Garmin

Garmin Extended Range Antenna f/Astro® 320

SKU: 41881 · UPC: 753759979959 · MPN: 010-10856-30
4.7 · 0 reviews
Authorized dealer30% off
$20.99
$29.99Save $9.00
or 4 payments of $5.24 with Affirm
Out of stock
Free shipping
Orders $500 or more
Free returns
Within 30 days
Same day shipping
Order before 3 PM (EST)
Ask anything
We're here to help
$20.99
02 · Overview

Garmin Extended Range Antenna f/Astro® 320 — Product description

Enhance your hunting adventures or training sessions with the Garmin Extended Range Antenna designed specifically for the Astro 320 system. This sleek, black 13-inch VHF antenna steps up your game by pushing tracking distances to impressive new levels, giving you peace of mind when your dogs are out in the field. Whether you're navigating dense woods, open prairies, or rugged terrain, this flexible upgrade ensures reliable signal strength without compromising on portability.

Unlock Superior Tracking Performance

Standard antennas work fine for closer quarters, but when your pack spreads out over miles, every signal counts. This extended range antenna boosts VHF performance to reach up to 9 miles when paired with compatible collars like the DC 40. Hunters swear by it for keeping tabs on fast-moving hounds during pursuits, while trainers appreciate the clarity it brings to off-leash exercises. It's not just about distance—it's about maintaining a rock-solid connection that lets you focus on the hunt rather than worrying about lost signals.

Seamless Compatibility and Easy Setup

Built for Garmin enthusiasts, this antenna integrates effortlessly with your Alpha or Astro systems and the DC 40 transmitter collar. No complex modifications needed—just swap it in, and you're ready to roll. Its flexible design withstands the bumps of fieldwork, mounting securely to keep your setup balanced and unobtrusive. At 13 inches long, it strikes the perfect balance between extended reach and maneuverability, so it won't snag on branches or weigh you down during long treks.

Real-World Benefits for Field Users

Imagine a crisp autumn morning: your dogs bolt after game, vanishing into the underbrush. With this antenna, you track their every turn with confidence, spotting clusters or solo runners before they get too far. Users report fewer dropouts in challenging environments like hilly areas or thick cover, where line-of-sight can falter. It's a smart investment for anyone serious about canine GPS, delivering Garmin's hallmark reliability in a compact package. Plus, its durable construction holds up to repeated exposure to mud, rain, and rough handling.

Tips for Maximizing Your Antenna's Potential

To get the most out of your setup:

  • Mount it high and clear of obstructions for optimal VHF reception.
  • Regularly clean contacts to prevent signal interference from dirt buildup.
  • Pair with fresh collar batteries for peak performance over long distances.
  • Test in your typical terrain before big outings to fine-tune expectations.

These simple habits can extend usability and keep your tracking sharp season after season.

Frequently Asked Questions

What systems is the Garmin Extended Range Antenna compatible with?

It works seamlessly with Alpha or Astro handheld units paired with the DC 40 transmitter collar, making it ideal for dog tracking setups.

How much additional range does this antenna provide?

It extends VHF tracking up to 9 miles, significantly improving performance in open or challenging terrains compared to standard antennas.

Is the antenna flexible and durable for outdoor use?

Yes, its flexible design resists bending or breaking during fieldwork, while the rugged build handles weather and rough handling.

How do I install the Extended Range Antenna on my Astro 320?

Simply attach it to the antenna port on your handheld unit—it's a plug-and-play upgrade with no tools required.

What color and size is the antenna?

It's black and measures 13 inches in length, blending discreetly with your gear while providing ample extension.

Can this antenna improve tracking in wooded areas?

Absolutely—it enhances signal strength to reduce dropouts, though best results come from pairing with clear mounting positions.

Does it come with any warranty?

It includes a limited one-year warranty covering manufacturing defects for reliable peace of mind.

Garmin make products that are engineered on the inside for life on the outside. We bring GPS navigation and wearable technology to the automotive, aviation, marine, outdoor and fitness markets. We believe every day is an opportunity to innovate and a chance to beat yesterday. We offer products with essential utility, leading-edge technologies, compelling features, and exceptional ease-of-use to create clear differentiators our customers appreciate and desire.

Garmin 101085630 Attributes

  • Compatibility: Alpha (R) Or Astro (R) And The DC ™ 40 Transmitter Collar
  • Range: Up To 9 Miles
  • Length: 13 Inch
  • Color: Black

Garmin 101085630 Features & Benefits

  • Features Flexible Property
  • Long-Range VHF Antenna Features Up To 9 Mile Increased Tracking Range Increased Tracking Range When Used With The Alpha (R) Or Astro (R) And The DC ™ 40 Transmitter Collar
  • Garmin Offer Products With Essential Utility
  • Awe-Inspiring Designs, Impeccable Quality, And Superior Reliability
  • Limited 1 Year Warranty

Garmin 101085630 Warranties


Extended Range Antenna
Part #: 010-10856-30

New Extended Range Antenna for your Astro 320.

With this extended range antenna, sports dogs can go farther. This 13-inch flexible long-distance VHF antenna is compatible with...
SKU: NVN-41881
MPN: 010-10856-30
UPC: 753759979959
03 · The numbers

Technical specifications

BrandGarmin
ModelGarmin Extended Range Antenna f/Astro® 320
SKU / MFR#41881

Set product metafields under specs.* to populate this table.

04 · Before you buy

Frequently asked questions

No questions yet. Got one? Drop us a line.

05 · Customer voices

Customer reviews