Power amplifiers

Size 275 x 275 x 160(h) mm Weight 1.670 kg

EB300 – это транзисторный линейный КВ усилитель мощности с ФНЧ 1,8-54 МГц, предназначенный для эксплуатации с любительскими радиостанциями. Отличительные особенности усилителя EB300: Ø мгновенная готовность к эксплуатации; Ø компактный размер, небольшой вес; Ø отсутствие необходимости замены компонентов в связи с износом; Ø повышенный срок службы; Ø отсутствие высокого напряжения в высокочастотной части; Ø возможность автоматизации процесса управления. Характеристики усилителя EB300 Диапазон частот 1,8 – 54МГц (включая WARC) Виды излучения SSB, CW, DIGI, RTTY Входная мощность 20 Вт Выходная мощность 300 Вт (SSB/CW), 200W (DIGI, RTTY) Максимальный КСВ в антенне 2.0:1 Напряжение питания +48 … +53В и +13.8В постоянного тока Ток потребления 10-12А (по +50В), 1А (по +13.8В) Входной импеданс 50 Ом (несимметричный) Выходной импеданс 50 Ом (несимметричный) Входные/выходные разъемы UHF SO-239 Схема усилителя двухтактная, класс АВ Транзисторы выходного каскада SD2933 Размеры - ш х в х г (мм) 290х140х205 Вес (гр.) 3900 Комплектация: КВ усилитель мощности EB300 1 шт. Кабель питания 1 шт. Руководство пользователя 1 шт. EB300 Руководство пользователя.doc

1000W HF MOSFET power amplifier. Operation frequencies 1.8 – 30 MHz Operation modes SSB, CW Input power 29 – 37 W Output power 1000 W Power supply 13.8VDC, 50VDC Drain current max 26 – 29 A IMD3 (@14 MHz, 800W) - 31 dBc Size 310 x 235 x 160 mm Weight 6.2 kG This amplifier use 4 x VRF2933 modern MOSFET transistors. It is equipped with all protections required for safe operation: max input power, max output power, max drain current, SWR on output higher than 2.0:1. It has two levels of air cooling fan speed: normal and forced. Forced mode is engaged when copper heat spreader plate temperature rise above 50*C. If temperature rise above 80*C the PTT line is being disabled. Both thermo sensors has 10*C hysteresis. Two lines LCD shows the output power in Watts and SWR on output. Second line is output power bar graf. Protection status LEDs are placed on boards, but could be transferred to the front panel. Rear side has 2 coaxial connectors (input and antenna) and 25-pin control. The control connector is used to select the LPF bands and has +13.8V, ALC and PTT inputs also. Power amplifier protection device:Protection from exceeding the output power of 1200 watts.Protection against exceeding the maximum drain current of the LDMOS transistor.Protection against overheating - two thresholds of operation:when the copper radiator is heated more than + 50С - the accelerated mode of the fan operation is activated to increase the heat removal.when the copper radiator is heated above + 80 ° C, the protection system trips, breaking the PTT circuit. Transmission is not possible.Protection against exceeding the SWR more than 2.0: 1. The activation of the SWR protection is independent of the output power levelProtection against false / spontaneous band switching in LPF. The activated protection channel is indicated by a lit LED on the front panel of the power amplifier. To reset the error, it is necessary to switch off and on again the power supply of 48-53.7 V. The amplifier is assembled on aluminum frame, easy to place inside the box of suitable size. $1050 The manufacturing time is 2-2,5 weeks.

EB1200 - HF power amplifier 1000 W 1.8-54 MHz with water cooling for SDR HERMES Specifications:Power Requirements 1: 42-53.7 VCurrent consumption: 35 A maximumPower Requirements 2: 13.8 VCurrent consumption: 1,2 AOperating temperature range: -10 ° C + 40 ° C (depending on the type of liquid used in the cooling system)Input Connector: SO232Output connector: SO232Output Power: 1000W CW / SSB 600 W digital modes of communication with 42 V power supply.Input power: 0.5W.Spurious emissions: HF bands - less than -50 dBIMD of the 3-rd order - less than -30 dBInput / output impedance: 50 OhmSWR: 2.0: 1 or lessConnector for control cable: 25 pin Power amplifier protection device:Protection from exceeding the output power of 1200 watts.Protection against exceeding the maximum drain current of the LDMOS transistor.Protection against overheating - two thresholds of operation:when the copper radiator is heated more than + 50С - the accelerated mode of the fan operation is activated to increase the heat removal.when the copper radiator is heated above + 80 ° C, the protection system trips, breaking the PTT circuit. Transmission is not possible.Protection against exceeding the SWR more than 2.0: 1. The activation of the SWR protection is independent of the output power levelProtection against false / spontaneous band switching in LPF. The activated protection channel is indicated by a lit LED on the front panel of the power amplifier. To reset the error, it is necessary to switch off and on again the power supply of 48-53.7 V. Dimensions: 275 x 280 x 175 (height) mmWeight: 6 kg Усилитель мощности - amplifier ФНЧ - LPF Тандем матч с TXRX - tandem match with TX-RX unit Индикатор - LCD power SWR meter Устройство защиты - protector unit $1800 Attention! The amplifier can not be used with SunSDR!