bumping this as I was about to post and ask if anybody knows where the tap points are on an 818.
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73 M0JMU
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Ok. Let's see if anyone can give me a tip on where to look for my FT818.
I have a strange behavior on the 2 meter band, the output power (indicated by the display) is not constant when pressing the PTT.
Sometimes it reads 100%, sometimes 30%, sometimes 0. And actually the output power is different, it's not just the display. The SWR is slightly higher at low power, but not significantly.
It's not the antenna: I tried two, and one is a 70cm/2m dual band and on 70cm everything works great. It happens with any mode on 2m and on all other bands everything works.
I suspect a relay, but any tips on what to check would be appreciated.
?
73, I2OIM
?
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Re: Digital input sensitivity
Thanks to both. It answer my question.
?
Pietro
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On Sun, Sep 8, 2024 at 10:20 AM, Ken N2VIP wrote:
Is QRP HF Mobile really a thing?
When I 1st got my FT-817 back in 2002, I was senior? field engineer for a global computer company in New England. I used to drive a Ford Escort hatchback, manual transmission. I think the only option on the car was remote control rear view mirrors and am-fm radio.. I was doing about 30,000 miles per year.? All though Rush Limbaugh was on the radio, you can't take 5 days in a row, as he repeates himself.
?
So having just received the FT-817 for Christmas, I decided that I could at least listen to HF while mobiling between clients. Some calls were 2-3 hours apart.? I added a ball mount by the left tail light and a ham stick for 40 meters.? The rig would sit between the bucket seats next to the? VW type emergency brake, right by my right thigh..
?
The hamstick was tuned to 7263kc. - ECARS - East Cars daily net. and Off I went... The rig was easy enough to throw in the trunk for safe keeping when in areas of New England, not so nice..
?
During the year, On ECARS I could always check in with net control usually in Pennsylvania and I in New Hampshire. I had buddies I could contact back in Virginia as I used to live there for a while. I later at a hamfest bought a 20M hamstick used for $10 and tried 20 meters.. one thing about New England Mobile- changing antennas -changing bands was a pain in the @$$ as roads are narrow, distances are limited and well pick a band and operate or just listen.. On 20 meters best DX was South Africa...
?
After 9 months or so the clutch finally went on that Ford escort at about 160K and so did the mobile operation as I moved to a new 4X4 Chevy Tracker, FT-100 and a Hi-Q antenna mounted at the back of the externally mounted spare tire. Wish I still had that setup. that 4X4 would get 30mpg, and during 50K warranty, never went back to the dealer.. ?
?
So mobile operation with a FT-817 can be accomplished, the only reason I went to the FT-100 was face plate separation and of course the Hi-Q all band antenna..??
?
My current mobile set up is a ICOM 7000 with a HA-4 remote tuner and I use a single 40M hustler for all band coverage... Even 6 meters...I've been using that 10 years now..
?
5 watts mobile is not impossible..? so the guy gives you a 5x5 instead of a 5x9... doesn't bother my ego...? Many time just listening is a thrill...
?
Larry W8LM
Past President 2 terms, VFW post 3115 Amatuer Radio Club, W?VFW, Wichita, KS
?
?
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QRP is a compromise/challenging way to operate.
Mobile HF antennas are severe compromises.
QRP into mobile HF antenna in a vehicle in motion is compromise^2.
Parking a car and operating QRP with an antenna not attached to the vehicle isn't what I was thinking when I asked about QRP mobile, but I'll concede it's an undefined term.
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On Sep 9, 2024, at 08:09, Mike Prevatt <a.r.s.ku4yp@...> wrote:
?
Good morning,?
? ? I have run QRP mobile for contests. I have activated ?a rare county in the north Fl panhandle before. Worked from the front seat of my Jeep. A lot of compromise but yes, totally doable.?
? ? Wire antenna as high as you can get it. Or a vertical with as many temp radials as possible??
? ? Your mileage may vary.?
? ? 73 Mike N4MDP?
On Sunday, September 08 2024, 10:20:00, Ken N2VIP via groups.io
wrote:
> Is QRP HF Mobile really a thing?
no idea, I don't even own a car so it's something I don't
watch/care for. But... I do hear are some QRP activations made
from the car. How much of a thing is or if it's a "local only"
thing? no idea.
> Somehow thousands of IC-705 owners are happily carrying their
> similarly-shaped radios
> into the field and having a good time, perhaps the shape of the
> radio isn't really as horrible
> as you might think?
I'm not saying it's horrible or unenjoyable, just not really
suited for some use cases of my concern. Anyhoo there are plenty
of aftermarket supports for the 705 for some reason. Activations
in civilizated places should be OK (POTA, BOTA or so). Activating
from the wild as an far away SOTA, not as much.
--
One resolution I have made, and try always to keep, is this: To
rise above the little things.
? --- John Burroughs
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Re: Digital input sensitivity
Agree with Marco. Variable levels per mode.
The original poster, Pietro, referred to VHF as a band, and I phrased my answer to basically say "It will do what you want it to do between HF and VHF"
Mode-based levels have come in handy for me on both my 817nd and my 897d. DIG level on HF ssb, PKT level on VHF/UHF pkt pkt9600 mostly.
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Good morning,?
? ? I have run QRP mobile for contests. I have activated ?a rare county in the north Fl panhandle before. Worked from the front seat of my Jeep. A lot of compromise but yes, totally doable.?
