Add the MFJ-1270DG X-Digi board and convert TNC-X into a modern, remotely configurable digipeter. With TNC-X, you only buy the capabilities you need. You don'Â’t pay for features that you will never use.

Plug a MFJ-1270Pi hat onto your Raspberry Pi. You'll have a tiny, operate-anywhere, messaging system! This lets you build an iGate, Digipeater, RMS gateway, and more that can go anywhere! Use widely-available free software such as Xastir, LinBPQ, or APRx. Got Pi? Send text messages and emails over the air using ham radio!

The MFJ-1270X is a new Terminal Node Controller design based on the Chepponis/Karn KISS protocol. It is implemented using a Microchip PIC 16F628A microcontroller, a CML MX614 Bell 202 modem chip, an 8K Ramtron FRAM, a MAX232A level converter chip, and an op-amp which provides active audio filtering for the modem.

The MFJ-1270X is a new Termi-nal Node Controller design based on the Chepponis/Karn KISS protocol. It is implemented using a Microchip PIC 16F628A microcontroller, a CML MX614 Bell 202 modem chip, an 8k Ramtron FRAM, a MAX232A level converter chip, and an op-amp which provides active audio filtering for the mo-dem.

MFJ TNC to make adjustment of R(s), then you can increase the output level of the MFJ TNC by the transmit audio control on the left side of the TNC. The transmitting audio output of the radio port is factory set at 250 mV p-p.

The MFJ-1270X is a new Terminal Node Controller design based on the Chepponis/Karn KISS protocol. It is implemented using a Microchip PIC 16F628A microcontroller, a CML MX614 Bell 202 modem chip, an 8K Ramtron FRAM, a MAX232A level converter chip, and an op-amp which provides active audio filtering for the modem.

Terminal Speed The MFJ-1270X supports only 4 terminal speeds. Jumpers JP1 and JP2 determine the speed strictly for the link between the TNC and the computer. The following settings are allowed:...

Send text messages and emails over the air using ham radio! Plug a MFJ-1270Pi hat onto your Raspberry Pi. You’ll have a tiny, operate-anywhere, messaging system! This lets you build an iGate, Digipeater, RMS gateway, and more that can go anywhere! Use widely-available free software such as Xastir, LinBPQ, or APRx.

Review Summary For : MFJ 1270C TNC; Reviews: 8 MSRP: 130; Description: VHF/HF Packet TNC. Connects to a PC serial port and your radio. Product is in production: More Info: http://www.mfjenterprises.com/products.php?prodid=MFJ-1270C # last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating; 0: 0: 8: 4.9

TNC-X — An Inexpensive TNC for VHFPacket and APRS! TNC-X is a low-cost, low power TNC currently deployed in thousands of locations all over the world. Just connect your FM radio and your computer and the world of digital packet radio is yours to enjoy.