Version	KV4P HT 2.0 (Latest)	KV4P HT 1.8 (Latest)	KV4P HT 1.7b
PCBA Size	3.8cmx8.2cm	3.4cmx9.8cm	3.4cmx9.8cm
PTT button	Yes	NO	NO
features	Better VHF low pass filter	Better VHF low pass filter	/
outer packaging
Part List	1 X KV4P-HT KIT ASSEMBLED – 1 X KV4P-HT PCBA 2.0; 1 X 3D PRINTED CASE FOR KV4P HT; 1 X VHF SMA ANTENNA; 1 X DATA CABLE(TYPE-C TO TYPE-C);	1 X KV4P-HT KIT ASSEMBLED – 1 X KV4P-HT PCBA 1.8a; 1 X 3D PRINTED CASE FOR KV4P HT; 1 X VHF SMA ANTENNA; 1 X DATA CABLE(TYPE-C TO TYPE-C);	1 X KV4P-HT KIT ASSEMBLED – 1 X KV4P-HT PCBA 1.7b; 1 X 3D PRINTED CASE FOR KV4P HT; 1 X VHF SMA ANTENNA; 1 X OTG ADAPTOR(TYPE-C TO MICRO USB); 1 X DATA CABLE(TYPE-C TO MICRO USB);

Description

We’re excited to introduce the KV4P-HT as a fully assembled, ready-to-use kit! Designed by Vance KV4P Vagell, this portable, open-source VHF radio kit transforms your Android phone into a handheld radio transceiver. For detailed insights, visit KV4P’s website.

At Chelegance, we’ve listened to feedback from enthusiasts who were excited about the KV4P-HT project but faced challenges such as:

Sourcing quality components
Ordering PCBs internationally
Limited experience with 3D printing enclosures
etc..

To address these hurdles, we’ve simplified the process by providing a ready-to-use kit that retains the original design without modifications.

Our Advantages:

Plug & Play – Ready Out of the Box

An all-in-one kit that allows instant connectivity as soon as you unbox.

Portability

Comes with a beautifully designed carrying case for easy transport.

Reliability

Each unit undergoes thorough functional testing before shipment to ensure optimal performance.

HOW TO USE

（Most of the photos below are from KV4P-HT 2.0

Unbox Your Kit
Open the package and take out the KV4P-HT along with the included components.
Connect the Antenna

Attach the SMA Male Antenna provided in the kit to the KV4P-HT.
Connect to Your Android Phone

Use the DATA cable to connect the KV4P-HT to your Android phone.

※For the 2.0&1.8a version, you will need to connect data cable (TYPE-C TO TYPE-C)directly to your phone

※For the 1.7b version, you will need to connect the OTG and data cable included in the package
Install the Android App
- Search for “KV4P HT” on the Google Play Store or use the direct link to download the app.
- The app requires Android 8 or higher, which was introduced in 2017. Most modern Android phones with a USB-C connector are compatible.

Flash the Firmware

The first time you open the app, it will automatically flash the firmware onto your KV4P-HT. This process takes approximately 1–3 minutes.
Get on the Air!

Once the setup is complete, you’re ready to start using your KV4P-HT handheld transceiver! For the 1.7b and 1.8a version, you need to press the transmit button in the app. However, with the 2.0 version, you can send directly using the PTT button.