Description
The Jensen Transformers VRD-1FF is a capacitive-based isolator that provides a high impedance barrier to AC power-related ground currents.
It can prevent hum or buzz in sound systems as well as hum bars in
video systems, while providing a transparent path for radio frequency video and
cable modem signals.
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Improves audio/video quality by reducing 60 Hz
ground currents
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2 MHz to 1300 MHz bandwidth spans VHF/FM/UHF/CATV
spectrum
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Low VSWR helps prevent digital cable channel
degradation
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Capacitive based design minimizes broadcast
channel interference
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Meets FCC Part 76 Regulations for CATV systems
The VRD-1FF is made in the USA, is backed by the manufacturer's comprehensive
one year warranty, and has a remarkable 20 year warranty on the transformer
device itself. MSRP is $59.95.
Ground Loops?
(or why the best planned systems sometimes
look and sound bad)
It is a subject that is seldom discussed in manufacturers
publications, or even in magazines of the trade, but ground loops can happen
even in the most carefully planned A/V system. When ground loops happen in
a video system,
the result is unwanted hum or video hum bars.
In cable TV systems, the power supply for the cable system amplifiers are
powered by a different source than the equipment that is used to enjoy the
programming. The National Electrical Code requires the cable system to be
bonded to the power service entrance ground, but in actual practice, this is not
always the case. Even when the code is properly observed, there are other
factors that can cause a difference in ground potential. It can be because one of the circuits is
loaded more heavily than the other, or because one run is longer than the other,
or any number of other reasons that are beyond the scope of this article.
The result of this difference in ground potential is commonly referred to as
a ground loop.
The Solution
The Jensen Transformers VRD-1FF is elegant in its simplicity.
Just insert it anywhere in the RF line between the cable TV jack and your
equipment.
Immediately, the effects of the ground loop become
a non-issue. Problem solved. There are not too many things that one
can install in an A/V system that can provide so much improvement with so little
effort.
Don't Forget the Cables!
Good cables are very important in the fight against hum and noise.
You will need at least one short patch cable in order to insert the VRD-1FF into
your signal path, and you may want to consider upgrading your existing cable(s) as
well. The VRD-1FF does not include any cables, but if you need them, we
have some very high-performance RF cables available. Please
click here to
see them!
Why Cable Solutions?
In-stock items are ready for immediate shipment, and no one works
harder than we do to get your order shipped out to you fast! On business
days, orders that are funded by noon will ship the same day. Orders funded
on weekends or holidays will ship the next business day.
Customer service is our first priority. We do our best to help you find
the best solutions for your particular application. We're enthusiasts too,
so we know what it's like to wait for cables and accessories that are needed to
hook up new gear. We also know how important it is to be able to get a
response when you need help, so you'll often find us working long hours in an
effort to get you the answers that you need.
Design excellence, high quality materials, meticulous workmanship, and
superior service...put it all together and you get a superior product.
Don't get stuck with bad advice, poor service, slow shipment or an inferior
product. If you want the best, here it is.
Miscellaneous
Please click here to read our policies
and disclaimer. Thanks for reading all of this!
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SKU Number JT VRD-1FF
MSRP: $59.95
Our Price: $49.95
Click on any of the pictures below for a closer view!
Jensen Transformers VRD-1FF Cable TV Ground Isolator
The VRD-1FF comes packaged in the small box shown at the left of this photo, and
an instruction manual is included as well.
This drawing illustrates the small size of the device.
Here are the specs.
The VRD-1FF does not include any cables. If you need cables, we have
high-performance RF cables like the one pictured here, available separately.
If you are interested, please click here to see our RF cable offerings. |
