---
product_id: 399809393
title: "GP100 1/4 Wave Outdoor FM Transmitter Antenna 88-108MHz"
brand: "fmuser"
price: "€ 159.64"
currency: EUR
in_stock: true
reviews_count: 9
category: "Fmuser"
url: https://www.desertcart.sk/products/399809393-gp100-1-4-wave-outdoor-fm-transmitter-antenna-88-108mhz
store_origin: SK
region: Slovakia
---

# Ultra-low VSWR for stable transmission Omnidirectional 1/4 wave design Weatherproof aluminum build GP100 1/4 Wave Outdoor FM Transmitter Antenna 88-108MHz

**Brand:** fmuser
**Price:** € 159.64
**Availability:** ✅ In Stock

## Summary

> 📡 Elevate your FM broadcast game — don’t just transmit, dominate the airwaves!

## Quick Answers

- **What is this?** GP100 1/4 Wave Outdoor FM Transmitter Antenna 88-108MHz by fmuser
- **How much does it cost?** € 159.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/399809393-gp100-1-4-wave-outdoor-fm-transmitter-antenna-88-108mhz)

## Best For

- fmuser enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Power:** Includes 26FT TNC coaxial cable and TNC to BNC adapter for seamless, hassle-free installation.
- • **360° Signal Mastery:** Omnidirectional 1/4 wave ground plane ensures your broadcast reaches every corner effortlessly.
- • **Boost Your Broadcast:** 3dB gain amplifies your FM transmitter’s reach, delivering pristine audio clarity to a wider audience.
- • **Rock-Solid Stability:** Ultra-low VSWR (1:1) protects your gear and guarantees crystal-clear, uninterrupted transmission.
- • **Built to Brave the Elements:** Premium aluminum alloy and waterproof connectors keep your antenna performing rain or shine.

## Overview

The GP100 1/4 Wave Outdoor FM Transmitter Antenna is engineered for professional-grade FM broadcasting within 88-108MHz. Featuring an omnidirectional low-angle ground plane design, ultra-low VSWR for equipment safety, and a rugged weatherproof aluminum build, it delivers a solid 3dB gain to maximize signal reach. Ready out-of-the-box with a 26FT coaxial cable and adapters, it’s the go-to choice for small FM stations, businesses, and community broadcasters aiming for reliable, crystal-clear coverage.

## Description

desertcart.com: FMUSER GP100 1/4 Wave Outdoor FM Transmitter Antenna 88-108MHz | Omnidirectional 1/4 wave ground plane design. Sturdy aluminum build withstands outdoor weather for stable broadcasting : Electronics

Review: Great FM Broadcast Antenna - This antenna works! We tested SWR once assembled for our FM Frequency of 88.7 MHz and it was dead flat 1:1 SWR. Once connected to our ROLLS HR70 FM Transmitter we could drive down the road several businesses down either direction and hear our FM Broadcast signal very well. This test was done only while holding the antenna 6 ft high in our parking lot. If we were to place the FM Antenna higher, say 30 ft I'm am sure the FM Transmitted signal would increase even further away. Good solid construction. Easy to assemble. No brainer! I would highly recommend this FM Antenna to anyone wanting a good FM Broadcast FM Antenna for your Church, Business or School. It works well and SWR is flat on the frequency you assemble the FM Antenna for.
Review: PERFORMS BETTER THAN EXPECTED - This is an honest, non-solicited, non-compensated review of the FMUSER GP100 FM Transmitter Antenna as sold on desertcart. Before purchasing this item, I read reviews for this antenna from users on desertcart. But first, some brief info about my FM transmitter. It is a NIORFNIO NIODESKTOP –TB SERIES, 6W/15W unit. It came with a telescoping antenna mounted on a heavy metal base, intended to just sit on a flat surface. I modified this arrangement and mounted it on the back side of my house. The top of the antenna was about 2 feet lower than my roofline. I have several FM radios around the house and garage. I got reasonable reception within my home and the signal was just barely receivable in my car to the end of my block. My transmitter was then set to 97.5 MHz, a clear space in the FM band. I was broadcasting Holiday music in my neighborhood during the 2022 winter season. Sometime in early 2023 another strong transmitter was broadcasting on 97.5 MHz, so I abandoned that frequency. I sought out a different clear frequency, which I thought would be 101.1. (explained in next paragraph). I wasn’t getting the clarity or range, so I decided to purchase this new antenna. Upon arriving at my home, I was surprised that the whole system was delivered in a 3-inch x 3-inch, x 17-inch long cardboard box, and placed in a plastic bag mailer. I unpacked all the items as described in the instruction manual. Incidentally, some (early) reviewers complained that instructions were inadequate, or there were no instructions at all. Not the case with my purchase. The manual was fairly well written, with photographs, some even in color. Not explained in the manual was the purpose of the three 24-inch “rods” that extend out from the center, forming a sort of tripod. I’m no broadcast engineer, but I have to assume that they are part of the electro-mechanical characteristic of the antenna. Also not explained was the reason for selecting and installing the correct “frequency bar”. Again, I’d guess these are some sort of band-pass filters to ensure that only the frequency of your transmitter gets through to the antenna, ensuring a clean broadcast. IMPORTANT TIP: Before completely assembling your antenna, make sure you determine a clear frequency in your neighborhood so that you will select the correct “frequency bar”. Initially I set my transmitter to 101.1 MHz, but later found out that there was already a commercial broadcast there. I had a contractor install my antenna on my roof. Once you install the desired frequency bar, you wouldn’t want to have to disassemble the unit and change the bar to your new frequency. To address one reader’s concern about the sharp edge at the bottom of the mast where the coax exits—to extend the mast to mount the antenna to my chimney, I purchased some 1-inch (ID) PVC and placed it at the end of the supplied mast. It helped to get the antenna higher and allowed the three rods to clear the chimney. I also purchased some tubular foam used to insulate copper water pipes. I wrapped the foam insulation around the coax where it exits the 1-inch PVC. OPERATION: I bumped the frequency up to 101.3 and it made a world of difference. Got in my car and had a strong clear signal all the way to my grocery store. According to Google Maps, the Line-Of-Sight distance is about 7,500 feet, or about 1 ½ miles. This through hilly terrain.

