Although LabSat 4 can be configured to have a bandwidth of up to 60 MHz and a quantization of up to 12 for each of the 3 RF channels (depending on the model), the different combinations of these settings may increase the data rate to a level that is incompatible with the unit. You must, therefore, keep this limitation in mind when you configure your unit.

In most cases, we recommend using a quantization setting of 1-4 bits, as most receivers do not require a resolution greater than this. However, if you are performing special signal analyses and controls, you may need to use 8 or 12 bits.

You can use the tables below to confirm that your configuration is valid. However, these tables are only accurate if you use the same configuration for each active RF channel. If you need to use different configurations for each active RF channel, you can connect to the LabSat 4 Web Server or access the demo version of the LabSat 4 Web Server to check your configuration. The Frequency Setup Menu has a record rate usage bar that will illustrate the used data rate compared to the available data rate based on your current configuration. It will display a warning if your configuration is invalid.

LabSat 4 Web Server Centre Frequency and Record Rate Usage

The tables below provide and illustrate the possible setting combinations with the validity of the data rate in configurations where the active RF channels have identical configurations.

Symbol	Meaning
	Suitable combination of bandwidth and quantization
	Not suitable combination of bandwidth and quantization
	RF only (digital signals cannot be configured)

1-Channel Configuration #

Bandwidth	1-bit	2-bit	4-bit	8-bit	12-bit
60 MHz
56 MHz
52 MHz
48 MHz
44 MHz
40 MHz
36 MHz
32 MHz
30 MHz
28 MHz
24 MHz
20 MHz
16 MHz
10 MHz

2-Channel Configuration #

Bandwidth	1-bit	2-bit	4-bit	8-bit	12-bit
60 MHz
56 MHz
52 MHz
48 MHz
44 MHz
40 MHz
36 MHz
32 MHz
30 MHz
28 MHz
24 MHz
20 MHz
16 MHz
10 MHz

3-Channel Configuration #

Bandwidth	1-bit	2-bit	4-bit	8-bit	12-bit
60 MHz
56 MHz
52 MHz
48 MHz
44 MHz
40 MHz
36 MHz
32 MHz
30 MHz
28 MHz
24 MHz
20 MHz
16 MHz
10 MHz