quiet roit
New Member
Wiring Pain Field Generator att:Audioguru
Again, I require knowledge from the electronic gods. Past threads have dismissed the effectiveness of small commercial devices used to stop dog barking. I have found this to be true, even the expensive, high-end pain field generator from Information Unlimited failed to quiet my neighbor's dogs.
Experienced Forum member Audioguru has commented that the piezo tweeters used for these devices are too wimpy & cheap to be effective. His expertise & depth of knowledge led me to purchase two 300-watt ultrasonic transducers. They have a 4" round metal body with frequency range of 10kHz to 25kHz, (4-8 OHM impedance), (sensitivity: 99db), (30 oz. magnet structure), they also have a 3.3uF, 100v capacitor soldered on the postive terminal. Powering the transducers is a 240-WATT Extended Range Power Amplifier, (frequency response: 20kHz to 30kHz), (output power: 2x120W max), (2x40W RMS), (output impedance: 4 Ohms), (power supply: 12V DC - 11-16V). Providing frequency source for the Power Amp is a microchip programmed with an ultrasonic frequency sweep. Output is a low duty cycle square wave, which continuously changes frequency over several thousand hertz. The sweep frequency generator IC came assembled on a circuit board with assorted resistors & capacitors. The circuit board is powered by 12 volts & has a RCA cord plugged into a Y splitter that plugs into the Power Amp. 12 volt power to the circuit board & Power Amp is supplied by a regulated DC power supply, (input voltage: 105 - 125VAC, 115V normal), (input line frequency; 60hZ), (output voltage: 13.8VDC+0.3V), (output current: 10 amp constant / 12 amp surge), (output ripple: 150mV RMS). I have hooked this up as described & it functions as desired. Now I want to place the transducers 200 feet from everything else. The 12-Volt Power Supply, the Circuit Board, & the Power Amp will all be together inside my house. Exiting the house will be 4 wires from the Power Amp outputs. These wires will run 200 feet to the transducers, which are encased, & hanging in a tree. What size & type wire should be used to prevent power loss? Any & all advice/suggestions that will make this system a more effective dog silencer is appreciated.
Thank You,
Quiet Roit
Again, I require knowledge from the electronic gods. Past threads have dismissed the effectiveness of small commercial devices used to stop dog barking. I have found this to be true, even the expensive, high-end pain field generator from Information Unlimited failed to quiet my neighbor's dogs.
Experienced Forum member Audioguru has commented that the piezo tweeters used for these devices are too wimpy & cheap to be effective. His expertise & depth of knowledge led me to purchase two 300-watt ultrasonic transducers. They have a 4" round metal body with frequency range of 10kHz to 25kHz, (4-8 OHM impedance), (sensitivity: 99db), (30 oz. magnet structure), they also have a 3.3uF, 100v capacitor soldered on the postive terminal. Powering the transducers is a 240-WATT Extended Range Power Amplifier, (frequency response: 20kHz to 30kHz), (output power: 2x120W max), (2x40W RMS), (output impedance: 4 Ohms), (power supply: 12V DC - 11-16V). Providing frequency source for the Power Amp is a microchip programmed with an ultrasonic frequency sweep. Output is a low duty cycle square wave, which continuously changes frequency over several thousand hertz. The sweep frequency generator IC came assembled on a circuit board with assorted resistors & capacitors. The circuit board is powered by 12 volts & has a RCA cord plugged into a Y splitter that plugs into the Power Amp. 12 volt power to the circuit board & Power Amp is supplied by a regulated DC power supply, (input voltage: 105 - 125VAC, 115V normal), (input line frequency; 60hZ), (output voltage: 13.8VDC+0.3V), (output current: 10 amp constant / 12 amp surge), (output ripple: 150mV RMS). I have hooked this up as described & it functions as desired. Now I want to place the transducers 200 feet from everything else. The 12-Volt Power Supply, the Circuit Board, & the Power Amp will all be together inside my house. Exiting the house will be 4 wires from the Power Amp outputs. These wires will run 200 feet to the transducers, which are encased, & hanging in a tree. What size & type wire should be used to prevent power loss? Any & all advice/suggestions that will make this system a more effective dog silencer is appreciated.
Thank You,
Quiet Roit
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