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anselmo pinto
Active Contributor

Join Date: Mar 2011
Posts: 18

Radio Transmitter

03/14/2011 3:45 PM

Hello

Where can I find a radio transmitter for distances up to 200 meters to activate 10 different relays??

Can I activate these relays also via internet?

How to do?
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dvmdsc
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United States - Member - New Member

Join Date: Mar 2010
Location: In the pool because it is too hot.
Posts: 3054
Good Answers: 141
#1

Re: Radio Transmitter

03/14/2011 10:06 PM

ebay - from china - have 2 sets myself - works on 12 VDC and transmitter with 2 AA paid $38 for each - not to activate through internet. For that purpose you can look for home automation with separate addresses.

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anselmo pinto
Active Contributor

Join Date: Mar 2011
Posts: 18
#10
In reply to #1

Re: Radio Transmitter

03/16/2011 5:31 PM

thank you

great help

anselmo
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Noudge79
Guru

Join Date: Feb 2011
Posts: 1119
Good Answers: 11
#2

Re: Radio Transmitter

03/15/2011 8:44 AM

Wireless you mean and with ethernet capability? Try this out. Wifi I/O

Just add up wifi booster Something like this signal Wifi booster

How to do is, read the manuals. Get a technician if you can't handle it, otherwise be open-hearted to gamble the money for the sake of curiosity and adventure.

It's still learning, anyway if its yours, it's fine alright.

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mrclean
Power-User

Join Date: Jun 2010
Location: Pacific, Mo.
Posts: 250
Good Answers: 5
#3

Re: Radio Transmitter

03/15/2011 11:24 AM

I hope this isn't for some kind of terrorist activity, like bomb detonation. Need to be carefull with these kinds of questions and answers.

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anselmo pinto
Active Contributor

Join Date: Mar 2011
Posts: 18
#6
In reply to #3

Re: Radio Transmitter

03/15/2011 7:10 PM

As you can see is not for a bomb but 10 bombs

Don´t worry I`am sure CIA are already take your advise seriously and send same SPECIALS SECRETS AGENTS to my home.

But as I`m a junior terrorist they will give me a discount.

I was thinghing to aske ...how to build a bomb, but now that they know me I lost my chance to be a senior terrorist.....

Sorry but I thing you are very disturbed.........!!!!!!!
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mrclean
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Join Date: Jun 2010
Location: Pacific, Mo.
Posts: 250
Good Answers: 5
#8
In reply to #6

Re: Radio Transmitter

03/16/2011 7:45 AM

Yes I am disturbed that a lot of questions and answers for terrorist occur on all kinds of message boards maybe even this one who knows I hope not. Every since 911 I myself use a little more caution.

I didn't mean to implement that you were building a bomb, I just wanted to make everyone think twice before blurting out information about radio transmitters to just anyone. Your question about them wasn't very clear on what you wanted them for and yet everyone was starting to throw out answers.

Sorry if this offended you, that wasn't my intension at all, and how does my concern about the safety of my country and fellow man make me disturbed? I just think we need to be more cautious in these days and times with all the terrorist activity going on in this world.

Again I didn't mean to offend you.

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Anonymous Poster #1
#12
In reply to #8

Re: Radio Transmitter

03/27/2011 7:11 PM

This attitude to each other my friend is exactly their goal. Don't do them this favour. S.M.
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anselmo pinto
Active Contributor

Join Date: Mar 2011
Posts: 18
#14
In reply to #12

Re: Radio Transmitter

03/27/2011 7:39 PM

Thank you for your comment

I must agree with you . It was my fault!
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anselmo pinto
Active Contributor

Join Date: Mar 2011
Posts: 18
#13
In reply to #8

Re: Radio Transmitter

03/27/2011 7:35 PM

I`m very sorry for having forget in my reply what your country sufered with terrorist

It was stupid from me not think about why you made that comment.

Believe that I understand now your reaction! I´m sorry.

I want that radio tranmiter for put ON OFF same light during the night on my farm.

If you come to PORTUGAL please contact and I will be pleased to receive you.
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Dave Simpson
Commentator

Join Date: Jan 2011
Posts: 61
#4

Re: Radio Transmitter

03/15/2011 12:51 PM

Depends what you want to do and how much you can spend. Try a model aeroplane shop. Multi-channel, linear output effect. Normally have to use a wireless Laptop.
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Dave Simpson
Commentator

Join Date: Jan 2011
Posts: 61
#5
In reply to #4

Re: Radio Transmitter

03/15/2011 12:57 PM

You may need some interfacing, or mybe they will have digital outputs. If it's for Industrial use, www.ni.com
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chrisg288
Guru
Engineering Fields - Electromechanical Engineering - Technical Services Manager Canada - Member - Army brat Popular Science - Cosmology - What is Time and what is Energy? Technical Fields - Architecture - Draftsperson Hobbies - RC Aircraft - New Member

Join Date: Sep 2006
Location: Clive, Alberta, Canada
Posts: 5916
Good Answers: 204
#7

Re: Radio Transmitter

03/15/2011 10:47 PM

you can find a radio transmitter at your local hobby shop for RC models.

I dunno about the internet.

Chris
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tdesmit
Guru
Engineering Fields - Electrical Engineering - New Member United States - Member - New Member

Join Date: Apr 2007
Location: Wichita, Kansas USA
Posts: 653
Good Answers: 30
#9

Re: Radio Transmitter

03/16/2011 8:47 AM

How about using Wi-Fi Ethernet for the wireless link, and then Ethernet to digital I/O modules for your control signals. If you use the right I/O modules, you could also monitor the status of the relays for real-time feedback of your control. Of course, you would need at least one computer involved to run the software to conrtrol the I/O modules.

Tom D.
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still ere
Commentator

Join Date: Feb 2011
Posts: 70
Good Answers: 1
#11

Re: Radio Transmitter

03/17/2011 3:26 AM

try the mains control transmitters that turn appliance on and off

can also be used to blow things up
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Anonymous Poster #2
#15

Re: Radio Transmitter

05/10/2011 6:08 AM

zigbee

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Users who posted comments:

Anonymous Poster (2); anselmo pinto (4); chrisg288 (1); Dave Simpson (2); dvmdsc (1); mrclean (2); Noudge79 (1); still ere (1); tdesmit (1)

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