Antenna testing and reviews by PhillyTalk.com
Still can't
get that weak station signal in well enough? Here is our ongoing
antenna testing and product review section. Try installing and
external (indoors or outdoors) antenna to improve reception. Even
the best radio sometimes need help due to the challenging reception
conditions specific to your local area.
While we tested
some external antennae as part of the first Radio
Testing and reviews
there was no formal product review. This article is from 2001-2002. Select a product from below and read the testing conditions with each unit to
best match your situation
External
antenna tips (Indoor installation)
The external (indoors) antenna helps a great deal for the most difficult
reception situations. You can place them near a window if you live or
work in a concrete and steel office or apartment building. If you can
find a window facing the transmitter tower that helps. More on how to
do that at a later date.
External
antenna tips (Outdoor installation)
Those who
work in windowless areas have said they ran a cable to the outside and put
up an outdoors antenna with great results. Because of the possibility
of lightning strike and injury during installation most manufacturers
recommend a licensed electrician. You can however buy yourself some adequate lightning protection kits. More on that at a later date.
Twin Coil Ferrite™ AM Antenna By C. Crane
Catalog
product description plug
Chris Twin Coil Ferrite has
developed the best compact AM antenna for a portable radio or home
stereo. It increases available daytime stations dramatically and reduces
nighttime fade out by 99%.
The Twin Coil Ferrite AM
antenna can eliminate heavy static on your radio. In laboratory tests,
the Twin Coil Ferrite antenna eliminated radio noise heavy enough to destroy all
AM signals except those from three strong local stations, allowing
listenable audio from more than a dozen stations. More from C. Crane
Our
review
Initial
feedback
(December 2001)
The Twin Coil Ferrite antenna is an amazing unit. In early testing it
demonstrated a dramatic increase in reception of any radio used. C.
Crane has come up with some new technology here and they have every right to
be proud of it. Evaluation is still in the early stages. Read
the evaluations for the situation that best matches yours. In the
picture above 2 pieces are not shown.
(January 2002 - Scott)
Early verdict - works great with lesser radios. If you already have a
Select-A-Tenna and a CCRadio or a Superradio II, and you can null out atmospheric noise with them, you don't necessarily
need the Twin Coil Ferrite. If you have a less capable AM receiver, or an acute noise problem, it can help.
July 2004:
One listener wrote me about how he likes using this product while
camping. It can run off a 9 volt battery. Up in the mountains
the reception in certain areas is challenging and now he can keep in touch
with his favorite shows ... much to the chagrin of his wife.
It
works like this ...
There are clear directions in the manual but if you are not familiar with
this type of unit you must be wondering what the heck it does. First
the rectangular "reception module" is placed away from the radio
in a spot you think is best. Then a cable runs from that to the square
tuner box. Then a cable runs from that box to the radio. If you
have external antenna jacks on the radio you can use those. If there
are no jacks they provide a small ferrite bar to plug the cable into, this
bar gets placed onto the radio itself. The tuner box plugs into the
wall with a 6V transformer or uses a 9 volt battery. You turn on the
tuner with the inner knob then use the outer knob for coarse tuning, you
will notice a spot of signal improvement or just a change in pitch.
You then use the inner knob to fine tune the signal in. Then you go
back to the pick up unit and move that around until you find a good
spot. Normally this spot will work for every station after that.
You will have to use the tuning box to fine tune each distant station.
For distant signals this setup works great. If you are far from a
window or outside wall you can purchase an extension cable built especially
for this unit. You can pick up an RCA cable to extend the one wire to
your radio if you need to but get the extension later from C. Crane for the
pick up unit if you find out that you need to run that at a distance.
I was able to finagle the cables in such a way to move the tuner further
away with the cables provided but the tuner was out of reach, fine for most
situations.
To
sum it up ...
Apparently this unit picks up the signal, tunes in with the box then pumps
the filtered signal out to your radio. By getting the pick up away
from your radio it eliminates the interference that some digital home
stereos generate. You can take a decent radio and turn it into a DX
machine but you are then left wondering how well would this unit perform on a good
radio? The product evaluations will try to determine that.
Product evaluations
to date:
#1
Conditions
Inside a 2 story brick building, first floor, small window 20 feet away
facing south-east, lots of indoor fluorescent lighting and interior electric
motor interference. Outside, similar buildings nearby, relatively old
power pole transformers. Normal indoor reception at this location is
decent.
Results
Installed Twin Coil Ferrite antenna on a GE 3 radio using antenna screws on the back
of the unit. Place rectangular reception module five feet closer to the
window (now still 15 feet away). Selected weak signal at night from a
50K station to the west about 1,500 miles away that is normally full of
static to the point of being unlistenable. The Twin Coil Ferrite antenna pulled
in the skywave from the station quite well and while there was some static
it was below the point of being annoying. Next tried several New York
AM signals to the north that was borderline in reception quality. This
time the stations came in loud and clear. With the unit still on a
local strong AM signal was selected. The unit showed no interference
on the local signal meaning you don't have to constantly turn it on and off
when switching stations. You may have to fine tune it for distant
stations in widely different directions but usually people interested in
this type of product aren't flipping the dial constantly.
Select-A-Tenna
Regular Model
Catalog
product description plug
For daytime
listening, the Select-A-Tenna effectively doubles the normal listening
range of a radio station anywhere in the country, up to 300 miles away.
The Select-A-Tenna will reduce night time fade-out by approximately 90%.
More Info
from the C. Crane website
Our
review
A very popular antenna with
radio enthusiasts. Early testing and feedback is positive.
Specific testing situations are now underway and will be included at a later
date. We welcome your own experiences.
It works by placing the unit
next to, behind, or even on top of you radio and tuning the knob until you
notice the signal getting pulled in dramatically better. No wires but
sometimes cumbersome.
August 2002:
While a popular item this antenna doesn't compare to the Twin Coil Ferrite
listed
above. In some specific areas it is a fine performer, in other
situations it helps little. For this product word of mouth from local
friends who have the same reception problems as yourself is vital. It
very well may be that you live in an area where this model works
great.
July 2004:
After using this for a couple years I find that it's good for using on a
radio you don't move around and having one station set all the time.
The key is where you live and where the station that you want broadcasts
from. For example here in Philly it works fine pulling in a New York
station, Reading and point south too. Given the return policy I wouldn't
hesitate recommending it.
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