Справочник Пользователя для FreeWave Technologies Inc. 218151431519
760 Mhz Data Transceiver Users Manual
LUM0000XX Rev A
Version 1.0
17
Edit Radio Transmission Characteristics
(0)
F
REQ
K
EY
The FreqKey parameter should always be set to operate in single channel mode.
To set FreqKey for Single Channel, select option 0 “FreqKey”, then select option F for more options.
Select option 1 for Single Channel, then select the appropriate Frequency Channel.
Select option 1 for Single Channel, then select the appropriate Frequency Channel.
S
ETTING
X
MIT AND
R
CV
F
REQUENCIES
The 760MHz Data Transceiver operates by transmitting on one frequency and receiving on a second
unique frequency.
unique frequency.
In order to program these channels, please refer to the Channel and Frequency lists at the end of this
document.
document.
Select option 0 Edit Hop Table, and then select the appropriate Channel Number to edit. Enter the
appropriate Xmit channel number, from the Channel List, and press enter, and then enter the appropriate
Rcv channel number, from the Channel List.
appropriate Xmit channel number, from the Channel List, and press enter, and then enter the appropriate
Rcv channel number, from the Channel List.
Select option 1 For Single Channel, then select the appropriate Channel number to use the frequencies
just programmed.
just programmed.
(1)
AND
(2)
M
AX
P
ACKET
S
IZE AND
M
IN
P
ACKET
S
IZE
The Max and Min Packet Size settings and the RF Data Rate determine the number of bytes in the
packets. Throughput can be enhanced when packet sizes are optimized. In Point-to-Point mode, the Max
and Min Packet Settings will not have material impact on throughput unless 115.2 KBaud is desired.
However, this may have an impact on latency. For example, if small amounts of data are sent and large
packet sizes are selected, there would be a certain amount of time “wasted” between each packet.
packets. Throughput can be enhanced when packet sizes are optimized. In Point-to-Point mode, the Max
and Min Packet Settings will not have material impact on throughput unless 115.2 KBaud is desired.
However, this may have an impact on latency. For example, if small amounts of data are sent and large
packet sizes are selected, there would be a certain amount of time “wasted” between each packet.
The following 6 tables provide the information to determine optimum setting values.
The default settings for Max and Min packet size and RF Data Rate are 8, 9, and 3, respectively.