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BTECH APRS-K1 Cable
A Multipurpose TRRS/APRS Cable for Seamless Audio Interfacing
The BTECH APRS-K1 Cable is more than a cable, it's your key to unlock the expansive world of Automatic Packet Reporting System (APRS). Effortlessly transforming your existing radio equipment into an APRS ready device, the APRS-K1 Cable is perfect for amateur radio enthusiasts wanting to dive into real-time transmission of positions and other critical data.
Key Features of the APRS-K1 Cable
Automatic Audio Adjustment: Featuring a custom circuit board, the APRS-K1 auto-adjusts the audio for clear packet transmissions, eliminating the need for manual adjustments. This ensures reliable and effortless APRS transmissions.
Over-Modulated Signal Protection: The cable is crafted to guard your devices from strong over-modulated signals, ensuring damage prevention and a smooth APRS experience.
Expanded Functionality
Beyond APRS, the APRS-K1 Cable serves as an interface gateway, adding a variety of features to your radio. Easily record radio conversations, set up VOX for incoming audio from various sources, or use the cable to broadcast messages over an intercom or speaker system from your handheld radio.
What's in the Box
- APRS-K1 Cable
- TRRS Reverse Connector Adaptor
- Quick Start Guide
Key Features
Universal Compatibility
The cable is compatible with Kenwood K1 Accessory Dual Pin Radios, including: BaoFeng, BTECH, Kenwood, AnyTone, Wouxun, TYT, and all phones, tablets, computers, or audio accessories with 3.5mm Audio In/Out Ports.
The BTECH APRS-K1 Cable is truly a universal audio interface solution, bridging the gap between your radio equipment and the world of over-the-air communication.
Understanding the Plug Types on the BTECH APRS-K1 Cable
Kenwood K1 Accessory Slot Plug: This plug allows for compatibility with radios that use the highly popular Kenwood K1 accessory standard. This encompasses hundreds of models including BaoFeng, BTECH, Kenwood, Wouxun, and TYT, making the cable a universal accessory for all your radio communication needs.
3.5mm Audio In/Out Plug: This plug is designed for integration with a broad spectrum of phones, tablets, and computers that use the standard 3.5mm Audio In/Out Ports. This feature enhances the cable's versatility, allowing you to quickly connect your devices and start using APRS or other functionalities right away.
Maximizing Versatility with the TRRS Reversing Adaptor
The BTECH APRS-K1 Cable is a paragon of adaptability and functionality, and one crucial component that amplifies these features is the included TRRS Reversing Adaptor.
Universal Compatibility: The TRRS (Tip-Ring-Ring-Sleeve) reversing adaptor allows the APRS-K1 Cable to be compatible with a wider variety of devices. It accommodates both CTIA and OMTP standard devices, which differ in the arrangement of microphone and ground contacts on the plug. This means you can use the same cable for devices from different manufacturers without worrying about compatibility issues.
APRS-K1: Limitless Uses
BTECH: We are proud to be here in the USA
BTECH radios are designed and supported right here in the USA. A BTECH label means you are getting a radio with real US-based support, and development! If you ever have an issue, our team will be prompt, knowledgeable, and supportive to ensure your radio operates exactly as it should.
Versatile Uses of the BTECH APRS-K1 Cable: A Universal Audio Interface Solution
The BTECH APRS-K1 Cable is a comprehensive solution that takes your radio communication to the next level. Its versatility shines across a variety of use-cases, making it an indispensable tool for both amateur and professional radio enthusiasts.
Whether you are an amateur radio hobbyist looking to explore the APRS world or a professional seeking an efficient and versatile interface solution for your radio equipment, the BTECH APRS-K1 Cable is the universal tool that has you covered.
- APRS Communication: Transform your regular radio equipment into an APRS-ready system. Transmit and receive location information, messages, and telemetry data in real time.
- Radio Conversation Recording: Connect the cable to any line-in recording device for effortless recording of radio conversations.
- Mic-In Connector: Utilize VOX on your radio to accept incoming audio from various sources, including Push-to-talk applications on a phone or Line-out applications from a computer.
- Broadcasting Over Speaker Systems: Connect the cable to an intercom or speaker system and easily broadcast messages over a wider area using your handheld radio.
