You can "ham" it, using a DTMF controller at the site you're looking to switch on & off, feeding audio to it off of a scanner or other inexpensive radio receiver (or even a phone line), using a handheld or mobile radio at the local site to send DTMF tones.
The control board is around $100, inexpensive receiver for less than $50 on eBay, used mobile VHF radio for perhaps $100, programmed on MURS under license-free operation or (gasp) perhaps FRS (no license) or GMRS (inexpensive license). http://nhrc.net/nhrc-remote-plus/index.php I use a number of these here locally to control lighting on towers (i.e. holiday seasons), backup power tests, remote unlock/locking of shelter doors, etc. -AJ On Thu, Aug 6, 2009 at 10:09 AM, Marlon K. Schafer <[email protected]>wrote: > They also make pager based units.... Pretty cool stuff. > > Lee with Hutton should know where to get them. > marlon > > ----- Original Message ----- > From: "Jeremy Parr" <[email protected]> > To: <[email protected]>; "WISPA General List" <[email protected]> > Sent: Thursday, August 06, 2009 9:03 AM > Subject: Re: [WISPA] Wireless Relay Control (Scada?) > > > > 2009/8/6 <[email protected]>: > >> Jeremy > >> > >> What is your available commnunications mediuym between sites? > >> Sent from my Verizon Wireless BlackBerry > > > > Wireless, wireless, and wireless. There is no IP path or hardware > > connection at all. I am looking for something compact that can be > > outdoor mounted, or crammed in to an enclosure, with an RF interface > > built in. I am open to using an IP based device if I must, and adding > > on a cheap wireless ethernet bridge, but would prefer an all in one > > unit. > > > > > > > -------------------------------------------------------------------------------- > > WISPA Wants You! Join today! > > http://signup.wispa.org/ > > > -------------------------------------------------------------------------------- > > > > WISPA Wireless List: [email protected] > > > > Subscribe/Unsubscribe: > > http://lists.wispa.org/mailman/listinfo/wireless > > > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > > -------------------------------------------------------------------------------- > > WISPA Wireless List: [email protected] > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
