OSDMCWSTATION-1Wireless Conference System

VCO RF-Amplifier Antenna Loop-Filter Prescaler PMB2313 Microcontroller PIC16C621 Synthesizer PMB2306 EEPROM 24LC02B Deviation Adjust 4MHz- Reference- Oscillator LED "DC" +5V +5V +6V +5V +5V +5V Frequency Adjust AF- Input- Connector Input-Selector + AF-Preampli fier + Preemphasis + Compression Power- Supply- Unit AF- Symetry Block Diagram TS 500 Level High/Low LED "PEAK" Power ON/OFF AKKU +6V +5V +6V +5V B a t t e r y C o n t r o l enable Channel- Selector

B 2 4 - 6 5 5 . 0 0 - 0 0 B N 5 0 - 1 6 3 5 / A S c h a l t b i l d S E M 5 0 0 H F n e u 8 . 0 3 . 1 1 Z a r d a i b e y e r d y n a m i c ) ) ) ) T h e r e s i e n s t r . 8 D - 7 4 0 7 2 H e i l b r o n n A e n d e r u n g T a g N a m e A u s . 1 - - - M a s s s t a b F u e r d i e s e Z e i c h n u n g b e h a l t e n w i r u n s a l l e R e c h t e v o r . O b e r f l a e c h e : O r C A D / . . S e i t e v o n 1 9 9 9 T a g N a m e B e a r b . G e p r . E r s a t z f u e r : E r s e t z t d u r c h : C 1 5 3 3 p F 3 8 5 . 4 0 9 C 3 7 2 2 0 p F 3 8 3 . 8 7 2 R 5 5 6 2 R 3 8 1 . 3 1 4 C 4 1 2 2 p F 3 8 3 . 0 7 4 C 5 2 , 2 u F 5 1 7 . 1 9 4 C 1 2 , 2 u F 5 1 7 . 1 9 4 C 4 0 2 . 2 u F 5 1 7 . 1 9 4 X 8 C L T 1 0 4 5 2 9 . 9 2 3 1357 2468 ++++ ++++ R 3 1 0 k 3 8 9 . 0 1 3 13 2 R 1 5 3 9 2 R 5 2 9 . 2 7 3 R 1 8 1 0 k 3 8 1 . 3 8 1 C 2 7 R 2 5 1 , 5 k 5 1 3 . 6 8 7 C 2 8 1 0 p F 3 8 3 . 0 3 1 R 2 6 1 k 3 7 1 . 4 1 6 R 2 1 4 7 R 5 3 8 3 . 4 4 9 X 1 0 5 2 9 . 9 2 3 1357 2468 ++++ ++++ C 1 8 1 0 n F 5 1 7 . 2 0 8 C 3 4 6 8 p F 3 8 3 . 0 6 6 L 7 8 , 0 n H 5 2 8 . 3 1 5 C 1 6 3 3 p F 3 8 5 . 4 0 9 C 2 1 N 3 P M B 2 3 1 3 T 5 2 5 . 5 5 3 1234 5678 I n V s s S W Q G n d M o d n . c . I n C 3 2 3 , 5 / 1 0 p F 5 3 1 . 2 7 8 R 2 9 5 k 6 2 5 2 9 . 9 9 0 C 3 5 2 2 0 p F 3 8 3 . 8 7 2 C 3 6 1 0 0 p F 3 8 3 . 0 9 0 R 2 7 8 2 , 5 k 5 1 3 . 6 6 0 C 3 1 2 2 p F 3 8 3 . 0 7 4 B 1 4 M H z 5 2 7 . 2 7 0 C 3 9 3 3 0 p F 5 2 1 . 5 9 0 V 1 1 B C W 6 0 3 2 3 . 7 6 4 C 9 1 0 n F 3 8 0 . 3 8 5 R 3 8 6 , 8 1 k 3 8 1 . 3 7 3 + C 7 3 3 u F / 1 0 V 3 8 8 . 1 6 5 + C 4 6 , 8 u F / 6 V 3 8 1 . 6 3 2 C 2 2 . 2 u F 5 1 7 . 1 9 4 L 3 4 7 0 n H 5 1 1 . 8 7 0 L 1 4 7 0 n H 5 1 1 . 8 7 0 X 6 3 1 4 . 8 7 0 1 X 9 3 1 4 . 8 7 0 1 X 7 3 1 4 . 8 7 0 1 X 5 3 1 4 . 8 7 0 1 X 4 3 1 4 . 8 7 0 1 C 1 0 1 p F 3 5 7 . 2 1 9 R 1 2 1 8 , 2 R 5 3 0 . 0 5 0 G 1 K S V - 5 M 5 2 1 . 8 1 7 12 3 4 56 BC G G MP C 4 4 1 , 8 p F 3 8 3 . 0 2 3 L 6 1 8 0 n H 5 2 5 . 2 5 1 L 2 4 7 0 n H 5 1 1 . 8 7 0 L 1 1 5 , 0 n 5 2 9 . 9 5 8 C 4 2 2 , 2 p F 3 7 9 . 6 4 6 C 2 5 2 2 p F 3 8 3 . 0 7 4 C 3 8 5 , 6 p F 3 8 3 . 1 0 4 C 2 9 1 p F 3 9 0 . 8 2 8 L 1 0 1 8 0 n H 5 2 5 . 2 5 1 L 1 2 1 8 0 n H 5 2 5 . 2 5 1 V 1 0 B F P 1 9 3 5 2 9 . 9 1 5 12 34 BE C E C 2 6 C 2 3 3 3 p F 3 8 5 . 4 0 9 C 3 0 1 p F 3 9 0 . 8 2 8 L 9 5 , 0 n 5 2 9 . 9 5 8 L 8 5 , 0 n H 5 2 9 . 9 5 8 C 1 7 1 , 5 p F 3 7 1 . 4 2 4 R 2 4 1 0 0 R 3 9 7 . 8 6 5 R 1 0 3 9 , 2 k 3 7 1 . 3 8 6 R 7 4 7 , 5 R 3 8 3 . 4 4 9 R 3 2 1 0 R 5 1 2 . 6 9 9 R 2 8 4 7 R 5 3 8 3 . 4 4 9 R 6 1 0 k 3 8 1 . 3 8 1 R 8 0 R 5 2 4 . 9 1 3 C 2 4 3 9 p F 3 8 8 . 1 8 1 V 9 B F 1 0 0 5 5 2 9 . 9 0 7 12 34 G 2 G 1 SD V 8 B C W 6 0 3 2 3 . 7 6 4 R 1 9 2 7 4 k 5 2 4 . 4 4 1 V 1 3 5 3 7 . 1 9 5 M C L 4 1 4 8 C 2 2 2 , 2 u F 5 1 7 . 1 9 4 R 3 4 1 M 3 8 1 . 2 7 6 C 1 9 4 , 7 p F 3 5 7 . 2 1 9 R 3 5 5 6 , 2 R 5 3 6 . 8 2 2 R 9 05 2 4 . 9 1 3 R 3 6 2 2 k 1 3 8 1 . 4 3 8 C 3 2 , 2 u F 5 1 7 . 1 9 4 R 3 7 0 R 5 3 7 . 