Garmin

Garmin DC™ 40 VHF Antenna

SKU: 39325 · UPC: 753759104429 · MPN: 010-10856-20
4.7 · 0 reviews
Authorized dealer25% off
$14.99
$19.99Save $5.00
or 4 payments of $3.74 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
$14.99
02 · Overview

Garmin DC™ 40 VHF Antenna — Product description

Enhance the reliability of your dog's position updates during long hunts or training sessions with the Garmin DC™ 40 VHF Antenna. Designed specifically as an upgrade for the DC 40 dog-tracking collar, this antenna boosts VHF signal strength, helping you maintain a solid connection to your Astro® system even in challenging environments like dense woods or rugged terrain.

Why Upgrade to the DC 40 VHF Antenna?

Dog handlers and hunters often face signal dropouts when collars are far off or obstructed by foliage. This antenna addresses that by optimizing VHF transmission, potentially extending your effective tracking range without needing to reposition constantly. It's a simple yet effective way to ensure every moment in the field counts, keeping you informed about your dog's location, direction, and speed with greater accuracy.

Key Features for Reliable Performance

  • Targeted VHF Optimization: Fine-tuned for the DC 40 collar's VHF frequencies to cut through interference.
  • Rugged Build: Withstands harsh outdoor conditions, from rain to rough brush, matching the durability of Garmin's field gear.
  • Compact and Low-Profile: Adds minimal bulk to your dog's collar, preserving comfort and mobility during extended runs.
  • Seamless Integration: Plugs directly into the DC 40, requiring no additional tools or modifications.

Real-World Benefits for Dog Trackers

Imagine navigating a thicket-filled valley knowing your pointer or retriever's signal won't fade at critical moments. Users report fewer lost connections in varied landscapes, making it ideal for upland bird hunting, waterfowl retrieves, or off-leash training in expansive areas. This antenna doesn't just extend range—it builds confidence, letting you focus on the hunt rather than the tech.

Quick Installation Guide

  1. Power off the DC 40 collar and locate the VHF port.
  2. Align the antenna connector and gently twist to secure—it's a secure, weatherproof fit.
  3. Power on the collar and pair with your Astro® device to verify the upgraded signal.
  4. Test in an open area before heading into cover for baseline performance.

Pro tip: Regularly inspect the connection for dirt or wear to maintain peak signal integrity, especially after muddy fieldwork.

Maintenance Tips for Longevity

Keep your antenna performing like new by rinsing with fresh water after wet hunts and storing it dry. Avoid bending the cable sharply, and if signal dips occur, reseat the connection first—most issues resolve without further tweaks. Its robust construction means it handles years of active use when cared for properly.

Perfect for Serious Handlers

Whether you're a competitive field trial enthusiast or a weekend woodsman, this VHF antenna elevates your setup from good to great. It complements the DC 40's GPS precision with stronger VHF comms, creating a more robust tracking ecosystem tailored to dynamic canine pursuits.

Frequently Asked Questions

What does the Garmin DC 40 VHF Antenna improve?

It strengthens VHF signal transmission from the DC 40 collar to your Astro device, reducing dropouts and enhancing tracking reliability in tough terrain.

Is this antenna compatible only with the DC 40 collar?

Yes, it's engineered specifically for the DC 40 dog-tracking collar for optimal performance.

How do I install the DC 40 VHF Antenna?

Simply power off the collar, connect the antenna to the VHF port with a twist-lock motion, and power back on to test.

Will this antenna extend the GPS range of my collar?

It primarily boosts VHF communication range for position updates to the Astro handheld, complementing the collar's built-in GPS.

Can the antenna handle wet or dirty conditions?

Absolutely—its rugged, weather-resistant design is built for outdoor hunting and training environments.

Does adding the antenna affect my dog's comfort?

No, its compact size keeps the collar lightweight and unobtrusive, ensuring full mobility.

What if the signal still weakens after installation?

Check connections for debris, ensure fresh batteries in both collar and Astro, and test in open areas to isolate environmental factors.

DC™ 40 VHF Antenna

Use Garmin's VHF antenna with your DC 40 dog-tracking collar for better tracking with your Astro®.

Compatible Devices:
  • DC™ 40 Dog Tracking Collar


The DC 40 VHF antenna uses Garmin's VHF antenna with the DC 40 dog tracking collar to better track the Astro. Compatible equipment: DC 40 dog tracking collar warning: this...
SKU: NVN-39325
MPN: 010-10856-20
UPC: 753759104429
03 · The numbers

Technical specifications

BrandGarmin
ModelGarmin DC™ 40 VHF Antenna
SKU / MFR#39325

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