Exciters - PLL

  

ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ

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: 50 OM 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 (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, Êprocessor 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 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

. AUDIO INPUTS

SCA / RDS Input: 1 BNC connector, unbalanced, Z nominal~3 kOhm (2.8-3 +6 dBm @ 7.5 kHz, Dev. adj. on rear panel

AUX Input: 1 BNC conn, unbal., Z nominal ~3 kohm (2.8MPX 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%; selectable by menu; selectable Lev: -3 +6 dBm @ 75 kHz Deviation. Coarse steps 3 dB Fine adj 3.5dB 1.75, adjustable on rear panel

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)

ΠΛΗΡΟΦΟΡΙΕΣ: Scott

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ΠΛΗΡΟΦΟΡΙΕΣ: C&A

 

e-mail: radioactive1076@gmail.com