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Author Topic: FTDX101D shuts down  (Read 854 times)

KJ6TSX

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FTDX101D shuts down
« on: January 16, 2021, 12:58:51 PM »

Hello
My FTDX101D shuts down, completely turns off and needs to be restarted. This happens occasionally when transmitting.
I have a Astron RS20 power supply and a Hex beam for antenna. This last time it crashed I had replied to another stations CQ then when giving the signal report the radio crashed?? I then restarted the radio went into CW mode 100 watts to check for high SWR, SWR OK
Did not have way to check power supply. any way to determine the issue
Thanks
George KJ6TSX
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N8NK

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Re: FTDX101D shuts down
« Reply #1 on: January 16, 2021, 01:37:45 PM »

Hi there..
I'd highly suspect your power supply. I have an FTdx-3000, and when using a battery for power- as soon as the voltage sage to below a certain level, the rig shuts down. I've seen it happen several times.. and I've also seen the rig go into a continuous boot-reboot cycle when the input voltate was down to something like 10.5 volts. That's a nice rig you've got! Good luck...
Chuck
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W7TX

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Re: FTDX101D shuts down
« Reply #2 on: January 16, 2021, 01:38:55 PM »

Your power supply is too small.  The FTDX-101D draws almost 4 amps just in RX.  I often see 23 amps depending on mode and band.  Cut your RF out to 50 watts and see if you still have a problem.  Mine runs on a 30 amp switcher PS.  The RS 20 is a 16 amp supply with momentary peaks of 20 amps.
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W1VT

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Re: FTDX101D shuts down
« Reply #3 on: January 16, 2021, 02:44:42 PM »

Yes, the RS-20 is too small for a 100 watt radio.  One way to stop it from shutting down is to reduce power output to 80 watts or less but most hams want 100 watts.

Zak W1VT
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K9IUQ

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Re: FTDX101D shuts down
« Reply #4 on: January 16, 2021, 03:37:57 PM »

Hello
My FTDX101D shuts down, completely turns off and needs to be restarted.

Did not have way to check power supply. any way to determine the issue
Thanks
George KJ6TSX

How can a ham not check a power supply? You can buy a $10 digital meter at any Harbor Freight, hell they used to give em away.... Gosh you been a ham since 2012 and can't check a power supply????

Spend less on your radio and more on ham books for gaining some ham knowledge. Better yet learn how to RTFM, from the Astron 20 manual: Power Supply Continuous Output:16A at 13.8 Vdc and Power Supply Peak Output:20A at 13.8 Vdc

And what does your FTDX101D want for a power supply?? I know the answer but you got the manual. LOOK IT UP YOURSELF.

Oh Yeah, spend more on a 35 amp power supply that can actually properly power your radio.   

Stan K9IUQ
« Last Edit: January 16, 2021, 03:45:23 PM by K9IUQ »
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KJ6TSX

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Re: FTDX101D shuts down
« Reply #5 on: January 16, 2021, 03:57:37 PM »

Thanks for all the Help

Quote
Spend less on your radio and more on ham books for gaining some ham knowledge. Oh Yeah, spend more on a 35 amp power supply that can actually properly power your radio.
Stan Thank You Too
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K9IUQ

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Re: FTDX101D shuts down
« Reply #6 on: January 16, 2021, 04:09:45 PM »

Thanks for all the Help


Stan Thank You Too

I WAS harsh with you for a reason. Instead of giving you the fish like most hams here on  eham, I want you to learn how to fish;)

You should read your manuals BEFORE posting publicly on a forum. In fact 5 minutes of searching on the net could have found your answer without looking foolish here on eHam. You look like someone I would like from your QRZ.com picture, good luck with your FDX101D, THAT was a good choice.

Stan K9IUQ
« Last Edit: January 16, 2021, 04:13:36 PM by K9IUQ »
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KJ6TSX

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Re: FTDX101D shuts down
« Reply #7 on: January 16, 2021, 04:21:16 PM »

Stan
It made me think<Grin> Job well done!
George
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VE3WGO

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Re: FTDX101D shuts down
« Reply #8 on: January 16, 2021, 05:06:15 PM »

right.  As mentioned, the RS-20 is too small.

Most 100 watt DSP-based featured transceivers (the FTDX101, FTDX10, TS-890, IC-7610) need about 23 Amps in transmit mode at 100W out.  A 20 Amp supply will be overcurrent at that level, and might even start its foldback current limit which would cut the output voltage to protect the supply.  And then the radio would shut down.