## Features

- Omnidirectional Coverage:Features a low-angle 1/4 wave ground plane design for superior omnidirectional radiation.Perfect for small FM radio stations, ensuring broad signal reach even on shorter masts.
- Ultra-Low VSWR: Engineered for the 88-108MHz frequency range, this antenna maintains an incredibly low VSWR. This protects your equipment, reduces failure rates, and ensures stable transmission.
- Weatherproof Build: Constructed from premium aluminum alloy with waterproof connectors. Designed to withstand harsh outdoor elements while providing long-lasting, reliable performance in any climate.
- Enhanced Signal Strength: Delivers a solid 3dB gain to significantly boost your transmitter's coverage. Experience unmatched audio clarity and reach a wider audience with crystal-clear sound quality.
- Easy Setup & Compatibility:Includes a 26FT TNC coaxial cable and TNC to BNC adapter.Installs in minutes and seamlessly connects to most FM broadcast transmitters with TNC or BNC female interfaces.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09NDPY4JG |
| Antenna | Radio |
| AntennaDescription | Radio |
| Best Sellers Rank | #924 in Radio Antennas |
| Brand | fmuser |
| Color | 1 |
| Customer Reviews | 4.6 out of 5 stars 118 Reviews |
| Impedance | 50 ohm |
| Item Dimensions L x W x H | 3"L x 3"W x 17"H |
| Item Highlight | Omnidirectional 1/4 wave ground plane design. Sturdy aluminum build withstands outdoor weather for stable broadcasting |
| Manufacturer | FMUSER |
| Maximum Range | 500 feet |
| Mfr Part Number | GP100 |
| Model Number | GP100 |
| Number of Channels | 1 |
| Number of Items | 1 |
| UPC | 631473876979 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year |

## Product Details

- **Antenna:** Radio
- **Brand:** fmuser
- **Color:** Black
- **Impedance:** 50 Ohms
- **Manufacturer:** fmuser
- **Maximum Range:** 300 Feet
- **Number of Channels:** 1
- **Number of Items:** 1
- **Product Dimensions:** 3"L x 3"W x 17"H
- **UPC:** 631473876979

## Images

![GP100 1/4 Wave Outdoor FM Transmitter Antenna 88-108MHz - Image 1](https://m.media-amazon.com/images/I/51IQgdQ6ptL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great FM Broadcast Antenna
*by D***S on November 19, 2024*

This antenna works! We tested SWR once assembled for our FM Frequency of 88.7 MHz and it was dead flat 1:1 SWR. Once connected to our ROLLS HR70 FM Transmitter we could drive down the road several businesses down either direction and hear our FM Broadcast signal very well. This test was done only while holding the antenna 6 ft high in our parking lot. If we were to place the FM Antenna higher, say 30 ft I'm am sure the FM Transmitted signal would increase even further away. Good solid construction. Easy to assemble. No brainer! I would highly recommend this FM Antenna to anyone wanting a good FM Broadcast FM Antenna for your Church, Business or School. It works well and SWR is flat on the frequency you assemble the FM Antenna for.

