Wilson Cellular
Announces a New Dual Band
Wireless Mobile Amplifier with Smart Technology (TM)
Wilson Cellular's Dual Band Wireless Mobile
Amplifiers allow the benefit
of an external antenna and up to 3 Watt amplifier without
a physical connection to the cell phone.
What are
the benefits of the Wilson Cellular Wireless Mobile Amplifiers
offered by wpsantennas.com?
The Wilson Cellular
Wireless Amplifiers (mobile cell phone repeaters) allow one or more users to benefit from an
outside antenna and amplifier without a physical connection to the
cell phone. This eliminates the need for external antenna connection
on the cell phone.
Wireless
vs Direct Connection?
The
Wilson Cellular
Wireless Amplifiers (Mobile Cell Phone Repeaters) and
Direct Connect
Amplifiers perform comparably in urban situations. Both amplifiers transmit up to 3
Watts of output power to the cell site and receive a signal as weak
as -110dBm. For rural applications, the
direct connect
(inline) cell phone amplifier will perform better and is
recommended.
Does the
Wilson Cellular Wireless Mobile Amplifier affect a carrier's cell
site?
Wilson Cellular's Wireless
Mobile Amplifiers (mobile cell phone repeaters) have Smart Technology (TM) that automatically
adjusts the power based upon the cell site's requirements. This
patent pending technology ensures that the power to the cell site is
within the carrier's specifications.
Tests by WTS Laboratories
(WTS Laboratories performs cell phone certification tests for Telus
Mobility, Nokia, Motorola, Samsung and others) show that the Wilson
Cellular Wireless Amplifiers pass important TIA/EIA-98-E tests.
These are standard tests used by the cellular industry for
evaluation CDMA cell phones and ensure compatibility of cell phones
with cell sites. Amplifiers that are added to the systems should not
harm the cell sites. They should improve cell phone performance
while remaining "transparent" with their presence not affecting the
cell sites' operation.
Wilson
Cellular Wireless Mobile Amplifiers offered by wpsantennas.com have
Patent Pending Smart Technology (TM) that allow the amplifier to be
"transparent" on the carrier's system while improving coverage.
Tests show Wilson Cellular's Dual
Band Wireless
Mobile Amplifier Outperforms Digital Antenna (r)
and RF Engineered Solutions (r) (RES)/Richardson Electronics
Tests by WTS Laboratories show the Wilson
Cellular Dual
Band Wireless Mobile Amplifier
passed the significant TIA/EIA-98-E transmit and receive tests while
Digital
Antenna and RES failed.
TIA/EIA-98-E
Test Results
3.5.1 -
Receiver Sensitivity
Receiver Sensitivity
measures the lowest amount of receive signal that allows
communication based on a frame error rate that does not exceed TIA/EIA-98-E
standards. From any given amplifier manufacturer, two amplifiers
(used in conjunction with a cell phone) were tested. On each
frequency tested, 3 tests were made using different test parameters
(e.g. data rates). The sensitivity for each manufacturer's amplifier
is calculated separately for each frequency band and is the average
of all the measurements made on all of the amplifiers in that band.
A more sensitive amplifier receiver can detect a weaker signal which
allows the cell site to communicate with the cell phone at a greater
distance.
|
Manufacturer |
Model # |
800MHz |
1900MHz |
| Wilson
Cellular |
801201 |
-110.47dBm |
-111.04dBm |
| Digital
Antenna |
DA4000MR |
-107.08dBm |
-106.56dBm |
| RES |
B800-1900-1 |
-104.60dBm |
-106.71dBm |
For
example, the
Wilson Cellular Dual-Band Wireless Mobile Amplifier has a
receive sensitivity of -111.04dBm in the 1900MHz band and the
Digital Antenna Amplifier (DA4000MR,) has a sensitivity of
-106.56dBm. The Wilson Cellular amplifier can receive a signal that
is 4.48dBm weaker than the Digital Antenna Amplifier (DA4000MR). (NOTE: From any given manufacturer, two amplifiers were
tested.) This means that with the Wilson Cellular Amplifier you can
receive a signal from the cell site up to 67% farther than with
Digital Antenna's amplifier (DA4000MR). For the distance
calculations, a free space model, line of site, was used.
Test show
that on the 800MHz and 1900MHz bands, the Digital Antenna and RES
amplifier's senstivity is less than the test cell phone alone. The
cell phone used for the WTS tests has a sensitivity of -107.97dBm on
800Mhz and -107.81 on 1900MHz.
4.4.5 -
Maximum RF Output Power
In order for a CDMA system
to operate properly, all the cell phones that communication through a
cell site must have the same signal strength at the cell site's
receiver. A cell phone that has excessive power is likely to overload
the cell site and cause other phones to lose communications. If a cell
phone's maximum power level is not high enough, it will be beneath the
receiving threshold of the cell site and will not be able to
communicate.
|
Manufacturer |
Model # |
800MHz |
1900MHz |
| Wilson
Cellular |
801201 |
PASSED |
PASSED |
| Digital
Antenna |
DA4000MR |
FAILED |
PASSED |
| RES |
B800-1900-1 |
FAILED |
FAILED |
The RES
amplifiers (two tested) failed the 4.4.5 tests due to low power
output. In most cases, the RES amplifiers had less power output than
the test cell phone.
4.4.6 -
Minimum
Controlled Output Power
While
connecting to a cell site (open loop) or after a connection (closed
loop), a cell phone is required to vary its power. The TIA/EIA-98-E
test simulates the conditions where minimum power is required and
measures the actual output power. If power exceeds the required
level, a cell phone may overload a cell site and prevent others from
communicating.
|
Manufacturer |
Model # |
800MHz |
1900MHz |
| Wilson
Cellular |
801201 |
PASSED |
PASSED |
| Digital
Antenna |
DA4000MR |
FAILED |
PASSED |
| RES |
B800-1900-1 |
FAILED |
FAILED |
For
example, Digital Antenna's amplifiers (DA4000MR) on 800MHz
had an average minimum output power 14dB higher than the level
allowed by TIA/EIA-98-E which could cause serious interference with
other cell phone users on the same channel.
NOTES:
-
WTS
Laboratories, the testing facility, performs cell phone
certification tests for Telus Mobility, Nokia, Motorola, Samsung
and others.
-
From
any given manufacturer, two amplifiers were tested.
|