? ? Wire antenna as high as you can get it. Or a vertical with as many temp radials as possible??
? ? Your mileage may vary.?
? ? 73 Mike N4MDP?
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On Sunday, September 08 2024, 10:20:00, Ken N2VIP via groups.io
wrote:
> Is QRP HF Mobile really a thing?
no idea, I don't even own a car so it's something I don't
watch/care for. But... I do hear are some QRP activations made
from the car. How much of a thing is or if it's a "local only"
thing? no idea.
> Somehow thousands of IC-705 owners are happily carrying their
> similarly-shaped radios
> into the field and having a good time, perhaps the shape of the
> radio isn't really as horrible
> as you might think?
I'm not saying it's horrible or unenjoyable, just not really
suited for some use cases of my concern. Anyhoo there are plenty
of aftermarket supports for the 705 for some reason. Activations
in civilizated places should be OK (POTA, BOTA or so). Activating
from the wild as an far away SOTA, not as much.
--
One resolution I have made, and try always to keep, is this: To
rise above the little things.
? --- John Burroughs
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Re: Digital input sensitivity
The dig input level is the same for all band and is controlled by DIG MIC setting (menu #25).
I double checked with the internal memory map and it appear to have just one memory position for the each mic level by mode (ssb, am, fm, dig, pkt, pkt9600) so there's no way to have different level per band.
best 73 de IZ3GME Marco
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On 29/08/24 12:14, Pietro Molina via groups.io wrote: Hi all, a little help.
Is the digital input sensitivity always the same for all bands?
Or I can have a different input volume for a specific band (VHF, in my case).
Tnx in advance
pietro I2OIM
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On Sunday, September 08 2024, 10:20:00, Ken N2VIP via groups.io wrote: Is QRP HF Mobile really a thing? no idea, I don't even own a car so it's something I don't watch/care for. But... I do hear are some QRP activations made from the car. How much of a thing is or if it's a "local only" thing? no idea. Somehow thousands of IC-705 owners are happily carrying their similarly-shaped radios
into the field and having a good time, perhaps the shape of the radio isn't really as horrible
as you might think? I'm not saying it's horrible or unenjoyable, just not really suited for some use cases of my concern. Anyhoo there are plenty of aftermarket supports for the 705 for some reason. Activations in civilizated places should be OK (POTA, BOTA or so). Activating from the wild as an far away SOTA, not as much. -- One resolution I have made, and try always to keep, is this: To rise above the little things. --- John Burroughs
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Mounting an FT817 is so easy it's hardly worth mentioning. Just use one or both cover screws located in four positions on the radio sides attached to angle brackets. Hardware stores carry angle braces which might need to be drilled, and you might need longer cover screws, but that's it.
Joe N1KHB?
On Sun, Sep 8, 2024 at 11:20 AM, Ken N2VIP <ken@...> wrote: The FTX-1 has a mobile mounting bracket? The FY-817/818 didn't...
Are we acting like this is a radio people will be mounting to/under their car dashboards? Is QRP HF Mobile really a thing?
Somehow thousands of IC-705 owners are happily carrying their similarly-shaped radios into the field and having a good time, perhaps the shape of the radio isn't really as horrible as you might think?
When the iC-705 was first announced, I said it reminded me of this classic Radio Shack item:
But over time I've learned to appreciate the IC-705's design. Ken, N2VIP On Sep 8, 2024, at 09:50, Andy Foad via groups.io <andyfoad@...> wrote:
? On Sun, Sep 8, 2024 at 10:40 AM, Luis Miguel Casta?eda wrote:
Exactly, Let apart what it can['t] do; this radio will be fine mounted on its bracket inside a car, or in a cabin table, probably even finer attached to a laptop. Radios with big touchscreens exposed and shaped like that aren't the kind of thing I like for the outdoor activations, no matter the brand.
Exactly ;-)
?
I have seen the required bracket required to keep it in a useable position,
not good at all. Who wants to carry that extra junk.
?
Bad bad design.
?
73 de Andy
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The FTX-1 has a mobile mounting bracket? The FY-817/818 didn't...
Are we acting like this is a radio people will be mounting to/under their car dashboards? Is QRP HF Mobile really a thing?
Somehow thousands of IC-705 owners are happily carrying their similarly-shaped radios into the field and having a good time, perhaps the shape of the radio isn't really as horrible as you might think?
When the iC-705 was first announced, I said it reminded me of this classic Radio Shack item:
But over time I've learned to appreciate the IC-705's design.
toggle quoted message
Show quoted text
On Sep 8, 2024, at 09:50, Andy Foad via groups.io <andyfoad@...> wrote:
? On Sun, Sep 8, 2024 at 10:40 AM, Luis Miguel Casta?eda wrote:
Exactly, Let apart what it can['t] do; this radio will be fine mounted on its bracket inside a car, or in a cabin table, probably even finer attached to a laptop. Radios with big touchscreens exposed and shaped like that aren't the kind of thing I like for the outdoor activations, no matter the brand.
Exactly ;-)
?
I have seen the required bracket required to keep it in a useable position,
not good at all. Who wants to carry that extra junk.
?
Bad bad design.
?
73 de Andy
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Pietro Molina
Franco Corsi
Al WB9UVJ
M0RON
Kevin - K5KTM
Larry Macionski