2 0 9 C 8 2 , 2 u F 5 1 7 . 1 9 4 C 3 3 2 2 0 n F 5 1 7 . 2 3 2 R 3 9 5 6 , 2 R 5 2 6 . 1 3 4 C 4 7 2 7 p F 3 8 3 . 8 6 4 C 4 5 2 7 p F 3 8 3 . 8 6 4 N 1 S - 8 1 2 5 0 S G U P 5 3 0 . 0 1 8 1 3 2 V I N GND V O U T C 4 6 2 7 p F 3 8 3 . 8 6 4 N 4 B C R 4 0 0 R 5 2 9 . 8 8 5 12 34 EB V s C R 3 1 1 0 R 5 1 2 . 6 9 9 R 3 0 4 7 R 5 3 8 3 . 4 4 9 N 2 P M B 2 3 0 6 T 5 2 5 . 3 4 0 1234567 891 0 1 1 1 2 1 3 1 4 R e f _ i n G n d E n a b l e D a t a C l o c k V d d M o d F 1 V s s 1 P D o u t V d d 1 M F 0 1 M F 0 2 L D C 4 3 3 3 p F 3 8 5 . 4 0 9 A n t e n n e n a n s c h l u ß B a t t . - B a t t . + 2 1 4 . 1 0 . 9 9 Z a r d a i SEM 500 RF

Reference Oszillator VCO Loop Filter Synthesizer Prescaler Reference Oszillator B 24-654.00-00 BN 50-1634/A Schaltbild TS 500/ HF neu 3.02. 11 Zardai beyerdynamic)))) Theresienstr. 8 D-74072 Heilbronn AenderungTagNameAus. 1--- Massstab Fuer diese Zeichnung behalten wir uns alle Rechte vor. Oberflaeche: OrCAD / . . Seitevon 1999TagName Bearb. Gepr. Ersatz fuer: Ersetzt durch: C139 xxx 318.914 G1 KSV-5M 521.817 1 2 34 5 6 B C GG M P C130 1.5pF 371.424 R133 47R5 383.449 R125 22k1 381.438 R132 10k 381.381 R127 200R 524.468 R130 39k2 371.386 R121 10k 381.381 C102 1p 390.828 R120 47R5 383.449 R135 56R2 536.822 C129 10n 517.208 R102 33k2 381.454 R131 22k1 381.438 R124 0R 524.913 R109 47R5 383.449 L101 180nH 525.251 C132 33pF 385.409 X104 Loetstift 314.870 1 R134 22k1 381.438 R117 1M 381.276 R137 0R 537.209 C113 68p 383.066 R103 10R 512.699 R106 100R 397.865 L105 8.0n 528.315 L107 180n 525.251 L108 5.0nH 529.958 R126 C128 10n 517.208 + C127 33uF 388.165 X105 CLT 104 529.923 1 3 5 7 2 4 6 8 + + + + + + + + L109 5.0nH 529.958 L110 5.0nH 529.958 R108 10R 512.699 N102 BCR400R 529.885 1 2 3 4 E B Vs C R112 274k 524.441 R105 56.2R 526.134 C117 470nF 521.528 C122 2.2pF 379.646 L106 180n 525.251 V109 BCW60 323.764 X101 CLT 104 529.923 1357 2468 ++++ ++++ C136 10n 380.385 R129 22k1 381.438 C120 1p 390.828 C109 220p 383.872 C125 10n 517.208 V101 BF1005 529.907 1 23 4 G2 G1S D N105 PMB 2306 525.340 1 2 3 4 5 6 78 9 10 11 12 13 14 Ref_in Gnd Enable Data Clock Vdd ModF1 Vss1 PDout Vdd1 MF01 MF02 LD C126 2.2uF 517.194 C123 C107 220n 517.232 C108 33p 385.409 C134 10nF 517.208 C106 33p 385.409 C133 C119 22p 383.074C138 3.3pF 385.395 R123 562R 381.314 C111 22p 383.074 N104 PMB 2313 525.553 1 2 3 45 6 7 8 In Vss SW QGnd Mod n.c. In R138 6.81k 381.373 C121 5.6pF 383.104 C115 1p 390.828 C135 10n 517.208 C104 2u2 517.194 V108 BFP193 529.915 1 23 4 B EC E N103 16C621-04 529.869 1 2 3 4 5 6 7 8 910 11 12 13 14 15 16 17 18 RA2 RA3 RA4 n_MCLR Gnd RB0 RB1 RB2 RB3RB4 RB5 RB6 RB7 Vdd Osc2 Osc1 RA0 RA1 N101 24LC02B/SN 525.316 1 2 3 45 6 7 8 A0 A1 A2 GndSDA SCL WP Vdd C131 33pF 385.409 C140 27pF 383.864 C141 27pF 383.864 C142 27pF 383.864 C124 2.2uF 517.194 C116 39pF 388.181 + C103 6.8uF 381.632 R139 56,2 526.134 R104 18R 530.050 C110 4.7pF 357.219 C101 10nF 517.208 Antennenanschluß 2 29.07.99 Zardai VCO Loop Filter Prescaler Synthesizer PLL-SYSTEM

