MFJ -5124Y Manual de Instruções

INSTRUCTION MANUALCAUTION: Read All Instructions Before Operating EquipmentMFJ ENTERPRISES, INC.300 Industrial Park Road Starkville, MS 39759 USATel

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 10 As you change VFO frequency, the display will track any change in loss in real time (losses norm

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 11 capacitive because the reactance exhibited by a capacitor tends to decrease as frequency increases

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 12 Sign Ambiguity: In Inductance mode, the analyzer measures reactance (X) and the operating frequen

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 13 [ ] Press Gate again for 1.0-sec gate time: To return to the 0.1-sec default speed, press Ga

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 14 As you enter Advanced mode, keep in mind that all of the same operating limitations and precautio

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 15 minimal compared to forward power. A smaller number (-9.5 dB) equates to higher SWR (~ 2:1) becaus

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 16 [ ] Tune the VFO higher in fre

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 17 5.7 Match Efficiency: Also called Percentage of Transmitted Power, this measurement is directly

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 18 reactance into the system. Phase errors compound with multiple half-waves, so it's best to li

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 19 at the far end of the cable. If it is elevated or the Impedance (Z) fluctuates very much as you tu

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 2 1.0 Introduction The MFJ-259C is a compact battery-powered RF-impedance analyzer that covers 0.53-

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 20 [ ] Calculate the new (target) antenna length (L2) as follows: L2 = L1 x SF. Example: Your 132-

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 21 fed dipoles) with the longer leg being the dominant vertical radiator. The counterpoise is often f

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 22 If calculations and the Vf accurate, your null should occur ~20% below the target frequency to ref

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 23 180 0j+Xj-XR1 (Low)R2 (High)TransmissionZ = R1 x R2°°25 Ohms100 Oh

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 24 inductance through lead length or internal structure. For best accuracy with a variable load, disc

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 25 voltage at the input port generated by the MFJ-259C to the load voltages at the other ports using

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 26 • Voltage at the center of the resonance becomes high, causing severe arcing. • Current in the w

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 27 LIMITED 12 MONTH WARRANTY MFJ Enterprises, Inc. warrants to the original

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 2 switches, jacks, or cables, etc. sent to MFJ Enterprises, Inc. will be returned at the owner's

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 3 1.2 Analyzer Measurement Functions • SWR: LCD display and analog meter, Zo = 50Ω or Zo programma

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 4 1.5 Calibration Plane: Your analyzer's Calibration Plane is the point of reference where all

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 5 2.0 Power Management Read this section carefully -- supplying the wrong external voltage or fa

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 6 Important Warning: Never store your unit more than a month with batteries installed. Also, never sh

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 7 The third screen provides a voltage check -- and flashes a warning if voltage is too low:

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 8 with all harmonics suppressed below -25 dBc. Although not phase-locked, stability is adequate for m

MFJ-259C Instruction Manual HF/VHF SWR Analyzer 9 [ ] Read Impedance Magnitude (Z) on the analog meter scale.