MFJ MFJ-266 Скачать руководство пользователя страница 23

 

 

 

 

12 MONTH LIMITED WARRANTY 

 
MFJ Enterprises, Inc. Warrants to the original owner of this product, if manufactured by MFJ Enterprises, Inc. 
and purchased from an authorized dealer or directly from MFJ Enterprises, Inc. to be free from defects in 
material and workmanship for a period of 12 months from date of purchase provided the following terms of 
this warranty are satisfied. 
 
1.  The purchaser must retain the dated proof-of-purchase (bill of sale, canceled check, credit card or money 

order receipt, etc.) describing the product to establish the validity of the warranty claim and submit the 
original or machine reproduction of such proof-of-purchase to MFJ Enterprises, Inc. at the time of 
warranty service.  MFJ Enterprises, Inc. shall have the discretion to deny warranty without dated proof-of-
purchase.  Any evidence of alteration, erasure, or forgery shall be cause to void any and all warranty terms 
immediately. 

 
2.  MFJ Enterprises, Inc. agrees to repair or replace at MFJ’s option without charge to the original owner any 

defective product under warranty, provided the product is returned postage prepaid to MFJ Enterprises, 
Inc. with a personal check, cashiers check, or money order for $12.00 covering postage and handling . 

 
3.  MFJ Enterprises, Inc. will supply replacement parts free of charge for any MFJ product under warranty 

upon request.  A dated proof-of-purchase and a $5.00 personal check, cashiers check, or money order must 
be provided to cover postage and handling. 

 
4.  This warranty is NOT void for owners who attempt to repair defective units.  Technical consultation is 

available by calling (662) 323-5869. 

 
5.  This warranty does not apply to kits sold by or manufactured by MFJ Enterprises, Inc. 
 
6.  Wired and tested PC board products are covered by this warranty provided only the wired and tested PC 

board product is returned.  Wired and tested PC boards installed in the owner’s cabinet or connected to 
switches, jacks, or cables, etc. sent to MFJ Enterprises, Inc. will be returned at the owner’s expense 
unrepaired. 

 
7.  Under no circumstances is MFJ Enterprises, Inc. liable for consequential damages to person or property by 

the use of any MFJ products. 

 
8.  Out-of-warranty Service: MFJ Enterprises, Inc. will repair any out-of-warranty product provided the unit 

is shipped prepaid.  All repaired units will be shipped COD to the owner.  Repair charges will be added to 
the COD fee unless other arrangements are made. 

 
9.  This warranty is given in lieu of any other warranty expressed or implied. 
 
10. MFJ Enterprises, Inc. reserves the right to make changes or improvements in design or manufacture 

without incurring any obligation to install such changes upon any of the products previously 
manufactured. 

 
11.  All MFJ products to be serviced in-warranty or out-of-warranty should be addressed to MFJ Enterprises, 

Inc., 300 Industrial Park Road, Starkville, Mississippi 39759, USA and must be accompanied by a letter 
describing the problem in detail along with a copy of your dated proof-of-purchase. 

 
12.  This warranty gives you specific rights, and you may also have other rights, which vary from state to state. 

 
 

Содержание MFJ-266

Страница 1: ...AUTION Read All Instructions Before Operating Equipment MFJ ENTERPRISES INC 300 Industrial Park Road Starkville MS 39759 USA Tel 662 323 5869 Fax 662 323 6551 COPYRIGHT 2011 MFJ ENTERPRISES INC C Mode...

Страница 2: ...gulations technical manuals documents positional handbooks or other official publications The copy of this manual provided to the customer will not be updated to reflect current data Customers using t...

Страница 3: ...Local Interference 7 5 2 Checking for Local Interference 7 5 3 Detector Linearity and Accuracy 7 5 4 Calibration Plane Error 8 5 5 Sign Ambiguity 8 6 0 Antenna Measurements 8 6 1 Antenna Connectors 9...

Страница 4: ...anual 2011 MFJ Enterprises Inc iv 7 8 Testing RF Transformers 14 7 9 Checking HF Baluns 15 7 10 Checking Coax Cable 15 8 0 Quick Guide to Analyzer Controls and Functions 16 9 0 Technical Assistance 9...

