Satelline 3ASD Radio Modem & Dipole

Satelline 3ASD Radio Modem & Dipole – Available for rental, hire and ex-rental purchase from Ashtead Technology.

The Satelline-3ASd is a half-duplex radio modem suitable for a variety of data transfer applications, in particular ones demanding high speed and precisions. In addition to the maximum data speed of 19.2 kbps and channel spacings 25 kHz or 12.5 kHz, it offers a number of features and functions that are highly useful in the installation stage as well as in routine operation.

The Satelline-3As software includes a selectable error correction, which improves the function of the radio modem under interference.

Satelline-3AS is compatible with the interface types RS-232, RS-422 and RS-485. The software of the radio modem can be updated through the interface from a PC, without changing the hardware. The Model Satelline-3ASd is equipped with a LCD display of its own, which facilitates programming of the radio modem.

The amount of data transferred in a local area data communications network exhibits a tendency of continuos growth. On the other hand, the average size of the communications system is increasing. Satel's response to these market tendencies is the Satelline-3ASd, the first radio modem from Satel with a data speed of 19.2 kbps over the air. The data speed of the RS interface is selectable between 300 & 38400 bps.

Technical specifications

Tranceiver Frequency Range370 & 470 MHz
Transceiver Channel Spacing12.5 kHz/ 25 kHz
Number of channels160 / 80
Frequency Stability+/- 1.5 kHz
Type of EmissionF1D
Communication ModeHalf-Duplex
Transmitter Carrier Power10 mW & 1W / 50 Ohm
Carrier Power Stability+2 dB / -3 dB
Adjacent channel Poweraccording to ETS 300 220 / ETS 300 113
Spurious Radiationsaccording to ETS 300 220 / ETS 300 113
Receiver Sensitivity-116 & -110 dBm (BER - 10 E-3)
Co-channel Rejection-12 dB
Adjacent Channel Selectivity60 dB
Intermodulation Attenuation65 dB
Receiver Spurious Radiations2 nW
Data Modem InterfaceRS-232 or RS-485, RS-422
Interface ConnectorD15, female
Data Speed of RS Interface300 - 38400 bps
Data Speed of Radio Interface19200 bps (25 kHz channel) 9600 bps (12.5 kHz)
Data FormatsAsynchronous Data
Operating Voltage+9 & +30 VDC
Power Consumption2.5 VA typical (Receive) 6.6 VA typical (Transmit) 0.05 VA typical (when DTR is '0')
Temperature Range-25 degrees C to +55 degrees C
Antenna ConnectorTNC, 50 ohm, female
ConstructionAluminium Enclosure


H x W x D137 x 67 x 29 mm5.4 x 2.6" x 1.1""2.5kg5.5 lbs
Installation Plate130 x 63 x 10 mm5.1 x 2.5" x 0.4""