B 2 4 - 5 9 6 . * * - 0 0 B N 5 0 - 1 5 7 3 / A S E M 5 0 0 / N F 1 8 . 0 3 1 1 Z a r d a i b e y e r d y n a m i c ) ) ) ) T h e r e s i e n s t r . 8 D - 7 4 0 7 2 H e i l b r o n n A e n d e r u n g T a g N a m e A u s . 1 - - - M a s s s t a b F u e r d i e s e Z e i c h n u n g b e h a l t e n w i r u n s a l l e R e c h t e v o r . O b e r f l a e c h e : O r C A D / . . S e i t e v o n 1 9 9 8 T a g N a m e B e a r b . G e p r . E r s a t z f u e r : E r s e t z t d u r c h : R 1 7 1 0 k 3 8 1 . 3 8 1 R 1 1 2 2 1 R 5 2 1 . 6 0 4 R 8 4 k 7 5 3 8 1 . 3 6 5 R 1 9 4 7 5 R 3 8 1 . 3 0 6 R 1 2 4 7 k 5 3 7 1 . 3 7 8 R 1 8 3 k 9 2 5 2 9 . 5 7 5 R 2 9 2 2 k 1 3 8 1 . 4 3 8 C 4 0 1 0 n 5 1 7 . 2 0 8 C 3 6 1 , 5 n F 5 2 0 . 5 3 5 R 2 6 6 8 1 R 3 8 3 . 9 8 8 R 1 3 1 0 0 k 3 8 1 . 4 6 2 R 1 6 5 k 6 2 5 2 9 . 9 9 0 R 1 5 1 M 3 8 1 . 2 7 6 R 1 4 1 0 k 3 8 1 . 3 8 1 R 9 2 k 2 1 3 8 1 . 3 3 0 C 4 1 2 u 2 5 1 7 . 1 9 4 R 2 2 1 0 k 3 8 1 . 3 8 1 R 2 5 5 6 k 2 5 2 0 . 9 4 2 R 2 4 3 9 k 2 3 7 1 . 3 8 6 R 2 7 1 0 k 3 8 1 . 3 8 1 R 2 1 1 0 0 k 3 8 1 . 4 6 2 R 3 5 C 4 2 R 2 0 1 0 0 k 3 8 1 . 4 6 2 R 3 4 2 2 k 1 3 8 1 . 4 3 8 C 3 7 4 7 0 p F 3 7 9 . 8 7 5 R 3 2 2 2 1 R 5 2 1 . 6 0 4 N 1 A - 1 M C 3 3 0 7 8 D 5 2 5 . 5 3 7 1 4 2 8 3 N 1 B - 2 M C 3 3 0 7 8 D 5 2 5 . 5 3 7 7 4 6 8 5 R 6 3 3 2 k 3 8 1 . 4 7 0 R 3 1 1 0 0 k 5 2 7 . 2 8 9 1 3 2 R 3 3 k 3 2 3 8 1 . 3 5 7 R 7 6 8 1 k 5 1 7 . 2 7 5 R 1 1 0 k 3 8 1 . 3 8 1 R 5 3 3 k 2 3 8 1 . 4 5 4 R 1 0 4 7 k 5 3 7 1 . 3 7 8 C 3 8 2 u 2 5 1 7 . 1 9 4 C 1 0 2 u 2 5 1 7 . 1 9 4 C 1 4 2 u 2 5 1 7 . 1 9 4 C 1 2 2 7 0 p 5 2 8 . 2 1 8 C 1 9 2 u 2 5 1 7 . 1 9 4 C 2 0 2 u 2 5 1 7 . 1 9 4 C 2 6 1 0 0 p 3 8 3 . 0 9 0 C 2 3 2 n 2 5 1 7 . 8 5 2 C 4 2 u 2 5 1 7 . 1 9 4 C 5 2 u 2 5 1 7 . 1 9 4 C 1 7 2 u 2 5 1 7 . 1 9 4 C 1 5 2 u 2 5 1 7 . 1 9 4 C 7 2 u 2 5 1 7 . 1 9 4 C 1 8 2 u 2 5 1 7 . 1 9 4 C 2 2 2 u 2 5 1 7 . 1 9 4 C 2 1 2 u 2 5 1 7 . 1 9 4 C 2 4 1 5 n 5 2 4 . 4 3 3 V 3 B C X 7 0 J 3 5 6 . 1 0 7 C 6 4 7 n 5 1 7 . 2 2 4 C 2 2 2 0 n 5 1 7 . 2 3 2 C 1 1 0 n 5 1 7 . 2 0 8 N 2 N E 5 7 1 D 3 8 1 . 5 3 5 1 1 6 23 1 4 45678 9 1 0 1 1 1 2 1 3 1 5 R e c t . C a p . 1 R e c t . C a p . 2 R e c t . I n p . 1 G a i n C e l l I n 1 G a i n C e l l I n 2 G n d I n v . I n p . 1 R e s . R 3 / 1 O u t p u t 1 T H D T r i m 1 T H D T r i m 2 O u t p u t 2 R e s . R 3 / 2 I n v . I n p . 2 V c c R e c t . I n p . 2 X 1 C L T 1 0 4 5 2 9 . 9 2 3 1357 2468 ++++ ++++ C 2 5 1 0 0 n F 5 1 7 . 8 4 4 C 1 6 2 n 2 5 1 7 . 8 5 2 V 1 T L H G 4 4 0 5 3 7 0 . 2 2 3 C 2 9 2 u 2 5 1 7 . 1 9 4 + C 2 8 2 2 u / 1 6 V 3 8 6 . 0 3 0 C 2 7 1 0 n 5 1 7 . 2 0 8 S 1 T L 3 6 W 5 2 4 . 9 2 1 S 2 d d m 4 2 9 5 1 6 . 0 3 1 CC2 31 R 3 3 2 k 2 1 3 8 1 . 3 3 0 C 9 2 u 2 5 1 7 . 1 9 4 C 3 0 2 n 2 5 1 7 . 8 5 2 C 3 2 2 n 5 1 6 . 3 3 3 C 3 1 1 0 n 5 1 7 . 2 0 8 C 8 2 u 2 5 1 7 . 1 9 4 V 2 B C W 6 0 3 2 3 . 7 6 4 S 3 5 2 9 . 9 6 6 d d m 5 2 8 1 C 4 28 V 4 B C W 6 1 3 8 1 . 5 0 0 V 5 B C W 6 0 3 2 3 . 7 6 4 X 2 C L T 1 0 4 5 2 9 . 9 2 3 1357 2468 ++++ ++++ V 6 B C W 6 0 3 2 3 . 7 6 4 C 1 1 2 u 2 5 1 7 . 1 9 4 N 3 2 4 L C 0 2 B 5 2 5 . 3 1 6 1234 5678 A 0 A 1 A 2 G n d S D A S C L W P V d d V 7 B Z V 5 5 C 5 2 1 . 8 8 4 C 1 3 1 0 n 5 1 7 . 2 0 8 N 4 1 6 C 6 2 1 - 0 4 5 2 9 . 8 6 9 123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 R A 2 R A 3 R A 4 n _ M C L R G n d R B 0 R B 1 R B 2 R B 3 R B 4 R B 5 R B 6 R B 7 V d d O s c 2 O s c 1 R A 0 R A 1 C 3 2 2 u 2 5 1 7 . 1 9 4 C 3 3 2 u 2 5 1 7 . 1 9 4 C 3 4 2 u 2 5 1 7 . 1 9 4 C 3 5 2 u 2 5 1 7 . 1 9 4 X 3 C L T 1 0 4 5 2 9 . 9 2 3 1 3 5 7 2 4 6 8 + + + + + + + + R 2 3 1 k 3 7 1 . 4 1 6 C 3 9 1 0 n 5 1 7 . 2 0 8 R 2 3 k 3 2 3 8 1 . 3 5 7 R 4 1 0 0 k 3 8 1 . 4 6 2 R 3 0 2 2 k 1 3 8 1 . 4 3 8 R 2 8 2 2 k 1 3 8 1 . 4 3 8 + U _ B a t t U _ s t a b N F _ o u t z u m D r a i n z u m S o u r c e + U _ B a t t - U _ B a t t s e r i a l p r o g r a m m i n g c l o c k s e r i a l p r o g r a m m i n g d a t a z u r K a p s e l - G n d U _ D i g i t a l z u m P I C RF on/off nCS CLK I n - c i r c u i t - P r o g r a m m i e r - I n t e r f a c e 4 M H z z u m P I C V p p V d d V e r s t ä r k u n g m i t P r e e e m p h a s e N 1 B F = C _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 + j w V e r s t ä r k u n g Z e i t k o n s t a n t e ( ) R A R A R A + + * R B R B R B R B R A = R 1 0 R B = R 1 2 / 1 8 / 1 9 C = C 1 6 / 2 4 / 2 5 * * SEM 500 AUDIO

Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A GENERAL INFORMATION REQUIREMENTS Paragraph 2.983(a) Name of Applicant:Beyerdynamic Address of Applicant:56 Central Avenue Farmingdale, NY 11735 Name of Manufacturer:Beyerdynamic GmbH and Co. Address of Manufacturer:TheresientraBe8 D-74072 Heilbronn, Germany Paragraph 2.983(b) Equipment Identification:FCC ID: OSDMCWSTATION-1 Paragraph 2.02(c)(1) Necessary Bandwidth Determination: The necessary bandwidth was calculated utilizing the following formula: B n = 2M + 2DM = 67.9 kHz D = 15 kHz B n = 2(67.9) + 2(15) = 165.8 kHz Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A Paragraph 2.1046 Power Output, Effective Radiated Power Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A POWER OUTPUT, EFFECTIVE RADIATED POWER (Para. 2.1046) A. Measurement Procedure: The transmitter under test was placed on an 80 cm. high non metallic table on the Open Air Test Site with it’s antenna polarized vertically. A receive dipole antenna was placed three meters away from the transmitter. The turntable was rotated 360 degrees and the receive antenna was raised and lowered from 1 to 4 meters until a maximum reading was obtained. This reading was recorded. The transmitter under test was replaced with a dipole and signal generator. The signal generator was set to the frequency of the transmitter under test. The level of the signal generator was increased until the level was equal to that previously measured. The required input level from the signal generator in dBm was recorded and converted into milliwatts. This was the Effective Radiated Power of the transmitter. These measurements were recorded for the vertical and horizontal polarizations of the antenna. Setup of the test is shown below: B.Test Results: The results for the above test are submitted as a separate attachment named ERP.pdf. Pre Amp lif ier Spectrum Analyzer Broadband Antenna 3 M 4M Tes t Sa mp le Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A Paragraph 2.1047 Modulation Characteristics Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A MODULATION CHARACTERISTICS (2.1047) A. Measurement Procedure: An Audio Oscillator was Acoustically coupled to the microphone of the transmitter under test. The RF Output at the antenna terminals was loosely coupled to a modulation meter as shown below. The sound pressure level applied to the microphone was adjusted from 70dBspl to 120dBspl at each frequency listed herein. At each test frequency and level, the FM modulation was recorded. Setup of the above test is shown below: B. Test Results: The test data for this method are being submitted as a separate attachment, named modchar.pdf. EXTERNAL ATTENUATOR MODULATION METER AUDIO OSCILLATOR EUT AUDIO Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A Paragraph 2.1049 Occupied Bandwidth Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A OCCUPIED BANDWIDTH (PARA.2.1049) A.Measurement Procedure: An audio signal was Acoustically coupled to the audio microphone of the test sample. The RF output was monitored using a deviation meter. The audio input level was increased to produce a sound pressure level of 88dBspl. The RF output was then loosely coupled through external attenuators to a spectrum analyzer. The occupied bandwidth of the RF carrier, modulated at 88dBspl, was then measured. The above procedure was performed with the audio input frequencies of 1000, 2500, and 15000 Hz. The modulated signal must be within the template as specified by the applicable paragraph in Part 74. The above was performed at the low, middle and high frequencies. Setup of the test is shown below: B.Test Results: The results for the above test are submitted as a separate attachment named occbw.pdf. Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A Para. 2.1053 Field Strength of Spurious Radiation Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A FIELD STRENGTH OF SPURIOUS RADIATION (PARA 2.1053) A.Measurement Procedure: The test sample was then placed on an 80cm high wooden test stand which was located three meters from the test antenna on an FCC listed test site. The frequency range scanned was from the lowest frequency generated by the test sample to its tenth harmonic. In order to maximize the level of each emission observed from the test sample, the broadband antenna was tuned to the frequency of each emission and the test sample was rotated 360 degrees. To further maximize the each emission observed, the test antenna was both horizontally and vertically polarized, and then was raised and lowered from one to four meters from the ground plane. The limits for all of the spurious emissions was calculated utilizing the measured output power and the following equation: Limit <dB:V/M> = 20 log [{(49.2 x P T ) ½ /3} x 10 6 ] - (43 + 10 log P T ) The above procedure was performed at the lower, middle and upper frequencies of the device’s range. Setup of the test is shown below: B.Test Results: The results for the above test are submitted as a separate attachment named spurious.pdf. Pre Amplif i Spectr um A l Broadband Antenna 3 M 4M Tes t Sa mp le Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A Paragraph 2.1055 Frequency Stability Applicant: Beyerdynamic FCC ID: OSDMCWSTATION-1 Retlif Testing Laboratories Report No.: R-8170-1A FREQUENCY STABILITY MEASUREMENTS A.Measurement Procedure (Frequency vs. Voltage): The RF output of the test sample was coupled to a frequency counter through external attenuation. Using a Variable power supply and voltmeter, the input voltage was varied. M…

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TABULAR DATA SHEET CUSTOMER: MODEL No.: TEST SAMPLE: SERIAL No.: TEST SPECIFICATION: TEST METHOD: OPERATING MODE: TECHNICIAN:DATE: RETLIF TESTING LABORATORIES NOTES: DATA SHEETOF JOB No.: PARAGRAPH: Channel 8; 811.25 MHz MCW Wireless Microphone FCC ID: OSDMCWSTATION-1 R-8170-1A The test sample did not exhibit any malfunction or degradation of performance beyond the tolerances specified by the manufacturer. 