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Ramsey Electronics, LLC |
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RF TIGHT TESTING... MADE EASY!
Wired & Wireless Device Testing!
Perfect for 802.11a, b, g, Wireless LAN, WiFi,
WiMax, Cellular, Paging, PCS, GPS, GSM 3G, RFID, Zigbee, Bluetooth®, Blade Servers, Cards, WAP’s, Production Testing,
Quality Assurance and other Wireless Devices Testing or just as a RF Shielded Enclosure
Wide Variety Of I/O Options!
Great Isolation Up To 18GHZ!
Models To Fit Any Application!
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All STE Standard Models are Temperature
Rated from - 40° C to + 90° C
(- 40° F to + 194° F)
(-55° to +100° C Avalable)
ALL STE Models are "In the Field"
Serviceable
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CUSTOM ORDERS...ARE STANDARD!
We realize that the connectors, options and
actual test procedures of one customer are
entirely different from that of another. In
fact over the past 5 years we have never had
an identical connector and option
configuration between customers! We made it
easy with our precision machined I/O output
panels to get standard delivery of your
"custom configured" enclosure! It goes
beyond connectors and options. If you need
a special configuration, a different size or
door configuration, talk to us! The entire
line of STE enclosures has evolved from just
that, the needs of people like you!
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THE RF SCREEN
ROOM ON YOUR BENCH!
In 1997 Ramsey took the technician out of the large expensive
shielded screen room and put his hands and eyes into a portable
bench top RF Shielded Test Enclosure. With thousands placed in
service worldwide the patented STE technology became the standard
for efficient and cost effective RF isolation testing. That legacy
has continued with a wide variety of STE’s to suit every RF test
application, and size requirements you have today. Our exclusive
double lip gasket technology assures an RF tight seal each and every
time. Steady-hold hinges maintain the opening at any location and
prevent gasket compression due to prolonged closure pressure when
not in use. Our STE2800 and STE3800 STE’s feature our RTF Radiating
Test Fixture with a built-in broadband antenna to properly test
wireless telephones with guaranteed repeatability. All of the STE’s
feature a wide variety of available I/O connection and interface
options and RF filtered feedthroughs.
All available to fit your
custom requirements with the pricing and delivery of a stock unit!
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STE2200
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STE2200
Base Model Price $475.00
Microwave RF Shielded Test
Box
RF Isolation: 20 MHz to
10 GHz
4½" H x 7¼" W x 9¾" D
3¼” H x 6” W x 8½” D
(Nom. Inside Dimensions)
24 dB Attenuation Absorber


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STE2200
Microwave RF Shielded Test Fixture
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Interference Free Testing
FOR YOUR 802.11 EQUIPMENT!
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Same quality design as its
patented big brother - the
STE3000 Test Enclosure
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Designed for 2.4 GHz and 5.6
GHz wireless services
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Great isolation beyond 8
GHz!
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Heavy duty construction
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Portable and easy to use

