Chelegance

The Chelegance MC‑599 shortwave dipole antenna is designed for portable and versatile use across multiple amateur radio bands. Proper adjustment of the antenna whip is essential to achieve optimal performance, reduce standing wave ratio (SWR), and ensure reliable transmission and reception. 1. Attach Whips Before Extending Before extending the whip sections, make sure each whip …

How to Adjust the Whip of the MC‑599 Antenna for Operation in Each Band Read More »

The MC-750 portable antenna system is already well known among amateur radio operators for its versatility on multiple HF bands. One of the most common questions we receive is: “Can the MC-750 be used on the 30-meter band (10 MHz)?” The answer is simple: Yes, it can! With just a small adjustment, the standard MC-750 …

How to Use the MC-750 on the 30m Band (10 MHz) Read More »

When choosing a portable HF antenna, MC-750 and JPC-12 are two options with similar performance but distinct design features. Below, we’ll explore their main differences to help you decide which best suits your needs. 1. Design & Performance The MC-750 operates as a full-size vertical antenna above 14 MHz. It also features banana plugs for …

MC-750 vs. JPC-12: A Comparison of Two Portable HF Antennas Read More »

Preparation 1. Download Tools:      – [Recovery Firmware Package](your-website-link/SV6301A_RecoveryUpdate.zip)      – Driver package (included in the firmware ZIP)   2. Requirements:      – Phillips screwdriver      – USB cable (preferably original)      – Windows PC   Step-by-Step Instructions Step 1: Prepare the Device   1. Power off the device completely.   2. Remove four screws …

Self-Service Guide: How to Safely Upgrade Recovery Firmware for SV6301A Devices Read More »

CNtoU JMount – 07 is an adjustable mobile antenna bracket for JPC-7 and JPC-12 antennas.It offers flexible orientation adjustments, allowing the antenna to be positioned vertically or horizontally. This makes it ideal for installations in limited spaces, such as apartment balconies. The bracket ensures effective HF antenna deployment while maintaining a compact profile. Product Overview …

CNtoU JMount – 07: Compact Adjustable Antenna Mounts for JPC-7&12 Antennas Read More »

Regarding the product quality, each section of every whip is carefully printed with measurements and undergoes stretching checks.Very low probability of quality issues. Therefore, the possibility of a quality issue is very low. Additionally, we conduct a final inspection before shipment to ensure everything is in proper condition. Here are the correct usage instructions and …

Instructions for using telescopic whips, how to prevent from damaging? Read More »

In the world of amateur radio, making contacts with operators across the globe has always been a thrilling experience. One particularly exciting way to achieve this is through **satellite communication**. Today, BD7LLY will introduce what satellites are, how they relate to amateur radio, the different types of satellites, how they move, and what you need …

Working Amateur Radio via Satellites Read More »

ATV (Amateur Television) is a form of amateur radio communication that allows operators to transmit television signals over radio waves. Unlike traditional voice or data communication, ATV enables the transmission of both video and audio, similar to what we experience in conventional TV broadcasts. However, ATV operates on amateur radio frequencies, which gives it a …

What is ATV? Read More »

In the world of amateur radio and RF (radio frequency) devices, toroid ferrite cores play a crucial role, though they are often overlooked. This article will guide you through the basics of toroid ferrite cores, explain their uses, and explore different types of ferrite materials like FT240-43 and Type 31, which are essential for various …

Understanding Toroid Ferrite Cores: From FT240-43 to Type 31 Materials Read More »

Hello everyone! Many hams have asked us whether the JPC-12 antenna can operate on the 80m band. The answer is yes. Today, we’ll talk about how to make the JPC-12 antenna operate on the 80m band and share some optimization tips. Hope you find it helpful! To make the JPC-12 operate in the 80m band, …

Can the JPC-12 operate on the 80m band? Read More »