75.0 | | | | 75.0 75.0 | | | | 75.0 75.0 | | | | 75.0 75.0 | | | | | 75.0 6.4 8.1 14.4 24.4 38.0 67.9 7.2 10.2 17.6 28.9 51.5 63.2 6.8 8.3 12.7 20.5 36.5 62.9 5.2 7.5 9.7 10.3 16.0 28.4 47.0 70 80 90 100 110 120 70 80 90 100 110 120 70 80 90 100 110 120 70 80 88 90 100 110 120 0.080 | | | | 0.080 0.200 | | | | 0.200 0.500 | | | | 0.500 1.0 | | | | | 1.0 kHzkHzdBsplkHz MAXIMUM DEVIATION LIMITINPUT LEVELAUDIO FREQUENCY Unit locked in transmit mode. 90.211 FCC Part 90 Private Land Mobile Radio Services N. DragottaOctober 23, 1999 MODULATION CHARACTERISTICS (100 Hz TO 15 KHz) R-8170-1ABeyerdynamic MCW 101301511 31 TABULAR DATA SHEET CUSTOMER: MODEL No.: TEST SAMPLE: SERIAL No.: TEST SPECIFICATION: TEST METHOD: OPERATING MODE: TECHNICIAN:DATE: RETLIF TESTING LABORATORIES NOTES: DATA SHEETOF JOB No.: PARAGRAPH: Channel 8; 811.25 MHz MCW Wireless Microphone FCC ID: OSDMCWSTATION-1 R-8170-1A The test sample did not exhibit any malfunction or degradation of performance beyond the tolerances specified by the manufacturer. 75.0 | | | | 75.0 75.0 | | | | | 75.0 75.0 | | | | 75.0 75.0 | | | | 75.0 6.5 6.7 8.7 14.2 23.4 38.8 7.5 8.7 10.4 11.3 18.7 30.3 52.8 6.7 9.2 12.6 20.3 34.8 45.9 8.6 11.4 15.8 26.0 45.0 64.3 70 80 90 100 110 120 70 80 88 90 100 110 120 70 80 90 100 110 120 70 80 90 100 110 120 2.0 | | | | 2.0 2.5 | | | | | 2.5 5.0 | | | | 5.0 10.0 | | | | 10.0 kHzkHzdBsplkHz MAXIMUM DEVIATION LIMITINPUT LEVELAUDIO FREQUENCY Unit locked in transmit mode. 90.211 FCC Part 90 Private Land Mobile Radio Services N. DragottaOctober 23, 1999 MODULATION CHARACTERISTICS (100 Hz TO 15 KHz) R-8170-1ABeyerdynamic MCW 101301511 32 TABULAR DATA SHEET CUSTOMER: MODEL No.: TEST SAMPLE: SERIAL No.: TEST SPECIFICATION: TEST METHOD: OPERATING MODE: TECHNICIAN:DATE: RETLIF TESTING LABORATORIES NOTES: DATA SHEETOF JOB No.: PARAGRAPH: Channel 8; 811.25 MHz MCW Wireless Microphone FCC ID: OSDMCWSTATION-1 R-8170-1A The test sample did not exhibit any malfunction or degradation of performance beyond the tolerances specified by the manufacturer. 75.0 | | | 75.0 6.2 9.5 11.3 12.5 14.0 70 80 88 90 100 15.0 | | | 15.0 kHzkHzdBsplkHz MAXIMUM DEVIATION LIMITINPUT LEVELAUDIO FREQUENCY Unit locked in transmit mode. 90.211 FCC Part 90 Private Land Mobile Radio Services N. DragottaOctober 23, 1999 MODULATION CHARACTERISTICS (100 Hz TO 15 KHz) R-8170-1ABeyerdynamic MCW 101301511 33

Retlif Testing Laboratories R Retlif Job Number R-8170-1A Data Sheet 1 of 1 Test Method: Effective Radiated Power Customer: Beyerdynamic Job No. R-8170-1A Test Sample: MCW Wireless Microphone Model No.: MCW 1013 FCC ID: OSDMCWSTATION-1 Serial No. N/A Operating Mode Continuously transmitting at the frequency specified below FCC Part 90 Private Land Mobile Radio Services Test Specification Distributional Services Paragraph: 90.217 Technician: Robert Ocasio Date October 29,1999 Notes: Test Distance: 3 Meters Temp: 16C Humidity: 44% Detector: Peak Test Freq. Antenna Pol./Height EUT Orientation Meter Reading Substitution Antenna. Reading Antenna correction Corrected Reading Converted Reading Limit MHz (V/H) / Degrees Degrees dBuv dBm (dB) dBm mW mW 806.00 V-1.0 180 68.7 -9.3 4.6 -4.7 .339 120 806.00 H-1.0 068 65.7 -12.7 4.6 -8.1 .155 120 811.25 V-1.0 023 69.1 -8.4 4.7 -3.7 .420 120 811.25 H-1.0 068 68.0 -10.5 4.7 -5.8 .260 120 816.79 V-1.0 090 68.9 -8.4 4.6 -3.8 .410 120 816.79 H-1.0 068 67.4 -10.9 4.6 -6.3 .230 120 The EUT was placed on a tabletop, and the radiated output level was measured. After the level was maximized, the EUT was replaced with another antenna and a signal generator. The level of the generator was raised until it matched the level recorded from the EUT and this was considered to be the output power.

