Using measurement methods described in Australian/New Zealand Standard AS/NZS 4770:2000

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1 Barrett 2050 HF transceiver Using measurement methods described in Australian/New Zealand Standard AS/NZS 4770:2000 General Specifications Equipment Standards Transmit frequency range Receive frequency range Channel capacity Frequency resolution Frequency stability Intermediate frequencies Operating modes Operating temperature Humidity BARRETT 2050 transceiver local (desktop) and remote (trunk mount) configurations Exceeds/complies with Australian/ New Zealand standard AS/NZS 4770:2000 and AS/NZS 4582:1999 Exceeds/complies with European standard ETSI and associated Amendment A Exceeds/complies with EMC and vibration standard IEC 945 Complies with MIL Spec. 810 F for drop, dust, temperature, shock and vibration. ALE to MIL-STD B 1.6 MHz to 30 MHz (continuous) 500 khz to 30 MHz (continuous) Up to 500 programmable channels (simplex or semi-duplex) 10 Hz program mode 1 Hz tunable receiver ±10 Hz or better than 0.3 PPM over temperature range - 30 C to + 70 C 45 MHz and 455 khz (double conversion) J3E (USB, LSB) - H3E (AM) - J2A (CW) - J2B (AFSK) Optional J2B (AFSK) with narrow filter -30 C to +60 C (-35 C to +70 C at reduced specification) 95% relative, non-condensing Display system Super-twist backlit LCD graphics display 128 x 64 Controls Programming interfaces 23 key keypad - illuminated Infrared (IR) and RS-232 Page 1 of 5

2 Supply voltage Current consumption 13.8V DC + 20% / - 10% (negative ground) Polarity protected. Over voltage protected 470mA receive (muted, back lighting off) Antenna impedance 50 Ohms unbalanced Weight Dimensions Selcall system Scan types Scan channels Scan rate Switching speed 2050 local control configuration 2.58Kg remote (trunk mount) configuration, main unit 2.36Kg remote (trunk mount) configuration, control head 0.22Kg local control configuration 185mm W x 270mm D x 70mm H 2050 remote (trunk mount) configuration, main unit 185mm W x 235mm D x 70mm H 2050 remote (trunk mount) configuration, control head 185mm W x 33mm D x 70mm H Based on CCIR 493-4, four and six digit systems. Protocol available for free distribution. Also true CCIR standard and other manufacturers emulation Selcall, Voice (syllabic), AGC derived signal level 8 scan tables, each with up to 30 channels Selcall Scan - Fixed at 500mS Non Selcall scan - Adjustable from 100mS to 5 secs Less than 15mS Tx to Rx, Rx to Tx Page 2 of 5

3 Receiver Specifications Sensitivity -120dBm (0.224µV) for 10dB SINAD - J3E Mode pre-amp on -115dBm (0.398µV) for 10dB SINAD - J3E Mode pre-amp off -110dBm (0.708µV) for 20dB SINAD - J3E Mode pre-amp on -105dBm (1.260µV) for 20dB SINAD - J3E Mode pre-amp off Selectivity J3E -1 khz and +4 khz better than 50dB -2 khz and +5 khz better than 55dB -5 khz and +8 khz better than 60dB Selectivity J2B (optional) -500 Hz and Hz better than 60dB 20dB SINAD to 14dB SINAD Blocking (max. usable sens.) -20 khz and +20 khz better than 71dB by 6dB or cause and output level change of 3dB Blocking (+60dbuV wanted) -20 khz and +20 khz better than 60dB (+110dBµV) by 6dB or cause and output level change of 3dB Intermodulation better than 89dBµV The level of two unwanted signals, that is within 30 khz of the wanted signal, above the level of a wanted signal that reduces the SINAD of the wanted signal to 20dB Spurious response ratio Reciprocal mixing In-band IMD Clarifier range AGC efficiency Better than 70dB Better than 105dBµV Better than 34dB Receive only 1 Hz steps up to ±1 khz (dependant on configuration) Range - less than 6.0dB variation with an input signal producing 20dB SINAD max usable sensitivity level to a signal 70dB above that Page 3 of 5

4 AGC efficiency Increase in SNR - Increasing the input signal level 20dB from the 20dB max usable sensitivity level increases the SINAD by at least 15dB to greater than 35dB Audio Output Audio output impedance Audio response Audio distortion Input protection 4W into 4 Ohms, 2W into 8 Ohms at less than 5% distortion 2 to 80 Ohms Less than 6dB variation from 350 Hz to 2700 Hz Less than 2% at rated power J3E mode Better than 30V RMS from a 50 Ohm source Transmitter Specifications RF output power Duty cycle Protection Sideband suppression Harmonic suppression Carrier suppression Residual hum and noise Spurious emission Intermodulation products Audio frequency response Current consumption 100 watt PEP two-tone ± 1.5dB 125 watt PEP voice ± 1.5dB or 25 watt PEP two-tone ± 1.5dB 30 watt PEP voice ± 1.5dB or 8 watt PEP two-tone ± 1.5dB 10 watt PEP voice ± 1.5dB 100% two-tone input signal with fan option Safe under all load conditions, thermal protection against excessive power transistor temperatures Better than -65dB below PEP Better than -60dB below PEP Better than -55dB below PEP Better than -58dB Better than -60dB below PEP Better than -32dB below PEP (26dB below two-tone peak) Less than 6dB variation 350 Hz to 2700 Hz Voice average less than 9Amps typical Two-tone less than 12Amps typical Page 4 of 5

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Barrett 950 HF transceiver specifications Using measurement methods described in European Telecommunication Standard

Barrett 950 HF transceiver specifications Using measurement methods described in European Telecommunication Standard 300 373. General Specifications Equipment Standards Transmit frequency range Receive