$246.95
Plantronics SHS1890-25 Push-to-Talk Amplifier
Product ID 14928
Description
Plantronics SHS1890 PTT with carbon type microphone amplifier, PJ-7 connector, and selectable switch operation (momentary or locking modes). Compatible with H-Series headsets.
Receiver - Plantronics SHS1890 allows the use of a wide variety of receiver styles. In addition to the characteristics listed in the table on the reverse side, each receiver has the following features:
Acoustic limiter - Solid-state limiting device across the receiver transducer
Frequency range - 300 to 3300 Hz
Distortion - <5%
Receiver Characteristics of Tops Used with SHS 1890 Push-to-Talk Amplifier
| Plantronics Top | StarSet III H31CD | StarSet III H31/H31N | TriStar H81/H81N | Supra IV Monaural H51/H51N | Supra IV Binaural H61/H61N | Encore Monaural H91/H91N | Encore Binaural H101/H101N |
| 1kHz Sensitivity (dBPa/V, ±4 dB) | 20.5 | 19.5 | 22.0 | 30.0 | 24.5 |
Wide band: 26.0 Narrow band: 37.0 |
Wide band: 19.5 Narrow band: 31.5 |
| Receiver Impedance (ohms, at 1 kHz) | 600 ± 150 | 480 ± 50 | 450 ± 112.5 | 192.5 ± 57.5 | 385 ± 115 |
Wide band: 205 ± 30.8 Narrow band: 250 |
Wide band: 395 ± 59.3 Narrow band: 440 |
| Source Drive Impedance (ohms) | 600 | 10 | 10 | 10 | 10 | 10 | 10 |
| Measuring Device | Bruel & Kjaer 4157 Ear Simulator | Bruel & Kjaer 4157 Ear Simulator | Bruel & Kjaer 4157 Ear Simulator | Bruel & Kjaer 4153 Artificial Ear | Bruel & Kjaer 4153 Artificial Ear | Bruel & Kjaer 4157 Ear Simulator | Bruel & Kjaer 4157 Ear Simulator |
Note 1: A proprietary Plantronics adapter is used with the specified Bruel & Kjaer measuring device
Product Options/Accessories
| Model | SHS1890-25 |
| Manufacturer | Plantronics |
| Part Number | SHS1890-25 |
| Cord Length | 10 foot |
| Frequency | 300 to 3300 Hz |
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