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Summary of Contents for MFJ 1796
- Page 1 WARC Band Vertical Antenna Model MFJ-1796 INSTRUCTION MANUAL CAUTION: 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 2006 MFJ ENTERPRISES, INC. VERSION 0A...
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Page 2: Vertical Antenna
MFJ-1796W WARC Band Vertical Antenna MFJ-1796W 60 Meter Capacitance Spokes (8) Vertical Antenna & Loading Coil 30 Meter (4) 1 7 Meter (4) 1 2 Meter (4) Always Follow Assembly Instructions!! Balun Mounting Bracket Coax Connector Assembly with Drip Loop... -
Page 3: Choosing A Location For The Antenna
1/2 wave (in this example 88' tall) antenna. MFJ solved these problems by combining efficient end loading with a balanced center feedpoint design. The result is a physically small vertical antenna that gives good performance and does not require any type of RF ground system. -
Page 4: Tools And Time Required For Assembly
1 and 1-1/2" OD. The use of soft or thin wall masts is not recommended The MFJ-1796W will perform quite well even at ground level, which means the lower capacitance hat should be at least 5 ft above ground level on a short rigid mast. However, the antenna installation MUST be protected (with non-metallic fencing) to provide personal safety and to prevent damage to the antenna itself. -
Page 5: Safety Precautions
TV mast sections, galvanized iron pipe, or heavy duty rigid conduit.) [ ] Quality low-loss 50-Ohm coax with a PL-259 from antenna to transmitter. [ ] Either a SWR meter or Analyzer (MFJ-207 or MFJ-249) SAFETY PRECAUTIONS: WARNING! You can be killed if the antenna, feedline, or the equipment used to install the antenna accidentally contacts any utility lines. - Page 6 MFJ-1796W WARC Band Vertical Antenna Warning: Do not tighten the screws that connect the loading coil terminal lugs to the capacitance hats or you will BREAK the fiberglass form. If the terminal lugs loosen tighten the NUT down on the lug.
- Page 7 MFJ-1796W WARC Band Vertical Antenna [ ] 10. Insert the fiberglass center insulator into the bottom element and insert a 1/4" x 7/16" head bolt with a lock washer through the hole. Thread a 1/4" x 7/16" nut on the other end.
- Page 8 MFJ-1796W WARC Band Vertical Antenna [ ] 22. Mount the antenna in it's permanent location. Slight re-tuning may be necessary. FREQUENCY AND SWR ADJUSTMENT This antenna covers wider frequency ranges on the higher bands, and narrower segments on the lower frequency bands. The 60 meter band has the narrowest range of operation (approximately 20 KHz) and is the most sensitive to adjustments.
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Page 9: Grounding Considerations
MFJ-1796W WARC Band Vertical Antenna The following tips will help you obtain an even better SWR on 5.3 MHz than the tuning method used on other bands. On 60 meters the lowest SWR is usually not obtained with the top and bottom loading spokes adjusted to the same frequency. -
Page 10: Maintenance
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 information on your station handy so you can answer any questions the technicians may ask. -
Page 11: Full 12-Month 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. - Page 12 MFJ ENTERPRISES, INC. MFJ-1796W Manual 300 Industrial Park Road Version 0A Starkville, MS 39759 Printed In U.S.A.
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