Receiver 1 Diversity Operation 2 Type of Antenna

Receiver 1. Diversity Operation 2. Type of Antenna 3. Antenna Signal Distribution

RF – Signal Distribution Antenna Cable Loss Receiver Distribution Loss in passive Splitter 1 d. B 3 d. B 10 % 30 % 6 10 d. B 50 % d. B 70 % 20 d. B 90 % 40 d. B 99 % Loss Loss

RF-Cable Loss d. B 100 m 50 d. B / 100 m 25 d. B / 100 m 15 d. B / 100 m 8 Att 5 RG 13 2 RG 00 H 1 Frequency MHz

Antenna Splitter Distribution Loss Splitter 1 : 2 ASP 212 - 4 d. B Splitter 1 : 3 ASP 113 - 7 d. B Splitter 1 : 4 ASP 114 - 8 d. B

Antenna Booster 200 µV RF-Signal S/N 40 d. B 20 µV RF-Signal 2 µV Noise Booster 20 d. B + 20 d. B Cable - 20 d. B 20 µV

Antenna Splitter ASP 1 1 x 1: 8 - 4 d. B 1: 2 1: 4 - 8 d. B

? Splitter 1 : 12 - 7 d. B 1: 2 3 1: 4 - 8 d. B Total loss - 15 d. B

Antenna Level +10 d. B - 5 d. B 20 m RG 213 +10 d. B - 4 d. B 1: 2 1: 3 EM 3032 EM 3032 1: 3 - 7 d. B - 4 d. B Loss - 20 d. B Gain +20 d. B Total 0 d. B

EM 550

EM 550 ? Built-in Power Supply 90 – 260 Volt Transformer balanced Output -20. . . + 18 d. Bu adjustable

RF-Signal Distribution EM 550 OUT U In = U Out - 8 d. B Mixer ANT IN BPF - 2 d. B Amp + 10 d. B IF-Amp + 8 d. B OSC

Antenna A B EM 550 NEW ! Built in Antenna Distribution for up to 16 Channels No external Splitter required !

System Design d. B Calculation Range Frequencies

d. B calculation d. B 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 U 1/U 2 1 1, 12 1, 26 1, 41 1, 59 1, 78 2, 00 2, 24 2, 51 2, 82 3, 16 3, 55 3, 98 4, 47 5, 01 5, 62 6, 31 7, 08 7, 94 8, 91 10, 00 d. B U 1/U 2 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 10, 0 11, 2 12, 6 14, 1 15, 8 17, 8 20, 0 22, 4 25, 1 28, 2 31, 6 35, 5 39, 8 44, 7 50, 1 56, 2 63, 1 70, 8 79, 4 89, 1 100 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 100 112 126 141 159 178 200 224 251 282 316 355 398 447 501 562 631 708 794 891 1000

Range / Power Receiver-Antenna 0 d. B URX= 200 µV

Intermodulation F 1 F 2 IM 3 499, 6 IM 3 : 2 F 2 - F 1 2 F 1 - F 2 500, 0 500, 4 500, 8 F (MHz)

Receiver Intermodulation RF-Gen. Freq. : F 2 Receiver Freq. : IM 2 x. F 2 -F 1 RF-Gen. Freq. : F 1 = d. B IM 1 µV F 1 F 2 IM

Intermodulation Safety against IM Antenna Level : 10. 000 µV 80 d. B -- 7 x more safety EM 1046 3. 000 µV 70 d. B -- 3 x more safety EM 3532 EM 550 2 x more safety 1. 000 µV 60 d. B -- IM-Range of Competitors 300 µV 50 d. B -100 µV 40 d. B -- AKG Beyer Lectrosonic Micron Samson Shure Sony; TOA

16 Freq´s in 24 MHz > 1700 IM-Products ! 16 Freq´s Min. carrier spacing : 400 KHz Min. IM spacing : 100 KHz

In. Ear Transmitter Antenna

Omnidirectional Antenna

RF Signals on Antenna

Directional Antenna A 2003

Receiver Blocking 1 Level for 26 d. B S/N RF-Gen. 800 MHz F: 800 MHz Mod. : 1 k. Hz Receiver RF-Gen. F: 799 MHz unmod. 2 (800 MHz) 799 MHz 2 1 U 1 / U 2 = Blocking Level for 10 d. B S/N 799 800 MHz

Receiver Blocking EK 3053 = 80 d. B = 10. 000 µV Antenna Voltage in 15 cm distance to a 30 m. W TX : = 100. 000 µV 20 d. B Overload ?

Receiver Blocking Bandfilter Ant 32 MHz RF-Pre. Amp

Frequency Setup ----8 MHz----- Wireless Mic´s Wireless IEM F MHz

Receiver Intermodulation Antenna Voltage in 15 cm distance to a 30 m. W TX : Intermodulation EK 3053 = 63 d. B = 100. 000 µV = 1. 500 µV 37 d. B Overload ?

In Ear - Frequencies 200 k. Hz IM-spacing = better IM-safety

Multi-Channel IEM

Transmitter IM with Telescopic Antenna

Transmitter Combiner AC 1

Multi-Channel In. Ear Monitoring Antenna 4 x SR 300 AC 1

Transmitter Combiner AC 1 IN IN OUT + 10 d. B 20 m. W 200 m. W - 8 d. B - 2 d. B + 10 d. B 20 m. W 200 m. W 12 V 1. 5 A 20 m. W Splitter 4: 1 BPF

Transmitter IM with Telescopic Antenna

Transmitter Signal at Combiner Output

AC 3000

In. Ear - Monitor -IEM and wireless Microphones in separated Frequency Ranges -special calculated Frequencies for IEM (Non-Diversity / IM-safety) -active Antenna Combiner for multichannel use -external (directional) Antenna -short cable length between Transmitter and Antenna -minimum distance RX to TX-Antenna 4 m -Mono mode for critical conditions (wide range)