FM CONVERTER

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FM CONVERTER
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Team Members
Dan Harkins Team Leader
George Henry
Dr. Georgios Lazarou Advisor
Beau Blackwell
Shawn Welch
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Team Responsibilities
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Design Diagram
Signal from Audio Device
Process Signal (Convert to FM Signal)
Transmit Converted FM signal to FM receiver
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FM Transmitter Block Diagram
Compensates Modulation Delay
To FM transmitter
LR, L-R Pilot Signal
Mono-signal
Linear combining network
Delay network
LR adder
Left channel
LR adder
Balanced modulator
Effective Signal of L-R
Right channel
X2 Multiplier
19-kHz oscillator
Inverter
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FM Baseband Spectrum
Subcarrier 38 kHz
Stereo Pilot 19 kHz
L R
L R LSB
L R USB
50 Hz 15 kHz 23 kHz
53 kHz

0 Hz
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Analog Adder
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Adder Signal
Output Voltage
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LCD
16 Characters x 2 Lines Maximum input voltage
5.3VDC Operating input voltage 5VDC 8-bit
interface data bus Character font size
0.125"W x 0.200"H Weight 0.1 lbs. Display
size 2.5"L x 0.7"W x 0.4"T Module size 3.4"L
x 1.2"W x 0.5"T Price 14.95 (single unit)
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Oscillator

• Epson SG-8002
• Price 3.33 4.75 (single unit)
• Programmable from 1MHz to 125MHz

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FM CONVERTER