FT8 works FT4 Does Not
Hello,
I am new to digital HF. I am using an early FT-817 with W-SJTX or JSTX and experience the same issue, that has me stumped. I am able to use FT8 without any issue, but FT4 just does not work. I
By
Marc WR2I
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#114994
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Re: For Sale: MURATA CFJ455K-14 2.4Khz CERAMIC SSB FILTER
Good info. Thank you.
By
Ham Radio
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#114993
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Re: For Sale: MURATA CFJ455K-14 2.4Khz CERAMIC SSB FILTER
Isn't that the stock filter that comes inside the FT 817 and 818? The K5
version has steeper skirts and comes stock in the TS 830 and the Icom 703
and 706 as I recall. I've had a few, they all had
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Freyja Clark Turner
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#114992
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For Sale: MURATA CFJ455K-14 2.4Khz CERAMIC SSB FILTER
This 2.4 KHz SSB filter has been tested in my FT817.
The mounting PCB is a bit short so I just added an external connector. See the pic for details.
If you wish, you can order the exact mounting PCB
By
Ham Radio
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#114991
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Re: How to assemble an Collins filter + Board for FT-817/857 and save $$$!!!
I have an FT857D that has a DSP filter. It will go down to 60 Hz width. I
will tune in a CW signal at a much wider bandwidth, then narrow it down to
120 or 60 Hz if need be. Very useful. I wish the
By
Zack Widup
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#114990
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Re: How to assemble an Collins filter + Board for FT-817/857 and save $$$!!!
I dont think you would like a 100 Hz filter.? Makes tuning to find stations difficult.? I use a 300 Hz Collins filter in my FT817 and also other rigs with IF DSP with adjustable filters for CW.? I
By
Ron Wright
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#114989
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Re: How to assemble an Collins filter + Board for FT-817/857 and save $$$!!!
What other filters exist for the 817/818 rigs?
Looking at INRAD's old page I see a couple of options, though they are long gone.
https://www.inrad.net/home.php?cat=16
CW: 300 and 500Hz
SSB: 2000,
By
Greg, K3RW
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#114988
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Re: TX power symbology (FT-818 specific)
And, what about this?
https://reflector.sota.org.uk/t/elecret-microphone-for-the-ft817-857/12614
[email protected]> wrote:
By
KM4JHK paul
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#114987
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Re: TX power symbology (FT-818 specific)
Matt,
Just go ahead and send me those portable zero rails that you're not using.
As for a mic, how about
By
KM4JHK paul
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#114986
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Re: TX power symbology (FT-818 specific)
Hi Matt,
I believe that the 818 is almost identical to the 817 in operation with just a few enhancements. So here are my comments.
The power indication flashing or not flashing when in the high
By
Eric van de Weyer
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#114985
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Re: TX power symbology (FT-818 specific)
Okay, learned some today. I off-loaded the Windcamp battery and went out with the Bioenno 12v/3Ah for a SOTA activation. Indeed the power symbology did change with the external battery to show the
By
Matt W7MDN
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#114984
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Re: TX power symbology (FT-818 specific)
I use B to cycle POW and Swr to make ture things are working properly.
Blinking power symbol is correct for full power on internal battery. On 13.8v there will be no power logo.
One other thing you
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Tobias KK7BCO/2M0TFF
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#114983
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Re: TX power symbology (FT-818 specific)
Andy:
I have not, but will bring the 12v Bioenno LiFePo next time. I don't have a home power supply; no setup at the house.
Coax is a 10' length of RG-316, off the ground to the max extent possible.
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Matt W7MDN
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#114982
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Re: TX power symbology (FT-818 specific)
I wasn't aware of that WRT the POW graph. I think it was going full right but will need to look next time. I do recall the L)) was blinking when I was in TX and sometimes in RX. I'm only using the
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Matt W7MDN
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#114981
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Edited
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Re: TX power symbology (FT-818 specific)
Hi Matt,
Have you tried to see what power options your radio gives when on a 13.8v external power supply? You should get all 4 options.
I have the 817 and 818, both give full power on a psu and
By
M0RON
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#114980
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Re: TX power symbology (FT-818 specific)
With no logo visible you will have 6w, when the voltage of the battery drops below (not sure exactly but something near) 11v the logo will blink. But still at full output.
It's not the clearest, but
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Tobias KK7BCO/2M0TFF
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#114979
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TX power symbology (FT-818 specific)
FT-818 Jedis:
Recent owner of a FT-818ND. The book and Nifty manual state there should be four symbols for determining TX power:
[blank] - full 6W (5W internal battery)
L))) - 2.5W
L)) - 1.0W
L) -
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Matt W7MDN
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#114978
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Re: Measuring the output power
Two excellent field tools to establish that your radio actually transmits are:
* See how fast a resistor heats up using a calibrated ouchometer - thanks VK3YE
By
simon
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#114977
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2024 Flight of the Bumblebees
*FT-817's set the world on fire for Portable QRP Operation.? ?Now would be a good time to get your FT-817/FT-818 out there and turn it into a Bumblebee !!
2024 Flight of the Bumblebees*
The annual
By
Jody - K3JZD
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#114976
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Re: Measuring the output power
Germainium diode voltage drop drifts with temperature, that's why
we don't use them anymore.
Use a decent Shottky diode with ultra low capacitance like a BAS70
with only 1pf.
They will be good for
By
G0FTD
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#114975
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