Страница 5: ...rates a 2 dBm RF signal that may be used to check receivers networks amplifiers and antenna patterns Operating range is HF 1 5 71 MHz in six HF bands VHF 85 185 MHz continuous coverage UHF 300 490 MHz...

Страница 6: ...cted or when the power switch is turned on Doing so could damage the unit Note that alkaline cells are not rechargeable and the analyzer has no built in charging circuitry When replacing old batteries...

Страница 7: ...y to explore the analyzer s basic operating features Begin by pressing the red PWR button on BAND MODE SELECT Up Down ANT Counter Bk Lite PWR ON OFF 3 1 Display Backlight When the analyzer comes on th...

Страница 8: ...Antenna jack the frequency is displayed in MHz Two gate speeds are available The default gate speed is Fast or Fg see the top right hand side of the display The fast gate provides 1 kHz resolution Th...

Страница 9: ...r and will be displayed on the screen see Frequency Selection Section 4 3 6 L C Measurement Mode The MFJ 266 may be used to measure the value of unknown capacitors and inductors To measure L C values...

Страница 10: ...HF VHF and UHF ranges Follow the up down position prompts shown in the table printed next to the buttons to select ranges A B BAND SELECT BAND A B HF X VHF UHF Counter X X means the VHF UHF switch ca...

Страница 11: ...werful enough to overcome any lack of front end selectivity and override stray pickup However a powerful transmitter located nearby could inject enough RF energy into the detector to disrupt readings...

Страница 12: ...nt impact when attempting to measure impedance values because of phase rotation in the cable In fact impedance readings can swing dramatically depending on the cable s electrical length and the severi...

Страница 13: ...impedance is specified by the antenna designer for matching purposes always use 50 Ohm cable of known quality when making up transmission lines and patch cables WARNING Never apply external dc voltag...

Страница 14: ...0 MHz 2 Use the analyzer to measure the present minimum SWR frequency ex 14 050 MHz 3 Divide the present frequency by the desired frequency ex 14 050 14 200 989 4 Multiply the present length by the re...

Страница 15: ...cable is multiple half wavelengths long As a practical matter unless you have an advanced working knowledge of transmission lines Smith charts and impedance matching theory it s best to ignore impeda...

Страница 16: ...ain a peak AC value V rms x 1 414 V p conversely V p x 707 V rms Also despite the display s 0 1 mV resolution readings will be approximations rather than precise values because of detector non lineari...

Страница 17: ...nknown inductor in uH along with the stimulus frequency where the measurement is being made You will not have full control over the stimulus frequency Band selection and the best accuracy is usually o...

Страница 18: ...find the free space 1 4 wavelength in feet L 246 f MHz 6 Divide 9 actual length by free space 1 4 wavelength to get the Velocity Factor VF 9 L Note that there is nothing magical about the 9 foot stub...

Страница 19: ...the input unbalanced side of the balun to the analyzer s antenna connector Connect a center tapped resistive load to the balanced side R1 R2 25 for 1 1 baluns R1 R2 100 for 4 1 baluns Using the Tune a...

Страница 20: ...de Screen Fg f 010 000 MHz REF FS 100mV Set Gate Speed Up Fast Down Slow Incoming Signal Frequency Readout Relative Field Strength Analyzer Mode Screen 50 j 0 50 1 0 Stimulus Frequency Band Frequency...

Страница 21: ...your problem is not solved by reading the manual you may call MFJ Technical Service at 662 323 0549 or the MFJ Factory at 662 323 5869 You will be best helped if you have your unit manual and all inf...

Страница 22: ...MFJ 266 HF VHF UHF Antenna Analyzer Instruction Manual 2011 MFJ Enterprises Inc 18 NOTES...

Страница 23: ...postage and handling 4 This warranty is NOT void for owners who attempt to repair defective units Technical consultation is available by calling 662 323 5869 5 This warranty does not apply to kits sol...

Страница 24: ...MFJ 266 Manual Version 1A Printed In U S A 300 Industrial Park Road Starkville MS 39759...

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