MFT-40 DSB Transceiver Kit
Page 3
TRANSMITTER:
RF output: 3W@12V, [email protected].
Second harmonic output: -40dB below the fundamental frequency.
Other spurious signals: all signals -45dB or better below the fundamental frequency.
Carrier suppression: better than -20dB.
T/R switching: Relay.
Microphone type: electret.
RECEIVER:
Type: DC Direct Conversion.
Front end: Triple tuned circuit.
Sensitivity: 0.5uV minimum discernible signal.
Audio Preamp and Filter
Audio output: 250mW @ 8 Ohms.
PLEASE
READ
ALL
OF
THE
ASSEMBLY
INSTRUCTIONS COMPLETELY AT LEAST ONCE
BEFORE BEGINNING.
TIPS FOR FIRST TIME BUILDERS
Tools required:
- A 30w soldering iron with fine tip, small wire cutters for cutting component leads, wire strippers, long-
nose pliers, needle-nose pliers, X-Acto knife, screwdriver for M3 screws, alignment tool for adjusting IF
transformers.
- You will need a good light and a magnifying glass to see the fine print on the components and other
assembly details.
Instruments required:
- Multimeter, oscilloscope (desirable but not essential), frequency counter or HF receiver, RF power
meter, dummy load: 5W - 50 Ohms.
Soldering:
There are two important things which need to be done to insure successful operation of a kit. The first is
to put the component into the proper place on the circuit board; the second is good soldering.
