[ No single offers please - l can only give small discounts for mulitple purchases. UPDATE: I have more Sennheiser Evolution Wireless (EW) compatible equipment in my inventory, e.g. SK bodypack transmitters, EK bodypack receivers, microphones, CL 100 XLR to mini jack cables, CA 2 mounts, T Bar extensions, etc. I usually answer eMails within a few hours. ]


Sennheiser EK100 G4 Bodypack Diversity Receiver
- Frequency Range: GB 606-648 MHz
Manufacturer Part No. 577339
~ with a belt clip for attachment
~ part of the Evolution Wireless EW100 G4 System
~ with moderate wear to the body, from being taken in and out of a fitted case during past use

Bundled with a Sennheiser (Neutrik) CL-100 3.5mm Locking Male Mini Jack to 3-Pin Male XLR Cable (circa 60cm long)

Serial number: 5161008363

This unit can use cheap standard 2x 1.5V AA batteries (most common choice, BATTERIES ONLY INCLUDED FOR DOMESTIC POSTAGE), or 1x Sennheiser BA 2015 Rechargeable Accupack (NOT INCLUDED) - or it can even be operated via a DC adapter (NOT INCLUDED).

Built like a tank with German engineering, the casing is part metal and made to last.

This unit has been wiped down externally and also has a clean battery compartment inside.



DETAILS:

Based on source: https://www.sennheiser.com/en-gb/catalog/products/wireless-systems/ek-100-g4/ek-100-g4-gb-507646

For documentary, Mobile Journalism and audio for video applications, this powerful camera receiver is easily mounted on any kind of camera. It is compact and rugged, with a lightweight aluminium housing. 

It uses adaptive diversity technology and is to be deployed with a companion transmitter as part of a wireless RF monitoring system.

The receiver operates within the bandwidth of 606-648 MHz (giving the maximal switching bandwidth of 42 MHz) though there is some overlap with each bandwidths either side of this one. There are 1,680 transmission frequencies, tunable in 25 kHz steps. The receiver features 20 fixed frequency banks with up to 12 compatible frequency presets and 1 user bank with up to 12 user programmable frequencies.

The receiver is menu-driven with a backlit LC display showing the current frequency, frequency bank and channel number, metering of RF level, metering of AF level, lock status, muting function or line output level, pilot tone evaluation, and battery status.

An auto-lock feature is provided to prevent settings from being accidentally altered.

The receiver parameters are programmable in the receiver menu.


Salient Features:

~ Range: up to 100 metres / 330 feet
~ Connection: Wireless
~ Frequency range: 606 - 648 MHz
~ Up to 42 MHz bandwidth with 1680 selectable frequencies, fully tunable in a stable UHF range
~ Up to 8 hours of operation time
~ Excellent sound and construction quality
~ Easy to use and fast setup time
~ Powerful and reliable wireless transmission


TECHNICAL SPECIFICATIONS
RF (Wireless) Characteristics:

Modulation: Wideband FM
Frequency Range: 606 - 648 MHz
Switching Bandwidth: up to 42 MHz
Nominal/Peak Deviation: ±24 kHz/±48 kHz
Receiver Principle: Adaptive Diversity
Adjacent Channel Rejection: ≥ 65 dB (typical)
Intermodulation Attenuation: ≥ 65 dB (typical)
Blocking: ≥ 70 dB
Selectable Squelch Threshold: Low (5 dBμV), Middle (15 dBμV) & High (25 dBμV)
Pilot Tone: Defeatable (i.e. can be switched off) pilot tone squelch
RF Sensitivity: < 1.6 μV (typical) for 52 dBA eff S/N with HDX engaged at peak deviation


AF (Audio) Characteristics:

Compander: Sennheiser HDX
Signal-to-Noise Ratio at 1 mV & Peak Deviation: ≥ 110 dBA
Total Harmonic Distortion (THD): ≤ 0.9 %
AF Output Voltage (at Peak Deviation, 1 kHz AF): +12 dBu at 3.5 mm audio jack socket (mono, unbalanced)
Adjustment Range of Audio Output Level: 42 dB, adjustable in steps of 6 dB


Overall Device:

Power: 2x 1.5V AA size batteries or 1x Sennheiser BA 2015 Rechargeable Accupack
Nominal Voltage: 3 V battery / 2.4 V rechargeable battery (Accupack)
Current Consumption: Typical 180 mA (nominal voltage) or ≤ 25 μA (with transmitter switched off)
Operating Time: Typical 8 hours
Transmitter Dimensions: circa 82 x 64 x 24 mm (3.23" x 2.52" x 0.94")
Weight inc. Batteries: circa 160 g (0.35 lbs) but also add weight of any belt clip etc. 
Operating Temperature: −10 °C to +55 °C (+14 °F to +131 °F)