---
product_id: 663287066
title: "Diamond RH77CA Dual-Band HT Antenna 144 430 MHz High Gain Handheld Amateur Radio Antenna with Improved Range Signal Clarity for Portable Two Way Radios"
brand: "diamond antenna"
price: "¥8659"
currency: JPY
in_stock: false
reviews_count: 10
category: "Diamond Antenna"
url: https://www.desertcart.jp/products/663287066-diamond-rh77ca-dual-band-ht-antenna-144-430-mhz-high
store_origin: JP
region: Japan
---

# High gain for extended range Dual-band 144/430 MHz Flexible, durable build Diamond RH77CA Dual-Band HT Antenna 144 430 MHz High Gain Handheld Amateur Radio Antenna with Improved Range Signal Clarity for Portable Two Way Radios

**Brand:** diamond antenna
**Price:** ¥8659
**Availability:** ❌ Out of Stock

## Summary

> 📡 Elevate your signal, dominate the airwaves!

## Quick Answers

- **What is this?** Diamond RH77CA Dual-Band HT Antenna 144 430 MHz High Gain Handheld Amateur Radio Antenna with Improved Range Signal Clarity for Portable Two Way Radios by diamond antenna
- **How much does it cost?** ¥8659 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/663287066-diamond-rh77ca-dual-band-ht-antenna-144-430-mhz-high)

## 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

- • **Built to Endure:** Flexible yet rugged design resists bending and wear, perfect for daily field use and emergency comms.
- • **Dual-Band Mastery:** Optimized for 144 MHz and 430 MHz frequencies to keep you connected across popular amateur radio bands.
- • **Plug & Play Upgrade:** Compatible with a wide range of handheld transceivers, making it the ultimate antenna replacement for pros.
- • **Crystal-Clear Connections:** Experience superior audio clarity and dependable signal strength in both urban jungles and remote terrains.
- • **Precision-Tuned Performance:** Engineered to minimize signal loss and interference, ensuring stable communication when it matters most.

## Overview

The Diamond RH77CA is a high gain, dual-band handheld antenna designed specifically for 144 MHz and 430 MHz amateur radio frequencies. Its flexible, durable construction ensures long-lasting performance in both urban and outdoor environments. Precision-tuned to reduce signal loss and interference, it significantly improves transmit and receive efficiency over standard stock antennas, making it a trusted upgrade for serious ham radio operators and professionals.

## Description

desertcart.com: Diamond RH77CA Dual-Band HT Antenna 144 430 MHz High Gain Handheld Amateur Radio Antenna with Improved Range Signal Clarity for Portable Two Way Radios : Electronics

Review: Great option - Allows me to get a lot further from the tower and clear audio, it’s very long so be mindful of that but the value is there 10/10 functions perfectly and as intended
Review: Great product - Performed noticeably better that the stock antenna that was provided with my Uniden Bearcat handheld scanner.

## Features

- Designed for 144/430 MHz amateur radio bands; antenna performance depends on proper radio compatibility and correct installation. Not universal and not compatible with all radios.
- Designed for handheld radio users, this high gain antenna significantly improves transmit and receive efficiency compared to standard stock antennas, providing clearer audio and more dependable connections in urban and outdoor environments
- The RH77CA antenna features a flexible yet durable construction that resists bending and wear during daily use, ensuring consistent performance for field operations, emergency communication, and long listening sessions
- Compatible with a wide range of dual-band handheld transceivers, this antenna is optimized for portability without sacrificing performance, making it a trusted upgrade for ham radio enthusiasts and professionals alike
- Precision tuned for amateur radio frequencies, the Diamond RH77CA antenna reduces signal loss and interference, helping users maintain stable communication even in challenging terrain or signal-dense locations
- The Diamond RH77CA dual-band HT antenna is engineered to deliver enhanced signal performance on both 144 MHz and 430 MHz frequencies, making it ideal for amateur radio operators seeking reliable communication and extended operating range

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJQ13S1W |
| Best Sellers Rank | #102 in Two-Way Radio Antennas |
| Brand | Diamond Antenna |
| Brand Name | Diamond Antenna |
| Cable Type | Coaxial |
| Color | Black |
| Compatible Devices | Handheld and Scanner Antennas |
| Compatible Phone Models | No Compatible Phone Models |
| Connector Gender | Male |
| Connector Type | Bnc, Male |
| Customer Package Type | rigid box |
| Customer Reviews | 4.7 out of 5 stars 120 Reviews |
| Frequency | 144 MHz |
| Indoor Outdoor Usage | Indoor |
| Item Shape | Round |
| Manufacturer | Diamond Antenna |
| Model | RH77CA |
| Model Name | RH77CA |
| Number of Pins | 1 |
| Other Special Features of the Product | Designed for handheld and portable radio applications, Dual-band operation optimized for 144 MHz and 430 MHz amateur radio frequencies, Flexible construction for durability and long service life, High gain design for improved transmit and receive performance, Precision tuning for reduced signal loss and improved clarity |
| Outer Material | Braided Copper or Aluminum |
| Part Number | RH77CA |
| Recommended Uses For Product | Antenna replacement and signal enhancement for handheld transceivers and scanners |
| Special Feature | Designed for handheld and portable radio applications, Dual-band operation optimized for 144 MHz and 430 MHz amateur radio frequencies, Flexible construction for durability and long service life, High gain design for improved transmit and receive performance, Precision tuning for reduced signal loss and improved clarity Special Feature Designed for handheld and portable radio applications, Dual-band operation optimized for 144 MHz and 430 MHz amateur radio frequencies, Flexible construction for durability and long service life, High gain design for improved transmit and receive performance, Precision tuning for reduced signal loss and improved clarity See more |
| Unit Count | 1 Count |
| Warranty Description | 1 YEAR |

## Product Details

- **Brand:** Diamond Antenna
- **Cable Type:** Coaxial
- **Compatible Devices:** Handheld and Scanner Antennas
- **Connector Type:** Bnc, Male

## Images

![Diamond RH77CA Dual-Band HT Antenna 144 430 MHz High Gain Handheld Amateur Radio Antenna with Improved Range Signal Clarity for Portable Two Way Radios - Image 1](https://m.media-amazon.com/images/I/41ATvXi7k5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great option
*by J***Y on March 18, 2026*

Allows me to get a lot further from the tower and clear audio, it’s very long so be mindful of that but the value is there 10/10 functions perfectly and as intended

### ⭐⭐⭐⭐⭐ Great product
*by C***K on April 18, 2026*

Performed noticeably better that the stock antenna that was provided with my Uniden Bearcat handheld scanner.

### ⭐⭐⭐⭐⭐ Good fit and performance
*by B***N on July 27, 2026*

A few other bnc antenna were wobbly on my Whistler 1040 scanner. The fit was much more stable. Connected to my HT with sma adapter and the reception was slightly better than my other antennas of similar length.

## Frequently Bought Together

- Diamond Antenna Dual-Band HT Antennas RH77CA
- Anteenna TW-BNCJ-SMAJ(3 Packs) Adaptor Connector BNC Female to SMA Female is Suit for HAM (144/430MHz) Handheld Antenna BNC Male
- Anteenna TW-BNCJ-SMAP (3 Packs) Adaptor Connector BNC Female to SMA Male is Suit for Ham (144/430MHz) Handheld Antenna BNC Male

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**Shop now:** [https://www.desertcart.jp/products/663287066-diamond-rh77ca-dual-band-ht-antenna-144-430-mhz-high](https://www.desertcart.jp/products/663287066-diamond-rh77ca-dual-band-ht-antenna-144-430-mhz-high)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-15*