Isolation Transformer / Ground Loop IsolatorMCM Part #: 33-8700  |  Distributed By MCM Part #: 4170

Isolation Transformer / Ground Loop Isolator 4.8 stars from 3 reviews.

Login to rate or review this product

Ground Loop Isolator
Transformer based isolator provides a high impedance isolation from AC power related ground current, preventing hum or buzz in sound systems and hum bars that appear on video monitors. Bi-directional device provides a transparent path for CATV and Antenna signals and is fully compatible with high speed internet and interactive digital cable boxes.

Product Reviews

• "Fixed DirecTV ground loop noise" by DSmart on 4/23/2012
  Isolation Transformer / Ground Loop Isolator
  Overall: 4.5 out of 5

  Value:

  Quality:

  The separate grounds to power receptacle(s) and the DTV antenna creates a ground loop. This can create hum in a grounded amplifier or sub woofer. The isolator fixed the ground loop when installed between the SWM power supply and the AV receiver*. The problem was not the SWM power supply as the problem was still there if the power supply was unplugged. If you have hum, disconnect the SWM-->receiver coax. If the hum stops, the problem is a ground loop. Note that if your DTV antenna is not grounded, there will not be a ground loop of this nature. * If you install between the SWM power supply and the antenna, there will not be any reception. WARNING: Do not use ground loop isolators for cable TV [CATV]! They do not have the bandwidth required and your DTV will malfunction. This MCM isolator seems to be the only product that has the required bandwidth.
• "Works as advertised" by fredomax on 12/29/2011
  Isolation Transformer / Ground Loop Isolator
  Overall: 5 out of 5

  Value:

  Quality:

  I have an FM roof antenna connected to several radios and tuners throughout the house via RG-6 cable. One is a vintage 1970's receiver with a phono section which exhibited audible hum. I tracked the problem down to the FM antenna lead. When I disconnected it, the hum in the phono section went away. I ordered two of these Ground Loop Isolators. I connected one to the 300 ohm to 75 ohm FM antenna adapter on the back of the receiver and it solved the problem. I also have a stereo radio with an auxiliary output that shares double duty as an FM radio and computer speakers. The computer is hooked up to a cable tv modem. I was experiencing significant hum when I switched to the radio's auxiliary output. I added a Ground Loop Isolator there as well, and now the hum is gone. Bottom line is that this product significantly squelched hum in both of the applications in which I tried it.
• "The Boater" by ronald.koenecke on 4/28/2011
  Isolation Transformer / Ground Loop Isolator
  Overall: 5 out of 5

  Value:

  Quality:

  Hi Guy's, While working on my on-board antenna system I noticed a ground fault voltage potential. This condition also reduced the quality of the shore based cable TV system channels. I also have an Galvanic Isolator (Ground Loop Isolator), connected to my shore power ground. I added the item below for the same reasons, to save my zinc's. Shore based cable TV system Isolation Transformer / Ground Loop Isolator http://www.mcmelectronics.com/product/33-8700 This product solved the problem. Happy Channels
• Rate It!
  Login Here to rate and review this product.

Associated Products

	27-405 - Female RCA to male BNC Female RCA to male BNC.	In Stock $1.16	Buy Now
	33-10400 - In-line Coaxial Surge/Lightning Supressor (5-2400Mhz bandwidth) Protect your cable modem, tuner, converter, decoder, and satellite receiver from power surges and spikes caused by lightning strikes. Plugs directly into coax line.	In Stock $7.20	Buy Now
	33-460 - Knurled F-81 Female Splice Knurled F-81 female splice Nut and washer included. Minimum quantity of ten.	In Stock $0.64	Buy Now

Others Also Bought

	28-8461 - 6 Ft 3 Outlet Household Extension Cord - Brown 16GA 6' AC EXTENSION CORD BRN 13A 2 CONDUCTOR Woods Three Outlet Household Extension Cords, Length: 6 feet, Color: Brown, Size: 16 gauge, Number of Conductors: 2, Voltage Rating: 125 V, Current Rating: 13 A, Includes: Safety covers for unused outle...	In Stock $2.90	Buy Now
	293-320 - Procell "AAA" Alkaline Battery 72 Count Bulk Pack The #1 rated batteries by AV and broadcast professionals. ProCell batteries can last up to seven years. These batteries can operate in temperatures of —20°C~54°C. They can last up to ten times longer than super heavy duty zinc carbon batteries in power demanding a...	In Stock $30.97	Buy Now
	33-10400 - In-line Coaxial Surge/Lightning Supressor (5-2400Mhz bandwidth) Protect your cable modem, tuner, converter, decoder, and satellite receiver from power surges and spikes caused by lightning strikes. Plugs directly into coax line.	In Stock $7.20	Buy Now

Keywords Associated with This Product

• Isolation
• Transformer
• Ground
• Loop
• Isolator
• Distributed By MCM