camera wireless transmitter, audio transmitter, weatherproof
MSRP:$2,266.66
General Description
The new EK 3241 has a switching bandwidth of 36 MHz and frequencies that can be tuned in steps of 5 kHz, making the true-diversity receiver the perfect partner for Sennheiser’s current transmitter models SKM 5200 and SK 5212.
Frequency-agile products are in greater demand than ever as frequency resources become increasingly scarce. We have therefore developed a new tuner module for this true-diversity camera receiver and given the lightweight EK 3241 (200 g) the capacity for reliable, flexible RF wireless transmission: 32 custom frequencies have already been programmed within the switching bandwidth of 36 MHz; in addition, the user is free to program and store another 20 frequencies in steps of 5 kHz into the user bank.
The receiver can be easily and intuitively operated with a completely new user interface, which is similar to that of the SK 5212 bodypack transmitter. For a high operational reliability the EK 3241 displays the battery status of the transmitter in detail. The receiver is extremely reliable; its full-metal case is weatherproof and robust.
Features
- True-diversity receiver in a very compact all-metal housing
- 36 MHz switching bandwidth
- Frequencies tunable in steps of 5 kHz
- New menu for user-friendly operation
- Special protection against the ingress of moisture
- Power supply via camcorder or GA 3041-B battery adapter
- High operational reliability due to true diversity reception
- Detailed indication of the transmitter’s battery status
- Command function can be activated in service
- Operating time of 9 to 18 hrs (BA 50 / B 250)
Delivery Includes
- EK 3241
- 2 antennas
- User manual
CONSUMER ALERT
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone website at
www.fcc.gov/cgb/wirelessmicrophones.
camera wireless transmitter, audio transmitter, weatherproof
MSRP:$2,266.66
Technical Data
| Compander |
Sennheiser HiDyn plus™ |
| RF frequency range (USA) |
470 - 608, 614-698, 944-952 MHz |
| RF frequency range (outside USA) |
450 - 960 MHz |
| Impedance |
2 sockets/50 Ω |
| Intermodulation attenuation |
≥ 70 dB |
| Modulation |
Wideband-FM |
| Nominal deviation |
± 40 kHz / ± 56 kHz |
| Number of channels |
Tuneable in steps of 5 kHz |
| Sensitivity as per 121 TR 9-5 |
Typ. 10 μV for 90 dBAeff S/N |
| Signal-to-noise-ratio |
≥ 100 dB(A) |
| Squelch |
0 until 100 μV, adjustable in steps of 5 dB |
| Switching bandwidth |
36 MHz |
| Total harmonic distortion (THD) |
≤ 1 %, typ. 0.8 % per system |
camera wireless transmitter, audio transmitter, weatherproof
MSRP:$2,266.66
Recommended Accessories
| Part/Accessory |
Article No. |
| Whip antenna |
512521 |
Whip antenna for BNC connector for EK3241
|
camera wireless transmitter, audio transmitter, weatherproof
MSRP:$2,266.66
Variants
| EK 3241-A 450/626 |
|
Model #500971 |
MSRP: $2,266.66 |
| Miniature true diversity ENG receiver for use with QP3041 Quadpack or compatible Sony, Ikegami, Panasonic and Philips 'slot-in' style cameras, camera slot-in use requires mounting adapter (see below), 450/626 MHz* |
| EK 3241-B 590/834 |
|
Model #500972 |
MSRP: $2,266.66 |
| Miniature true diversity ENG receiver for use with QP3041 Quadpack or compatible Sony, Ikegami, Panasonic and Philips 'slot-in' style cameras, camera slot-in use requires mounting adapter (see below), 590/834 MHz* |
MSRP:$2,266.66
Glossary
| Compander |
| Also known as noise reduction system. A system which improves the signal-to-noise ratio by compressing the dynamics on the transmitter side using a compressor, and subsequently restores the normal dynamics on the receiver side using an expander. |
| Impedance |
| Impedance expresses the AC resistance of a microphone or a set of headphones. It is dependent on frequency and is given at 1 kHz as the so-called nominal impedance. Impedance is measured in ohms. In recent years, an industrial standard has developed, setting the impedance of headphones at 50 or 600 ohms. Sennheiser headphones are manufactured according to this standard, thus practically ruling out connection problems. With microphones, the input impedance of the following microphone amplifier should have at least three times the value of the nominal impedance, in order to prevent it from unnecessarily attenuating the microphone signal. |
| Intermodulation attenuation |
| In RF transmission, the different carrier frequencies produce not only hamonics (integral multiples) but also a large number of (odd number) sums and differences of integral multiples of the input frequency components. These limit the number of usable frequencies within a certain band. The intermodulation spacing gives the level difference between the carrier frequency and these unwanted frequencies. |
| Modulation |
| The process in which one wave is varied by some parameter of another wave, for example, an RF carrier frequency that is modulated by an audio signal. Types of modulation include amplitude modulation, frequency modulation, pulse code modulation and pulse width modulation. |
| Nominal deviation |
| Also known as reference deviation. The nominal deviation has been fixed at 40kHz to be able to give comparable technical data. |
| Number of channels |
| Frequencies which are available to transmit a signal. |
| Sensitivity as per 121 TR 9-5 |
| Sensitivity as specified in the regulations issued by the Luftfahrtbundesamt (German aviation authorities). |
| Squelch |
| Adjustable value for muting a receiver if the RF power received falls below a certain threshold value.
|
| Switching bandwidth |
| The frequency band in which frequencies can be switched directly. |
| Total harmonic distortion (THD) |
| Total harmonic distortion is a measure of non-linear harmonic distortion and is given in %. Non-linear harmonic distortions are signals which were not present in the original before the signal was converted by the headphones. These unwanted signals are caused by the diaphragm, whose movements do not precisely move in time with the electric signals that cause it to move. Unfortunately, this is a feature of all electroacoustic transducers. Although it cannot be completely eliminated, suitable steps can be taken to minimise it. However, the user is not interested in why this distortion takes place but in how great the level of distortion must be for it to become perceptible. According to the findings of several research projects, a total harmonic distortion of 1% in the frequency range of 100 to 2000 Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies at 10%. |