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THE "PORTABLE TEST BOX"
The STE2200 evolved from its big
brother the STE3000B. Designed specifically for TDMA, CDMA,
AMPS, PCS, GSM and other small communication devices, it is
constructed to the same precision-machined tolerances as our
patented STE3000B to maintain an exceptionally well shielded
environment. Heavy duty, rugged .090 and .125 aluminum is
used throughout and our double lip double high performance
gaskets are used at all joint locations assuring a reliable
RF tight closure. Oversized hinges and latches are used to
provide a physically tight seal every time. RF absorbent
foam lines the interior to provide a typical RF attenuation
of -90dB @ 3GHz! Perfect for 2.4GHz testing. Input/output
connections and options can be configured to match your
needs.
RF TIGHT TO 8 GHz AND BEYOND!
The STE2200 is constructed to the same
precision machined tolerances of our patented STE3000 to
maintain an exceptionally well shielded environment. Heavy
duty, rugged .090 and .125 aluminum is used throughout. Then
we went to work to assure an RF-tight seal up to 8 GHz.
First, we engineered the box with a special double lip to
provide better attenuation at higher frequencies. Then we
embedded double woven monel flexible gaskets throughout the
lip at all joint locations. In addition, all inside surfaces
are lined with microwave absorbent foam to attenuate stray
RF signals during your test. The results? Better than -75dB
attenuation at 8 GHz, and greater than 90 dB down at 2 GHz!
This is one tight RF enclosure!
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SPECIFICATIONS |
RF Isolation:
(Typical without Connectors) |
≥ 100 dB
from 20 MHz to 1 GHz
> 90 dB at
3 GHz
> 80 dB at 6 GHz
> 65 dB at 8 GHz
> 60 dB at 10 GHz > 55
dB at 18 GHz > 50 dB
at 20 GHz |
Finish: |
Mist gray
epoxy powder coat with black hardware |
RF
Reflective Foam: |
Standard RF
reflective attenuation foam provides 24 dB
attenuation. |
Connector Panel |
There is NO connector panel, I/Os are machined directly into case. |
Connectors: |
The STE2200
is provided standard without filtered input/output connectors
for your custom applications.
Filtered connector options are available in many
configurations (See
Connector & I/O Options). |
Overall
Dimensions: |
Exterior: 4.5"H x
7.2"W x 9.8"D Interior: 3.2"H x 6.0"W x 8.5"D |
Weight (shipping): |
7lbs. / 3.18kg |
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EXAMPLES OF
CUSTOMIZED STE2200 ENCLOSURES |

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STE2300
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STE2300
Base Model Price $745.00
Microwave RF Shielded Test
Box
RF Isolation: 20 MHz to
10 GHz
6.5"
(H) x 9.0" (W) x 12.0" (D) External
5.0" (H)
x 8.0" (W) x 11" (D) Internal
24 dB Attenuation Absorber

STE2300 Front
(shown with optional SMA connectors)

STE2300 Rear
(shown with optional SMA connectors)


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STE2300
Microwave RF Shielded Test Fixture
-
Interference Free Testing
FOR YOUR 802.11 EQUIPMENT!
-
Same quality design as its
patented big brother - the
STE3000 Test Enclosure
-
Designed for 2.4 GHz and 5.6
GHz wireless services
-
Great isolation beyond 8
GHz!
-
Heavy duty construction
-
Portable and easy to use
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RF TIGHT TO 8 GHz AND BEYOND!
The STE2300 is constructed to the same
precision machined tolerances of our patented STE2200 to
maintain an exceptionally well shielded environment. Heavy
duty, rugged .090 and .125 aluminum is used throughout. Then
we went to work to assure an RF-tight seal up to 8 GHz.
First, we engineered the box with a special double lip to
provide better attenuation at higher frequencies. Then we
embedded double woven monel flexible gaskets throughout the
lip at all joint locations. In addition, all inside surfaces
are lined with microwave absorbent foam to attenuate stray
RF signals during your test. The results? Better than -75dB
attenuation at 8 GHz, and greater than 90 dB down at 2 GHz!
This is one tight RF enclosure! New small size with a
standard removable I/O panel!
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SPECIFICATIONS |
RF Isolation:
(Typical without Connectors) |
≥ 100 dB
from 20 MHz to 1 GHz
> 90 dB at
3 GHz
> 80 dB at 6 GHz
> 65 dB at 8 GHz
> 60 dB at 10 GHz > 55
dB at 18 GHz > 50 dB
at 20 GHz |
Finish: |
Mist gray
epoxy powder coat with black hardware |
RF
Reflective Foam: |
Standard RF
reflective attenuation foam provides 24 dB
attenuation. |
Connector Panel |
Blank Removable panel is standard, 6.0" wide x 3.5" high, 0.090" thick,
Stainless Steel |
Connectors: |
The STE2300
is provided standard without filtered input/output connectors
for your custom applications.
Filtered connector options are available in many
configurations (See
Connector & I/O Options). |
Overall
Dimensions: |
6.5" (H) x 9.0" (W) x
12.0" (D) External, 5.0" (H) x 8.0" (W) x 11" (D) Internal |
Weight (shipping): |
(8.0 lbs) |
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STE2800
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STE2800
Base Model Price $995.00
Microwave RF Shielded Test
Box
with RTF
(Radiating Test Fixture)
RTF: 700 MHz to
8 GHz
RF Isolation: 20 MHz to
10 GHz
4½" H x 7¼" W x 9¾" D
3¼” H x 6” W x 8½” D
(Nom. Inside Dimensions Above RTF)
24 dB Attenuation Absorber