TABULAR DATA SHEET CUSTOMER: MODEL No.: TEST SAMPLE: SERIAL No.: TEST SPECIFICATION: TEST METHOD: OPERATING MODE: TECHNICIAN:DATE: RETLIF TESTING LABORATORIES NOTES: DATA SHEETOF JOB No.: PARAGRAPH: Level adjustment set at maximum. MCW Wireless Microphone FCC ID: OSDMCWSTATION-1 R-8170-1A The test sample did not exhibit any malfunction or degradation of performance beyond the tolerances specified by the manufacturer. 806.0403 | | | | | | | V 806.0403 805.980 805.987 805.989 805.992 805.995 805.996 805.984 805.998 805.999 806.001 805.9597 | | | | | | | V 805.9597 -30 -20 -10 0 10 20 room temp 30 40 50 806.000 | | | | | | | V 806.000 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass 1 | | | | | | | V 1 MHzMHzMHzDEGREES C.MHz UPPER LIMITTEMPERATURELOWER LIMITPass / FailMETER READINGTRANSMIT FREQUENCY CHANNEL Unit locked in transmit mode. 90.213 FCC Part 90 Private Land Mobile Radio Services T. SchneiderOctober 1, 1999 FREQUENCY STABILITY ( -30 DEGREES TO +50 DEGREES ) Para 2.985 R-8170-1ABeyerdynamic MCW 101301511 11

TABULAR DATA SHEET CUSTOMER: MODEL No.: TEST SAMPLE: SERIAL No.: TEST SPECIFICATION: TEST METHOD: OPERATING MODE: TECHNICIAN:DATE: RETLIF TESTING LABORATORIES NOTES: DATA SHEETOF JOB No.: PARAGRAPH: Tolerance: +/- .005% ( +/- .0403 MHz) MCW Wireless Microphone FCC ID: OSDMCWSTATION-1 R-8170-1A The test sample did not exhibit any malfunction or degradation of performance beyond the tolerances specified by the manufacturer. 0 806.0403 806.0403 806.0403 805.9980 805.9925 805.9982 805.9597 805.9597 805.9597 6.1 7.2 8.3 85 100 115 806.000 806.000 806.000 4 1 1 1 VDCMHzMHzMHzMHzVDC%MHz CUTOFF READING UPPER LIMITINPUT VOLTAGELOWER LIMITCUTOFF VOLTAGE METER READINGINPUT VOLTAGETRANSMIT FREQUENCY CHANNEL Unit locked in transmit mode. 90.213 FCC Part 90 Private Land Mobile Radio Services N. DragottaAugust 04, 1999 FREQUENCY STABILITY (INPUT POWER 85% TO 115% ) R-8170-1ABeyerdynamic MCW 101301511 11

Retlif Testing Laboratories R Retlif Job Number R-8170-1A Data Sheet 1 of 3 Test Method: Spurious Emissions, Paragraph 2.993 30 MHz to 9.0 GHz Customer: Beyerdynamic Job No. R-8170-1A Test Sample: MCW wireless microphone Model No.: MCW1013 FCC ID: OSDMCWSTATION-1 Serial No. 01511 Operating Mode: Continuously transmitting at 806.0 MHz (CH.1) Test Specification FCC Part 90 Private Land Mobile Radio Services Distributional Services Paragraph 90.217 Technician: Dennis Cortes Date: August 12, 1999 Notes: Test Distance: 3 Meters Limit= 49.2 x Output Power – (43+10 log Output Power) Detector: Peak D Test Freq. Antenna Pol./Height EUT Orientation Meter Reading Correction Factor Corrected Reading Converted Reading Limit MHz (V/H) / Meters Degrees dBuv dB dBuv/m uv/m uv/m 30.0 16596 | | | | | | | | | | | | | | | | | | | | | | 1612.0 V-1.1 270 61.4 -4.3 57.1 716.1 | | | | | | | | | | | | | | | V V 9000.0 16596 The EUT was scanned from 30 MHz to 9 GHz The emissions observed from the EUT do not exceed the specified limits. All emissions not recorded were more than 20dB below the specified limit. Retlif Testing Laboratories R Retlif Job Number R-8170-1A Data Sheet 2 of 3 Test Method: Spurious Emissions, Paragraph 2.993 30 MHz to 9.0 GHz Customer: Beyerdynamic Job No. R-8170-1A