Re: FT-857D Randomly powering on/off
Hi Bob:
Not going to do a rewiring job until summer time, but since 2016 I have been using the Hall Device method which is highly recommended as the new wiring practice and never had a problem. But as we all now anything is possible though. Tnx for the info.
73 De Mike
VE3YF
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Re: FT-857D Randomly powering on/off
Does anyone know what the control cable pinout is between the radio and the display? It looks like it's a 6-pin RJ-12 cable.
I'm curious how the CPU in the radio talks to the microcontroller in the display head and if an intermittent connection here could cause Mike's symptoms.
73, Joe W6JHP
On Tue, Jan 14, 2020 at 11:27 AM Mike VE3YF < mike@...> wrote: The problem is, the radio turned on then off by itself, not the other way around.
Poor electrical connections would not cause the radio to turn on by itself.
Also I am using heavier gauge cable than Yaesu supplied, but gauge of the wire would not cause the radio to turn on by itself.
If you don't go thru the Hall device the Alternator can't effectively tell when the battery needs charging.
Back years ago there never was a Hall Device in the vehicle charging system, this is a somewhat recent addition to all new vehicles. The new recommended connection point is the Hall device and not the + post of the battery.
The radio has been in the vehicle since I purchased the vehicle new in 2018 and this is the first time it has happened. All electrical connections are good and clean and tight.
73 De Mike
VE3YF
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Re: FT-857D Randomly powering on/off
Have you tried a direct connection to the batttery +12v, bypass the Hall device? I personally always go directly to 12v.,never a problem. Comments? Bob? Wa7dxz
Sent from my Verizon, Samsung Galaxy smartphone
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Re: FT-857D Randomly powering on/off
The problem is, the radio turned on then off by itself, not the other way around.
Poor electrical connections would not cause the radio to turn on by itself.
Also I am using heavier gauge cable than Yaesu supplied, but gauge of the wire would not cause the radio to turn on by itself.
If you don't go thru the Hall device the Alternator can't effectively tell when the battery needs charging.
Back years ago there never was a Hall Device in the vehicle charging system, this is a somewhat recent addition to all new vehicles. The new recommended connection point is the Hall device and not the + post of the battery.
The radio has been in the vehicle since I purchased the vehicle new in 2018 and this is the first time it has happened. All electrical connections are good and clean and tight.
73 De Mike
VE3YF
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Re: FT-857D Randomly powering on/off
I ran the radio in my company truck for 10 years. Get in in the morning, start the truck, power on the radios. Working dusty construction in all kinds of weather. Leave them on all day. Restart the truck 20, 30 times a day with radios on. Used 10 gauge wire pos and neg from battery. Not going through any hall devices. Sold the 857 when I retired, still using the ft8800 every day. I had the radios mounted under rear seat. Can't say if cooling fan was on. Worked all over the world. Good luck.
Sent from my Verizon, Samsung Galaxy smartphone
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-------- Original message -------- From: Mike VE3YF <mike@...> Date: 1/14/20 9:58 AM (GMT-05:00) Subject: Re: [FT-857] FT-857D Randomly powering on/off
Hi: The power connections were the first thing that I had checked and nice and solid and no corrosion at the battery. I checked at the rig and also at the Hall device and everything is good and tight. Funny thing is I also have a APRS device it also draws power from the same source (Hall Device) and it was not intermittent so thinking something was amiss at the rig. 73 De Mike VE3YF
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Re: FT-857D Randomly powering on/off
Hi:
Hi Bob, yes the radio has the head mounted up front and the radio in the back. I will clean the contacts on the remote cable. So far in a couple days the problem has not re-appeared. Thanks for the heads up on the remote cable.
Hi Others, as far as the powering on then off, power connections, grounds and the cables can't be the issue. The radio powered itself on then off repeatedly by itself for approx 5 minutes. Since then no problems. Poor connection at the battery (Hall Device) can't be the problem, why would the radio come on by itself. I also have another device hooked up to the Hall device and it was not effected. Poor connections, bad power cables would not explain why the radio would power on by itself. Also nobody said the radio would power off when the vehicle was started. This all happened after the vehicle had been running for 10 or so minutes.
