DB STL Link Analog FM
DB STL Link Analog FM
Features
Synthesized agility: from 210-970 MHz (3B, / 4B, / GHz models) Excellent stereo separation: A built-in group delay and amplitude precorrector Suitable for digital audio: The subsonic over-modulation and the low frequency Low THD distortion: the THD value with stereo or mono demodulated Low noise: the excellent signal to noise ratio either in mono or in stereo High sensitivity: using ultra low noise receiving input amplifiers |
MAIN CHARACTERISTICS:
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Synthesized agility: from 210-970 MHz (3B, / 4B, / GHz models) and 1,35-2,5 GHz (2G models), the transmission and reception of frequencies can be easily set from the front panel LCD display.
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Excellent stereo separation: A built-in group delay and amplitude precorrector guarantees a very low phase distortion and a great stereo separation in the whole 15kHz audio band.
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Suitable for digital audio: The subsonic over-modulation and the low frequency phase distortion are controlled by a feedback circuit in order to exalt the audio quality of the latest digital studio equipment.
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Low THD distortion: the THD value with stereo or mono demodulated signals is negligible.
HIGHLIGHTS:
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Low noise: the excellent signal to noise ratio either in mono or in stereo allows the use of this STLs in multi hops networks without decreasing the audio quality.
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High sensitivity: using ultra low noise receiving input amplifiers, selective filters and with a powerful demodulation circuit the obtained receivers sensitivity is very high, so allowing longer link distances with reduced antenna investment also in highly noisy RF environments.
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Great RF immunity: allows to operate in most hostile RF environments.
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High adjacent channel rejection, obtained thanks to the excellent mechanical shielding and the precision of RF channel filtering.
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High frequency stability with the internal temperature compensated crystal reference.
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Full metering: complete diagnostic and measurement front panel displays are available. Full remote control is available as WEB server and/or SNMP as option.
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Meets or exceeds all FCC and CCIR requirements.
| TECHNICAL SPECIFICATIONS | |
|---|---|
| Frequency Range | |
| KE/1B, KV/1B | 48-80 MHz |
| KE/FM, KV/FM | 80-108 MHz |
| KE/3B, KV/3B | 160-300 MHz |
| KE/4B, KV/4B | 300-512 MHz |
| KE/5B, KV/5B | 512-830 MHz |
| KE/G, KV/G | 830-1020 MHz |
| KE/2G, KV/2G | 1.1-2.7 GHz |
| Composite Frequency response | ± 0.1 dB typ. from 16 Hz to 53 kHz, 0.5 dB up to 100 kHz |
| Mono Frequency response | ±0.5 dB from 20 Hz to 15 kHz |
| Stereo separation | ≥ 58 dB (from 15 Hz to 15 kHz) |
| Stereo cross talk | ≥ 55 dB |
| Signal to Noise Ratio (mono) (-50 dBm received) | ≥ 72 dB with 75 kHz dev. deemphasized |
| Signal to Noise Ratio (stereo) (-50 dBm received) | ≥ 68 dB with 75 kHz dev. deemphasized |
| THD (stereo) | < 0.1 % |
| THD (mono) | < 0.1 % |
| IMD (two tone ΔF= 1 kHz) | D2 ≤ 0.09%, D3 ≤ 0.06% (from 15 Hz to 15 kHz) |
| TRANSMITTERS SPECIFICATIONS | |
|---|---|
| Power outputs (continuously adjustable from 0 to nominal power) | |
| KE/1B | 15 W |
| KE/FM | 30W |
| KE/3B | 15 W |
| KE/4B | 15 W |
| KE/5B | 15 W |
| KE/G | 8 W (25 W on request) |
| KE/2G | 2 W |
| KE5/2G | 5 W (10 W, 25 W on request) |
| Input connectors | XLR, 600 Ω for mono or stereo (Left&Right) BNC, 10kΩ for MPX |
| Output connector | N female, 50 Ω |
| Modulation | FM |
| Pre-emphasis | 0 / 50 / 75 µs |
| Spurious and harmonic | below FCC and CCIR requirements |
| Syncronous AM S/N Ratio | ≤ -60 dBc with dev. ±75 kHz |
| Asyncronous AM S/N Ratio | ≤ -70 dBc respect to 100% AM mod. |
| Capability | 1 mono/stereo program, up to 3 SCA (optional) |
| Metering | output level, peak modulation, diagnostic functions |
| Frequency setting | Internal dip-switches |
| Dimensions | depth 483 mm (19") x 2 U (standard rack unit) |
