Advertisement
Quick Links
NØXAS
Multi-Purpose Audio/Interface Board
The Connection Kit board is designed to meet a wide range of needs. The on-board
LM386 audio amplifier can be used to drive a speaker from your PicoKeyer for code
practice. An additional input channel lets you mix receiver audio with filtered, smoothed
Morse ID tones for repeater or EchoLink/IRLP nodes. A PTT circuit can be used with
many brands of handheld transceivers (Yaesu, Alinco, Icom, etc) for over-the-air code
practice, node ID, fox hunt transmitters, etc. Input conditioning circuits can be used to
convert inverted logic signals or signals up to 24V for use as ID-O-Matic inputs.
• Sidetone filter and level control to smooth out sidetone from square-wave sources
• Audio amplifier/mixer for repeater or node ID, code practice, etc.
• PTT pull-up circuit for handheld transceivers
• Two input conditioning circuits with voltage limiting and selectable polarity
convert signals up to 24V to TTL levels
• Can plug directly onto ID-O-Matic PCB piggy-back style
Connection Kit Manual
Connection Kit
Features
04/18/2008
Page 1 of 4
Advertisement
Summary of Contents for NOXAS Connection Kit
- Page 1 Connection Kit Multi-Purpose Audio/Interface Board The Connection Kit board is designed to meet a wide range of needs. The on-board LM386 audio amplifier can be used to drive a speaker from your PicoKeyer for code practice. An additional input channel lets you mix receiver audio with filtered, smoothed Morse ID tones for repeater or EchoLink/IRLP nodes.
- Page 2 The longer lead should go into the hole marked “+”. Locate the 10 µF electrolytic capacitor in location C6. Make sure to observe the polarity marking on the board. The longer lead should go into the hole marked “+”. Connection Kit Manual 04/18/2008 Page 2 of 4...
- Page 3 Apply a source of filtered, regulated DC power between 9 and 16 Volts to your Connection Kit board via the PWR pads. Ground is on the left, positive is on the right. Check for DC power not exceeding 16V between pin 4 (-) and pin 6 (+) on socket U1.
- Page 4 Matic, but can be used in other applications as well. The connections available are as follows: J_ID 1 No Connection J_ID 2 INHIBIT output J_ID 3 START output J_ID 4 PTT input J_ID 5 No Connection J_ID 6 Ground Connection Kit Manual 04/18/2008 Page 4 of 4...