Psion Inc 7505BTHC25 Manuel D’Utilisation

Preamble

Type of radio preamble or head-
ers.

Auto, Short, Long

Auto

Ping Payload

Amount of data to be transmitted 
on a ping.

Bytes: 32, 64, 128, 256, 
512 & 1024

32

Ping Timeout ms Amount of time in milliseconds 

that passes without a response 
before ping request is considered 
a failure.

Integer from 0 to 30000.

5000

Ping Delays ms

Amount of time in milliseconds 
between successive ping 
requests.

Integer from 0 to 
7200000.

1000

Roam Delta

Amount by which second AP’s 
RSSI must exceed the moving 
average RSSI for the current AP 
before the radio will attempt to 
roam to a second AP.

dBm: 5, 10, 15, 20, 25, 
30, 35

15

Roam Period

Following an association or roam 
scan (with no roam), the number 
of seconds the radio 
collects RSSI scan data before 
considering roaming.

Seconds: 5, 10, 15, 20, 
25, 30, 35, 40, 45, 50, 55, 
60

10

Roam Trigger

If RSSI from AP is less than 
roam trigger value, radio per-
forms roam scan or probes for an 
AP with stronger signal.

dBm: -50, -55, -60,
-65, -70, -75

-70

RTS Thresh

Packet size above which 
RTS/CTS is required on link.

An integer from 0 to 
2347.

2347

RX Diversity

Defines how to handle antenna 
diversity when receiving data 
from AP.

-On-Start on Main: On 
startup, use main 
antenna.
-On-Start on Aux: On 
startup, use auxiliary 
antenna.
-Main only: Use main 
antenna only.
-Aux only: Use auxiliary 
antenna only.

On-Start on 
Main