It would be best to get a supply that will be rated for the 23 Amp load continuously, which is at least a 30 Amp intermittent rating.  If you want to upgrade your Astron linear supply, may I recommend the RS-35M.  I have 2 of these and they work flawlessly.

73, Ed
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KJ6TSX

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Re: FTDX101D shuts down
« Reply #9 on: January 17, 2021, 08:18:03 AM »

I went with the RS-70M-AP it will provide plenty of power and room for expansion such as having another radio on at the same time. Probably would never key up on both at the same time<GRIN> it also has the voltage and amperage meters so I can monitor draw. Price difference was minimal

Thanks
George
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K9IUQ

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Re: FTDX101D shuts down
« Reply #10 on: January 17, 2021, 11:03:06 AM »

I went with the RS-70M-AP it will provide plenty of power and room for expansion such as having another radio on at the same time. Probably would never key up on both at the same time<GRIN> it also has the voltage and amperage meters so I can monitor draw. Price difference was minimal

Thanks
George

Good choice, you are set for life. I bought an Astron RS50M brand new in the 1980's and still use it today. The meters no longer work but the supply chugs along at 13.8 volts like it has forever. A few years ago the on/off switch failed. I emailed Astron to get me the part number so I could order one. Astron sent me a new switch postpaid FREE. Support does not get better than that, especially after 35 plus years of ownership......

Stan K9IUQ
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KX2T

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Re: FTDX101D shuts down
« Reply #11 on: January 19, 2021, 07:49:26 AM »

I recently sold a 7300 to a ham who hooked it up to a Pyle 12VDC power supply and at 50W out the radio shut down but for some strange reason not at the full 100W output, my first guess was the fuses in the power cord, since I had only used that radio for 9 months as a backup I never really had transmitted on it for any length of time. He changed the fuses plus place the Astron PS which was I believe a RM70 which would have enough to run almost three radio's, long story short way too many don't read or understand what continues duty really means and buy cheap ass power supplies that barley have enough to run these radio's today.
Back a few years ago I had a PS that was rated at 23amps but the company never published a continues duty rating on it, it ran a K3 I had and then a TS590S then when I went with a FTDX3000 it would shut down the radio, well after ordering up a 35amp PS that had zero issue and then the radio never once shut down. Sometimes the continues duty ratings are not given but in that case if the PS is rated at 30 amps it should run most 100W 12v radio's but don't be a cheap ham buy a decent supply!
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K6JH

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Re: FTDX101D shuts down
« Reply #12 on: February 27, 2021, 10:47:19 PM »

Don't be so hasty! Yeah, it's probably a too small supply, but:

If this configuration has been working for a while and this behavior is a new development, check for loose wires in the 12V power cord connections, loose wire in connectors, etc. Or maybe too small wire gage if you're not connecting the Yaesu OEM power cord directly to the supply (like using an Anderson Power Plug Distribution Panel or something, especially if it adds additional fuses in line). Sometimes it can be a simple thing.

To those complaining about not using a DVM to troubleshoot this, a typical DVM will likely be too slow to show you a momentary dip in supply voltage. Most HAMs don't own an oscilloscope, which is the instrument of choice to diagnose this.
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73
Jim K6JH

KX2T

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Re: FTDX101D shuts down
« Reply #13 on: November 23, 2021, 05:55:16 AM »

Power supplies make a big difference especially in a shack were there are other small devices that run off a 12V supply and most ham's go for the cheap way out but when buying an expensive radio it pays to spend a few dollars more on a decent power supply that has enough continuous duty amperage to more than handle the job. A samlex SEC 1235 make a good but fairly inexpensive PS for just the radio but anywhere between a 40 to 70 amp supply would give you more than enough headroom to run a lot more in the shack.
BTW to Stan, I purchased a 101D, most incredible radio I have ever owned!
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AC7CW

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Re: FTDX101D shuts down
« Reply #14 on: November 23, 2021, 06:25:51 AM »

Don't be so hasty! Yeah, it's probably a too small supply, but:

If this configuration has been working for a while and this behavior is a new development, check for loose wires in the 12V power cord connections, loose wire in connectors, etc. Or maybe too small wire gage if you're not connecting the Yaesu OEM power cord directly to the supply (like using an Anderson Power Plug Distribution Panel or something, especially if it adds additional fuses in line). Sometimes it can be a simple thing.

To those complaining about not using a DVM to troubleshoot this, a typical DVM will likely be too slow to show you a momentary dip in supply voltage. Most HAMs don't own an oscilloscope, which is the instrument of choice to diagnose this.

Analog meters will show momentary changes. Power supplies with analog meters are good for that reason and others.
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Novice 1958, 20WPM Extra now... (and get off my lawn)
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