So the only reason this is happening looks like the remote cable, which I will check out.
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Re: FT-857D Randomly powering on/off
You need to power the radio from the battery with 10 gauge wire and have good grounds. Radio shutting down when vehicle is started is an indication of poor supply voltage. Battery, wires, or connections.
Sent from my Verizon, Samsung Galaxy smartphone
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-------- Original message -------- From: Robert Hudson <vk2aor@...> Date: 1/14/20 5:40 AM (GMT-05:00) Cc: vk2aor <vk2aor@...> Subject: Re: [FT-857] FT-857D Randomly powering on/off
Hi All I experience this from time to time, the head control is remotely installed on the dashboard with an FTM-400 head mounted above it on a home built bracket. Usually both radios are on at the same time and sometimes when starting the Prado the 857 display goes blank but the radio is still working.?? I found removing the head from the nest and pushing the connecting cable back into the socket fixes it. Not sure this is your problem but hope it helps someone. Bob? VK2AOR
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Re: FT-857D Randomly powering on/off
Hi All
I experience this from time to time, the head control is remotely installed on the dashboard with an FTM-400 head mounted above it on a home built bracket.
Usually both radios are on at the same time and sometimes when starting the Prado the 857 display goes blank but the radio is still working. I found removing the head from the nest and pushing the connecting cable back into the socket fixes it.
Not sure this is your problem but hope it helps someone.
Bob VK2AOR
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Re: FT-857D Randomly powering on/off
I've had similar -- Turned out to be an intermittent power lead?
:-D
?. . . or is that too obvious?
On 13/01/2020 08:29 pm, Mike VE3YF
wrote:
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Hi:
This has never happened before. I use the rig in the car and the
other day the rig would randomly power on and then immediately
off. It would keep on doing this for 5 minutes and then stayed
off. Like I said this has never happened before and wonder if
anyone has experienced this before. A little scary as I don't want
to have it turning on/off by itself, as sure would hate to go to
the car to find the battery dead.
I do have the rig set via the menu to turn off after 1 hr, but
can't see this is faulty.
Has anyone experienced this occurrence.
73 De Mike
VE3YF
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Re: FT-857D Randomly powering on/off
My '857D was powering off by itself... I suspected it was the MFJ power cable that I was using at home (as I dedicated the Yaesu power cable that came with the radio to the vehicle).
Sometimes the MFJ connector got hot, so I suspected that was the problem.
I dumped the MFJ cable and got a genuine?Yaesu power cable, and not a problem since.
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Re: FT-857D Randomly powering on/off
Sounds like a loose power connection. That's the problem I had when my radio was on the blink.
73, Joe W6JHP
On Mon, Jan 13, 2020 at 7:17 PM Mike VE3YF < mike@...> wrote: Hi:
This has never happened before. I use the rig in the car and the other day the rig would randomly power on and then immediately off. It would keep on doing this for 5 minutes and then stayed off. Like I said this has never happened before and wonder if anyone has experienced this before. A little scary as I don't want to have it turning on/off by itself, as sure would hate to go to the car to find the battery dead.
I do have the rig set via the menu to turn off after 1 hr, but can't see this is faulty.
Has anyone experienced this occurrence.
73 De Mike
VE3YF
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FT-857D Randomly powering on/off
Hi:
This has never happened before. I use the rig in the car and the other day the rig would randomly power on and then immediately off. It would keep on doing this for 5 minutes and then stayed off. Like I said this has never happened before and wonder if anyone has experienced this before. A little scary as I don't want to have it turning on/off by itself, as sure would hate to go to the car to find the battery dead.
I do have the rig set via the menu to turn off after 1 hr, but can't see this is faulty.
Has anyone experienced this occurrence.
73 De Mike
VE3YF
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NO !? I bought mine around 10yrars ago (used!) and it's not let
me down yet :-)
It's been used in the shack (HF, VHF, UHF), almost every year for
6 metres on Field Day, Half a dozen times a year for RAYNET
events, as well as regular mobile activities.
