Phau Ntawv Qhia

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Page 2 of 10 VH Electronics Slovakia www.vhelectronics.sk
Acknowledgment
Thank you for purchasing Power linear amplifier TAJFUN 1000 50/70 from VH Electronics. During
its production, we used the latest knowledge in the field of VHF Power amplifiers and the most
advanced technology in the management, communication and display systems. We believe that our
product will exceed your expectations and will be working properly to your satisfaction.
Please take a
few moments to read this manual and get acquainted with this device.
I. GENERAL INFORMATION
I.1 Description
TAJFUN 1000 is a small, lightweight but robust LDMOS VHF Power Amplifier (hereafter PA)
working in amateur 50/70 MHz band with output power up to 1kW.
I.2 Technical parameters
 Frequency Coverage 50 - 54 MHz and 69,5 - 71,5 MHz Amateur band
 Operating Mode FM, SSB, CW, DIGI
 Output Power 1000W / 650W CW, 800 / 520W SSB
700W / 450W @ 21°C FM and DIGI 50% duty cycle
 Input Power 11 - 15W ( Inside 6dB hybrid attenuator )
 Power Gain Typically 23dB
 LDMOS MRFE6VP61K25 ( 1200W ) PUSH PULL Configuration
 Class Operating AB
 Input / Output Impedance 50 Ω Connector 2 x N-female
 Suppression of harmonics ≤70 dBc (Low Pass Filter)
 Intermodulation distortion -32 dBc
 Cooling Robust heatsinks, 3 fans PA + 1 fan Power Supply
 Communication ports USB, LAN
 Coaxial Relay CX600NC – CX140D
 Power Supply Inside Input: 195 - 277VAC, 45 - 66Hz
Output: 53VDC / 1800W
 Working temperature 0 - 45°C, Max. Humidity 90%
 Dimension 266 x 105 x 294mm ( width x height x depth )
 Weight 6,2kg