Rf200 antenna user manual version 3.0 january 2004 laplace instruments ltd 3b, middlebrook way cromer norfolk nr27 9jr uk tel: 012 63 51 51 60 fax: 012 63 51 25 32.
Rf200/500 user manual 2 index 1.0 introduction page 3 background 2.0 rf200 broadband antenna page 4 assembly page 4 in use page 6 antenna factor page 7 3.0 ground plane page 8 4.0 test site calibration page 9.
Rf200/500 user manual 3 1.0 introduction 1.1 antenna background for measurement of field strength (far field emission level) an antenna is required which will act as a transducer, converting field strength (mv/m) to mv signals output down a coax cable. Antennas to cover the wide frequency ranges req...
Rf200/500 user manual 4 2.0 rf200 broadband antenna the broadband antenna will allow the user to detect and measure radiation over the frequency range 30mhz to 1ghz. This is shipped in a ‘knocked-down’ form to ease packaging and to minimise the potential for damage in transit. Assembly is straightfo...
Rf200/500 user manual 5 fig 1 rf200 assembly rf200 stand assembly.
Rf200/500 user manual 6 fig 2 rf200 stand this is supplied as a central vertical support fitted with a leg attachment moulding and three legs. The legs are a push fit into the leg attachment moulding. The vertical support has a friction slide fit in the leg attachment moulding so that the antenna ca...
Rf200/500 user manual 7 2.3 antenna factor the sensitivity of any antenna will vary with frequency. I.E. It will be more sensitive at some frequencies and less sensitive at others. A plot of sensitivity vs frequency is called the antenna factor. The sa1000 windows software has the antenna factor for...
Rf200/500 user manual 8 antenna factor tabular data freq(mhz) a.F. (db/m) 30 0 40 -1 50 -2 60 -3 70 -5 80 -7 100 -9 120 -9 140 -8 160 -7 180 -6 200 -5 freq(mhz) a.F. (db/m) 220 -3 240 -2 260 -4 280 -5 300 -3 320 -2 340 -1 360 0 380 1 400 2 420 3 440 3 freq(mhz) a.F. (db/m) 460 4 480 5 500 5 550 6 60...
Rf200/500 user manual 9 1 .00 1 .10 1 .20 1 .30 1 .40 1 .50 1 .60 1 .70 1 .80 1 .90 2 .00 2 .10 2 .20 2 .30 2 .40 2 .50 2 .60 2 .70 2 .80 2 .90 3 .00 3 .20 3 .40 3 .60 3 .80 4 .00 4 .20 4 .40 4 .60 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 antenna height mhz 3-6...
Rf200/500 user manual 10 if using a an open field test site, this should also be calibrated. The ground plane reflection alone can have a significant effect on the test results. To calibrate a site, a known source should be used. Laplace can supply a calibrated source, complete with calibration curv...
Rf200/500 user manual 11 laplace instruments ltd 3b, middlebrook way cromer norfolk nr27 9jr tel: +44 (0) 12 63 51 51 60 fax: +44 (0) 12 63 51 25 32 e: tech@laplace.Co.Uk web: www.Laplaceinstruments.Com.
