---
product_id: 3661665
title: "(Original) RH77CA 144/440 MHz. Dual-Band High Gain Handheld Antenna Rx: 120~900 MHz. (Gain: 440 Mhz. 2.15 dBi, Max Power: 10 Watts, Length: 15\") BNC"
brand: "diamond antenna"
price: "KD 22.51"
currency: KWD
in_stock: true
reviews_count: 12
category: "Diamond"
url: https://www.desertcart.com.kw/products/3661665-original-rh77ca-144-440-mhz-dual-band-high-gain-handheld
store_origin: KW
region: Kuwait
---

# Max Power 10 Watts Compact 15-inch length Dual-band 144/440 MHz (Original) RH77CA 144/440 MHz. Dual-Band High Gain Handheld Antenna Rx: 120~900 MHz. (Gain: 440 Mhz. 2.15 dBi, Max Power: 10 Watts, Length: 15") BNC

**Brand:** diamond antenna
**Price:** KD 22.51
**Availability:** ✅ In Stock

## Summary

> 📡 Elevate your signal game — never miss a beat in the airwaves!

## Quick Answers

- **What is this?** (Original) RH77CA 144/440 MHz. Dual-Band High Gain Handheld Antenna Rx: 120~900 MHz. (Gain: 440 Mhz. 2.15 dBi, Max Power: 10 Watts, Length: 15") BNC by diamond antenna
- **How much does it cost?** KD 22.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/3661665-original-rh77ca-144-440-mhz-dual-band-high-gain-handheld)

## Best For

- diamond antenna enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-Wide RX Range:** Covers 120 to 900 MHz, capturing everything from local traffic to distant aircraft communications.
- • **Powerful 10W Max Output:** Boost your handheld scanner’s signal strength with industry-leading power capacity.
- • **Sleek & Portable Design:** At just 15 inches and 0.8 ounces, it’s the perfect balance of power and portability for professionals on the move.
- • **Trusted by Pros & Enthusiasts:** Join thousands of users who rely on Diamond’s RH77CA for superior range and reliability.
- • **Unmatched Dual-Band Performance:** Seamlessly switch between 144 and 440 MHz for crystal-clear reception wherever you go.

## Overview

The Diamond RH77CA is a high-gain, dual-band handheld antenna designed for serious radio enthusiasts and professionals. Operating across 120-900 MHz with a max power of 10 watts and a compact 15-inch form factor, it dramatically enhances reception on handheld scanners, enabling clear communication over long distances, including airport and aircraft frequencies.

## Description

Buy Diamond (Original) RH77CA 144/440 MHz. Dual-Band High Gain Handheld Antenna Rx: 120~900 MHz. (Gain: 440 Mhz. 2.15 dBi, Max Power: 10 Watts, Length: 15") BNC: Radio Antennas - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Amazing Range - Bought this antenna for my Uniden BC125AT after reading reviews of other buyers recommending to replace the antenna that comes with the scanner. I can normally pick up traffic 15-20 miles away as long as it’s airborne at a decent altitude, 8-10,000ft or higher and have even heard comms from a C-130 on the departure frequency at 23 miles from my location!! I can pick up the tower frequency for my local airport while I’m 1 to 1-1/2 miles away in my car. Great antenna, worth the buy if you have a handheld scanner that you use at your local municipal or international airport!
Review: Better reception - Worker great, great reception

## Features

- Product Type :Gps Or Navigation Accessory
- Package Dimensions :1.092 Cm L X5.892 Cm W X39.700 Cm H
- Package Quantity :1
- Increase The Performance On Your Handheld Or Wideband Scanner With A Diamond Srh Series Antenna

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00M1X73EA |
| Best Sellers Rank | #228 in Radio Antennas |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,681) |
| Date First Available | July 23, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.8 ounces |
| Item model number | RH77CA |
| Manufacturer | Diamond Antenna |
| Other display features | Wireless |
| Product Dimensions | 5.91 x 0.39 x 0.39 inches |

## Product Details

- **Antenna:** Handheld Antenna
- **Brand:** Diamond Antenna
- **Color:** Black
- **Global Trade Identification Number:** 00702685258867
- **Impedance:** 50 Ohms
- **Manufacturer:** Diamond Antenna
- **Maximum Range:** 15 Feet
- **Number of Channels:** 2
- **Product Dimensions:** 15.63"L x 2.32"W x 15.63"H
- **UPC:** 702685258867

## Images

![(Original) RH77CA 144/440 MHz. Dual-Band High Gain Handheld Antenna Rx: 120~900 MHz. (Gain: 440 Mhz. 2.15 dBi, Max Power: 10 Watts, Length: 15") BNC - Image 1](https://m.media-amazon.com/images/I/41zrIj9XqdL.jpg)

## Questions & Answers

**Q: Does this help with VHF reception?**
A: I purchased the RH77CA antenna to replace the original equipment "rubber duckie" antenna on a Grecom PSR 300 Scanning Receiver.  The reception seems better, with transmissions heard from aircraft near our airport, 23 miles away.  For the price, I am satisfied with this antenna.

**Q: Does this have a male or female bnc connector? Or in short, will it fit a Uniden BCD436HP?**
A: Hello Cody, The BCD436HP has a SMA connector so the RH77CA would not work with the unit. The SRH77CA will fit the BCD436HP.Thank You!

**Q: Are any adapters or additional equipment necessary to use on a uniden bc75xlt in place of the stock antenna? sorry i am a beginner. thx.**
A: The Diamond RH77CA is the best replacement antenna available for the BC75XLT.
It has a male BNC type connector, which matches your scanner. No adapter needed.

**Q: I have a bc125at scanner and bought this antenna. i don't see how it will fit because it has a female connector. scanner has a two pin twist on. help.**
A: This antenna should work just fine. The inside of the antenna has two notches on the edge, line those up with the notches on the scanner and twist it on.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing Range
*by A***X on October 30, 2024*

Bought this antenna for my Uniden BC125AT after reading reviews of other buyers recommending to replace the antenna that comes with the scanner. I can normally pick up traffic 15-20 miles away as long as it’s airborne at a decent altitude, 8-10,000ft or higher and have even heard comms from a C-130 on the departure frequency at 23 miles from my location!! I can pick up the tower frequency for my local airport while I’m 1 to 1-1/2 miles away in my car. Great antenna, worth the buy if you have a handheld scanner that you use at your local municipal or international airport!

### ⭐⭐⭐⭐⭐ Better reception
*by P***G on October 6, 2025*

Worker great, great reception

### ⭐⭐⭐⭐⭐ Great product.
*by G***Y on December 23, 2025*

Great product.

## Frequently Bought Together

- Diamond (Original) RH77CA 144/440 MHz. Dual-Band High Gain Handheld Antenna Rx: 120~900 MHz. (Gain: 440 Mhz. 2.15 dBi, Max Power: 10 Watts, Length: 15") BNC
- Uniden Bearcat BC125AT Handheld Scanner, 500-Alpha-Tagged Channels, Close Call Technology, PC Programable, Aviation, Marine, Railroad, NASCAR, Racing, and Non-Digital Police/Fire/Public Safety.
- Bingfu 20-1300MHz Police Scanner Antenna Magnetic Base HF VHF UHF Two Way Ham Radio BNC Male Antenna Compatible with Uniden Bearcat Whistler Radio Shack Police Scanner

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**Shop now:** [https://www.desertcart.com.kw/products/3661665-original-rh77ca-144-440-mhz-dual-band-high-gain-handheld](https://www.desertcart.com.kw/products/3661665-original-rh77ca-144-440-mhz-dual-band-high-gain-handheld)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-22*