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STE2800
Microwave RF Shielded Test Fixture
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Integral RF radiating test
fixture (RTF)
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Flat Coupling Factor 700MHz -
6 GHz
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Provides absolute
repeatability testing
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Exclusive double lip RF tight
gasket
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RF absorbent foam liner
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Easy release handle
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Steady-hold hinge

Radiating Test
Fixture (RTF) with a built-in
broadband antenna to properly test
wireless telephones with guaranteed
repeatability.
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THE "PORTABLE TEST BOX"
Designed around the STE2200, we took
the task of repeatability testing of TDMA, CDMA, AMPS, PCS
and GMS phones, and other wireless communications to a new
level! For more than a decade Ramsey's RTF Radiating Test
Fixture was the standard in pager testing and alignment.
Now, designed specifically for such communications devices,
the RTF has a built-in embedded antenna to cover 800 MHz to
8 GHz.
A heavy duty universal clamp system allows any phone to be
securely clamped into position for testing. Once clamped in,
the flat coupling response, together with the high RF
Isolation factor, gives you guaranteed repeatability
testing. Phone to phone, the measurements will be exact, and
will be taken under the identical conditions. A Type-N
connector is provided standard on the STE2800 for the RTF
antenna connection. Other I/O connector options may be
ordered separately.
RF TIGHT TO 8 GHz AND BEYOND!
The STE2200 is constructed to the same
precision machined tolerances of our patented STE3000 to
maintain an exceptionally well shielded environment. Heavy
duty, rugged .090 and .125 aluminum is used throughout. Then
we went to work to assure an RF-tight seal up to 8 GHz.
First, we engineered the box with a special double lip to
provide better attenuation at higher frequencies. Then we
embedded double woven monel flexible gaskets throughout the
lip at all joint locations. In addition, all inside surfaces
are lined with microwave absorbent foam to attenuate stray
RF signals during your test. The results? Better than -75dB
attenuation at 8 GHz, and greater than 90 dB down at 2 GHz!
This is one tight RF enclosure!
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|
|
SPECIFICATIONS |
RF Isolation:
(Typical without Connectors)
|
≥ 100 dB
from 20 MHz to 1 GHz
> 90 dB at
3 GHz
> 80 dB at 6 GHz
> 65 dB at 8 GHz
> 60 dB at 10 GHz > 55
dB at 18 GHz > 50 dB
at 20 GHz |
Finish: |
Mist gray
epoxy powder coat with black hardware |
RF
Reflective Foam: |
Standard RF
reflective attenuation foam provides 24 dB
attenuation. |
Test Fixture |
Integral RF radiating
test fixture (RTF) with a built-in broadband antenna, Flat
Coupling Factor 700MHz - 6 GHz |
Connector Panel |
Two (2) SMA
Connectors are Standard,
There is no connector panel, I/Os are machined directly into case |
Connectors: |
The STE2800
is provided standard with Two (2) SMA filtered connectors,
One (1) for the RTF & One (1) for output.
Filtered connector options are available in many
configurations (See
Connector & I/O Options). |
Overall
Dimensions: |
External: 4½" H x 7¼"
W x 9¾" D (including handle) Internal: 3¼” H x 6” W
x 8½” D (Nom. Inside Dimensions Above RTF) |
Weight (shipping): |
3.5 lb/1.6kg
(6.0 lbs) |
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STE2900
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STE2900
Base Model Price $1,095.00
STE2902
(Rack Mounted)
Base Model Price $2,195.00
STE2902C
(STACKABLE 8
RACK UNIT SHOCK MOUNTED ROAD CASE)
Base Model Price $2,495.00
Blade
Server EMI Shielded Test
Enclosure
RF Isolation: 20 MHz to
10 GHz
11.0" H x 8.0" W x 14.0" D
10” H x 7” W x 13” D
(Nom. Inside Dimensions)
24 dB Attenuation Absorber
from 700 MHz to 6 GHz


