All departments - including shipping - will be closed on Friday, July 1, 2022 in celebration of Canada Day! Regular business hours resume July 2, 2022. Dismiss

Skip to content
  • canada canada
    100%
    Canadian

    All prices are in CDN dollars.

  • shipping shipping
    Secure, Same Day
    Shipping!
  • contact shipping
    Call Us
    Toll Free at

    1-800-585-9331

  • canada canada
    100%
    Canadian

    All prices are in CDN dollars.

  • shipping shipping
    Secure, Same Day
    Shipping!
  • contact shipping
    Call Us
    Toll Free at

    1-800-585-9331

GPS CentralGPS Central
  • Login
  • Cart / $214.00 1
      • × Cushcraft ARX-2B Monoband Vertical Ringo II Antenna 1 × $214.00

      Subtotal: $214.00

      View cartCheckout

  • 1

    Cart

    • × Cushcraft ARX-2B Monoband Vertical Ringo II Antenna 1 × $214.00

    Subtotal: $214.00

    View cartCheckout

  • New Arrivals
  • GPS Units
    • Automotive GPS
    • Aviation GPS
    • GNSS & GIS
    • GPS/OEM Sensors & Receivers
    • Handhelds
    • Fitness & Wearables
      • Cycling
      • Golfing
      • Running
      • Smartwatches
    • GPS Accessories
      • Antennas
      • Batteries
      • Cases & Covers
      • Data Cards
      • Maps & Charts
      • Mounts
      • Power Supplies
      • Traffic & XM Receivers
  • Marine
    • Marine GPS & Navigation
      • Autopilots
      • Chartplotters
      • Chartplotters & Sonar Combos
      • Handhelds
      • Fishfinders
    • Charts
    • Marine Accessories
      • Marine Cameras
      • Marine Instruments & Sensors
    • Ice Fishing
      • Ice Augers
      • Ice Fishing Bundles
    • Radars
    • Remote Sounders & Black Boxes
    • Transducers
    • Trolling Motors
  • Tracking
    • Asset
    • Vehicle
    • Personal
      • Personal Location Beacons (PLBs)
      • Satellite Messengers
  • Radios
    • 2-Way Radios
    • Amateur Radios
    • Avionic Radios
    • CB Radios
    • Commercial Radios
    • Marine Radios
    • Scanners
    • Shortwave
    • Weather Radios
    • Radio Accessories
      • Amateur Accessories
      • Amateur Antennas
      • Amateur Books
      • CB Antennas
      • CB Accessories
  • Metal Detecting
    • Metal Detectors
      • Gold
      • Treasure
      • Security
    • Metal Detecting Accessories
      • Coils, Coil Covers & Skidplates
      • Digging Tools & Scoops
      • Gold Panning Tools
      • Headphones
      • Pinpointers
      • Rods & Shafts
    • Rentals
      • Handheld Security
      • Walk Throughs
  • Outdoor
    • Batteries
    • Binoculars
    • Cameras
    • Compasses
    • Dog Training
    • Hunting Scopes & Sights
    • Motorsport Headsets
    • Satellite Phones
    • Signal Boosters
    • Survival Products
    • Weather Stations & Products
  • On Sale!
    • Bundles
    • Clearance
    • Demo
    • Refurbished
    • Rebates
Home / Radios / Radio Accessories / Amateur Antennas
View cart “Cushcraft ARX-2B Monoband Vertical Ringo II Antenna” has been added to your cart.

Alpha Delta HF SWL Sloper Antenna

MPN: DX-SWL
MPN:

$185.00

Out of Stock (On Order)

