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 Mini-TNC: A 1200 Baud Radio Modem using PIC16F88
 

Mini-TNC 1217: AN APRS/Packet  TNC  USB.

 

 Mini-TNC Rev1217 with Firmware V1.09
  
 Evaluation & Test Report of Mini-TNC:
 Doug / W5DUG

 Bernard / KI6TSF

 Uwe / SM6JWU


 

A Simple PIC88 based APRS TNC: Rev1217

1. A stand alone TNC to replace MX614 Modem

2. Send & Received APRS data to COM port.

3. Supports "Converse Mode" and Packet/APRS with Version 1.09 firmware by Dennis/N5VRP

4. USB: CH360G USB to Serial chip is used to create Virtual COM port 

5. USB Powered 

Project Details:

Mini-TNC is a PIC88 based TNC which decode aprs packets & route to COM port.  Mini-TNC is powered by USB. 

A CH340G is used as USB to Serial converter to obtain TTL Level TX/RX lines for PIC16F88. CH340G Creates a virtual COM Port. 

This TNC has Screw Terminals for outside communications, i.e. RX/TX/GROUND/PTT 

Project is designed on 11cm X 6.5cm Double Sided PTH board and results were very encouraging. 

PIC16F88 Firmware for Mini-TNC is available at 4800 & 9600baud and its at V1.09 provided by Dennis/N5VRP.  Please refer to N5VRP Document for more details on new firmware compatibility.

 

 Documentation 
 
Mini-TNC Rev1217 Document

1200 baud modem using MX614

 
Mini-TNC Rev1217 KIT Parts List

1200 baud modem using MX614

 
Configuration Document

1200 baud modem using MX614

     
Using Hyper Terminal of Windows

1200 baud modem using MX614

     
Mini-TNC Rev1217 Schematic

JPG

     
RAW DATA SAMPLE FILE

1200 baud modem using MX614

     
N5VRP Firmware V1.09

 
V1.09 Firmware Details by Dennis/N5VRP

1200 baud modem using MX614

 
CH340G Driver Installation
 
CH340 Datasheet 1200 baud modem using MX614
 
 Buy Mini-TNC Kits

For online payments, shipping charges will be added on secure web page, which are from $5.00 upwards for Registered Air Mail, and based on value/weight of the KIT/Assembled.

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Mini TNC Rev1217 Complete Kit with Firmware: 1.09
USD 34.00 Kits

USD 40.00 Assembled

Kits/Assembled: Includes a Free Metal Case

Firmware available for  4800 and 9600 baud, Select at checkout

 


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2CheckOut.com Inc. (Ohio, USA) is an authorized retailer for goods and services provided by Fox Delta.

 

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