Guideline Geo 2500MHZ Shielded 2.5 GHz Antenna User Manual Introduction som tex s4kmanualen
Mala GeoScience AB (publ) Shielded 2.5 GHz Antenna Introduction som tex s4kmanualen
User manual

RAMAC 2.5 GHz antenna  
Operating manual 
Version 1.0 
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Table of Contents 
_________________________________________________ 
1 Introduction 3 
1.1 Unpacking and Inspection 4 
1.2 Repacking and Shipping 4 
1.3 Limited Warranty and Liability 4 
2 Hardware and Start Up 5 
2.1 Hardware 5 
2.2 Start up 5 
3 Using the RAMAC 2.5 GHz 7 
4 RAMAC 2.5 GHz specifications 9 

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1 Introduction   
__________________________________________________ 
Thank you for purchasing the RAMAC 2.5 GHz, the shielded 
high frequency antenna. 
Together with the RAMAC CUII control unit and the RAMAC 
Monitor for data acquisition you have the entire 2.5 GHz at 
hand, the high frequency concept, giving you a straightforward 
one-man operated GPR system for concrete, forensic and 
other high-resolution applications.  
We at Malå GeoScience welcome comments from you 
concerning the use and experience of this equipment, as well 
as the contents and usefulness of this manual. Please take the 
time to read through the assembling instructions carefully and 
address any questions or suggestions to the following: 
Main Office:  Subsidiary: 
Malå GeoScience  Malå GeoScience USA, Inc. 
Skolgatan 11  2040 Savage Rd, P.O. Box 80430         
S-930 70 Malå  Charleston, SC 29416                   
Sweden USA  
Phone: +46 953 345 50  Phone:   +1-843 852 5021                 
Fax: +46 953 345 67  Fax:  +1-843 769 7397     
E-mail: sales@malags.se E-mail: sales.usa@malags.se
Technical support issues can be sent to: support@malags.se 
Information about MALÅ GeoSciences products is also 
available on Internet: http://www.malags.com
Copyright© 2004 Malå Geoscience AB   
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1.1  Unpacking and Inspection 
Great care should be taken when unpacking the equipment. 
Be sure to verify the contents shown on the packing list and 
inspect the equipment for any loose parts or other damage. All 
packing material should be preserved in the event that any 
damage occurred during shipping. Any claims for shipping 
damage should be filed to the carrier. Any claims for missing 
equipment or parts should be filed with Mala GeoScience. 
1.2  Repacking and Shipping 
If original packing materials are unavailable, the equipment 
should be packed with at least 80 mm of absorbing material. 
Do not use shredded fibres, paper wood, or wool, as these 
materials tend to get compacted during shipment and permit 
the instruments to move around inside the package. 
1.3  Limited Warranty and Liability 
Malå Geoscience warrants that, for a period of 12 months from the delivery 
date to the original purchaser, Malå Geoscience products will be free from 
defects in materials and workmanship. Except for the foregoing limited 
warranty, Malå Geoscience disclaims all warranties, express or 
implied, including nay warranty of merchantability or fitness for a 
particular purpose. Malå Geoscience will repair and replace parts or 
equipment which are returned to Malå Geoscience, transportation and 
insurance pre-paid, without alteration or further damage, and which in Malå 
Geoscience´s judgement, were defective or became defective during 
normal use.  
Malå Geoscience assumes no liability for any direct, indirect, special, 
incidental or consequential damages or injures caused by proper or 
improper operation of its equipment or software, whether or not 
defective.  

2  Hardware and Start Up 
__________________________________________________ 
2.1 Hardware 
The 2.5 GHz is a one-piece radar antenna where the antenna 
elements are mounted in a small handheld, shielded box easily 
mounted on a small wheel carriage. See picture below. 
The RAMAC 2.5 GHz antenna communicates with the control 
unit CUII through a 3 m long data cable, giving you an easily 
and freely movable antenna.  
2.2  Start up  
When initialising 2.5 GHz measurements the following easy 
steps are made to connect and start up the whole GPR 
system: 
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•  Make sure that the battery is fully charged for the 
control unit CUII (See Operating Manual CUII) and 
correctly mounted. This battery also supplies the 2.5 
GHz antenna with power.  
•  Connect the CUII supporting system part to the CUII 
itself. Three short coaxial cables to the R, T and D 
connectors and the encoder cable to the CUII encoder 
connection. The T corresponds to transmitter, R to 
receiver and D to data. See picture below. 
•  Connect the CUII (LPT1) to the external PC parallel port 
or to the parallel port on the RAMAC Monitor. 
•  Connect the 2.5 GHz data cable to the control unit CUII 
(dark gray connector at the left-hand side in the picture 
above).  
•  Attach an appropriate length-measuring device and 
connect it to port ENC on the antenna. When using the 
wheel carriage, the encoder is mounted on one of the 
wheels and only need to be connected to the antenna.  
•  Turn on the power on the CUII. Turn on the PC or the 
RAMAC Monitor. Your RAMAC 2.5 GHz is now ready 
for operation. 
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3  Using the RAMAC 2.5 GHz 
__________________________________________________ 
The 2.5 Ghz antenna is operated by 2 buttons on the shielded 
antenna box itself.  You can easily create a new profile and 
start and stop the data collection. 
The 2.5 Ghz antenna can also be used together with an 
extension handle (see picture below), giving you access to the  
two different remote controls to manage the system. 
Observe! 
One of the remote controls (on the antenna itself and on the 
extension handle) (see pictures below) also functions as a “kill” 
switch, so it has to be held down at all times duing 
measurments. If the button is released the transmitter will stop 
transmitting within 10 seconds. 
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The extension handle, with the remote control, are mounted on 
the wheel carriage and connected on the back-side of the 2.5 
GHz antenna.  See picture below.  
When the 2.5 GHz system is used together with the RAMAC 
XV11 Monitor, you have access o the fully integrated data 
collection, 2.5D analysis tool and Migration Wizard.  
See Manuals for the XV11 Monitor and Easy3D for further 
details.  
Note!   When working with the high frequency antenna as a hand 
held and wall-scanning device, it is required to activate the 
kill-switch function (according to FCC part 15.509). For more 
information see Section System Settings and FCC Part 15. 
When used as a normal GPR, (floor scanning, shallow utility 
detection etc.) it’s not required to activate the kill-switch. 
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4  RAMAC 2.5 GHz specifications 
__________________________________________________ 
Centre frequency  2.5 GHz  
Bandwidth  > 100 % 
Time window  > 50 ns 
Reprate 100 kHz 
Pulse width  430 ps 
Total weight incl. batteries  0.6 kg  
Cable length  3 m 
Power supply  8 V Li-ion rechargeable batteries 
Operating time 3 hours 
Operating temperature  -20 to + 50 0C  
Control Unit  RAMAC CUII  
Data acquisition  RAMAC Monitor (preferred) or other 
laptop (with Malå Geoscience software 
Ground Vision) 
Environmental  IP67