SKU: 7691 Category: Amateur Antennas
Browse Another Category
  • New Arrivals
  • Automotive GPS
  • Aviation GPS
  • Fitness & Wearables
  • GNSS & GIS
  • GPS Accessories
  • GPS/OEM Sensors & Receivers
  • Handhelds
  • Marine
  • Tracking
  • Radios
    • 2-Way Radios
    • Amateur Radios
    • Avionic Radios
    • CB Radios
    • Commercial Radios
    • Marine Radios
    • Scanners
    • Shortwave Radios
    • Radio Accessories
      • Amateur Accessories
      • Amateur Antennas
        • Whips & Coils
        • Analyzers
        • Base
        • HT & Scanner
        • Mobile
      • Amateur Books
      • CB Antennas
      • CB Accessories
    • Weather Radios
  • Metal Detecting
  • Outdoors
  • On Sale
  • Gift Certificates
  • Warranties
  • Discontinued
  • Description
  • Additional information
  • Product Guides & Documentation
  • Reviews (0)

Alpha Delta HF SWL Sloper Antenna Features:

  • Assembled Wire Antenna: Yes
  • Wire Antenna Type: Multi-band, resonant
  • Antenna Power Rating: 1,000 W
  • Wire Antenna Length: 60.00 ft.
  • Antenna Tuner Required: No
  • Feedline Connection Type: UHF female, SO-239
  • Minimum Recommended Feedpoint Height: 25.00 ft.
  • Wire Gauge: 12-gauge
  • Center Insulator Maximum Rope Size: 0.313 in.
  • Wire Antenna Weight: 4.50 lbs.
  • Notes: May be operated on many amateur bands with a wide range tuner.

Additional Information

Wire Antenna Band Wire Antenna Frequency
120 meters 2.3 MHz
90 meters 3.2 MHz
60 meters 4.7 MHz
49 meters 5.9 MHz
41 meters 7.2 MHz
31 meters 9.5 MHz
25 meters 11.6 MHz
21 meters 13.6 MHz
19 meters 15.1 MHz
16 meters 17.5 MHz
13 meters 21.5 MHz

 

Alpha Delta HF SWL Sloper Antennas are a very unique and very effective adaptation of existing antenna theory. They operate as quarter wave slopers, which means that the wires are one quarter wavelength long; or multiples of a quarter-wave on each frequency band.

These SWL Sloper Antennas are designed to cover: Medium Wave (0.5 to 1.6 MHz) and the 120, 90, 60, 49, 41, 31, 25, 21, 19, 16 and 13 meter SWL shortwave bands.

Compared to a standard half wave dipole, the other quarter wave of these antennas, which is necessary for performance and the proper feed point impedance, is made up of the “Down-Lead” wire, which is attached.

With a quarter wave sloper, the center conductor of the coax is attached to the radiating wires and the shield of the coax is attached to the down lead. Standard SO-239 (UHF female) connectors are provided on the ALP-DX-SWL for this purpose.

Excellent performance is attained with installations of only 20 to 40 ft. in height. Historically, and by design, quarter wave sloper antennas are known to be excellent DX and long haul antennas. The current lobes, which define the major radiation characteristics of an antenna, are up high at the feed point and are not as subject to attenuation as a vertical antenna, whose current lobe is at ground level.

At an Alpha Delta location, side by side comparisons between the ALP-DX-SWL and a 32 ft. commercial vertical with 18 radials show the DX-SWLs to be as much as 10 dB stronger into Europe and Africa. Since a sloper has an optimized low-angle radiation pattern for peak DX performance, it will greatly outperform a dipole mounted at the same height. Exceptional for those really distant weak signal DX stations! The difference can be phenomenal.

HF sloper antennas come fully assembled and use stainless steel hardware, UV-protected coils and components, and 12 AWG wire. They are designed to survive severe-weather environments. Insulators and support rope are included.

Weight 4.532 lbs
Dimensions 11 × 9 × 3 in
Brand

Alpha Delta

Manufacturer Part Number DX-SWL

Product Guides & Documentation

Alpha Delta DX-SWL installation instructions

Reviews

There are no reviews yet.

Be the first to review “Alpha Delta HF SWL Sloper Antenna” Cancel reply

You must be logged in to post a review.

