Receiving Sensitivity; Recommended Working Frequency; Tested Range - Ebyte E32 Series User Manual

SX1278 Wireless Module

2.3.2 Receiving sensitivity

Model
E32-TTL-100
E32-TTL-100S1
E32-T100S2
E32-TTL-500
E32-TTL-1W
E32-433T30S

2.3.3 Recommended working frequency

Model
E32-TTL-100
E32-TTL-100S1
E32-T100S2
E32-TTL-500
E32-TTL-1W
E32-433T30S

2.4 Tested range

Model
E32-TTL-100
E32-TTL-100S1
E32-T100S2
E32-TTL-500
E32-TTL-1W
E32-433T30S
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd.
Min Typ
-144.0 -146.0 -147.0
-144.0 -146.0 -147.0
-144.0 -146.0 -147.0
-145.0 -147.0 -148.0
-145.0 -147.0 -148.0
-145.0 -147.0 -148.0
Min Typ
410 433
410 433
862 868
862 868
900 915
900 915
Min Typ
2700 3000
2700 3000
2700 3000
4500 5000
7200 8000
7200 8000
Max Unit
dBm
●
coding rate of 4/5 and spreading factor of 12;
dBm
●
has ± 0.1% error, so error accumulation will occur since
dBm
multiple LRC components are used in the whole RF circuit,
and the transmitting currents will be different at different
dBm
modules;
●
dBm
communication range will be shortened while increasing
the air data rate.
dBm
Max Unit
441 MHz
441 MHz
●
893 MHz the modules to meet all the parameters
●
893 MHz
868.0MHz、915MHz etc. is advisable.
931 MHz
931 MHz
Max Unit
3300 m
●
polarization. The height is 2.5 meters;
3300 m
● The interval between each data packet is 2s, sending 100
packets with 30 bytes in each packet, the range at data lose
3300 m
rate of lower than 5% is valid range;
5500 m
●
we conducted the tests under in clear weather with little
8800 m
electromagnetic interference at suburb areas；
● Distance may be shorter with interference or obstacles.
8800 m
Remarks
The sensitivity is tested under the air data rate 0.3kbps，
Due to the error of the materials, each LRC component
The receiving sensitivity
Remarks
To work within the recommended frequency can assure
To avoid the crowded integral frequency like 433.0MHz、
Remarks
The external antenna used is of 5dBi gain and vertical
In order to obtain meaningful and reproducible results,
E32 Series User Manual
will be reduced and
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