Test Sample: MCW wireless microphone Model No.: MCW1013 FCC ID: OSDMCWSTATION-1 Serial No. 01511 Operating Mode Continuously transmitting at 811.25 MHz (CH.8) Test Specification FCC Part 90 Private Land Mobile Radio Services Distributional Services Paragraph 90.217 Technician: Dennis Cortes Date: August 12, 1999 Notes: Test Distance: 3 Meters Limit= 49.2 x Output Power – (43+10 log Output Power) Detector: Peak D Test Freq. Antenna Pol./Height EUT Orientation Meter Reading Correction Factor Corrected Reading Converted Reading Limit MHz (V/H) / Meters Degrees dBuv dB dBuv/m uv/m uv/m 30.0 16596 | | | | | | | | | | | | | | | | | | | | | | 1622.5 V-1.2 158 58.5 -4.1 54.4 524.8 | | | | | | | | | | | | | | | V V 9000.0 16596 The EUT was scanned from 30 MHz to 9 GHz The emissions observed from the EUT do not exceed the specified limits. All emissions not recorded were more than 20dB below the specified limit. Retlif Testing Laboratories R Retlif Job Number R-8170-1A Data Sheet 3 of 3 Test Method: Spurious Emissions, Paragraph 2.993 30 MHz to 9.0 GHz Customer: Beyerdynamic Job No. R-8170-1A Test Sample: MCW wireless microphone Model No.: MCW1013 FCC ID: OSDMCWSTATION-1 Serial No. 01511 Operating Mode Continuously transmitting at 816.799 MHz (CH.3) Test Specification FCC Part 90 Private Land Mobile Radio Services Distributional Services Paragraph 90.217 Technician: Dennis Cortes Date: August 12, 1999 Notes: Test Distance: 3 Meters Limit= 49.2 x Output Power – (43+10 log Output Power) Detector: Peak D Test Freq. Antenna Pol./Height EUT Orientation Meter Reading Correction Factor Corrected Reading Converted Reading Limit MHz (V/H) / Meters Degrees dBuv dB dBuv/m uv/m uv/m 30.0 16596 | | | | | | | | | | | | | | | | | | | | | | 1633.598 V-1.3 248 56.6 -4.1 52.5 421.7 | | | | | | | | | | | | | | | V V 9000.0 16596 The EUT was scanned from 30 MHz to 9 GHz The emissions observed from the EUT do not exceed the specified limits. All emissions not recorded were more than 20dB below the specified limit.

TABULAR DATA SHEET CUSTOMER: MODEL No.: TEST SAMPLE: SERIAL No.: TEST SPECIFICATION: TEST METHOD: OPERATING MODE: TECHNICIAN:DATE: RETLIF TESTING LABORATORIES NOTES: DATA SHEETOF JOB No.: PARAGRAPH: Channel 8; 811.25 MHz 2M + 2D=+/- 40 kHz= 80 kHz; M=15 kHz, maximum deviation allowed is 25 kHz MCW Wireless Microphone FCC ID: OSDMCWSTATION-1 R-8170-1A 6.7 9.2 12.6 20.3 8.6 11.4 15.8 24.3 6.2 9.5 12.5 14.0 70 80 90 100 70 80 90 100 70 80 90 100 5.0 | | 5.0 10.0 | | 10.0 15.0 | | 15.0 25.0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | V 25.0 6.4 8.1 14.4 24.4 7.2 10.2 17.6 23.9 6.8 8.3 12.7 20.5 5.2 7.5 10.3 16.0 6.5 6.7 8.7 14.2 7.5 8.7 11.3 18.7 70 80 90 100 70 80 90 100 70 80 90 100 70 80 90 100 70 80 90 100 70 80 90 100 25.0 | | | | | | | | | | | | | V 25.0 0.080 | | 0.080 0.200 | | 0.200 0.500 | | 0.500 1.0 | | 1.0 2.0 | | 2.0 2.5 | | 2.5 kHzkHzdBsplkHzkHzkHzdBsplkHz MAXIMUM DEVIATION INPUT LEVELLIMITLIMITAUDIO FREQUENCY MAXIMUM DEVIATION INPUT LEVELAUDIO FREQUENCY Unit locked in transmit mode. 90.211 FCC Part 90 Private Land Mobile Radio Services N. Dragotta/T. SchneiderOctober 23, 1999 MODULATION CHARACTERISTICS (80 Hz TO 15 KHz) R-8170-1ABeyerdynamic MCW 101301511 11