TOPCON SRL-35 WATT RADIO
External high-power Site Radio Link
Topcon’s SRL-35 high-power UHF radio modem provides the signal strength you’ll need to cover the largest Consltruction and Surveying sites. At 35 watts, the SRL-35 provides reliable signal strength featuring a wide 70 MHz operating bandwidth. With user selectable channel spacing and a unique continuous data package correction algorithm, you’re assured of reliable operation across the site.
Compatible with most third-party radios, the SRL-35 provides long range access to your data when you need it.
Built to IP67 standards for the harsh conditions of the jobsite, Topcon’s SRL-35 features a weather-protected LCD display, integrated operator keyboard and reinforced connectors. There’s even an over-temp auto-shutdown temperature feature to protect your investment.
*25W limited output power version is available as an order option for geographical areas where regulatory restriction on output power applies.
FEATURES:
• High output power of up to 35 Watts
• Wide 70 MHz (403-473 MHz) operating range
• User selectable channel spacing (12.5, 20 or 25 kHz)
• Compatible with Satel, Trimble and Pacific Crest
• Multi-function user interface to configure the radio modem
• Automatic prevention of overheating
• IP67 rating to withstand harsh environments
SRL-35 Specifications | |
---|---|
Transceiver | |
Frequency Range
|
403 - 473 MHz |
Tuning Range
|
70 MHz |
Channel Spacing
|
12.5 / 20 / 25 kHz (SW selectable) |
Frequency Error Tolerance
|
< 1kHz |
Type of Emission
|
F1D |
Communication Mode
|
Half-Duplex |
Transmitter | |
Carrier Power
|
10, 20, 25, or 35W / 50 ohm (default) 5, 10, 20 or 25W / 50 ohm (option*) |
Carrier Power Stability
|
+2 dB / -3 dB |
TX Duty Cycle **
|
100% (22°C / 35°C) 40% 35W 20 min / 13 min No limit 10W No limit / 50 min No limit |
Receiver | |
Sensitivity
|
< -114 dBm (BER < 10 E-3)*** |
Co-channel Rejection
|
> -12 dB |
Adjacent Channel Selectivity
|
>47 dB @12.5 kHz / > 52 dB @ 25 kHz |
Intermodulation Attenuation
|
> 60 dB |
Spurious Radiation
|
< 2 nW |
Data Modem | |
Interface
|
RS-232 |
Interface Connector
|
IP 67, 8-pin ODU |
Data Speed of RS Interface
|
300 - 38400 bps |
Data Speed of Radio Interface
|
19200 bps (25 kHz) 9600 bps (12.5 / 20 kHz) |
Data Format
|
Asynchronous RS-232 |
Power and Electrical | |
Power Consumption (average)
|
1.8 W typical (Receive) 120 W typical (Transmit 35W output power) 100 W typical (Transmit 25W output power) 0.4 W typical (Sleep State) |
Operating Voltage
|
+9 to +16 Vdc 4-pin ODU MINI-Snap Size 1 (feeding) |
Physical | |
Dimensions
|
189 (H) x 138 (W) x 71 (D) mm (with connectors) |
Weight
|
1.42 kg |
Antenna Connector
|
TNC, 50 ohm, female |
Enclosure
|
Aluminium |
Environmental | |
Temperature Range
|
Operating: -25°C to +55°C, -40°C to +75°C (absolute min / max) Storage: -40°C to +85°C |
Waterproof
|
IP 67 (NEMA 6) |
• SRL-35 external radio
• NMO-TNC antenna mount
• 3 meter TNC-TNC antenna cable
• Radio power cable
• Alligator clips to SAE cable
• Programming/data cable
• Soft Case