Microbit RRC-1258 MkII(s) Uživatelský manuál stáhnout pdf (Strana 22)

112

Computers in Amateur Radio

width which the audio channel uses is approximately 85kbps using

mode ‘0’ and the codec G711 at a sampling rate of 8KHz. Other rates

are available and used to suit your needs.

The control channel uses far less bandwidth and is not specified

at the time of writing.

Setting up the Controllers

Setting up the controllers is relatively straightforward. Detailed infor-

mation can be found on the manufacturers web site.

First of all there are five jumper leads inside to configure in each

controller. Four positions will depend on the make of your radio and

the fifth is to provide power to your microphone. After this you need

to set up the IP addresses for each unit. I used 192.168.2.200 and 201

for each controller.

The controllers each have a built-in web server, so having as-

signed them their own IP addresses and using port 80, log into them

and configure a few basic options like the FQDN (Fully Qualified

Domain Name) and the audio quality. There are more advanced

options, but they do not need to be set to get you going. Configuring

the controller at the remote end to have port 8091 for web operation

is ideal as the Web Switch will be configured for port 8090. As you will

see later, it too has a web server running for remote set up. The Web

Servers in both units have username and password control, so the

units are relatively safe from an outside attack.

Having set up the basics (by referring to the web site), the router

at the remote end needs to have its ports opened to enable the two

units to communicate and for you to be able to administer the con-

troller and the Web Switch.

The ports which need to be opened and the protocol used are:

8090 - Web administration of the Web Switch (TCP)

8091 - Web administration of the remote controller (TCP)

5060 - SIP in/out port (UDP)

11000 - Audio in/out port (UDP)

12000 - Command in/out port (UDP)

There is no need to open any ports on your router at home, as

all traffic is initiated by the controller in the shack, which then opens

outbound ports automatically in your router; it’s just inbound ports

which need to be opened at the remote end. You can now type an

FQDN like http://remote.dyndyns-net.org:8091 in your web browser

and be presented with the controller’s administration page.

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Microbit RRC-1258 MkII(s) Uživatelský manuál Strana 22