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` Ozark 17

Ozark 17

Kitted and Offered For Sale By
The Four State QRP Group

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The Ozark 17 is a CW transceiver kit for the 17 meter band. It features a VXO controlled superhet receiver and a separate VXO controlled transmitter, often called an RXTX rig. This design has built in RIT. Power output is approximately 1.5 watt. Both the receiver and transmitter are built on one single sided pc board. The design features excellent sensitivity and great performance. If you ever wanted to get on 17M with a QRP rig, the Ozark 17 will get you there nicely.

The sidetone is heard through the receiver when transmitting, so just line up sidetone with the frequency of the station to be called and fire away. The receiver features a low noise front-end on Hi IP mixer. The kit employs mostly through hole parts, with only two ICs. Only the diodes are non-SMT parts, they are large and easily soldered.

This is a difficult kit, designed for very experienced builders.
We do not recommend this for the beginning or average builder.

Clubs and Groups please note:
Group discounts are available, 5 kit minimum order required.

Specifications and Design Features

General
Single Bander:	17 Meters only, 80 and 40M also ?? See Tommy's notes
RXTX:	Split Tx and Rx resulting in built in RIT
Superhet Receiver:	55dB typical opposite sideband rejection
Frequency Coverage:	~18.090 to 18.100 easy to change during build
Power Supply:	9-12 volt battery, or shack power supply
Current requrements:	Receive XX ma, transmit XXX ma

Receiver
Superhet Design:	55dB typical opposite sideband rejection
Sensitivity:	MDS better than -125dBm (-135 typ)
IMD3:	XX dB typical
IP3:	+XX dBm typical.
IF Filter:	3 pole crystal filter at 6.0 MHz
Selectivity:	IF filter is 275 Hz wide, centered on 650Hz
Quiet:	Only 3.5 dB noise figure, unhook the antenna, you'll be amazed
QSK:	Full QSK, no pops or thumps..
Tuning:	Separate varactor tuned Colpitts VFO.
Volume Control:	Included
Audio Limiting:	For safe listening
IMD:	Excellent IMD performance, XXX dB

Transmitter
Power Output:	1.5W ??
Final Amp Design:	Class C ???
Spectral Purity:	All harmonics and spurs are 50dB or more below the carrier
QSK:	Full QSK, no pops or thumps
Tuning:	Separate varactor tuned Colpitts VFO

Documentation

Assembly Manual

Receiver Schematic - old

Transmitter Schematic - old

Board Layout Part location

Part List BOM

Photo Page Rig pix, part ID, and building tips

Original SMD version web page, info only

Posted with permission
Electronics 2000's Capacitor Identification Page
Electronics 2000's Resistor Code Graphic Calculator

This kit is Retired

All proceeds are applied toward funding OzarkCon.
Thank you for supporting The Four State QRP Group.

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the Four State QRP Group and may not be published or used without permission.