GEPRC RX as TX JR-Bay Modification Kit - JR-Bay Modification Kit for ELRS RX-to-TX, 2-6S, Dual Antennas

Overview

The GEPRC RX as TX JR-Bay Modification Kit is a JR-Bay Modification Kit designed as a quick DIY solution that takes advantage of an ExpressLRS (ELRS) receiver’s ability to upgrade via firmware into an external TX module. Tagline: “Effortless Modification, Unleash Your DIY Spirit.”

It is compatible with a wide range of controllers featuring a JR bay, supports a dual-antenna JR-bay design (Ant1/Ant2), and offers quick connections using pogo pins, SH1.0, or soldering. The 3D-printed version uses a vibrant multi-color PLA shell and includes receiver mounting parts designed for GEPRC receivers.

Key Features

• Standard JR-bay with dual-antenna support and a vibrant multi-color 3D printed shell
• Dual Antenna Design
• Cooling Fan / compatible with active cooling fan (dedicated fan mounting space and optimized airflow design)
• JR-Bay Layout
• Quick Connections
• Three Connection Methods: quick receiver connection via pogo pins, SH1.0, or soldering
• GEPRC Receiver Quick Install: custom mount for GEPRC receivers enables quick installation with pogo pins (for a cleaner look)
• Paired with 915M/2.4G dual-band T-type antennas for convenient band switching
• Fully open-source PCB and shell design files available for customization (JR-bay shell or PCB)

Specifications

For compatibility and setup questions, contact https://rcdrone.top/ or email support@rcdrone.top.

Installation

1. Open the ExpressLRS Configurator or use the ELRS online flashing website: https://expresslrs.github.io/web-flasher/
2. Select the corresponding receiver model.
3. In the advanced settings, enable the “RX as TX” option and set it to “external” TX.
4. Follow the standard flashing procedure to install the “RX as TX” firmware. After rebooting, the receiver will function as a TX module.
5. Wire the receiver to the kit: connect receiver GND, 5V, TX to the JR-Bay Modification Kit GND, 5V, SP respectively.

• Visible JR-bay/connection labels: NC, SP, 5V, GND
• Configurator items shown: Compatibility options include RCVR_UART_BAUD and RX_AS_TX; value set to external
• Advanced Settings values shown: WiFi “auto on” interval 60 seconds; “RX as External TX module (Half-duplex)”; TLM report interval 240 milliseconds

Open-Source Files

The PCB and shell design files for the RX as TX JR-Bay mod kit are fully open-source. Download: https://geprc.com/support/download/download-the-open-source-pcb-board-and-shell-design-files-here/

What’s Included

Basic Kit Includes

• RX as TX JR Bay PCBA board x1
• 915M/2.4G dual-band T-antennas x2
• IPEX1 to SMA right-angle cables (outer thread, inner hole) x2
• Cooling fan x1
• 4-pin pogo pin x1
• 4-pin silicone cable x1
• M2*5 screws x6
• M1.4*6 self-tapping screws x8
• M1.4*8 self-tapping screws x8

3D-Printed Kit Includes

• 3D-printed bottom shell for RX as TX JR Bay x1
• 3D-printed top cover for RX as TX JR Bay x1
• 3D-printed mounting base for GEPRC GemX Gemini receiver x1
• 3D-printed top cover for GEPRC GemX Gemini receiver x1
• 3D-printed mounting base for GEPRC DUAL 915M Diversity receiver x1
• 3D-printed top cover for GEPRC DUAL 915M Diversity receiver x1
• 3D-printed 5-pin connector mounting part x1
• RX as TX JR Bay PCBA board x1
• Dual-band T-type antennas (915M/2.4G) x2
• IPEX1 to SMA right-angle cables (outer thread, inner hole) x2
• Cooling fan x1
• 4-pin pogo pin x1
• 4-pin silicone cable x1
• M2*5 screws x6
• M1.4*6 phillips self-tapping screws x8
• M1.4*8 phillips self-tapping screws x8

Details

The GEPRC RX as TX JR-Bay modification kit features dual antennas and a built-in cooling fan in a JR-bay style module housing.

The JR-bay modification kit uses a dual-antenna design with two top-mounted SMA ports in a durable 3D-printed shell.

The GEPRC JR-bay modification kit supports receiver wiring via pogo pins, an SH1.0 connector, or solder pads labeled SP, 5V, and GND.

The GEPRC JR-bay receiver mount uses pogo-pin contacts for a quick, clean install when converting an RX module for TX use.

The GEPRC JR-bay modification kit includes a compact receiver module with a dedicated active cooling fan mount and airflow-friendly housing.

ExpressLRS advanced settings let you enable RX_AS_TX and set it to an external TX so a receiver can be flashed to work as a TX module.

Open-source PCB and JR-bay shell design files let you 3D print parts or customize the RX as TX JR-Bay modification kit.

GEPRC RX as TX JR-Bay Modification Kit supports 2–6S input, 5V@1A output, and soldering, SH1.0 connectors, or pogo pin connections.

The GEPRC JR-bay modification module features a compact housing with dual coax antennas for flexible placement on your radio setup.

The GEPRC RX as TX JR-bay modification kit uses a compact module with dual antennas to support a cleaner radio-bay setup.

The GEPRC RX as TX JR-Bay modification kit includes a JR Bay PCBA board, dual-band T-antennas, IPEX1-to-SMA cables, a cooling fan, and mounting hardware.

The GEPRC RX as TX JR-Bay modification kit includes 3D-printed housings, an RX as TX JR Bay PCBA board, dual-band T antennas (915M/2.4G), IPEX1-to-SMA right-angle cables, a cooling fan, and mounting hardware.