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CORNERSTONE SMR INCORPORATED

ESP520

The ESP520 is a synthesized, microprocessor based, dash mount mobile transceiver designed to meet the rigid technical criteria for the 220 to 222 MHz radio service.

  • TRUNKED OPERATION
  • CONVENTIONAL OPERATION
  • ALPHANUMERIC DISPLAY
  • 20 MODES
  • EXTERNAL SPEAKER
  • USER PROGRAMMABLE SCAN
  • REPEATER TALKAROUND
  • 20 WATTS RF POWER
  • EXTERNAL MOBILE PROGRAMMING
  • BUILT-IN DIGITAL SIGNALING
  • SYNTHESIZED
  • DIE CAST CHASSIS
SEA incorporates the latest technologies to provide an advanced featured mobile radio that meets the requirements of system operators and users for reliability, durability, and operational ease of use.

The compact design utilizes state of the art narrowband radio technology and digital signal processing (DSP) to meet the highest standards of operational performance. To ensure that SEA mobiles provide reliable service under rugged field conditions, the strength of a one piece die cast chassis is combined with surface mount manufacturing, solid state electronics, and superior parts and sub-assemblies.

Model ESP520 features an alphanumeric display, external speaker, twenty operational modes, scan, three user-programmable scan lists, out-of-range indicator, horn alert, ignition sense with battery saving turn off timer, and 20 Watts peak envelope RF power output.

FEATURES & BENEFITS

Trunked and conventional operation...
One radio for two kinds of systems. An ESP520 can operate in trunked radio systems, conventional radio system, or both.
Repeater talkaround...
Mobile to mobile communications when outside repeater range.
Alphanumeric display...
Helps the user with word descriptions of the radio's operation.
20 modes...
Capable of operating in twenty different radio systems to meet the needs of fleets with large operating areas.
Scan...
Mode scan to insure that all calls are received.
20 Watts RF power output...
Enough power to provide reliable communications and not exceed FCC limits.
External EEPROM programming...
Easy mobile programming saves time and money.
Die cast chassis...
Rugged construction for long life.

SEA ESP520
SPECIFICATIONS

GENERAL
Frequency Range: TX: 220-222 MHz
RX: 220-221 MHz
Channel Spacing: 5 kHz
Modes: 20
Dimensions (HxWxD): in: 2.35 x 7.45 x 9.75
cm: 5.97 x 18.90 x 24.76
Weight: lbs: 4.10
kg: 1.86
Temperature Range: -30°C to +60°C
Input Voltage: 13.6 VDC (negative ground)
Current Drain: Transmit: 4.1 A
Receive: 1.1 A
Standby: 600 mA
Antenna Connector: Mini UHF
FCC Type Acceptance ID: BZ68RIESP520
FCC Compliance: Parts 15 and 90
 
RECEIVER
Sensitivity: 12 dB SINAD <0.35 uV
Adjacent Channel Rejection (5 kHz): >60 dB
Spurious and Image Rejection: >70 dB
Intermodulation Rejection: >70 dB
Modulation Bandwidth: 4 kHz
AGC Range: 100 dB
Audio Output Power: 4 watts @ 3.2 ohms
Audio Distortion: <5%
Input Impedance: 50 ohms
 
TRANSMITTER
RF Power Output: 20 Watts Peak Envelope Power
Frequency Stability: ±1.5 ppm*
Spurious & Harmonic Emissions: >70 dB
FM Hum & Noise: -34 dB
Emission Designator: 4K00J3E
Audio Distortion (@ 1 kHz): <5%
Output Impedance: 50 ohms
* synchronization to ESP1000 base station achieves ±0.25 ppm
 
Specifications subject to change without notice or obligation.