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Installation Cd50-65 And Cd51-65 Series 380-440 Mhz Mopole™ Antenna

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Installation CD50-65 and CD51-65 Series Mopole™ Antenna 380-440 MHz For use with RG58C/U cable only The CD50 and CD51 Series Antenna is an end fed dipole (Mopole) which is ground plane independent. The antenna has a high impedance matching circuit which is enclosed in a high impact ABS housing. The CD50 uses a tapered 17-7PH stainless steel radiating section and the CD51 a PVC enclosed copper braid element. In the feed design the terminated RG58 forms part of the high impedance matching circuit and no D.C. continuity exists between the centre conductor of the cable and the radiating element and a short exists from the cable shield to the radiating element. NOTE: Although the antennas when tuned track very closely with the cutting chart provided, this chart should be used as a guide only and the antenna should be turned for the desired operational band centre. To Terminate The Antenna: 1. Remove approximately 50mm of the outer PVC jacket of the RG58 cable. 2. Trim the exposed cable braid shield so that approximately 10-15mm remains showing. 3. Fold the remaining braid shield back over the outer PVC jacket of the cable as shown. 4. Trim the exposed inner conductor, complete with insulation to the EXACT length shown below. 5. Screw the prepared cable into the coil housing until the cable ‘bottoms’. The cable is now terminated. No soldering of the conductors is necessary. Please note the D.C. continuity checks above. 6. Trim whip top to frequency using an inline VSWR meter. Actual Length 48mm RG58C/U CABLE Cutting Chart 365 360 355 350 345 340 335 330 325 320 315 310 305 300 295 290 285 280 275 270 265 260 255 250 245 240 235 230 370 375 380 385 390 395 400 405 410 415 420 425 430 435 440 445 450 455 Frequency (MHz) Copyright RF Industries Pty Ltd 2014. Subject to change without notice. INS-41921-1 1 rfiwireless.com.au