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Author Topic: Remote Power On For Amplifier  (Read 10855 times)
W3DDF
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Posts: 77




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« on: April 05, 2014, 08:50:39 AM »

I am setting up my station to be remotely accessed.  So far it is working well.  I will be using a DLI web power switch to power on all the 120v devices via the internet. I was wondering how I would go about remotely powering up my Tokyo Hy Power amp that is running 240v.  I have been reading about using relays.  Any suggestions and items needed to purchase would be appreciated.  Thanks. Charlie
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AA4PB
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« Reply #1 on: April 05, 2014, 09:46:24 AM »

Just use a relay with a 120VAC coil and power the coil from the output of your power switch. Make sure that you use a double pole relay so that you open both hot leads of the 240V circuit. Make sure that the contacts are rated for at least 240VAC and for at least 20A. If you use a metal box to enclose the relay, make sure that the box is connected to the grounding pin of the 240V plug.

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WB2WIK
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« Reply #2 on: April 10, 2014, 02:10:14 PM »

I don't have a Tokyo Hy-Power amp, but with most amps I wouldn't remotely switch them on and off using the power mains; I'd rather they be in "standby" and then switched to "operate" if and when called on to work.

Standby power in a solid state amp should be close to zero, except maybe if the fans are always turning -- and that wouldn't be much.

Although I don't operate remotely myself, I never turn off any SS amps in my home shack, even if we go away for two weeks or any length of time.  I can't think of any reason to actually turn them off. Wink
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W3DDF
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« Reply #3 on: April 10, 2014, 04:47:54 PM »

If I did leave the amp on and in standby how would I remotely place the amp in operate?
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KH6VP
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« Reply #4 on: December 12, 2014, 05:31:29 AM »

I use a remote power switch (works on 240V) controlled by a mobile phone (built-in). All you need is a sim card (I use one that has no monthly charges) and then using text messages you turn the on-board socket on or off. Works great and doesnt depend on the internet or DSL. It needs cellular access obviously.  I have also bought the three socket version but havent installed it yet.
http://www.ebay.com/itm/New-Fashion-Cellphone-Phone-PDA-GSM-RC-Remote-Control-Socket-Power-Switch-DD-/251562765119?pt=Home_Automation_Controls_Touchscreens&hash=item3a924f2b3f
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