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WTB: FT-857
Bob
Hi, All, I like my FT-897 very much, but most of my ham operation in future is likely to be mobile, and so I could better use the smaller size and lesser weight of the FT-857. Is there anyone in the UK who might be interested in an exchange deal? I am located in North Norfolk. Please reply off-list by PM. Regards, Bob, G8IYK |
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Re: WSJT-X FT-8
Can you share them with me im setting up for FT-8 also thanks in advance KB1QDC Kev... KB1QDC@...
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FT-857D and lower TX power outside of HAM Frequencies
Hello folks, New to the forum. I just purchased the FT-857D and did the frequency expansion mod to see what this radio could do on the bench. What is interesting is, when putting the radio on a dummy load and meter, I see that the TX power drops off fairly fast when you get above 463Mhz to around 3 watts output at 467Mhz. The same occurs when you get much lower than 430Mhz. Additionally, on VHF it will do the same, albeit the bandwidth/range seems wider. Is this what you are all seeing? Have not tested HF output yet... I assume this is a limitation of the PA and filters which are tuned for HAM band only. Or do you know if the drive is microprocessor controlled which is limiting PA as you drift outside of designed frequency range? I don't plan on using the radio for anything outside the band, as I have type accepted radios for business band I'm licensed for, etc. It was primarily for *just in case* emergency and the idea of seeing what this radio can really do. At any rate, I'm curious to see what power output you're seeing in a dummy load on the test bench to see if this is expected behavior. Thanks, -J |
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Re: WSJT-X FT-8
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Re: Battery issues - FT-857 mobile with ATAS-120
Yes, thank you.? Douglas Wyman was kind enough to remind me.? That is what I get for attempting to go straight from memory instead of visiting the manual before posting.
I do vividly recall that for the ATAS-120 to work well, though, that both the radio and antenna need to be at the same, lowest ground potential. In some rare cases, if the radio is mounted in the cab of a truck and the antenna on the bed, and these are not at the same ground potential, they may not work well.?? I had mine, on my previous truck, mounted directly to the cab roof and the radio to the sheet metal inside the cab against the back.?? Unlike other radios, the FT-857 does not have a ground lug, and you may correct me if I am wrong here, and I am sure someone will, but the grounding comes from the mobile mount.?? |
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Re: Battery issues - FT-857 mobile with ATAS-120
marty duplissey
Actually the brown wire is a battery sense. It changes the power out to conserve battery when it is energized. The atas120 is controlled by a dc voltage imposed on the coax line. Less than approximately 9v go down more than 9v go up.?
N5KBP? |
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Re: Battery issues - FT-857 mobile with ATAS-120
¿ªÔÆÌåÓýThe brown wire when connected to ground reduces output of the 857D to 20 watts automatically. KA2HPG On 5/22/2018 9:35 PM, Jeff Maxwell
ka0kaf@... [FT-857] wrote:
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Re: Restoring 146-148
Old thread. I also have a Japanese FT-857. The MARS mod 888I88III does not unlock anything. Actually removing the zero ohm resistor at at position 3 (fornt front to back) makes me loose WIDE RX on V/H. Did anyone get his Japanese rig opened up for TX on the upper segments V/H? I need TX in the upper segments in order to be able to use repeater in my country (CE). Steve (ON4CDM/XQ3ON) |
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Re: WSJT-X FT-8
I finally got it to work. Here are my settings below. I am using a
SignaLink USB interface and an RT systems interface cable for CAT control. Ryan WG4I On Sat, Apr 28, 2018 at 10:07 PM, toddjam@... [FT-857] < FT-857@...> wrote:
[Non-text portions of this message have been removed] |
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Re: WSJT-X FT-8
If we are speaking of the protocol settings for the cat connection for the FT-857 & 817, I do not think that there are any that work.
The correct settings, as tested successfully with various other programs, do not work with the WSJT-X. I have tried with both a Bluetooth and a USB/Serial interface. (These work with other programs as well.) The WSJT does work with my TS-2000. This is with a Mac. I have read elsewhere that the same failure of WSJT to control the FT857 & 817 is seen in Windows. |
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Re: WSJT-X FT-8
Did anyone ever figure out the settings for the 857 using a SignaLink and WSJT-X ? Ryan WG4I On Mon, Apr 23, 2018 at 3:16 PM, wv2c@... [FT-857] <FT-857@...> wrote:
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