### ⭐⭐⭐⭐⭐ PERFORMS BETTER THAN EXPECTED
*by J***N on October 18, 2023*

This is an honest, non-solicited, non-compensated review of the FMUSER GP100 FM Transmitter Antenna as sold on amazon. Before purchasing this item, I read reviews for this antenna from users on amazon. But first, some brief info about my FM transmitter. It is a NIORFNIO NIODESKTOP –TB SERIES, 6W/15W unit. It came with a telescoping antenna mounted on a heavy metal base, intended to just sit on a flat surface. I modified this arrangement and mounted it on the back side of my house. The top of the antenna was about 2 feet lower than my roofline. I have several FM radios around the house and garage. I got reasonable reception within my home and the signal was just barely receivable in my car to the end of my block. My transmitter was then set to 97.5 MHz, a clear space in the FM band. I was broadcasting Holiday music in my neighborhood during the 2022 winter season. Sometime in early 2023 another strong transmitter was broadcasting on 97.5 MHz, so I abandoned that frequency. I sought out a different clear frequency, which I thought would be 101.1. (explained in next paragraph). I wasn’t getting the clarity or range, so I decided to purchase this new antenna. Upon arriving at my home, I was surprised that the whole system was delivered in a 3-inch x 3-inch, x 17-inch long cardboard box, and placed in a plastic bag mailer. I unpacked all the items as described in the instruction manual. Incidentally, some (early) reviewers complained that instructions were inadequate, or there were no instructions at all. Not the case with my purchase. The manual was fairly well written, with photographs, some even in color. Not explained in the manual was the purpose of the three 24-inch “rods” that extend out from the center, forming a sort of tripod. I’m no broadcast engineer, but I have to assume that they are part of the electro-mechanical characteristic of the antenna. Also not explained was the reason for selecting and installing the correct “frequency bar”. Again, I’d guess these are some sort of band-pass filters to ensure that only the frequency of your transmitter gets through to the antenna, ensuring a clean broadcast. IMPORTANT TIP: Before completely assembling your antenna, make sure you determine a clear frequency in your neighborhood so that you will select the correct “frequency bar”. Initially I set my transmitter to 101.1 MHz, but later found out that there was already a commercial broadcast there. I had a contractor install my antenna on my roof. Once you install the desired frequency bar, you wouldn’t want to have to disassemble the unit and change the bar to your new frequency. To address one reader’s concern about the sharp edge at the bottom of the mast where the coax exits—to extend the mast to mount the antenna to my chimney, I purchased some 1-inch (ID) PVC and placed it at the end of the supplied mast. It helped to get the antenna higher and allowed the three rods to clear the chimney. I also purchased some tubular foam used to insulate copper water pipes. I wrapped the foam insulation around the coax where it exits the 1-inch PVC. OPERATION: I bumped the frequency up to 101.3 and it made a world of difference. Got in my car and had a strong clear signal all the way to my grocery store. According to Google Maps, the Line-Of-Sight distance is about 7,500 feet, or about 1 ½ miles. This through hilly terrain.

### ⭐⭐⭐⭐⭐ This thing is no joke! Increased my range 4x to 5x !
*by M***O on August 28, 2025*

I have a tiny 500 milliwatt FM transmitter (a CZE-05B). It came with a few feet of coax and an external magnet-mount "rubber ducky" antenna. I placed that antenna about 8 feet above ground, and drove around my neighborhood checking the range. It did pretty well and only faded out on the edges of my subdivision. I was able to hear the transmitter about a half mile in every direction. I was pretty pleased with the original range, but I wanted to see if I could squeeze a little more range out of the budget transmitter, so I picked up this antenna. I was STUNNED. I assembled the antenna which was incredibly simple. The antenna came with well written, easy to follow instructions. After assembly, I propped it up on top of a 7-foot latter and secured it in place for testing with some small bricks. Once it was situated on top of the latter, I connected it to the transmitter, put on some music, and got in the car to see if I had wasted my money. I absolutely had NOT. It was amazing. The half-watt transmitter now has a range of 2.5 to 3 miles in every direction! Unbelievable! The antenna is relatively small, and can be broken down easily and quickly for portable use if you have that need. It's well built from high quality aluminum parts, and includes 5 different screw-on antenna extensions to tune the antenna to resonance at a frequency close to the one you broadcast on. Read the instructions once, and you're good to go from then on. This was MASSIVE bang for my buck. I'm still kind of blown away with how far I can now drive and hear that cheap little half-watt FM transmitter!

## Frequently Bought Together

- FMUSER GP100 FM Transmitter Antenna Outdoor, 1/4 Wave Professional GP Antenna for 87-108mhz 0.5w-100w FM Broadcast Transmitter, Waterproof FM Antenna with 26FT TNC/BNC Cable
- NIORFNIO 15W Fm Transmitter - Bluetooth Wireless Stereo Broadcasting Range 87-108mhz Transmitter, Used in Churches, Cars, Shopping Malls, Lecture Halls, Private Radio Stations
- DHT Electronics RF coaxial Coax Adapter TNC Male to BNC Female

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-10-19*