| RF SPECIFICATIONS |
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Nominal RF power:
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30 adjustable from 1W to full power
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RF output impedance:
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50 Ohms unbalanced, VSWR less than 1.5:1
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RF connector:
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N Type Female
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| Frequency range: |
87.5-108 MHz programmable in 10 kHz steps, synthesized, microprocessor controlled. |
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Off lock attenuation:
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> 60 dBc
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Lock-in time:
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< 5 sec. (typ. < 2 sec)
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Type of Modulation:
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F3E / F8E direct FM at carrier frequency
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Frequency deviation:
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+/- 75 KHz = 100%25, +/- 150 kHz capability
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| Reference: |
12.8 MHz VTCXO
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Stability of freq. dev:
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+/- 2,5 %25 x 6 mo.
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Consistency of deviation over range:
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< +/- 2 %25 from 87.5 to 108 MHz
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Frequency drift:
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< / - 2 kHz/year (due to internal TCXO aging). Can be user calibrated
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Short term stability:
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+/- 1 ppm from -5 to +45 C (100 Hz @ 100 MHz)
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RF Harmonics:
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Exceeds EBU/ CCIR/FCC requirements >70 dBc
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RF Spurious:
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Exceeds EBU/ CCIR/FCC requirements, < -90 dBc min @ +/- 1 MHz
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RF Monitor:
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-40 dBc+/-3 dB from 87.5 to 108 Mhz (not suitable for measuring harmonics)
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| AUDIO GENERAL SPECIFICATIONS |
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Preemphasis:
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Flat/50/75 microseconds, microprocessor controlled
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Preemphasis precision:
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better than 0.5 dB
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Stereo System:
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CCIR / FCC "pilot tone system"
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Distortion, THD:
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Less than 0.1%25 (typ. 0.05%25)
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Intermodulation (IMD):
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Less than 0.1%25(typ. 0.05%25)
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Transient IMD:
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< 0.25 %25 (square / sine Wave)
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Wideband Amplitude Response:
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+/- 0.25 dB, 30 Hz to 100 kHz
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Audio Filter Attenuation:
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> 50 dB @ 19 kHz, >30 dB 19 to 50 KHz, >50 dB to 100 kHz (typ.)
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Common mode rejection:
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> 40 dB typ. 30 Hz to 15 kHz (50 dB on request)
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| COMPOSITE SPECIFICATIONS |
| Stereo Separation: |
30-80 Hz > 50 dB, 80 Hz-15 kHz > 60 dB (typ.65) |
| Crosstalk attn. (M / S): |
> 40 dB 40 Hz to 15 kHz (typ. 50 dB / 100 Hz to 8 kHz) |
| 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 degree +/- 2 degrees internally adjustable |
| THD on L & R channels: |
<0.1%25 30 Hz - 15 kHz |
| IMD: |
70 Hz / 6 kHz 4:1 RATIO <0.1%25 |
| Transient IM: |
<0.25%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 +/- 75 kHz: Weighted (CCIR 468/2- Peak CCIR detector) 80 dB / 50 microseconds - 74 dB / flat Weighted (CCIR 468/2 - RMS detector) 83 dB / 50 microseconds - 77 dB / flat Unweighted (RMS detector, 30 Hz-20 kHz) 80 dB / 50 microseconds - 71 dB / flat |
| AM Synchronous: |
(AM = 500 Hz, FM = 500 Hz +/- 75 kHz Ref. = 100 %25 AM, RMS detector, BW 30 Hz-200 kHz) < -55 dB typ. -60dB |
| AM Asynchronous: |
FM = no modulation, Ref. = 100 %25 AM, Unweighted, RMS detector, BW 30 Hz- 200 kHz) < - 55 dB typ. -60 dB |
| Am asynchronous: |
(Fm = no modulation, Ref. = 100 %25 AM, Unweighted, RMS detector, BW 30-200 kHz) < -68 dB, typ. -80 dB |
| AUDIO INPUTS |
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SCA / RDS Input:
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1 BNC connector, unbalanced, Z nominal~3 kOhm (2.8<Z<3) Lev: -3 + 6 dBm @ 7.5 kHz, Dev. adj. on rear panel
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| AUX Input: |
1 BNC conn, nbal., Z nominal ~ 3 kOhm (2.8<Z<3) Lev: -3 + 6 dBm @ 7.5 kHz Deviation adj on rear panel
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| MPX Input: |
1 BNC conn., unbalanced, Z nominal ~ 1 k2 (1 k2 +/- 10 %25), Lev: -3 + 6 dBm @ 75 kHz Deviation, adj. on rear panel
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| L & R + Mono Input: |
2 XLR connectors, balanced or unbalanced; Z nominal 10 kOhm +/- 1 %25 or 600 Ohm +/- 1 %25; uP selectable by menu; uP selectable Lev: -3 + 6 dBm @ 75 kHz Deviation. Coarse steps 3 dB (uP) Fine adj. 3.5 dB (+/- 1.75), adj. on rear panel
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| OTHER CONNECTORS |
| 19 kHz Output: |
1 BNC connector, unbalanced Z nominal: > 5k Pilot = 1 Vpp 19 kHz Squarewave |
| Telereadings / telecontrol : |
DB 25 on back panel |
| Interlock: |
Normally open or normally closed (software selectable), contact on telemetry connector. |
| USB: |
USB B on front panel for telecontrol (under development) |
| 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%25 (non condensing) |
| Max operating altitude: |
2000 m. |
| Cooling: |
Forced air (internal low noise blower) |
| PHYSICAL & ELECTRICAL |
| Front Panel: |
483 mm (19") Wx 44mm (1 3/4") H (One standard rack space high) |
| Overall Depth: |
365 mm (14") |
| Weight: |
Approx. 4 kg (8.8lbs) |
| Cabinet: |
Stainless steel |
| AC Power: |
Full voltage range power supply (95 to 260 volts single phase) Approx. power consumption @ full power: LEX30 = 75VA.
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| LCD Display Readings: |
Programmed Output Power; Forward Power; Refl. Power; Unclipped Deviation (simulated Led Bar); Clipped Deviation (simulation 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 (3 dB step); RDS, SCA, AUX, MPX Ext Modulation; Programmed Audio Parameters; Preemphasis (Flat, 50, or 75 microseconds); Limiter On / Off; Input Impedance; Z = 10 kOhm / 600 Ohm; Preset Thresholds (min. RF power, mute time) |
