SHARI

All SHARI models are currently available. However, due to the Covid-19 problem, there may be a short wait because there is only one person doing the kitting and building. Please send us an email at kitsforhams@gmail.com with your desired quantities and type (Pi3U, Pi3V, Pi4U or Pi4V; kit or assembled). Please include your amateur radio call sign as SHARI is only available to licensed hams. We will add you to our waiting list. Also, please join our SHARI group at groups.io/g/shari for additional information.

Overview

SHARI (SA818 Ham Allstar Radio Interface) is a ham construction project designed by N8AR that implements a Raspberry Pi hosted Allstar node using a NiceRF SA818 embedded UHF (420 – 450 MHz) or VHF (144-148 MHz) radio module. SHARI is designed as a kit for construction and use in the amateur radio service by licensed amateur radio operators who can assure that their assembled SHARI kit meets FCC mandated operating requirements including RF frequency, deviation and required power levels at the fundamental and harmonic frequencies.

SHARI plugs into two USB jacks on a Raspberry Pi3 or Pi4 for power, the Allstar interface and radio programming (a short M/F USB extender cable can be used if desired). Front panel LEDs indicate the status of SHARI – [POWER (green), CONNECTION STATUS (blinking green), COS (yellow) and PTT (red)] . SHARI RF output power is 100 to 400 milliwatts.

SHARI is available in four models –

  • Pi3U (70 cm for the Pi3)
  • Pi3V (2 meters for the Pi3)
  • Pi4U (70 cm for the Pi4)
  • Pi4V (2 meters for the Pi4).

Features

  • Works with a Pi3 or Pi4 (USB connector positions swapped)
  • Uses the Cmedia CM119B or CM108B USB audio IC
  • Uses a NiceRF SA818 UHF or VHF embedded radio module
  • 100 to 400 milliwatts RF output power
  • Small, portable with self contained radio and antenna
  • Kit includes PCB with all surface mount parts installed
  • Kit builder installs 8 through-hole parts, the radio module and completes final mechanical assembly
  • Rugged RFI-resistant metal enclosure
  • 3D printed plastic end caps with all required holes provided
  • Radio settings changed using a program running on the Raspberry Pi

SHARI-BRIAN-DINAH Comparison Matrix

A comparison matrix of the specifications and features of SHARI, BRIAN(SM) and DINAH can be downloaded by clicking on the DOWNLOAD button below.

Schematic

SHARI Schematic Rev C

Parts List

SHARI Kit Contents

Construction

SHARI uses a single circuit board. The circuit board contains surface mount (SMD) parts as well as 8 through-hole parts and the SA818 (UHF) radio module.

Fully Assembled SHARI Pi3U PC Board

The SHARI kit contains all of the parts required to build the device. The kit is supplied with all of the small surface mount parts installed on the PC board. The kit builder installs the 8 surface mount parts, the SA818 radio module and completes final mechanical assembly. Plastic 3D printed end caps are provided with the kit to simplify mechanical construction.

Construction Manual

A comprehensive step-by-step construction/assembly manual is supplied as a download from our SHARI group on groups.io. It can be downloaded from the Files section of our SHARI group at http://www.groups.io/g/shari/files.

Allstar Node Setup and Configuration

A basic Allstar Node setup and configuration guide for SHARI is supplied as a download from our SHARI group on groups.io. It can be downloaded from the Files section of our SHARI group at http://www.groups.io/g/shari/files.

Ordering Information

SHARI is designed as a kit for construction and use in the amateur radio service by licensed amateur radio operators who can assure that the SHARI kit they are using meets required operating requirements including frequency, bandwidth and required power levels at the fundamental and harmonic frequencies. There are four SHARI models:

Pi3U – UHF (420-470 MHz) radio for the Raspberry Pi3
Pi3V – VHF (144-148 MHz) radio for the Raspberry Pi3
Pi4U – UHF (420-470 MHz) radio for the Raspberry Pi4
Pi4V – VHF (144-148 MHz) radio for the Raspberry Pi4

Electrically, the models are equivalent. They differ in frequency of operation (UHF or VHF) and the location of the two type A male USB connectors (to accomodate the USB connector location change between the Pi3 and the Pi4)

SHARI  is available as a simple parts kit (install 8 through-hole parts, the radio module and complete final assembly) for $60 (UHF), $65 (VHF).

A fully assembled and tested SHARI is $85 (UHF), $90 (VHF) (We build and test your kit for you. You are still responsible for proper operation in the amateur radio service).

Shipping to US destinations is $8 via USPS Priority Mail. Payment via Paypal is preferred.

Send an email including your amateur radio call indicating the model(s) and type (kit or assembled) you would like to kitsforhams@gmail.com for ordering and delivery information. We will send you a customized Paypal invoice to pay.

Support

Support of SHARI is provided via the SHARI group at  http://www.groups.io/g/shari

The purpose of the SHARI group is to serve as the main hardware support source and discussion group for hams building and using the SHARI Allstar Node. Support of the Allstar distribution you install in your Raspberry Pi and use in conjunction with SHARI is best obtained from the source of the Allstar distribution (i.e. allstarlink.org or hamvoip.org).

Please join the SHARI group for the latest information on SHARI.

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