STE2900 (Optional Fan)


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STE2900
Microwave RF Shielded Test Fixture
The STE2900 is
designed to be dual rack mounted in
a standard 19” EIA rack enclosure.
The 7 R/U dual enclosure is designed
for multiple simultaneous testing of
blade servers, cards, WAP’s and
other wireless devices.
RF isolation is
greater than -75dB at 6GHz and fan
forced cooling is provided for
devices under test. Like other
Ramsey STE’s, a universal I/O plate
is provided for rapid modification
and customization of customer
requirements.
The STE2900 is
available as a single enclosure, or
a dual enclosure set installed on
the matching 19” rack shelf.

STE2902

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SPECIFICATIONS |
RF Isolation:
(Typical without Connectors)
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≥ 100 dB
from 20 MHz to 1 GHz
> 90 dB at
3 GHz
> 80 dB at 6 GHz
> 65 dB at 8 GHz
> 60 dB at 10 GHz > 55
dB at 18 GHz > 50 dB
at 20 GHz |
Finish: |
Mist gray
epoxy powder coat with black hardware |
RF
Reflective Foam: |
Standard RF
reflective attenuation foam provides 24 dB
attenuation. |
Ventilation |
Two (2) vents, one in
the door and one in the rear wall. Optional 24 CFM AC or DC vent fan
available |
Connector Panel |
Blank Removable panel is standard, 6.0" wide x 3.5" high, 0.090" thick,
Stainless Steel |
Connectors: |
None standard.
Please specify connector requirements from
Connector & I/O Options |
Overall
Dimensions: |
External: 11.0" H x
8.0" W x 14.0" D (including handle) Internal:
10¼” H x 7¼” W x 13¼” D (Nom. Inside Dimensions) |
Weight (shipping): |
11.2 lbs (5.1kg) |
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STE2950
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STE2950
Base Model Price $1,195.00
WLAN &
MIMO RF Shielded Test
Box
RF Isolation: 20 MHz to
18 GHz
11.7" H x 8.325" W x 18.0" D
10.5” H x 7.125” W x 16.8” D
(Nom. Inside Dimensions)
24 dB Attenuation Absorber
from 700 MHz to 18 GHz


STE2950 (Optional Fan)


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STE2950
Microwave RF Shielded Test Fixture
The “Top Load
version of the STE2900! Also
designed for individual bench top or
dual rack mount installations, the
STE2950 makes it simple to load and
unload the device under test with
its top load access door. The dual
rack mount configuration allows
multiple installations for dense
pack environment testing.
To allow
proper cooling of the DUT each
STE2950 includes a built-in passive
60mm vent option. Optional
forced-air fans can be ordered for
additional cooling. Like other
Ramsey STE’s our universal I/O panel
on the back wall is included and
ready for your custom configuration
to meet your application. Heavy
duty, rugged .090 and .125 aluminum
is used throughout and our double
lip, high performance gaskets are
used at all joint locations assuring
a reliable RF tight closure. RF
absorbent foam lines the interior to
provide a typical RF attenuation of
-90dB @ 3GHz! If you are looking for
an off-the-shelf RF enclosure system
providing enough room to test any
size wireless device, from Cellular
phones to MIMO access points, you
can count on the STE2950 to keep the
device isolated.
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Designed for
WLAN and MIMO testing
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Top loading
swing up door for easy loading
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Dual ventilation
or fan forced cooling
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Exclusive double
lip RF tight gasket
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Universal I/O
connector interface plate
-
RF absorbent
foam liner
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Optional
security locking latch available
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SPECIFICATIONS |
RF Isolation:
(Typical without Connectors)
|
≥ 100 dB
from 20 MHz to 1 GHz
> 90 dB at
3 GHz
> 80 dB at 6 GHz
> 65 dB at 8 GHz
> 60 dB at 10 GHz > 55
dB at 18 GHz > 50 dB
at 20 GHz |
Finish: |
Mist gray
epoxy powder coat with black hardware |
RF
Reflective Foam: |
Standard RF
reflective attenuation foam provides 24 dB
attenuation. |
Ventilation |
Two (2) vents, one in
the door and one in the rear wall. Optional 24 CFM AC or DC vent fan
available |
Connector Panel |
Blank Removable panel is standard, 6.0" wide x 3.5" high, 0.090" thick,
Stainless Steel |
Connectors: |
None standard.
Please specify connector requirements from
Connector & I/O Options |
Overall
Dimensions: |
External:
11.7" H x 8.325" W x 18.0" D (including handle) Internal:
10½” H x 7⅛” W x 16.8” D (Nom. Inside Dimensions) |
Weight (shipping): |
18 lbs (8.2 kg) |
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STE2952
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STE2952
Base Model Price $2,395.00
WLAN &
MIMO Rack Mounted
RF Shielded Test
Enclosure
RF Isolation: 20 MHz to
18 GHz
11.7" H x 16.65" W x 18.0" D
10.5” H x 7.125” W x 16.8” D
(Nom. Inside Dimensions per chamber)
24 dB Attenuation Absorber
from 700 MHz to 18 GHz


