Installation manual

Page 20
Technical Specifications
The McMurdo F1 DSC Radiotelephone conforms to all relevant international
requirements agreed for a VHF DSC class D radiotelephone by ETSI, IEC, ITU and
IMO.
These specifications include ETSI 301 025, IEC 62238, IEC 60945, ITU-R M.493-10
and ITU-R M.541-8
General Information
International channels All channels for international 25kHz operation
US channels All channels for US waters with 25 kHz spacing
All US weather channels
Private channels 30 programmable channels for 25kHz operation
Channel spacing 25kHz
Operation modes Simplex/semi-duplex
Modulation G3EJN for telephony operation
G2B for DSC operation
Frequency stability 10ppm
Aerial connector SO239 50 ohm female
Temperature range -15°C to +55°C
Supply voltages 12 V DC nominal, range 10.8 to 15.6V DC
Supply current 0.23A standby
1.6A transmit low power
5.0A transmit high power
Transceiver dimensions 85mm h x 195mm w x 180mm d
Transceiver weight 2.1kg
Receiver
Sensitivity -119dBm for 12dB SINAD
AF internal speaker 4W/4 ohms
AF external speaker 4W/4 ohms
Distortion THD < 5%
Signal/noise ratio > 40dB
AF response 6dB/octave
Spurious emission < 2nW
Spurious response < 70dB
Intermodulation attn. > 68dB
Blocking better than
> 90dBmV
Co-channel rejection > 10dB
Adjacent ch. selec. > 70dB