 TKR-740/840
VHF/UHF FM Repeater-Base Units
| High-performance features, repeater mode, 32 channel simplex/full-duplex base mode, flash memory, DSP-based tone decoding, PC Programmability, PC tuning, interface ports, test ports and programmable auxiliary ports make Kenwood's Systems utilizing the embedded TKR-740/840 receiver-exciter units the first choice for demanding industrial and public service applications. | |
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| • | 32 Channel Simplex / Full-Duplex base mode | | • | Priority Scan | | • | Front Panel PF Keys with status LED | | • | Repeat Mode & Internal Controller | | • | Multi-Tone / Code Tables & DSP Processing | | • | Low Profile design and Die-Cast Chassis | | • | Auxillary Macro Ports | | • | Continuous Duty / High Stability RF Power Output | | • | Flash Memory Advantage | | • | LED Indicators | | • | Wide / Narrow Channel Spacing | | • | PC Programming and Tuning | | • | External Reference Input | | • | Local Speaker & Microphone / Test Switch | | • | Companded Audio | | • | Eight CW Message Memories | | • | Voter Tone Generation | | • | Digital Paging Encoder Input | | • | Voice Scrambler Port / Control |
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| Base Station/Repeater | Base/Repeater | | Channel Bandwidth | No | | Channel spacing | TKR-740: 30,25,25kHz(W):15,12.5,12.5kHz(N) | TKR-840: 30,25,25kHz(W):15,12.5,12.5kHz(N) | | Channel Speed | TKR-740: RX:3MHz TX: 38MHz | TKR-840: RX:5MHz TX: 30MHz 32MHz | | Channels | 32 | | Conventional/Trunked | Conentional/Trunking | | Desk/Rack/Cabinet | Desktop(option)/Rack | | Duty cycle | 100% | | Frequency Range | TKR-740:
Type 1:146-162MHz
Type 2:158-174MHz
Type 3:136-150MHz
TKR-840:
Type 1:450-480MHz
Type 2:480-512MHz
Type 3:400-430MHz | | Scan | Dual Priority | | Simplex/Duplex | Simplex/Full-Duplex | | Size | 44x483x265 | | Spec(RX) Adj ch | TKR-740:dB (Wide) dB (Narrow)
TKR-840:dB (Wide dB (Narrow) | | Spec(RX) Audio Power | 4W at SP teminal(5%) | | Spec(RX) Blocking | False | | Spec(RX) current drain | Less than 1.5A | | Spec(RX) distortion | Less than 2% | | Spec(RX) Hum&Noise | 60db(Wide) | | Spec(RX) IM | TKR-740: 90dB(W) 85dB(N) | TKR-840: 85dB(W) 80dB(N) | | Spec(Rx) Mod. Ac.BW | False | | Spec(RX) Sensitivity (12dB SINAD) | 0.3uV | | Spec(RX) Sensitivity (20dB NQ) | 0.4uV | | Spec(RX) Spurious rejection | 100dB | | Spec(RX) SQ Sens. | False | | Spec(TX) Attack Time | No | | Spec(TX) current drain | Less than 3.5A | | Spec(TX) Freq Err | ±0.00015% | | Spec(TX) Hum&Noise | 55db(Wide) | | Spec(TX) Mic sens. | No | | Spec(TX) Output Power | 0.1,5W - 0.1,5W | | Spec(TX) Spurious | 70dB | | Spec(TX) TX distortion | Less than0.5% | | Temperature Range | -30°C to 60°C | | Weight | lbs (4 g) |
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