---
product_id: 673363102
title: "Comet GP-9N Dual-Band Base Antenna 2m/70cm 144/440 MHz High-Gain 17-Foot Fiberglass Vertical VHF/UHF Antenna with N-Type Connector for Amateur Ham Radio Base Stations"
brand: "comet"
price: "€ 513.13"
currency: EUR
in_stock: true
reviews_count: 1
category: "Comet"
url: https://www.desertcart.fi/products/673363102-comet-gp-9n-dual-band-base-antenna-2m-70cm-144
store_origin: FI
region: Finland
---

# High gain 8.5/11.9 dBi Dual-band 144/440 MHz Windproof up to 92 MPH Comet GP-9N Dual-Band Base Antenna 2m/70cm 144/440 MHz High-Gain 17-Foot Fiberglass Vertical VHF/UHF Antenna with N-Type Connector for Amateur Ham Radio Base Stations

**Brand:** comet
**Price:** € 513.13
**Availability:** ✅ In Stock

## Summary

> 📡 Elevate your signal, own the airwaves!

## Quick Answers

- **What is this?** Comet GP-9N Dual-Band Base Antenna 2m/70cm 144/440 MHz High-Gain 17-Foot Fiberglass Vertical VHF/UHF Antenna with N-Type Connector for Amateur Ham Radio Base Stations by comet
- **How much does it cost?** € 513.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/673363102-comet-gp-9n-dual-band-base-antenna-2m-70cm-144)

## Best For

- comet enthusiasts

## Why This Product

- Trusted comet brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Band Mastery:** Seamlessly switch between 2m and 70cm bands for ultimate communication flexibility.
- • **Elevate Your Reach:** 17-foot vertical design maximizes radiation efficiency for simplex and repeater operations—dominate your frequency.
- • **Plug & Play Precision:** Factory-tuned with low VSWR and N-type connector for effortless setup and minimal signal loss.
- • **Powerhouse Signal Gain:** Experience crystal-clear transmissions with industry-leading 8.5 dBi (VHF) and 11.9 dBi (UHF) gain.
- • **Built to Brave the Elements:** UV-stabilized fiberglass and rugged design withstand winds up to 92 MPH—your reliable outdoor partner.

## Overview

The Comet GP-9N is a premium 17-foot fiberglass vertical antenna engineered for amateur radio pros. Covering dual bands (144/440 MHz) with high gain (8.5/11.9 dBi), it delivers superior range and clarity. Built tough to endure harsh weather and high winds, it features a factory-tuned design with an N-type connector for seamless integration and minimal signal loss. Ideal for base stations, repeaters, and emergency networks, the GP-9N ensures you never miss a beat in your communication.

## Description

The Comet GP-9N Dual-Band Base Antenna is Comet’s highest-gain fiberglass vertical antenna for serious amateur radio operators who demand uncompromising signal strength and rugged outdoor reliability. Operating across the 2-meter (144 MHz) and 70-centimeter (440 MHz) amateur bands, this antenna provides exceptional gain—8.5 dBi on VHF and 11.9 dBi on UHF—ensuring strong, clear communication over extended distances. Built from high-grade fiberglass and precision-engineered aluminum hardware, the GP-9N is designed to survive harsh weather conditions including strong winds, rain, snow, and intense UV exposure. The 17-foot length and efficient phasing element design enhance radiation efficiency, extending both transmit and receive range for simplex and repeater operations. The antenna’s factory-tuned dual-band system offers broad frequency coverage with a low VSWR, eliminating the need for on-site adjustments. The N-type connector ensures excellent power handling and minimal signal loss, making it compatible with high-performance coaxial cables and modern VHF/UHF transceivers. Installation is straightforward with the included heavy-duty mounting hardware, providing a stable and secure setup for towers, masts, or rooftops. With its vertical polarization and 360-degree omnidirectional coverage, the Comet GP-9N is ideal for home base stations, repeaters, emergency networks, and amateur radio clubs. Engineered for professionals and enthusiasts alike, the GP-9N represents Comet’s commitment to precision, durability, and exceptional radio performance.

