VEHICULAR SATELLITE TELEPHONES FROM MITSUBISHI
ST-111/211

Mitsubishi Electronics offers the ST211D and the ST241 land mobile satellite telephone systems and the ST221 fixed site satellite telephone system. These models deliver wide-area dispatch, point-to-point voice, real- time data, and fax communications throughout North America, Central America and the Caribbean. Mitsubishi's international experience with satellite and other wireless technologies assures superior, economical communication solutions for remote sites and centralized dispatch/management centers (fixed site), and for vehicles and fleets of all types (land mobile).

MAIN FEATURES:

For the fixed site and land mobile models:

• Secure digital voice communication
• Broadcast dispatch channels with a familiar push-to-talk microphone
• 4800 baud real-time data port
• Fax communications (Group III) compatible
• Hands-free operation
• 99 alphanumerical memory locations
• 3 speed dial keys
• Security and call restriction functions
• Call timer and accumulated call time functions
• Advanced features like caller ID, call waiting, and conference calling
• Satellite signal strength indicators

For the ST221 only:

• 50,100, or 150 foot antenna cable length options
• Easily installed antenna mount
• No-feed-horn design resists the elements

For wide-area dispatch, there is a Net Radio option, also called satellite dispatch, which links as many as 10,000 users in 15 configurable talk groups. The required push-to-talk microphone provides access to network communications between mobile users and dispatch centers The PTT handset features include:

• Automatic net (channel) reconfiguration from dispatch
• Auto-scan for active nets
• Point-to-point private mode calling
• Emergency call function
• Net locking and call barring features

 

Technical Specifications

Communication Modes
Voice	Full duplex digital-voice activated
Dispatch	Half duplex digital (option)
Data	1200bps /2400bps /4800bps
Fax	Group III facsimile (option)
System Specifications
Transmit frequencies	1626.5 – 1660.5 MHz
Receive frequencies	1525.0 – 1559.0 MHz
Polarization	Right-hand circular
Channel spacing	6 kHz
EIRP	12.5 – 16.5 dBW
G/T (ST221)	-10 dB/K (5 to 90 degrees elevation)
G/T (ST211D)	-16 dB/K (15 to 60 degrees elevation)
G/T (ST241)	-13 dB/K (25 to 60 degrees elevation)
Turning rate (ST211D & ST241)	60 degrees/sec. Max.
Turning acceleration (ST211D & ST241)	20 degrees/sec. Max.
Interface
Voice	RJ45, proprietary protocol
Data	DB25, RS232C, AT Command set
Fax	DB25, RS232C, plus optional Group III converter
Power Consumption
Primary AC voltage (ST221 only)	120V AC nominal (85V – 265V AC range)
Primary DC voltage	12V DC nominal (11.5V – 15.6V DC range)
Transmit (ST221)	2.4A
Transmit (ST211D & ST241)	5.5A
Receive (ST221)	1.7A
Receive (ST 211D & ST241)	2.7A
Physical Specifications for Transmitter and Handset
Transmitter Unit Size	8.1"W x 2.0"H x 12.1'D
Transmitter Unit Weight	6.0 lbs.
Handset Size	8.0"W x 2.2"H x 1.3'D
Handset Weight	0.7 lbs.
Physical Specifications for Antenna Units
AU 501A (For ST221)	21.0" D x 6.0"H, 13.2 lbs.
ST211D Antenna unit	6.8"D x 6.6"H, 3.0 lbs.
ST241 Antenna unit	12.4"D x 7.3"H, 5.5 lbs.
Physical Specifications for Beam Steering Units (ST211D & SST241)
Size	0.8"W x 2.0"H x 2.0"D
Weight	0.4 lbs.
Cables (AU-TU )	In 50, 100, and 150 ft. lengths . Contact us for RF (2) and control specs.
Environmental Specs
Operating Temperature of Antenna Unit	-22F to +109F
Operating Temperature of Transceiver Unit	-22F to +131F
Storage Temperature of Antenna	-67F to +185F
Storage Temperature of Transceiver	-67F to +185F
Rain (antenna unit)	2.0"/hr.
Wind (Antenna units ST211D & ST241)	120 mph operating, 163 mph storage
Wind (Antenna unit ST221)	67mph or 100 mph w/ positive lock when operating, 134 mph storage

The standard equipment for these satellite telephones includes a transceiver unit, a handset, a handset cradle assembly (including junction box), AU-TU cables (length and type vary by model), wiring harness/power cable/ mounting hardware, 21" flat panel antenna with integrated RFU for the ST221 model, mid-gain dome antenna w/ integrated RFU for SST211D model, and a high gain dome antenna w/ integrated RFU for the ST241 model.

Optional accessories include a push-to-talk (PTT) microphone, an external hands-free speaker (optional for dispatch use), hands-free microphone, telular 2-wire interface for standard telephone usage, and a horizontal/vertical transceiver mounting kit.