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Get A Portable Twin-lead 20-meter Dipole - W1npp

By Rich Wadsworth, KF6QKI A Portable TwinLead 20Meter Dipole With its relatively low loss and no need for a tuner, this resonant portable dipole for 14.060 MHz is perfect for portable QRP. first attempt.

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How to fill out the A Portable Twin-Lead 20-Meter Dipole - W1npp online

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  1. Click ‘Get Form’ button to obtain the document and open it in the online editor.
  2. Read the introductory remarks about the portable dipole. This section will provide important context regarding the performance and specifications of the antenna design.
  3. Fill in your personal details where required. This may include your name, contact information, and call sign if applicable. Ensure that all entries are accurate.
  4. Provide information regarding your experience with digital antennas or similar equipment. This may include details about previous projects or antennas you have constructed.
  5. Review the specifications of the Portable Twin-Lead 20-Meter Dipole. Document any necessary configurations or adjustments specific to your needs, based on the advice provided.
  6. Finalize any additional notes or comments about the dipole design implementation you plan to undertake, including but not limited to materials and tools required.
  7. Once all fields are completed, review your entries for accuracy. This may include double-checking measurements, configurations, and personal information.
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So, what does a 40m dipole consist of? Well, 66 feet of wire, split in the middle. You can use pretty much anything for wire as long as it's a good conductor. I don't recommend house-wiring type wire because that's soft-drawn copper and will stretch, but if that's what you've got, by all means use it.

Example — 20 meters: If you are operating on 14.5 MHz, dividing 14.5 into 468 gives 32.28 feet over all. To find the half wave, dividing 32.28 by 2 gives 16.14 feet for each leg.

A 10 meter dipole would be around 16 ft.

If you cut two wires that are 1/4 of a wavelength long for the frequency of 14.250 mHz, and attach one of these to the braided shield of a coax cable, and the other to the center conductor of coax cable, you have made a half-wave dipole antenna. Convert it to feet, and you'll find each leg is 17.25′ in length.

Resonant half-wave dipoles range in size from about 16 feet for the 10-meter band (28-29.7 MHz) to 260 feet for the 160-meter band (1.8-2 MHz).

Hi Peter, From my experience, getting your antenna feedpoint up closer to 33 feet (~1 wavelength on 10M) will likely improve both reception and transmission (all things being equal).

Strictly speaking, a balun isn't necessary on a dipole – your antenna can function perfectly fine without one. However, a balun on a dipole is helpful for providing a smoother transition between a balanced antenna and an unbalanced feed line. They can also help to transform impedance for a superior performance overall.

A half-wave dipole for 11 meter is only 17.1 feet long for the antenna to be resonant.. Not much danger of the wire stretching and throwing the SWR off at that length. Now, if you were talking a 160 meter antenna at 260 feet, then you might want to use hard drawn wire, but few hams do.

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© Copyright 1997-2025
airSlate Legal Forms, Inc.
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Form Packages
Adoption
Bankruptcy
Contractors
Divorce
Home Sales
Employment
Identity Theft
Incorporation
Landlord Tenant
Living Trust
Name Change
Personal Planning
Small Business
Wills & Estates
Packages A-Z
Form Categories
Affidavits
Bankruptcy
Bill of Sale
Corporate - LLC
Divorce
Employment
Identity Theft
Internet Technology
Landlord Tenant
Living Wills
Name Change
Power of Attorney
Real Estate
Small Estates
Wills
All Forms
Forms A-Z
Form Library
Customer Service
Terms of Service
Privacy Notice
Legal Hub
Content Takedown Policy
Bug Bounty Program
About Us
Blog
Affiliates
Contact Us
Delete My Account
Site Map
Industries
Forms in Spanish
Localized Forms
State-specific Forms
Forms Kit
Legal Guides
Real Estate Handbook
All Guides
Prepared for You
Notarize
Incorporation services
Our Customers
For Consumers
For Small Business
For Attorneys
Our Sites
US Legal Forms
USLegal
FormsPass
pdfFiller
signNow
airSlate WorkFlow
DocHub
Instapage
Social Media
Call us now toll free:
+1 833 426 79 33
As seen in:
  • USA Today logo picture
  • CBC News logo picture
  • LA Times logo picture
  • The Washington Post logo picture
  • AP logo picture
  • Forbes logo picture
© Copyright 1997-2025
airSlate Legal Forms, Inc.
3720 Flowood Dr, Flowood, Mississippi 39232