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Technical specification of HR-1028:
PERFORMANCE |
|
Power Output: |
≤500mW) <customized> |
RF Line-of-sight Range: |
2Km@9600bps, 3Km@1200bps |
RF Effective Rate: |
1200~38400bps optional, 57600bps customized |
Receiver Sensitivity: |
-123dBm@1200bps, -118dBm@9600bps |
NETWORKING |
|
Networking Topology: |
Point-to-point, point-to-multipoint |
POWER |
|
Supply Voltage: |
5V DC(customized according requirement) |
Transmitting Current: |
<350mA |
Receiving Current: |
<28mA (TTL connect) |
Sleeping Current: |
<20µA |
GENERAL |
|
Frequency Band: |
433MHz(Default), 450MHz~915MHz(customized) |
Communication Mode: |
Half-duplex |
Channel: |
8(Default), 16/32(customized) |
Interface: |
RS-232/RS-485/USB/TTL optional |
PHYSICAL PROPERTIES |
|
Size: |
80mm*45mm*19mm (without antenna port) |
Antenna Impedance: |
50Ω SMA (multiple antenna options available) |
Operating Temperature: |
-35~+75 C |
Frequency Stability; |
±2.5ppm |
Interface definition:
Pin No. |
Pin name |
Description |
Level |
Remands |
1 |
GND |
Grounding of power supply |
|
|
2 |
Vcc |
Power supply DC |
5 V |
|
3 |
RXD/TTL |
Serial data receiving end |
TTL |
|
4 |
TXD/TTL |
Serial data transmitting end |
TTL |
|
5 |
DGND |
Digital grounding |
|
|
6 |
A (TXD) |
A of RS-485 or TXD of RS-232 |
|
|
7 |
B (RXD) |
B of RS-485 RXD of RS-232 |
|
|
8 |
SLEEP |
Sleep control (input) |
TTL |
Low level sleep |
9 |
RESET |
Reset (input) |
|
|
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