David Cappello (KG5EIU)

Adventures And Interests



HAM Radio Operator in St Paul TX, USA EM13rb

Building A 50Ah LiFePO4 Battery Box

Build notes on a light-weight portable 12v 50Ah LiFePO4 battery in a pelican laptop case for HAM radio and other uses – great for POTA and SOTA trips. Features include an AMP meter/gauge, main battery disconnect, dual Anderson Power Pole ports, PD/USB-C and USB QC 3.0 charge ports all housed in a lightweight easy to carry laptop case.

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POTA Activating Park K-4423

KG5EIU Activating Spring Creek Forest State Preserve

Parks On The Air (POTA) activation. I visited Texas State Park K-4423 which is “The Spring Creek Forest State Preserve” park located in Garland Texas on December 27, 2021. It was a beautiful NTX day and very warm for late December with temperatures in the mid 70’s F and a slight breeze.

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Building A HAM Radio GoBox

Operating HAM Radio GoBox From Local Park

Short slide deck and some notes on building a dual radio HAM radio gobox for Emcom use, Parks On the Air (POTA), ARRL Field Day and other HAM Radio events. Presented at the Dallas Amateur Radio Club Oct 2021 member meeting.

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Setting Up A GL-USB150 With AREDN

GL-USB150 Microuter

Installing and setting up AREDN (Amateur Radio Emergency Data Network) firmware on a GL-iNet GL-USB150 Microuter is simple an easy with just a few short steps to get this node on the air in an AREDN Network. Be sure to review the excellent AREDN Doc on getting started – will be using the GL-iNet First Install Process as a reference to get the AREDN firmware loaded on the GL-USB150 Microuter. The main use case will be have any computer with a USB port get instant access to an AREDN mesh network – you only need to be near another mesh node for it to connect. The GL-USB150 running the AREDN firmware can also act as an AREDN Tunnel Node or an AREDN Tunnel End Point.

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IoT LoRaWAN Sensor Online

RAK7204 LoRaWAN Environmental Sensor
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Experimental XLX687 Reflector OnLine

XLX687 dashboard

An experimental multi-protocol reflector XLX687 that supports transcoding on Module A between DMR, D-Star and Fusion radios has been brought online that is open for any HAM operator to use. Reflector XLX687 also includes support for Icom radios with G3 Terminal mode via IP with NO external HotSpot/Pi-Star like the IC-9700 and the IC-705.

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VHF WinLink With IC-705 And Soundmodem TNC

WinLink VHF with Soundmodem

VHF Winlink is working good with the new Icom IC-705 and UZ7HO Soundmodem 1.05 software TNC using the optional CAT control files from the Icom IC-7300

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Using WinLink With Icom IC-9700 And Soundmodem TNC

Icom IC-9700 In FM-D mode for Winlink Express
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Picture Mode IC-9700

Short YouTube video showing you how to get into picture mode on the Icom IC-9700 HAM Radio using the new firmware v1.20 release early Oct 2019.

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