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GFU27 User Guide 

  

Version 

3.0 

 

 1

 

 

 

 

 

 

 

GFU27 

 

Radio Modem  

Transceiver 

 

User Guide 

 
 

 
 
 
 
 
 
 
 
 
 

Summary of Contents for GFU27

Page 1: ...GFU27 User Guide Version 3 0 1 GFU27 Radio Modem Transceiver User Guide ...

Page 2: ...uitability and applicability to a certain application Under no circumstances is the manufacturer or the developer of a program responsible for any possible damages caused by the use of a program The names of the programs as well as all copyrights relating to the programs are the sole property of SATEL Any transfer licensing to a third party leasing renting transportation copying editing translatin...

Page 3: ...s allowed to be used in the following countries either on licence free channels or on channels where the operation requires a licence More detailed information is available at the local frequency management authority Countries AT BE BG CY DK FI FR DE GR IS IE IT LU MT NL NO ES SE CH GB AU CA CZ EE HU LV LT PL PT RO SI SK ZA US WARNING Users of GFU27 radio modem in North America should be aware tha...

Page 4: ...lectromagnetic compatibility and electrical safety and other relevant provisions of Directive 1999 5 EC Therefore the equipment is labelled with the following CE marking The notification sign informs user that the operating frequency range of the device is not harmonised throughout the market area and the local spectrum authority should be contacted in prior of use ...

Page 5: ...ponsible if any products manufactured by it are used in unlawful ways o The devices mentioned in this manual are to be used only according to the instructions described in this manual Faultless and safe operation of the devices can be guaranteed only if the transport storage operation and handling of the devices is appropriate This also applies to the maintenance of the products o To prevent damag...

Page 6: ...FETY INSTRUCTIONS 5 TABLE OF CONTENTS 6 INTRODUCTION 7 1 GFU27 RADIO DATA MODEM 8 1 1 Technical specifications 9 2 USER INTERFACE 11 2 1 Data Power interface 11 2 2 LED indicators 12 2 3 RF interface 12 3 MODEM CONFIGURATION 13 3 1 Default settings 13 3 2 Configuration 14 3 3 Programming Mode 14 3 3 1 Changing the settings 14 ...

Page 7: ...ded for use in applications ranging from data transfer to alarm relay systems End users of SATEL products include both public organisations and private individuals SATEL is the leading European manufacturer of radio modems SATEL radio modems have been certified in most European countries and also in many non European countries GFU27 is a variant of the standard SATELLINE 3AS TR1 radio modem It has...

Page 8: ... 1 GFU27 radio data modem GFU27 consists of a radio modem module SATELLINE M3 TR1 and a radio interface adapter board both enclosed into a plastics housing It acts as a plug in unit for Leica Geosystems GPS devices Figure 1 2 Block diagram of GFU27 radio data modem ...

Page 9: ... kHz Sensitivity 114 dBm 12 5kHz 111 dBm 25 kHz BER 10 E 3 FEC On Co channel Rejection 12 dB FEC On Adjacent Channel Selectivity 47 db 12 5 kHz 52 dB 25 kHz FEC On Intermodulation Attenuation 60 dB FEC On Blocking 86 dB FEC On Spurious Rejection 60 dB FEC On Spurious Emission 100 dBm 80 dBm on 3rd harmonics 1215 1240 MHz Power Consumption typical 1 2 W 3 W 0 5 W output power 7 W 1 W output power P...

Page 10: ...e1 30 C 70 C Functional Temperature Ranges Note 2 25 C 55 C Complies with standards 40 C 85 C Storage Antenna Connector 50 ohm TNC female Housing Metal inside plastic housing Size L x W x T 145 mm x 70 mm x 50 mm Weight 325 g OTHER MEASURES ESD failure threshold 8 kV contact 15 kV air discharge Immunity test 10V m Note 1 Due to radio electronic design the receiver is about 6 15dB less sensitive on...

Page 11: ...iguration PIN SIGNAL NAME DIRECTION DESCRIPTION 1 RTS IN HW handshake 2 CTS OUT HW handshake 3 GND Power and Signal ground 4 RXD OUT Receive data V24 level 5 TXD IN Transmit data V24 level 6 ID IN OUT One wire bus terminal to Dallas DS2433 7 MODE IN Switch Data mode 0 V Prog mode 12 V 8 VCC IN Supply voltage 12 V 10 ...

Page 12: ... 50 Ohm The frequency band of the modem is tuned at the factory The user can change the operating frequency of the radio modem afterwards within the tuning range of 70 MHz Of course all local regulations set forth by the authorities must be taken into consideration The radio channel spacing is set at the factory and can also be changed afterwards by the user in between 12 5 20 and 25 kHz The data ...

Page 13: ...Power 1000 mW Range 100 200 500 or 1000 mW Signal threshold 112 dBm 80 118 dBm FCS OFF ON OFF Tx Start Delay 0 ms 0 65535 ms Radio Compatibility SATEL 3AS SATEL 3AS Option1 PCC 4 FSK Option 2 PCC GMSK 3 TrimTalk Addressing RX Address OFF ON OFF TX Address OFF ON OFF RX addressing to RS port OFF ON OFF TX address auto switch OFF ON OFF Serial port 1 Status ON ON Interface LVTTL Fixed Data speed 192...

Page 14: ...re fully configurable in Programming Mode by using a suitable terminal program The most recommendable set up is GEV171 programming cable a power supply and the SaTerm terminal program GEV171 cable contains a Prog mode switch to enable easy shifting into the Programming Mode The radio modem will shift into the Programming Mode by setting the Lemo connector pin 7 to 12 V When using the GEV171 cable ...

Page 15: ... settings 1 Radio frequency 438 0000 MHz CF 438 0000 MHz spacing 25 kHz 2 Radio settings Tx power level 1000 mW Signal threshold 112 dBm TX start delay 0 ms Diversity mode OFF 3 Addressing RX address OFF TX address OFF RX address to RS port OFF TX address autoswitch OFF 4 Serial port 1 ON 19200 bit s 8 bit data None parity 1 stop bit 5 Serial port 2 OFF 19200 bit s 8 bit data None parity 1 stop bi...

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