DiSEqC-Switch EMS 21 (2x1) 

DiSEqC-Switch with 2 Inputs and 
1 Output for receiption of 2 satellites 
for 1 satellite receiver. 



 To enlarge click on picture

 Technical Specifications 
No of Inputs  

SAT: 2 (F) 

No. of Receiver-Outputs

1 (F)

Frequency-Range (MHz)

SAT: 950-2150 MHz 

Thru-Loss Output @ 950 MHz

- 2 dB +/- 0,5 dB

Thru-Loss Output @ 2300 MHz

- 2,5 dB +/- 0,5 dB

Return-Loss Inputs 

> 8 dB (typ. 10 dB) 

Return-Loss Output

> 8 dB (typ. 10 dB) 

Isolation Inputs > 35 dB (typ. 40 dB)
Screening-Immunity

47-300 MHz 85 dB / 300-470 MHz 80 dB
470-1000 MHz 75 dB / >1000 MHz 55 dB

Max. Current from Receiver

30 mA

Max. Current to LNB

400 mA

Selection Satellite-Inputs

DiSEqC 2.0

Current to LNB 

Yes

Short Circuit protection max. (test passed) 

2 A

Temp. Range / Usage

- 20...+ 60 ° C / Indoor + Outdoor Use

Dimensions Body

85 x 48 x 21 mm

Subject to technical Changes                                                          © 2003 by Skytronic GmbH