RF-systems DX-One Professional Active Antenna (Mk-1) Mil-spec pro-grade HF - Low VHF band Receiving antenna Start Price USD 200.00 Current Price USD 331.42 Time Left - Bid Count 4 Buy It Now Price - Reserve Price - Start Time Monday, November 17, 2008 End Time Monday, November 24, 2008 Location Tokyo See more about 'RF-systems DX-One Professional Active Antenna (Mk-1)' Description The world famous RF-systems DX-One Professional receiving antenna renowned for its unsurpassed receiving capabilities and distinctive design. The DX-One Pro is made of high-impact plastic and a weatherproof aluminum alloy. The amplifier is protected from outside interference sources by a stainless steel housing. All mounting hardware is also made of stainless steel. The antenna is filled with CFC-free polyurethane foam, completely watertight and therefore resistant all types of climate. It is made to withstand wind speeds of up to 160 km/hr. Please note: The outdoor unit on offer is in good, used condition but it is weathered! The DX-One Pro has been approved for and is currently in use by embassies, as well as military and government monitoring stations. Selected specifications: Frequency Range: ......... 20kHz-54MHz (monitoring spec: 10 kHz-85 MHz) Receiving Pattern: ......... Omnidirectional ±3 dB Polarization:................. Horizontal and vertical> Gain: ........................ + 6 dB into 50 ohm (ref. dipole) Output level: ................ 2 x 10 dBM into 50 ohm Noise Figure: ................ 4 dB Harmonic Distortion: ......... < 0.05% Intercept points: ............ +75 dBm (2nd order), + 50 dBm (3rd order). Attenuator: ................. Constant impedance attenuator. +6, 0, -10, -20, -30, & -40 dB Receiver output: ............. 2 devices isolated via a directional coupler Medium-wave suppression: ............ Switchable bandpass filter for 540-1640 kHz Static charge protection: .......... DC leak-path to ground + 1 nanosecond semiconductor protection + a 10.000 Amp impulse (8/20 µsec) gas-arrestor Power dissipation amplifier: .......... 4.5 Watts class A ultra linear Power Requirement: ................. 95 - 120 vAC, 50/60 Hz 8 VA Impedance: ......................... 50 ohms Additional features include: Medium-wave suppression switch, attenuator dial. For more detailed information and specifications on PDF: http://www.rf-systems.nl/pdf/dx1.pdf I am the original owner of this great antenna. I used the RF-systems DX-One Professional with a LOWE HF-250 receiver and the RF-systems MTA passive antenna combined with RF-systems SP-1 combiner/splitter; an unbeatable combination, all up for auction! Free Shipping to winners of three items! (MTA excluded due to size restrictions). Shipping by Express Mail Service (EMS), which is secure, traceable and reasonably quick (allow about a week for North America and Europe). Shipping includes full insurance. EMS Charges: Asia: $70.00 North Am: $90.00 Europe: $100.00 S.AM/Africa: $180.00 Japan: $20.00 Please note: Buyers are responsible for all Customs and other Import charges that might apply to their respective countries. This antenna is in excellent working order and guaranteed to be as described although the specification might vary slightly due to vintage of item; the photos are of the actual item on offer. Please note: All sales final except in cases of description errors. Place a Bid!