AKG MP 40 User Manual download pdf (Page 48)

100

MODULAR SOLUTIONS FOR PROFESSIONAL REQUIREMENTS

SETTING UP MULTICHANNEL SYSTEMS

46 www.akg.com

Frequency bands

Each of the six bands contains legal frequencies and pre-

sets for reliable, intermodulation-free operation. Special

frequency versions within each band are available on

request. An optional programmer allows AKG staff to pro-

gram these frequencies either on location (one user pre-

set) or at your local AKG Service Center (all presets).

www.akgfrequency.at

The AKG Frequency Management Program checks all the radio links you are planning to

use for compatibility and potential intermodulation problems.

To make sure your wireless system will operate smoothly, we recommend checking both

the frequencies your system is going to use and the frequencies of local radio and TV sta-

tions, etc. with this program before setting up the system.

RF output (ERP)

The HT 4000 and PT 4000 transmitters are available in

three different RF output versions. Each transmitter is

delivered with the maximum RF output (ERP) approved for

the country or region where it will be used. The RF output

of a transmitter can be changed, but this can only be

done by AKG Vienna.

Multichannel example 1

Each frequency band is 30 MHz wide and comprises up to

18 intermodulation-free frequencies (depending on local

frequency plans). If you need more than 18 frequencies,

you can use several bands. Make sure to select bands

with the widest possible frequency spacing between

them.

Multichannel example 2

Where local frequency plans limit the available frequency

range to two bands, you can still set up a large multi-

channel system. Bands 1 and 2 together provide about 25

usable frequencies in this example. Again, use bands

with the widest possible spacing between them!

BAND 1

650-680

MHz

BAND 1

18 channels

BAND 3

18 channels

BAND 5

18 channels

BAND 2

680-710

MHz

BAND 3

720-750

MHz

BAND 4

760-790

MHz

BAND 5

790-820

MHz

BAND 6

835-863

MHz

10 mW

ERP

20 mW

ERP

50 mW

ERP

BAND 1 BAND 2

+ = approx. 25 channels

Calculating intermodulation-free radio fre-

quencies requires an enormous amount of

computing power. AKG used up to 150

computers operating day and night to cal-

culate new sets of carrier frequencies

unless the computers were needed for

other purposes. The results are available to

all users of AKG wireless systems on the

Internet at www.akg.com/frequencies. The

Frequency Management Program available

on the AKG homepage lets you check all

the radio frequencies you are planning to

use for compatibility, making it easy to set

up an AKG multichannel system that works

perfectly from the start.

* ERP = Equivalent Radiated Power

* * *

** depending on optimum antenna placement

AKG WMS MULTICHANNEL TECHNOLOGY

= 54 channels**

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AKG MP 40 User Manual Page 48

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