Funkwerk CAB-RTNC-1m 600500 Benutzerhandbuch
Produktcode
600500
3
Jumper cable RTNC Plug- N Plug:
connects the device (Wx000) to the surge arrester, 50cm high quality, high flexible low loss cable.
connects the device (Wx000) to the surge arrester, 50cm high quality, high flexible low loss cable.
RTNC plug
N plug
Antenna cable N plug – N jack:
connects the antenna to the surge arrester, available in 5m and 20m high quality, high flexible low loss cable. Two or more cables
can be connected in series to increase length at reduced distances.
connects the antenna to the surge arrester, available in 5m and 20m high quality, high flexible low loss cable. Two or more cables
can be connected in series to increase length at reduced distances.
Cable losses:
Typical cable loss: 0,266dB/m@2,44GHz; 0,426dB/m@5,5GHz
Typical connector loss: 0,125dB@2,44GHz; 0,25dB@5,5GHz
Typical connector loss: 0,125dB@2,44GHz; 0,25dB@5,5GHz
Cable losses of assembled cables:
0,5m RTNC Plug – N Plug: 0,4dB@2,44GHz; 0,7dB@5,5GHz
5m N Plug – N jack: 1,6dB@2,44GHz; 2,6dB@5,5GHz
20m N Plug – N jack: 5,6dB@2,44GHz; 9dB@5,5GHz
0,5m RTNC Plug – N Plug: 0,4dB@2,44GHz; 0,7dB@5,5GHz
5m N Plug – N jack: 1,6dB@2,44GHz; 2,6dB@5,5GHz
20m N Plug – N jack: 5,6dB@2,44GHz; 9dB@5,5GHz
Insertion loss of surge arrester: 0,5dB@2,44GHz; 0,9dB@5,5GHz
e.i.r.p. and regulatories:
In Europe the maximum e.i.r.p. (Equivalent Isotropic Radiated Power) must not exceed 20dBm @2,4GHz!
In Europe the maximum e.i.r.p. (Equivalent Isotropic Radiated Power) must not exceed 20dBm @2,4GHz!
At 5 GHz the regulatories are different from country to country. Usually 23dBm must not be exceeded when using Master-Slave DFS
(Dynamic Frequency Selection).
(Dynamic Frequency Selection).
To calculate the maximum RF power subtract Antenna gain and add the cable losses to max. e.i.r.p.
Example, Solution1: Ant. Gain is 13,5dBi@2,4GHz, the cable Loss is (0,7+0,4+0,5+1,6)dB=3,2dB. This results in a maximum
transmit power (in dBm) of 20-13,5+3,2=9,7. If this power can’t be set, you must use the next smaller value, e.g. 9dBm.
Example, Solution1: Ant. Gain is 13,5dBi@2,4GHz, the cable Loss is (0,7+0,4+0,5+1,6)dB=3,2dB. This results in a maximum
transmit power (in dBm) of 20-13,5+3,2=9,7. If this power can’t be set, you must use the next smaller value, e.g. 9dBm.
Fade Margin:
Definition: The difference between the receiver signal input level and the receiver sensitivity. Fade margin is usually considered the
safety factor allowing the system to remain operating under additional forms of attenuation.
We recommend a fade Margin of ~8 … 10 dB for 2,4 GHz systems and around 6dB for 5 GHz systems (due to a lower noise level).
The fade margin can be set to zero, but this can result in a unstable system, lower data rates and losses of connectivity.
Definition: The difference between the receiver signal input level and the receiver sensitivity. Fade margin is usually considered the
safety factor allowing the system to remain operating under additional forms of attenuation.
We recommend a fade Margin of ~8 … 10 dB for 2,4 GHz systems and around 6dB for 5 GHz systems (due to a lower noise level).
The fade margin can be set to zero, but this can result in a unstable system, lower data rates and losses of connectivity.