STE2952 (Standard Rack Mount Slides)


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STE2952
Microwave RF Shielded Test Fixture
The “Top Load
version of the STE2900! Also
designed for individual bench top or
dual rack mount installations, the
STE2950 makes it simple to load and
unload the device under test with
its top load access door. The dual
rack mount configuration allows
multiple installations for dense
pack environment testing.
The dual
rack version STE2952 includes a
custom rack slide allowing the
entire enclosure to be pulled out
for top access.
To allow
proper cooling of the DUT each
STE2950 includes a built-in passive
60mm vent option. Optional
forced-air fans can be ordered for
additional cooling. Like other
Ramsey STE’s our universal I/O panel
on the back wall is included and
ready for your custom configuration
to meet your application. Heavy
duty, rugged .090 and .125 aluminum
is used throughout and our double
lip, high performance gaskets are
used at all joint locations assuring
a reliable RF tight closure. RF
absorbent foam lines the interior to
provide a typical RF attenuation of
-90dB @ 3GHz! If you are looking for
an off-the-shelf RF enclosure system
providing enough room to test any
size wireless device, from Cellular
phones to MIMO access points, you
can count on the STE2950 to keep the
device isolated.
The STE2952
includes dual STE2950’s mounted on a
custom 19” rack mount slide ready
for installation into your rack.
Access to the DUT is easy by the
pull-out slide giving you full
access to the hinged top mounted
shielded doors. If you don’t have
available rack space or need high
density testing in the field, our
STE2952C
has dual STE2950’s pre-mounted and
configured in a custom shock mounted
road case. Great for field service
trips.
- Dual 19” rack mount
configuration
- Easy top loading access and
doors
- Pull-out slide included for
standard racks
- Designed for WLAN and MIMO
testing
- Top loading swing up door
for easy loading
- Dual ventilation or fan
forced cooling
- Exclusive double lip RF
tight gasket
- Universal I/O connector
interface plate
- RF absorbent foam liner
- Optional security locking
latch available
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SPECIFICATIONS |
RF Isolation:
(Typical without Connectors)
|
≥ 100 dB
from 20 MHz to 1 GHz
> 90 dB at
3 GHz
> 80 dB at 6 GHz
> 65 dB at 8 GHz
> 60 dB at 10 GHz > 55
dB at 18 GHz > 50 dB
at 20 GHz |
Finish: |
Mist gray
epoxy powder coat with black hardware |
Rack Mount: |
Standard rack slides |
RF
Reflective Foam: |
Standard RF
reflective attenuation foam provides 24 dB
attenuation. |
Ventilation |
Two (2) vents, one in
the door and one in the rear wall. Optional 24 CFM AC or DC vent fan
available |
Connector Panel |
Blank Removable panel is standard, 6.0" wide x 3.5" high, 0.090" thick,
Stainless Steel |
Connectors: |
None standard.
Please specify connector requirements from
Connector & I/O Options |
Overall
Dimensions: |
External:
11.7" H x 16.65" W x 18.0" D (including handle) Internal:
10½” H x 7⅛” W x 16.8” D (Nom. Inside Dimensions per chamber) |
Weight (shipping): |
31 lbs (14 kg) |
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