Bext LEX 100 100 watt Broadcast FM Exciter Transmitter!
Built-in Stereo Generator and Limiter-Clipper NEW!
| Start Price |
USD 2,600.00 |
| Current Price |
USD 2,600.00 |
| Time Left |
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| Buy It Now Price |
USD 2,600.00 |
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| Start Time |
Sunday, July 20, 2008 |
| End Time |
Sunday, July 27, 2008 |
| Location |
Augusta, ME |
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See more about 'Bext LEX 100 100 watt Broadcast FM Exciter Transmitter!'
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Description
For your consideration, please, this BEXT LEX 100, 100 watt FM broadcast stereo exciter/stand alone transmitter. This stereo FM exciter/transmitter is in mint, like/as brand new condition. It has only been tested and factory proofed tested and checks out all A-OK! (It comes with full documentation.) The unit has not been mounted nor used in any way. It’s only been stored in a temperature controlled environment. It sounds fantastic. It is frequency agile, clean and clear, with superb, very high stereo separation and excellent frequency response. The LEX 100 also comes with a built-in audio limiter-clipper. It is quite efficient not only in performance, but also in space management as it only takes up one rack space. It’s really ultra-slim, sleek and innovative. It is high quality “broadcast material” as it comes from BEXT, a name well known in genuine, professional broadcast circles. You will not be disappointed with this piece. This exciter/transmitter meets or exceeds all FCC and CCIR requirements. I am providing specs and capabilities for this piece of gear. If you have any questions at all, please ask early, and I’ll be more than happy to answer your questions. This piece of equipment is ideal for LPFM of course, as a replacement or spare exciter/backup transmitter or for use in “leaky cable” FM applications. Again, please ask any questions that you may have, early on, before auction’s end. Acceptable methods of payment are known money orders or Paypal. Payment is due within four days, and communications between us is due within forty-eight hours. Shipping is $30.00 via FedEx ground, and the exciter/transmitter is shipped immediately upon receipt of payment. Serious bidders only, please. In the meantime, please, meander the specs and pixs. Thank you for looking, and good luck! Ultra slim, Freqency Agile, 30, 50 and 100 W FM Exciter / Transmitter • 30, 50 or 100 Watts & Excellent Audio Specs in ultra slim size, one rack space stainless enclosure • Built-in, selectable Very High Separation internal Stereo Generator and Fast Audio Clipper, standard • USB port (front) for PC connection and two independent RS 485 ports (rear), standard • Up to seven presets (freq, pwr & program setup) allowing for ideal back up to multiple stations, standard • Built-in, front panel programmable FSK ID Keyer by software for auto-ID of Translators, standard • Full Telemetry & Remote Control interface built-in, standard • Fast access to programmability, functions & all readings from front panel via user-friendly menu display • Proportional Auto-Foldback of output power in the event of excessive VSWR • Adjustable power output from 0 to full power with soft-start control • Automatic power control maintaining the output at any pre-set level • Voltage selector for 120 or 230 V AC operation • Optional DC voltage input • Optional AES-EBU Digital Audio input (XLR type and Optical type) • Optional Sync Port to lock frequency onto 1, 2, 2.5, 5 or 10 MHz External Reference • Optional Built-in RDS Encoder • Modular layout with plug-in, easily replaceable circuits and parts • Meets or exceeds all FCC and CCIR requirements • Includes low pass/harmonic filter and can be used as a stand-alone transmitter • RF SPECIFICATIONS Nominal RF power: 30, 50 or 100 W adjustable from 0 to Full Power RF output impedance: 50Ω unbalanced, VSWR less than 1.5:1 RF connector: N Type Female Frequency range: 87.5 - 108 MHz programmable in 10 kHz steps, synthesized, microprocessor controlled Off lock attenuation:> 60 dBc Lock-in time: < 20 sec. (typ. < 7 sec) Type of modulation: F3E / F8E direct FM at carrier frequency Frequency deviation: ±75 kHz =100 %, ±150 kHz capability Reference: 12.8 MHz VTCXO Stability of freq. dev: ±2,5 % x 6 mo. Consistency of deviation over range: < ± 2% from 87.5 to 108 MHz Frequency drift: ≤ 2 kHz/year (due to internal TCXO aging). Can be user calibrated Short term stability: ± 1 ppm from -5 to +45 °C (100 Hz @ 100MHz) RF Harmonics: Exceeds EBU/ CCIR/FCC requirements >70dBc RF Spurious: ExceedsEBU/ CCIR/FCC requirements, < -90dBc min @ ±1 MHz RF Monitor: -40dBc±3dB from 87.5 to 108 MHz (not suitable for measuring harmonics) • AUDIO GENERAL SPECIFICATIONS Preemphasis: Flat/50/75 μs, μprocessor controlled Preemphasis precision: better than 0.5 dB Stereo System: CCIR / FCC ‘pilot tone system’ Distortion, THD: Less than 0.1% (typ. 0.05%) Intermodulation (IMD): Less than 0.1% (typ. 0.05%) Transient IMD:< 0.25% (square / sine Wave) Wideband Amplitude Response: ± 0.25 dB, 30 Hz to 100 kHz Audio Filter Attenuation: > 50 dB @ 19 kHz, >30dB 19 to 50 kHz, >50dB to 100kHz (typ.) Common mode rejection: > 40 dB typ. 30 Hz to15kHz (50dB on request) • COMPOSITE SPECIFICATIONS Stereo Separation: 30-80Hz >50dB, 80Hz-15kHz >60 dB (typ.65) Crosstalk attn. (M / S):> 40 dB 40 Hz to 15 kHz (typ. 50dB / 100Hz to 8kHz) Audio Spurious Products: > 53 kHz < 50 dB 38 kHz Suppression: > 50 dB 38 kHz Tone Generation: Internal Crystal 38 kHz Tone Precision: 38 kHz ± 2 Hz Pilot Tone frequency: 19 kHz ± 1 Hz Phase response: 19/38 kHz 0°± 2° internally adjustable THD on L & R channels: < 0.1% 30Hz - 15 kHz IMD: 70 Hz / 6 kHz 4 :1 RATIO < 0.1 % Transient IM: < 0.25 % (square/sinus) Audio response: ± 0.25 dB 20 Hz to 15 kHz Pilot Tone Deviation: ± 7 kHz nominal S/N: Typical Values referred to ± 75kHz: Weighted (CCIR 468/2 - Peak CCIR detector) 80 dB / 50μs -74dB / flat Weighted (CCIR 468/2 - RMS detector) 83 dB / 50μs -77dB / flat Unweighted (RMS detector, 30Hz-20kHz) 80dB / 50μs - 79 dB / flat Unweighted (RMS detector, 10Hz-200kHz) 80dB / 50μs - 71 dB / flat AM Synchronous: (AM=500 Hz, FM = 500 Hz ± 75 kHz Ref. = 100 % AM , RMS detector, BW 30Hz-200kHz ) < -55dB typ. -60dB AM Asynchronous: FM = no modulation, Ref. = 100 % AM, Unweighted, RMS detector, BW 30Hz-200kHz ) < -55dB typ. -60dB Am asynchronous: (Fm = no modulation, Ref. = 100 % AM, Unweighted, RMS detector,BW 30-200 kHz) < -68dB, typ. -80dB • AUDIO INPUTS SCA / RDS Input: 1 BNC connector, unbalanced, Z nominal~3 kOhm (2.8<Z<3) Lev: -3 +6 dBm @ 7.5 kHz, Dev. adj. on rear panel AUX Input: 1 BNC conn, unbal., Z nominal ~3 kohm (2.8<Z<3), Lev: -3 +6 dBm @ 7.5 kHz Deviation adj on rear panel MPX Input: 1 BNC conn., unbalanced, Z nominal~1k2 ( 1k2 ± 10 %), Lev: -3 + 6 dBm @ 75 kHz Deviation, adj. on rear panel L&R +Mono Input: 2 XLR connectors, balanced or unbalanced; Z nominal 10 kOhm ± 1% or 600 Ohm ± 1%; μP selectable by menu; μP selectable Lev: -3 +6 dBm @ 75 kHz Deviation. Coarse steps 3 dB (μP) Fine adj 3.5dB (± 1.75), adjustable on rear panel • OTHER CONNECTORS 19 kHz Output: 1 BNC connector, unbalanced Z nominal: >5k Pilot = 1 Vpp19 kHz Squarewave Status of correct output: 1 BNC connector, unbalanced, 15Vmax, 100mA (open drain) Interlock: 1 BNC connector, unbalanced, Normally open or normally closed, selectable by internal jumper USB: USB port on front panel RS 485: RJ45 custom pin-out connector • ENVIRONMENTAL Storage temperature: -20°C to + 60 °C Operating temperature: 5 °C to + 45 °C Guaranteed performance temp: 0°C to +40°C Relative humidity: 90 %(non condensing) Max operating altitude: 2000 m. Max ambient field strength: ≤10 V/m; ≤ 4 A/m Cooling: Forced air (internal low noise blower) • PHYSICAL & ELECTRICAL Front panel: 483 mm (19") W x 44 mm (1¾”) H (One standard rack space high) Cabinet Depth: 40 mm (15¾”) Weight: Approx. 5 kg (11 lbs) Cabinet: Stainless steel AC Power: 120 / 220V AC single phase (±15%), 50-60Hz; Internal voltage selector LCD Display Readings: Programmed Output Power; Forward Power; Refl. Power; Unclipped Deviation (simulated Led Bar); Clipped Deviation (simulated Led Bar); Clipper activity (clipped / unclipped differential); L Audio True Peak Level (simulated Led Bar); R Audio True Peak Level (simulated Led Bar); Frequency (6 digits); Sensitivity (3dB step); RDS, SCA, AUX, MPX Ext Modulation; Programmed Audio Parameters; Preemphasis (Flat, 50, or 75μS); Limiter On/Off; Input Impedance; Z=10kOhm / 600 Ohm; Preset Thresholds (min. RF power, mute time) BEXT Inc 1045 Tenth Avenue San Diego CA 92101 USA • Tel 619 2398462 Fax 619 2398474 • www.bext.com • e-mail: bext@bext.com
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