Review: Comet GP-9N Dual-Band Base Antenna 2m/70cm 144/440 MHz - I Have had my Comet GP-9N for about 3 years now & i Got to Say It Is a Great Antenna It Blows Most Others Out of The Water IMHO ! I Also Have Very High Quality Coax & Connectors (Very Important) it is up About 40Ft & i Regularly hear Others at and Over 100 Miles on Simplex (The 520) & Even Get Into a Fuw Repeaters n The Surrounding States a Lot Of Times! I Have ben into Radios for Close To 40 Years now & One Thing I Know as Fact..Any Good Station Has To Start With Really Good Antenna & Coax Then Get It N The Air As High as Ya Can Because Hight=Might Always Has & Always Will No Mater What Any One Else Says..Then an Only Then Figure Out The Radio Ya Want! Just a fyi..The Diamond X510HDM Is The Direct Comparison to This Comet GP-9N Both Are The Best Verticals Money Can Buy IMHO.. Again You Must Use Really Good Coax Not The Junk Ya Get On Here Or The Knock Off LMR-400 In My Experience About 99.99% of The Coax On Here Is Trash So Do Your Research & Buy The Best You Can Get/Afford And You To Will Be Very Pleased With The GP-9N Or The Diamond X510HDM Either One !

## Features

- Dual-Band Coverage – Operates on both 2M (144–148 MHz) and 70cm (440–450 MHz) bands, providing versatile communication options for amateur radio enthusiasts.
- Highest Gain Performance – Offers 8.5 dBi gain on 2M and 11.9 dBi gain on 70cm, ensuring strong signal reception and transmission over longer distances
- Durable Construction – Features a three-piece, heavy-duty, UV-stabilized fiberglass radome for long-lasting durability and reliable performance.
- High Power Handling – Supports up to 200 watts SSB and 100 watts FM, suitable for various base station communication needs.
- Weather-Resistant Design – Built to withstand winds up to 92 MPH, ensuring reliable operation in harsh conditions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJ1NMS22 |
| Best Sellers Rank | #1,062 in Two-Way Radio Antennas |
| Customer Reviews | 5.0 5.0 out of 5 stars (2) |
| Date First Available | September 26, 2024 |
| Item Weight | 19.96 pounds |
| Item model number | GP-9N |
| Manufacturer | Comet |
| Package Dimensions | 78.5 x 11 x 7.4 inches |

## Product Details

- **Antenna:** VHF/UHF Base Vertical
- **Brand:** Comet
- **Color:** white
- **Impedance:** 50 Ohms
- **Manufacturer:** Comet
- **Maximum Range:** 528 Feet
- **Product Dimensions:** 5"L x 0.5"W x 79"H

## Images

![Comet GP-9N Dual-Band Base Antenna 2m/70cm 144/440 MHz High-Gain 17-Foot Fiberglass Vertical VHF/UHF Antenna with N-Type Connector for Amateur Ham Radio Base Stations - Image 1](https://m.media-amazon.com/images/I/21pzaAJjpcL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comet GP-9N Dual-Band Base Antenna 2m/70cm 144/440 MHz
*by B***1 on November 21, 2025*

I Have had my Comet GP-9N for about 3 years now & i Got to Say It Is a Great Antenna It Blows Most Others Out of The Water IMHO ! I Also Have Very High Quality Coax & Connectors (Very Important) it is up About 40Ft & i Regularly hear Others at and Over 100 Miles on Simplex (The 520) & Even Get Into a Fuw Repeaters n The Surrounding States a Lot Of Times! I Have ben into Radios for Close To 40 Years now & One Thing I Know as Fact..Any Good Station Has To Start With Really Good Antenna & Coax Then Get It N The Air As High as Ya Can Because Hight=Might Always Has & Always Will No Mater What Any One Else Says..Then an Only Then Figure Out The Radio Ya Want! Just a fyi..The Diamond X510HDM Is The Direct Comparison to This Comet GP-9N Both Are The Best Verticals Money Can Buy IMHO.. Again You Must Use Really Good Coax Not The Junk Ya Get On Here Or The Knock Off LMR-400 In My Experience About 99.99% of The Coax On Here Is Trash So Do Your Research & Buy The Best You Can Get/Afford And You To Will Be Very Pleased With The GP-9N Or The Diamond X510HDM Either One !

## Frequently Bought Together

- GP-9N Original Comet 2m/70CM Dual Band 17ft Base with N-Type Connection End
- Mcbazel Surecom SW-102 Digital VHF/UHF 125-525Mhz Antenna Power & SWR Meter
- Authentic Genuine Nagoya NA-771 15.6-Inch Whip VHF/UHF (144/430Mhz) Antenna SMA-Female for BTECH and BaoFeng Radios

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-05*