Re: Measuring the output power
You can build a simple RF probe but you need to calibrate it. ?A simple SWR meter does not measure power over a wide range of frequencies. ?If possible, borrow a Bird 43 wattmeter from a local
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Re: my ft 817 flashes unstable
It sounds like you need to look at the radios reference frequency/tcxo if
it has it fitted,
Or the std module,
Dave 2E0DMB
[email protected]> wrote:
By
davebb123456
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#114930
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Re: my ft 817 flashes unstable
the battery not installed
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Rami Finge <ramifinge@...>
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#114929
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Re: my ft 817 flashes unstable
thanks for you reply
i have everything on display but the bands flashing dont work? only when i put voltage up to 14 volts some bands about 4 only become stable
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Rami Finge <ramifinge@...>
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#114928
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Re: my ft 817 flashes unstable
Flashes?? Does it indicate anything on the display?? HSWR, or something else?? Do you have a battery installed?
--
Al Skierkiewicz
WB9UVJ
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Al WB9UVJ
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#114927
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Re: Measuring the output power
Multimeters rarely will measure above a couple of hundred Hz.? You could use an RF probe and a dummy load.? I bought a Surecom power meter on Amazon a few months back for UHF and VHF.? They also
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Re: Measuring the output power
And with a good dummy load.
Or use a terminating wattmeter such as the Bird 6104 Which has scales down to 2W FSD.
73….Eric VK2VE.
Sent: Wednesday, June 26, 2024 1:55 AM
To:
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Eric van de Weyer
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#114925
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Re: Measuring the output power
The best way is with an accurate wattmeter. I have a Bird 43 with an
assortment of slugs, including 5 and 10 watt slugs for HF, VHF and UHF
bands.
Zack W9SZ
[email protected]>
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Zack Widup
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#114924
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my ft 817 flashes unstable
Hello ,
Have you encountered this problem? my ft 817 worked very well for 2 years in digital mode, now it flashes on all bands if I increase the voltage towards 14 volts it stabilizes on a few
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Rami Finge <ramifinge@...>
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#114923
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Re: Measuring the output power
And don't forget to check the rf output on the 6 bands mentioned in the service manual in case a golden screwdriver has been in the alignment menus, there are 24 outputs in total that can be
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M0RON
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#114922
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Re: Measuring the output power
Measure the peak-to-peak voltage across a dummy load with an oscilloscope.
--
Mike G8GYW
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Mike
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#114921
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Re: Measuring the output power
A swr meter aint gonna give you a power reading is it, its gonna give you a swr reading, unless you get something like a cross needle power/swr meter or the like, as for the mulitmeter, err i dont
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Michael Newbury SA4MDN
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#114920
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Measuring the output power
Hello,
Beside getting a SWR meter is there a different way to measure the actual power from the ft817? ?Could I use a multimeter?
regard,
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on3plz
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#114919
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Re: Power question - Battery related
Hi, I personally use 4 Li-Ion cells and I get more than enough capacity to
tackle mountain outings in QRP. with an excellent power/weight ratio. Since
4 cells produce a higher voltage than the
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Franco Corsi
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#114918
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Re: Power question - Battery related
Thanks for the info Steve. Sounds like the way to go.
Kevin Mullens
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Kevin - K5KTM
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#114917
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Re: Power question - Battery related
Kevin, The WindCamp Battery is Way OVERPRICED and one of the (3) 3000 Mah Cells will "Fail"even in conservative Use, I know I found it the Hard $ Way.
Real 3000 Mah NickelMetalHidride Packs are
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Steve Sawicki
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#114916
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Re: Power question - Battery related
Well it turned out to be the battery. It’s been working well for a while (10 months or so) but didn’t have enough poot for the radio to recognize it. I ended up putting my much larger 12ah that I
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Kevin - K5KTM
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#114915
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Re: eBay filters
Thanks John. I don’t have much use for the CW filters as I am an SSB op. Haven't used CW since my test haha. I think I’m going to skip the filter entirely. Doesn’t seem to make enough difference
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Kevin - K5KTM
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#114914
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Power question - Battery related
Hi all. I am experiencing a weird situation, I apologize ahead of time as I am a newbie to the 817.
When I plug in an external battery the radio is not seeing it. I have a car power adaptor which it
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Kevin - K5KTM
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#114913
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Re: eBay filters
The only good filter is a cw one by Yaesu
The Yaesu SSB filter is a bit better. qRP ARCI has an article on them and
the graph showed some tighter skirts but I found it wasn't worth $279
Canadian for
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John
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#114912
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