---
product_id: 205330663
title: "- Shark Antennas S-F20 Mono Band HF 20 Meter Mobile Vertical Antenna with 3/8x24 Threads, Handles 250W Max"
brand: "gigaparts"
price: "43487 Ft"
currency: HUF
in_stock: true
reviews_count: 8
url: https://www.desertcart.hu/products/205330663-shark-antennas-s-f20-mono-band-hf-20-meter-mobile
store_origin: HU
region: Hungary
---

# 250W max power handling 44-inch fiberglass mast 3/8x24 thread base - Shark Antennas S-F20 Mono Band HF 20 Meter Mobile Vertical Antenna with 3/8x24 Threads, Handles 250W Max

**Brand:** gigaparts
**Price:** 43487 Ft
**Availability:** ✅ In Stock

## Summary

> 📡 Elevate your mobile HF game with Shark precision and power!

## Quick Answers

- **What is this?** - Shark Antennas S-F20 Mono Band HF 20 Meter Mobile Vertical Antenna with 3/8x24 Threads, Handles 250W Max by gigaparts
- **How much does it cost?** 43487 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/205330663-shark-antennas-s-f20-mono-band-hf-20-meter-mobile)

## Best For

- gigaparts enthusiasts

## Why This Product

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

## Key Features

- • **Durable Fiberglass Mast:** 44-inch mast with integral coil ensures lightweight strength and weather resistance.
- • **Precision-Tuned 20m Band:** Optimized for crystal-clear HF mobile communication on the 20-meter band.
- • **Robust 250W Power Capacity:** Handles high power transmissions without compromise, perfect for serious operators.
- • **Expandable Multi-Band Setup:** Combine multiple sets with quad or octo mounts to dominate multiple bands and DX contacts.
- • **Modular Mount Compatibility:** Standard 3/8x24 thread base fits a wide range of mounts for versatile setups.

## Overview

The Shark Antennas S-F20 is a 44-inch fiberglass vertical antenna designed for the 20-meter HF band, supporting up to 250W power. Featuring a durable black wrap and a standard 3/8x24 threaded base, it offers flexible mounting options and modular expandability for multi-band configurations, making it ideal for mobile and home DX operations.

## Description

Shark Antennas S-F20 Mono Band HF 20 Meter Mobile Vertical Antenna with 3/8x24 Threads, Handles 250W Max

## Features

- Shark HamSticks cover a single band, fiberglass mast measures 44” with integral coil and an adjustable (removable) 48" stainless steel whip.
- All antennas are rated for 250W MAX power, and come with a solid black wrap.
- All of the Shark HamSticks have a 3/8” x 24 thread base, convenient for many mounts.
- Buy a matching set and set up a horizontally-opposed dipole, easily stashed in the attic or out back. Use a quad-mount, and buy two sets (bands) and cover your two favorite bands. Buy an octo-mount, and four matching sets/bands, and you can work DX with ease!
- Please note that these antennas do not come with a mount, owing to the variety of their applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 15.2 ounces |
| Product Dimensions | 50 x 3 x 2 inches |
| Country of Origin | USA |
| Item model number | S-F20 |

## Product Details

- **Antenna:** Radio
- **Brand:** GigaParts
- **Color:** Black
- **Number of Channels:** 1
- **Maximum Range:** 20 Meters
- **UPC:** 712265213377
- **Manufacturer:** Shark Antennas

## Images

![- Shark Antennas S-F20 Mono Band HF 20 Meter Mobile Vertical Antenna with 3/8x24 Threads, Handles 250W Max - Image 1](https://m.media-amazon.com/images/I/51gtAevsL7L.jpg)

## Questions & Answers

**Q: What frequencies does this work with? I’m specifically looking at 915MHz**
A: This is the wrong antenna for that frequency.  This works in the 14 Mhz band.  It is way too low   I don't think Shark makes on for the 915 Mhz band, I think the highest frequency they make one for is 6 Meters (50 Mhz)

**Q: What is the gain?**
A: Gain isn't really a measurement used for shortened HF antennas, it would be a negative number BUT this antenna works well.  I always get good reports - the important thing is tuning the antenna.

**Q: I see a couple of people mention tripod mounting - what do you do in the way of counter poise & grounding?**
A: First let me say these Shark antennas are great. I primarily use mine with the mag mount quick disconnect. When you use a tripod on the ground you must have at least one radial a quarter wave long for the freq. in use. I use four radicals but it will tune with one. Without radicals it will not tune. Spell check sucks. Thx

**Q: I have trouble tuning my Shark. Can someone suggest approximate overall length that should tune for the high end of 20m?**
A: I had some trouble also, it took some time with my antenna analyzer before I finally got it to a reasonable tuning.  My final SWR was about 2, which was higher than I liked.  The adjustable end is 30 3/8 inches from the ferule to the tip.  That was with about 50 feet of coax on the line.  

Incidentally, i was able to hit Europe with that antenna.  I have to Shark hamsticks with the MFJ fitting to make them into a dipole.
-Paul-

Also, don't buy the 80 meter hamstick.  It has a very narrow window of tuning.

## Customer Reviews

### ⭐⭐⭐⭐⭐ As advertised
*by K***. on May 21, 2025*

Typical ham stick. No surprises.

### ⭐⭐⭐⭐⭐ excellent, works great
*by G***S on May 12, 2025*

excellent, works great

### ⭐⭐⭐⭐⭐ Bought 2, set up as Dipole... works GREAT!
*by T***S on September 19, 2021*

For years I've been struggling to get a decent antenna to work he 20 meter band. My biggest problem is that the thing needed to be inconspicuous. I bought 2 of these 20 meter whips, bolted them to an all-weather junction box, wired them up, bolted them to a steel plate that has a ground running to earth (literally), and added an ugly homebrew RF choke for good measure.Cut to the chase, it works great! In the week it's been up there I've made contactsfrom Minnestoa to Panama, SC, FLA, TX, Massachusetts, Nevada, Maine, Michigan, British Columbia, Washington State, and I can hear loads of Spanish conversations that I assume are emanating from Mexico, although I haven't tried to talk to them (my Spanish is poor). The antenna is set up in an E-W orientation, but I seem to be covering most directions. It took a long time to dial in the SWR with my antenna tuner (started with the whips at full length, then shortened them 1/8 inch at a time), but it resonates well. I'm getting 85 watts out.The antenna can't be seen from the ground, only from the attic window. We had a nasty storm last week and it took no damage.Great product! I'm super happy. For less than a hundred bucks all in for all the bits and pieces I have a very serviceable 20m antenna. I may try adding 2 40's and see if I can't make it dual-mode.

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-02*