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Jensen Transformers Iso-Max VRD-1FF - Single-Channel CATV Ground Isolator (F Connectors)

BH #JEVRD1FF • MFR #VRD-1FF
11 reviews
Jensen Transformers
Jensen Transformers Iso-Max VRD-1FF - Single-Channel CATV Ground Isolator (F Connectors)
Key Features
  • For Digital Cable/CATV/VHF/UHF/MATV
  • Single-Channel, Ground-Loop Isolator
  • Eliminates Hum Bars in Video Signal
  • Prevents Hum and Buzz in Audio Signal
The single-channel, Jensen Transformers Iso-Max VRD-1FF is a passive, high-performance capacitive isolator, which prevents hum or buzz problems in either the audio or video portion of a professional A/V installation. By breaking 60-cycle ground loops, it provides a transparent path for video and cable modem signals, in digital cable/CATV/VHF/UHF/MATV systems.
In Stock
$74.99

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Jensen Transformers Iso-Max Overview

The single-channel, Jensen Transformers Iso-Max VRD-1FF is a passive, high-performance capacitive isolator, which prevents hum or buzz problems in either the audio or video portion of a professional A/V installation. By breaking 60-cycle ground loops, it provides a transparent path for video and cable modem signals, in digital cable/CATV/VHF/UHF/MATV systems.

The VRD-1FF combines gold-plated F connectors with a proprietary RF design to ensure true 75-Ohm compatibility, for optimized signal integrity, and minimized reflections and ghosting. This precise circuitry delivers a linear response from 2 MHz to over 1300 MHz, which helps eliminate interruptions of the two-way communication between the cable provider and their set-top box, and reduce frequency dips that cause channels to drop in digital cable.

Note:
The VRD-1FF is not suitable for use with RG11 cable or as an isolator for satellite dish systems
  • Single-channel, 75-Ohm passive isolator for digital cable/CATV/VHF/UHF/MATV – designed to break ground loops
  • Prevents hum/buzz and hum bars in either the audio or video signal
  • Provides transparent path for video and cable modem signals
  • Linear 2 MHz to 1300 MHz bandwidth
  • Capacitive-based design minimizes broadcast channel interference
  • F-type connectors with gold-plated contacts ensure true 75-Ohm compatibility, for optimal signal integrity, and minimized reflections or ghosting
  • Plug-and-play, easy to use, no power required
  • Meets FCC Part 76 Regulations for CATV systems
UPC: 676101041473

Jensen Transformers Iso-Max Specs

TypePassive, capacitive-based isolator, 75 Ohms
ChannelsSingle
ConnectorsNickel-plated, brass F-type with gold-plated contacts

For use with RG59 or RG6 type cable
Insertion Loss5 MHz, HP 3577A analyzer
Typical: -0.19 dB

50 MHz, HP 3577A analyzer
Typical: -0.01 dB
Maximum: -0.1 dB
BandwidthLF -3 dB re 100 MHz, HP 3577A analyzer
Typical: 1 MHz
Maximum: 1.2 MHz

HF -3 dB re 100 MHz, HP 8711A analyzer
Minimum: 1000 MHz
Typical: > 1300 MHz
VSWR50 MHz to 866 MHz, HP 8711A analyzer (input or output port)
Typical: 1.08
Maximum: 1.2
Voltage DifferenceMaximum: 200 VDC
Externally Radiated FieldRef. level = 1.414 mVrms (at 3 m)

Frequency = 50 MHz: 1.1 uV / m, typical
Frequency = 500 MHz: 4.8 uV / m, typical
Frequency = 1 GHz: 6.3 uV / m, typical
ComplianceMargin below FCC part 76 limits, ref. level = 1.414 mVrms

Frequency = 50 MHz: 25.6 dB, typical
Frequency = 500 MHz: 12.5 dB, typical
Frequency = 1 GHz: 10.1 dB, typical

(Meets FCC Part 76 regulations for CATV systems)
Cable LengthOutput
Typical: 6.5' / 2.0 m
Maximum: 26.2' / 8.0 m
Isolation ImpedanceOutput shield to input shield, 60 Hz
Minimum: 1 MOhm
Typical: 1.3 MOhms
CapacitanceOutput shield to input shield, 1 kHz
Typical: 2000 pF
DimensionsLength: 2.52" / 64.00 mm
Diameter: 0.66" / 16.76 mm
Packaging Info
Package Weight0.065 lb
Box Dimensions (LxWxH)3.2 x 1.15 x 1.15"

Jensen Transformers Iso-Max Reviews

Works Great!

By Steven
Rated 5 out of 5
Date: 2020-11-24

I was getting hum from my REL T9 subwoofer. REL customer service helped me track down the cause to electrical noise originating from my coax Xfinity cable connection and flowing through my cable box and my AV receiver and out to my subwoofer. After adding this ground isolator the hum immediately disappeared.

Worth it

By Carl
Rated 5 out of 5
Date: 2020-06-15

Expensive but knocked out the hum coming from my cable.

It worked perfectly to eliminate ground loop hum

By John
Rated 5 out of 5
Date: 2020-06-01

This is the second VRD-1FF I've bought. The first one lasted 9 years, but this spring our house was hit by lightning. The old VRD-1FF started adding 6dB signal loss, so I figured the lightning hurt it. Just like the original, the new VRD-1FF has eliminated the ground loop hum that was on our incoming CATV Cable

Great service and product

By Mark
Rated 5 out of 5
Date: 2020-05-31

Had a 60 cycle hum in my audio/video system and narrowed It down to the Blu-Ray player and cable box were causing a ground loop. Installed the Jensen ISO-Max VRD-1FF on the cable line before the box and it worked - no more hum. Much thanks to Jensen and B&H.

worked perfectly

By Charles
Rated 5 out of 5
Date: 2020-05-14

This seems like a pricey little widget, but it worked perfectly to eliminate a heavy hum in my new subwoofer setup (Dayton rackmount subwoofer amp, Dayton Reference 10 subwoofer) in my home theater. BTW this was at the suggestion of the documentation for the subwoofer driver.

Jensen Transformers Iso-Max VRD-1FF

By Minh
Rated 5 out of 5
Date: 2020-05-10

Great device, bought to fix a ground loop hum between my catv coax coming into the house and my other audio-video equipment. So now no more hum and the video reception quality did not degrade.

Perfect for Denon & Comcast\Xfinity + subwoofer

By Hiren
Rated 5 out of 5
Date: 2020-10-12

I have Denon & Atmos speaker setup, cablebox from Comcast & a subwoofer. The cheap $20 isolator available online didn't do a good job since comcast signal was degraded per their tech. He said that it introduced some noise feed back to their other customers. Not sure how much of that is true but he did say that if I were to get an isolator get something over 1000mhz and this one fit the spec. I installed it and so far all is great. No issues with performance but the box label instructed to read instruction which were not in the box. So I went to their website and read it.

Perfect for Denon & Comcast\Xfinity + subwoofer

By Hiren
Rated 5 out of 5
Date: 2020-10-12

I have Denon & Atmos speaker setup, cablebox from Comcast & a subwoofer. The cheap $20 isolator available online didn't do a good job since comcast signal was degraded per their tech. He said that it introduced some noise feed back to their other customers. Not sure how much of that is true but he did say that if I were to get an isolator get something over 1000mhz and this one fit the spec. I installed it and so far all is great. No issues.

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