RJ
Reviewed in the United States on May 19, 2025
This cable is working great for capturing audio on a specific frequency I have set up. I run the audio output into a voice recorder so I can log all transmissions and review them later. Everything is functioning as expected with my Baofeng UV-82, and it’s been a reliable setup so far. I will update this review if anything changes.
Muhammet Özgür UZUN
Reviewed in Turkey on March 4, 2025
Ürün ismine dikkat edin, ben dikkat etmedim, görsellere baktım, görseldeki ürün insanı yanıltıyor, gelen ürünün görseldeki ile alakası yok.
FB
Reviewed in the United States on January 24, 2025
Love this cable! It's to use on most of my HT's, I've been doing sstv for 2meters and using my phone now onto the tablet. If your looking for a great cable for the price this is it!
Robert C. Waldo
Reviewed in the United States on April 19, 2025
New android phone, so I needed a new cable to play APRS.
Krankykong
Reviewed in the United States on April 19, 2025
Works great, wonderful for on the go digital modes.
David
Reviewed in the United States on April 18, 2025
Worked for my Baofeng 5RM and direwolf on a Linux box to get on APRS. I’ve read other reviews about the issues with squelch and VOX but I didn’t have that problem at all. Once I got everything configured it was plug and play. Looking back I would have got the more expensive cable with PTT but oh well.
Dooom Luvver
Reviewed in the United States on December 3, 2024
If you are using this for fldigi or aprs, set vox delay to the shortest amount of time possible on your radio, and turn off ctcss/dcs at least for RX (and turn off squelch) (although I do most packet/digi on simplex only) Also, be sure you have your audio settings correctly on your computer. Either way, works really good with fldigi/flarq so far, have sent radio emails and images as well. QSSTV also works really good with this. But once again, make sure you have everything set up right. Personally I will say, I prefer a digirig mobile + digirig cables but this is a cheaper more simple to set up alternative for less computer nerdy people.
Jayson
Reviewed in the United States on December 19, 2024
I was looking for a cheaper alternative to use APRS on handheld Ham radios (HT) utilizing my cellphone. This USB -c model seemed promising, but when I first connected everything, I noticed that the unit kept lowering the volume on my phone and causing the HT to lock up while transmitting. This would continue until I disconnected and then reconnected everything. After a few iterations, the unit will finally start working (after you ensure the volume on your phone is turned back up), until you transmit a few times. Additionally, only about 5% of the transmissions were being received according to APRS.FI. This was all frustrating, to say the least!Light at the end of the tunnel:While preparing to return this item and looking at the more expensive alternatives, I noticed the other units had ferrite chokes on their lines. Therefore, in one last-ditch effort, I ordered some 5mm chokes and placed 4 on the lines (as shown in the picture). THIS WAS THE GAME CHANGER! The successful transmission rate is about 85%, and the volume/lock-up issue happens far less frequently. Hope this helps and good luck!73
Juan Villaseñor
Reviewed in Mexico on June 7, 2023
Viene muy protegido y funciona muy bien. Lo he usado para enlazar la app Zello con un UV-9 Plus Baofeng y va de maravilla. 😃 Gracias.
N
Reviewed in Canada on December 11, 2023
good
frrobert
Reviewed in the United States on July 9, 2022
1. The cable is made well and no issues with the cable itself.2. The cable's use is very limited by the radio if you want to do APRS doing both transmission and reception. If you want to do one or the other the cable works great. If you just want to be a beacon it works fine, if you want to just see what assets are around again the cable works fine. You just can do both.Here is the reason whyThe cable is audio only so you have to use VOX if you want to transmit. If you want to transmit put VOX on 2 and the radio will transmit fine. Warning be careful sending email or text via APRS. The receiving station will send back a confirmation but the Baofeng will not properly hear the confirmation and depending on your software it may try to send the message again.To get a Baofeng to receive APRS consistently you need to turn off power savings and turn off squelch. If you turn off squelch VOX does not work, so no transmission.You need to turn off squelch because most Baofengs are not quick enough with the squelch on to get the first part of the packet and APRS is all or nothing when it comes to a packet.So because of the radio you can receive or transmit not both using this cable.
AS
Reviewed in Singapore on January 8, 2022
Item took 7 days to arrive. Item is made of quality material and working well with my HT. however price is high the high side.
Brian
Reviewed in Canada on January 27, 2022
Works well thanks
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