







🎧 Unlock Infinite Radio Possibilities with One Cable!
The BTECH APRS-K1 is a versatile, plug-and-play universal audio interface cable designed for seamless APRS and digital mode communication. Compatible with over 100 radios including BaoFeng, Kenwood, TYT, and Wouxun, it delivers crystal-clear audio via a custom circuit board and supports Android, iOS, and PC devices through standard 3.5mm jacks. Compact, durable, and easy to use, it’s the perfect tool for professionals and enthusiasts seeking reliable, on-the-go radio interfacing without the complexity or bulk.






| ASIN | B01LMIBAZW |
| Additional Features | Data Transfer, High Speed |
| Best Sellers Rank | #166 in Portable FRS Two-Way Radios #419 in Headphone Adapters |
| Brand | BTECH |
| Built-In Media | APRS-K1 Cable, Reverse Connector Adaptor, Quick Start Guide, 3.5mm Jack |
| Color | USB Power Cable |
| Compatible Devices | Laptop (with 3.5mm audio jack), Music Player, Other devices with 3.5mm audio jack, Smartphone |
| Connectivity Protocol | APRS |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,408) |
| Manufacturer | BTECH |
| Mfr Part Number | BTECH-APRS-V01 |
| Model Number | BTECH-APRS-V01 |
| Number of Channels | 8 |
| Talking Range Maximum | 1 Mile |
| Tuner Type | VHF |
| UPC | 722589229756 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
A**G
Simple, Affordable APRS & Digital Interface – Great for Mobile Use
I picked up the BTECH APRS-K1 Interface Cable to experiment with APRS and digital modes using my Btech BF-F8HP Pro handheld—and I’m honestly impressed by how much functionality you get in such a small, affordable package. ✅ Plug-and-Play Simplicity: Unlike more complex setups, the BTECH APRS-K1 is extremely easy to use. Just plug the K1 connector into your radio and the audio jacks into your phone, tablet, or computer running your favorite APRS or packet software. No drivers, no configuration headaches. It worked right away with APRSdroid on my phone. ✅ Great for APRS: I’ve successfully used it for APRS position beacons and receiving weather bulletins. It's an excellent tool for experimenting with analog/digital hybrids, and it’s especially handy for on-the-go or field use. ✅ Compact & Durable: The build quality is solid, and the cable isn’t flimsy like some other knockoffs. It coils easily and fits in a go-bag or glove box without taking up much space. ✅ Wide Compatibility: Works with most radios using the Kenwood K1 connector—including Baofeng, TYT, Radioddity, and others. I tested it with a BF-F8HP Pro and it worked flawlessly. 🆚 Compared to the Digirig: The Digirig is more powerful and flexible—it has a built-in sound card and can interface with many radios via USB, with full CAT control and rig monitoring. It’s great for WSJT-X, FT8, Winlink, and other digital modes that require precise audio control. However, it is double the price and you still have to buy $35 cables to connect it. However, the APRS-K1 shines in its simplicity and portability. No drivers, no setup, no extra power needed. Just plug and go. It’s perfect for APRS and analog audio modes, especially if you're working with Android apps or just need a lightweight field setup. 📌 Things to Know before you buy: This cable is audio-only—no CAT control or PTT over USB. It uses VOX, so your radio must support that (most Baofengs do). You may need to adjust mic gain and audio levels depending on your device and app. Final Thoughts: The BTECH APRS-K1 is a fantastic low-cost solution for APRS and audio-based digital modes. It’s not as feature-rich as a Digirig, but it’s also less than half the price and far easier to use in a field or mobile setting. If you’re looking to get started with APRS or dabble in analog digital modes, this cable is a no-brainer. Great value, great design, and super convenient.
L**E
Works for Anytone 878
Plug and play for Vara FM over Anytone 878. I was skeptical it would work but it worked great right out of box.
F**T
Good cable hamstung by radio
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 why The 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.
S**R
It works but Easi-digi works better
So I have purchased the EBay Easi-Digi interface for $40 and it does work great. I am in CERT and we are starting to use SSTV for sending images back to the EOC of damage from Disasters. As you can see from the image shown there is enough room to do your call sign for legality purposes and there is room for the Date and Time and room for USNG map coordinates so the First Responders know the Exact time/date and location the image was taken at. I wanted to try this cable out because it is half price of the EBay interface and my thoughts are more CERT people might be willing to give it a try if it didn't cost $40. Well I am having the same issues as everyone else. Once the SSTV App comes front and center off the radio goes keying up over and over every few seconds. Used a 3G and 5S iPhone, same issues. I tried it again last night and on a VOX setting of (9) the radio would not key up until I hit the "Transmit Image" button. I went ahead and set the VOX to (10) and the radio does stay off. It does bother me that it does this as the EBay interface does NOT do this and I can use a VOX setting of (1) with it. So I will test it further to make sure it doesn't mess the radio or the iPhone up. I contacted Btech for help with it but I am not sure they can do anything about it.
M**.
GMRS Repeater Auto-ID
This little piece of kit was just the interface cable I needed for my Repeater Auto-ID project. Have old PC dedicated to GMRS repeater, radio programming software, etc. Wrote a little VBS script to announce time and identity the station. Announcement audio is piped from 3.5mm headphone port to dedicated handheld (Wouxun KG-805G), Windows Task Scheduler fires the script at the top of each hour. Had to find the right mix of volume and VOX sensitivity level, but she's working great.
J**I
Excelente Producto gran Precio y Calidad
H**.
resimdeki ürün yerine AUX ara ses kablosu geliyor. B-Tech markalı deği.direk boya markalı..
A**S
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.
N**N
good
J**R
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.
M**L
Resimdeki gibi B-Tech APRS-K1 kablosu değil, Boya marka jak-lightning kablosu geliyor. Ürün hatalı. Amatör telsizci arkadaşlar uzak dursun.
Trustpilot
2 months ago
4 days ago