2061 HF Phone Patch
Designed for full-duplex, half-duplex, or simplex operation
The Barrett 2061 HF phone patch provides an interface between an HF network and the International telephone network, allowing HF stations to be connected to telephone subscribers and vice versa.
The Barrett 2061 uses a unique adaptive hybrid to convert the four-wire audio from the transceiver to two-wire audio for the phone line. An adaptable hybrid, implemented with digital signal processing (DSP), provides continually recalculated isolation between the off air HF signal and the telephone user, producing a reliable VOX signal (Voice Operated Xmit (transmit)) to key the transmitter when the telephone subscriber’s voice is present. DSP based automatic adaptive hybrid that balances the telephone line continually with no adjustments, eliminating oscillation in full duplex circuits, false VOX tripping and time consuming setup.
Features
Adaptive hybrid
An adaptable hybrid, implemented with digital signal processing (DSP), provides continually recalculated isolation between the off air HF signal and the telephone user, producing a reliable VOX signal (Voice Operated Xmit (transmit)) to key the transmitter when the telephone subscriber’s voice is present.
Full anf half duplex operation
Designed for full-duplex, half-duplex, or simplex operation.
Compact desktop package
The compact desktop package has a built-in speaker with volume control to monitor call progress.
Operation with OEM transceivers
The 2061 is packaged in a 2000 series enclosure and is designed for direct interface via our standard bus cable to the Barrett 2050 transceiver. It can however be interfaced to other suitable HF transceivers.
General
Output level to phone line
Nominally 0 dBm
Input level from phone line
Nominally 0 dBm
Frequency response
300 to 3000 Hz ±2 dB
Output impedance to phone line
600 ohm
VOX sensitivity
Adjustable internally
VOX hang time
0.5 seconds
Ultimate hybrid balance
-50 dB measured with a single tone
Physical characteristics
Size
185(w) x 270(d) x 70(h)(2000 series standard enclosure)
Weight
0.8 kg
User environment
Operating temperature
-20°C to +55°C
Storage temperature
-40°C to +85°C
Humidity
Up to 95% @ 55°C
Shock
MIL-STD 810G Method 516.6
Vibration
MIL-STD 810G Method 514.6
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