AeroComm 5075TXF-90 User Manual

Miniature UHF Transmitter, Model 50757TX-F

No extraneous signals

Features Benefits

•Unconditionally stable •
and no spurs

• Up to 9600 Baud • Can handle modest data
rates

• Low power consumption • Low current
requirements

• Compact • Easily fits into most
applications

Miniature UHF Transmitter

464 Hudson Terrace 19516 Amaranth Drive

Englewood Cliffs, NJ 07632 Germantown, MD 20874

[phone] [phone]

www.aerocomminc.com

Index

Applications & Specifications

Block Diagram

Schematic & Electrical Component Parts List

50757-04-13, PL50757-03-13

PCB Fabrication & Assembly

50757-07-13, 50757-03-13

Mechanical Drawings

757-0513, 757-0514

Mechanical Assembly

757-02-11, PL 757-02-11

Miniature UHF Transmitter, Model 50757TX-F

Applications

The AeroComm Miniature UHF Transmitter, Model 50757TX-F is a frequency agile transmitter
suitable for fixed, portable, and airborne applications. It operates in the 860 – 960 MHz frequency
band. When used in conjunction with AeroComm UHF Receiver Model 50757RX, the transmitter
creates a versatile communications link. This compact transmitter, when put into a weatherproof
housing, can operate under the most adverse conditions.
This transmitter can be used in Multiple Address Systems where remote data can be sent to a
central point over long distances.

Specifications

Frequency Range
FCC Acceptance
Channel Spacing
Number of Channels
RF Power Out
Modulation
Data Rate
Frequency Stability
Spurious Output
Output Return Loss
Load VSWR

Part 15 & Part 90 (pending)

25 kHz / 12.5 kHz (selectable)

4000 @ 25 kHz / 8000 @ 12.5 kHz

100 mW (Part 90) / 1 mW (Part 15)

+ 5 kHz (adjustable)

Ordering Options

Power output Option #

1mW W0 (Part 15)

100mW (Part 90)

860-960 MHz

up to 9600 bps

2 ppm

< -40 dBm

> 15 dB

∞

no damage

+5 VDC Line
+12 VDC Line
Transmit Key Line
Continuous Transmission
Key Time to Data Recovery
Reverse Polarity Protection
Temperature Range
Size
Weight
Connectors RF Out

+5V, +12V, KEY

Data

25 mAcontinuous / 170 mAtransmit

4.85” x 2.2” x 0.6”

17 mA continuous

< 1mA @ 5 VDC

YES

1.6 ms
YES

-30 to +60 C

4.45 oz.

SMB Male

1000 pf feed-thru cap

100 pf feed-thru cap

DATA IN

OP AMP

+12V

+5V1 +5V2 +5V2

OSCILLATOR X3 X3 X2

BPF

BAND PASS

FILTER

AMP

+5V2

X2

X2

FREQUENCY

DOUBLER

BPF

BAND PASS

FILTER

+5V3 +5V3

LPF

LOW:

PASS

FILTER

RF OUT

12V IN

KEY

+5V1

MULTIPLIER

KEY

CIRCUIT

STAGE

5 VOLT

REG

5 VOLT

REG

AMP

+5V2

+5V3