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From: Gregory Han (no email)
Date: Mon Jul 04 2005 - 09:55:46 EDT
I would go with the Digital Antenna instead. They seem to be the leaders in
the field at this point. I have the model that retransmits inside the boat
rather than direct connects. I just put one in before my long cruise up the
Intracoastal from GA to MD. I found it hard to evaluate the performance but
in cruising from Wrightsville to Beaufort, NC I did have a useable signal
12 miles offshore. In areas of Georgia I had a weak signal and the DA did
not seem to improve the reception at all.
I talked to the engineers at DA and tips he gave me were: In areas of a
very weak signal, place the internal antenna as close to the cell phone as
possible. I actually held the antenna in the same hand right next to the
phone and it seemed to let me make a connection when I could not without the
DA. The direct connect models of the DA give the best performance since
there are no losses due to the second, internal antenna transmission.
In other conditions with a fairly good signal, I tried switching the DA off
and on and it did not seem to make a difference. The engineers said that a
very weak signal may not be made any more useable using the DA. They also
said that the bars on the phone were only an indication of the strength of
the "control" signal and not of the actual phone signal strength.
The main function of the DA is to bring the signal inside the space using
the outside antenna. So if you were in a sealed metal box where no signal
is available, the DA would let you get a signal inside the box. Since
fiberglass does not attenuate the signal very much, the benefit of the DA is
limited to amplification from .5 watts to 3 watts and the additional height
of the antenna.
As far a separation goes, I have my outside antenna right above the pilot
house until I can do a mast mount and the inside antenna in the pilothouse
about 20 feet away. The engineers said that vertical separation is more
important than horizontal separation since the antennas radiate primarily,
perpendicular to the length of the antenna.
Yes it works with the Verizon card. The card is just a cell phone. With
Verizon be sure to do a *228 to reprogram the phone as you change areas. I
think it updates the cell tower info into the phone.
I bought mine at Defender Marine for $385 during their Miami Boat show
special.
I am sure others will chime it with different information. It would be
interesting to hear others experience with the amplifiers
Greg Han
Allegria
<<<<Has anyone had any experience with the PowerMax DA4000SBR wireless cell
phone booster. Will it work with my Verizon PC card? Will I have a
problem with
antenna separation? I only have a DeFever 41. Where is a good price for
one?>>>>>>
George
DeFever 41 Robert E. Wynns
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