Related products

Amateur Antennas

Comet SMA-24 Antenna

$35.00
Add to cart

Amateur Antennas

Diamond Antenna A502HB

$180.00
Add to cart

Amateur Antennas

Comet HT-224 Antenna

$55.00
Add to cart

Amateur Antennas

Diamond Antenna CR8900A

$165.00
Add to cart

Amateur Antennas

Cushcraft A6270-13S Triband Antenna

$460.00
Add to cart

Amateur Antennas

Cushcraft A-4S Triband 4 Element Beam Antenna

$950.00
Add to cart

Amateur Antennas

Comet SS-680SB & SS-680SBNMO Antennas

$63.00 – $96.00
Select options

Select a Model to See Availability

Amateur Antennas

Standard Horizon Rubber Duck Antenna

$22.00
Add to cart

Retail Store

#8, 711 48th Ave SE,
Calgary, AB T2G 4X2

Store Hours

Mon-Fri: 9am - 5pm MST

Saturday: 9am - 2 pm MST

Sunday: CLOSED

Contact Us

Phone: 403-239-1400

Mon-Fri: 9am - 5pm MST

Email:

sales@gpscentral.ca

bluefox@gpscentral.ca

FAQs

Contact Us

About Us

About Us

Price & Customer Service Policy

Testimonials

Our Blog

Sign up for our Newsletter!

Shipping & Payments

Ordering &
Payment

Shipping Info

Return Policy

Extended Warranties

Gift Cards

Your Account

Sign In

View Cart

Return Authorization

Would you like to add a warranty? Adding a warranty can help protect your investment.

Yes, please add a warranty ().

No thanks, I'll take the risk.

security
  • Terms of Use
  • Privacy Policy
  • ©GPS Central 2001 - 2022
  • New Arrivals
  • GPS Units
    • Automotive GPS
    • Aviation GPS
    • GNSS & GIS
    • GPS/OEM Sensors & Receivers
    • Handhelds
    • Fitness & Wearables
      • Cycling
      • Golfing
      • Running
      • Smartwatches
    • GPS Accessories
      • Antennas
      • Batteries
      • Cases & Covers
      • Data Cards
      • Maps & Charts
      • Mounts
      • Power Supplies
      • Traffic & XM Receivers
  • Marine
    • Marine GPS & Navigation
      • Autopilots
      • Chartplotters
      • Chartplotters & Sonar Combos
      • Handhelds
      • Fishfinders
    • Charts
    • Marine Accessories
      • Marine Cameras
      • Marine Instruments & Sensors
    • Ice Fishing
      • Ice Augers
      • Ice Fishing Bundles
    • Radars
    • Remote Sounders & Black Boxes
    • Transducers
    • Trolling Motors
  • Tracking
    • Asset
    • Vehicle
    • Personal
      • Personal Location Beacons (PLBs)
      • Satellite Messengers
  • Radios
    • 2-Way Radios
    • Amateur Radios
    • Avionic Radios
    • CB Radios
    • Commercial Radios
    • Marine Radios
    • Scanners
    • Shortwave
    • Weather Radios
    • Radio Accessories
      • Amateur Accessories
      • Amateur Antennas
      • Amateur Books
      • CB Antennas
      • CB Accessories
  • Metal Detecting
    • Metal Detectors
      • Gold
      • Treasure
      • Security
    • Metal Detecting Accessories
      • Coils, Coil Covers & Skidplates
      • Digging Tools & Scoops
      • Gold Panning Tools
      • Headphones
      • Pinpointers
      • Rods & Shafts
    • Rentals
      • Handheld Security
      • Walk Throughs
  • Outdoor
    • Batteries
    • Binoculars
    • Cameras
    • Compasses
    • Dog Training
    • Hunting Scopes & Sights
    • Motorsport Headsets
    • Satellite Phones
    • Signal Boosters
    • Survival Products
    • Weather Stations & Products
  • On Sale!
    • Bundles
    • Clearance
    • Demo
    • Refurbished
    • Rebates
  • Login
  • Newsletter
  • canada canada
    100%
    Canadian

    All prices are in CDN dollars.

  • shipping shipping
    Secure, Same Day
    Shipping!
  • contact shipping
    Call Us
    Toll Free at

    1-800-585-9331

Login

Lost your password?

Register

A password will be sent to your email address.

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.