Chinese HF power amplifier SSB CW 1000W MOSFET VRF2933 copper and heat sink no LDMOS HF power amplifier 1000W with modern MOSFET transistors VRF2933. See Youtube video about this MOSFET VSWR ruggedness https://www.youtube.com/watch?v=bMEsEATudgM Assembled and tested PCB with matched quad of transistors VRF2933 – 1000W output. Transmission line output transformer on 43 material cores. Temperature…
Photo: Image courtesy of Tektronix. The TSG4100A series of vector signal generators from Tektronix features three models that provide outputs that range from direct current to 2 GHz, 4 GHz, and 6 GHz. These instruments provide spur-free outputs with phase noise of -113 dBc/Hz at 20-kHz offset from a 1-Ghz carrier and a frequency resolution…
Analog or VoIP Audio Interface Software-Defined SSB and ISB Configurations DSP Based Syllabic Squelch Remote Control via Serial and Ethernet Comprehensive BITE to LRU Internal AC Power Supply Data Link – MIL-STD-188-203-1A TADIL A and Link 11/22 (Factory Installed Option) HF Data – MIL-STD-188-110 A/B/C and STANAG ALE – 2G MIL-STD-188-141 A/B/C and 3G STANAG…
The Sunair T-10000A is the hallmark solution for mission-critical communications applications requiring hemispheric coverage. The transmitter system combines solid-state RF power amplification and control technology to produce a failsafe high power solution, and operates in a frequency range of 1.5 MHz to 30 MHz. Maximum power output is 10 kW to facilitate long-range hemispheric communications…
Радиосвязь с любительской радиостанцией Организации Объединённых Наций с самого моего детства была одной из удивительных, захватывающих дух, мечтой. Наверное такая же, как и связь с U5ARTEK или RK3KP. Но если “Артек” и “Комсомольская Правда” были значимыми в основном только для российских пионеров, то 4U1UN была уникальной для всего Мира. Помимо того, что ООН – место…