Sennheiser EK 3253, Datasheet

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Technical Data
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Specifi cations EK 3253
Frequency ranges 518 – 554, 626 – 662, 740 – 776, 786 – 822, 830 – 866 MHz
Receiving frequencies 16 factory-preset channels, 16 freely selectable channels
(tunable in steps of 5 kHz)
Switching bandwidth 36 MHz
Modulation FM stereo working on the pilot tone principle
Nominal/peak deviation ± 24 kHz/± 48 kHz
Noise reduction system Sennheiser HDX
AF frequency response 40 – 15,000 Hz
Signal-to-noise ratio > 90 dB(A)
rms
(refers to overall link with SR 3254)
Sensitivity (HDX, peak deviation) typ. 1,5 µV at 52 dBA
rms
S/N
Squelch 4 steps: 0 – 25 dBµV
THD (at 1 kHz and nominal deviation)
ⱕ
0,9 %
Headphone output 3.5 mm jack socket
AF output power (peak deviation, 1 kHz AF) PHONES 2 x 100 mW at 32
⍀
Power supply 2 AA size batteries, 1.5 V
Operating time
with batteries 6 – 10 h (depending on volume)
with BA 2015 accupack 6 – 10 h (depending on volume)
Dimensions (mm) 82 x 64 x 24
Weight (incl. batteries) approx. 200 g
Type approval IC 2099A-SREK3K
ETSI EN 300454-1/-2
Recommended Accessories
Description Product Cat. No.
Stereo transmitter SR 3254 500659
Twin stereo transmitter SR 3256 500507
Earphones IE4 500432
Accupack BA 2015 009950
Charger for BA 2015 accupack L 2015 009928
Ear sleeves, large, 10 pieces 512814
Ear sleeves, medium, 10 pieces 512815
Ear sleeves, small, 10 pieces 512816
Variants
EK 3253 A Cat. No. 500522
Frequency range 518 – 554 MHz
EK 3253 B Cat. No. 500523
Frequency range 626 – 662 MHz
EK 3253 C Cat. No. 500524
Frequency range 740 – 776 MHz
EK 3253 D Cat. No. 500525
Frequency range 786 – 822 MHz
EK 3253 E Cat. No. 500 526
Frequency range 830 – 866 MHz