The only problem I've had is QRM when I'm trying to work my
favourite VHF Repeater morning sked, since I've moved home and
occurs when the shop below me opens and turns on their lights?:-D and that has
become less of a problem since they (the shop) have reduced their
opening hours ! !
Stu (G3OCR)
On 12/01/2020 04:52 pm, Bob L via
Groups.Io wrote:
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With all these? 857d problems showing
up,,,is mine worth keeping? Is it, 857d's, a lemon, bad
design, or, how common are these problems. I bought mine
mainly for occasional portable use. Is it going to disappoint
me?
Bob?
Wa7dxz
Sent from my
Verizon, Samsung Galaxy smartphone
-------- Original message --------
Date: 1/12/20 9:33 AM (GMT-07:00)
Subject: Re: [FT-857] Power out issue
Hi Jack,
Sorry to report, but I had the same issues 7 months ago with my
FT-857.? Did the reset, but no joy.? I ended up sending the rig
back to Yaesu for repair.? They were not helpful in defining the
problem, but the final invoice showed three ceramic filters
replaced (at $0.71 each).? Most of my costs went into shipping and
labor.? Final outcome is the rig works fine now.??
Good luck & 73,
Jack
W1JS
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Bob,
I have two 857D's one I got in 2007 the other in 2010 both used as mobile units from day one and the only problem I have ever had with either unit is the old zebra striping of the display but each to his or her own so if you decided you don't want the 857 I am sure there are lots of folks me included that will be more than willing to take it off your hands.
Troy
KE4SKA ?
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It¡¯s ironic that we wanted to be radio people and ended up mostly being computer people.
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Thanks Jack...suspect you are correct. Just sent my 857 for local repair, he is amazing.
Will report back when repaired.
Also, my 857 is over 10 years old and has been abused in the field (Haiti earthquake) on boats
I think they are almost bullet proof.
Regards,
Jack W4GRJ
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That's correct.
--
Leonard K. Pennock (AD7AS)
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On January 12, 2020 7:26:42 PM MST, va3ag@... wrote:
[Edited Message Follows]
Thank you for your answer Leonard, Then i need to set to the dial freq. in other words the center frequency minus 1.5 KC? and the mode to USB correct?
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Thank you for your answer Leonard, Then i need to set to the dial freq. in other words the center frequency minus 1.5 KC? and the mode to USB correct?
--
Aldo VA3AG
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Once the radio has been opened the special memories are gone and cannot be restored.
To program the 60m frequency in a regular memory you need to use carrier frequency rather than the center frequency.
--
Leonard K. Pennock (AD7AS)
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On January 12, 2020 4:57:48 PM MST, va3ag@... wrote:
Recently purchased an FT-857D (Used) I am not able to get the pre-programmed 60 M channels M-601 to M-605. I called Yaesu to find out if I had a problem with the radio and they tell me that the previous owner must have done a motification to open up the transmitter, They asked me to tune below 7 MHz and PTT. Yes it is transmitting there and that confirms that there was a modification done. Does anyone know how to get M-601 to M-605 Back? I programmed the 5 Channels in Memory to the Dial frequency (Not the centre Freq.) I hear activity on the channels no problem but I am not sure that this is the right way to set those channels up. Can anyone help?
Thanks
Aldo VA3AG
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Recently purchased an FT-857D (Used) I am not able to get the pre-programmed 60 M channels M-601 to M-605. I called Yaesu to find out if I had a problem with the radio and they tell me that the previous owner must have done a motification to open up the transmitter, They asked me to tune below 7 MHz and PTT. Yes it is transmitting there and that confirms that there was a modification done. Does anyone know how to get M-601 to M-605 Back? I programmed the 5 Channels in Memory to the Dial frequency (Not the centre Freq.) I hear activity on the channels no problem but I am not sure that this is the right way to set those channels up. Can anyone help?
Thanks
Aldo VA3AG
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Mike VE3YF