Icom IC-7851 HF Transceiver 200W Like New: скачать в хорошем качестве

Icom IC-7851 HF Transceiver 200W Like New:

Hanya ada 100 Unit di Dunia ! ❤️ 60th Anniversary of ICOM !! 👑 Icom IC-7851 HF Transceiver 200W Like New: Solid design basics and HF expertise raising the bar Contesters and DXers are always looking for that competitive edge to magically pull out the weak signal that is either the rare country or multiplier they need to climb up the list. Larger antennas, higher gain pre-amps and other devices in line are great. However, what happens inside the radio with all those signals coming down your feedline can defeat all your efforts. With the design of the IC-7851, Icom’s engineers focused on a new Local Oscillator (LO) that drastically reduces the phase noise. As a result of this design, the purity of the LO achieves a Reciprocal Mixing Dynamic Range (RMDR) of 110dB. In addition to the incredibly clean LO allowing you to hear the weak signals, the new spectrum scope design enables you to see the weak ones! Faster processors higher input gain, higher display resolution and a cleaner signal from the receiver’s LO will give you a new window into the RF world. Adding this performance and functionality for both receivers give you a dual scope portal. Competitive advantage: RMDR (reciprocal mixing dynamic range) RMDR: 110dB raising the bar ! Design advances developed by the Icom HF engineers for the Local Oscillator (LO) enable the IC-7851 to set a new benchmark for amateur radio receivers. The goal was to dramatically reduce the phase noise that degrades the target signal due to the sum of the entire signal present. The result was a RMDR of 110dB*. Below is a comparison of the improvement over the IC-7800. *At a 1kHz offset frequency Receiving frequency: 14.2 MHz Mode: CW, IF BW: 500 Hz Roofing Filter IC-7800 = 3 kHz, IC-7851 = 1.2 kHz RMDR comparison 1.2 kHz Optimum roofing filter Scope comparison Mini spectrum scope and audio scope Mini dual spectrum scope and audio scope Specifications for the audio scope Attenuator: 0 dB, –10 dB, –20 dB and –30 dB FFT scope with waterfall and FFT scope without waterfall Waveform color and drawing (outline or fill) settings for the FFT scope Specifications for the oscilloscope Level: 0dB, –10 dB, –20 dB and –30 dB Sample rate: 1ms/Div, 3ms, 10ms/Div, 30ms 100ms and 300ms , 5 Waveform color setting Dual scope function While you can watch both receivers on the scope of the IC-7800, within the limits of the scope bandwidth, the IC-7851 introduces the new dual scope – the ability of watching both receivers in separate spectrum scopes. The dual scope function is vital for watching for multipliers or band openings in contests, or working all bands/modes on a DXpedition. Dual scope example (Vertically aligned) Dual scope example (Horizontally aligned) High resolution waterfall display Icom IC-7851 Specifications : Frequency coverage opened: TX/RX : 0.030– 60.000 MHz Mode USB, LSB, CW, RTTY, PSK31/63, AM, FM Number of channels 101 (99 regular, 2 scan edges) Antenna connector SO-239×4 and BNC×2 (50Ω unbalanced (Tuner off)) Power supply requirement: 85–265V AC Temperature range 0°C to +50°C; +32°F to +122°F Frequency stability Less than ±0.05ppm (0°C to +50°C @ 54MHz, after warm up) Frequency resolution 1Hz (minimum) Power supply requirement : 85–265V AC Power supply requirement : Tx Max. power: 800VA Rx Stand-by: 200VA (typ.) Max. audio: 210VA (typ.) Dimensions 425×149×435 mm; 16.73×5.87×17.13 in Weight 23.5 kg; 51.8 lb TRANSMITTER Output power : 5~200 Watts SSB, CW, RTTY, PSK31, FM, AM (50W) More than –20dBm Modulation system SSB AM FM Digital P.S.N. modulation Digital low power modulation Digital phase modulation Spurious emission More than 60dB (HF bands) More than 70dB (50 MHz band) Carrier suppression : More than 63dB Unwanted sidebandr suppression : More than 70dB δTX variable range ±9.999 kHz Microphone impedance: 600Ω (8-pin connector) RECEIVER Receive system: Double conversion super-heterodyne system Intermediate frequencies Sensitivity (typical) SSB (BW: 2.4 kHz, sharp)CW, RTTY, PSK (BW: 500 Hz, sharp)AM (BW=6KHz)FM (BW: 15 kHz) More than 2.4 kHz/–3dB Less than 3.6 kHz/–60dB More than 500 Hz/–3dB Less than 700 Hz/–60dB More than 6.0 kHz/–3dB Less than 15.0 kHz/–60dB More than 12.0 kHz/–6dB Less than 20.0 kHz/–60dB Spurious and image rejection ratio More than 70dB Audio output power More than 2.6W at 10% distortion with an 8Ω load RIT variable range ±9.999kHz ANTENNA TUNER Matching impedance range: HF bands: 16.7Ω to 150Ω unbalanced (VSWR better than 3:1) 50MHz: 20Ω to 125Ω unbalanced (VSWR better than 2.5:1) Minimum operating power: HF bands: 8W 50MHz band: 15W Tuning accuracy VSWR 1.5:1 or less Insertion loss Less than 1.0 dB (after tuning) All stated specifications are subject to change without notice or obligation. The LCD display may have cosmetic imperfections that appear as small or dark spots. This is not a malfunction or defect, but a normal characteristic of LCD displays. Supplied Accessories: Rack mount handles SD card AC power cable Spare fuses Plugs 📲 0817161444