Overview

ICOM IC-7851 HF/50MHz Transceivers

At last, the Pinnacle of HF Perfection--The ICOM IC-7851 HF/50 MHz Transceiver. Based upon the famous, world-class ICOM IC-7800, the new design of the ICOM IC-7851 HF/50MHz Transceiver incorporates exciting features and advanced capabilities that were introduced in the IC-7850LE Anniversary Edition. Here are some details:

* IC-7851 Transceivers utilize ICOM's newly developed 1.2 kHz optimized roofing filter, greatly improving the in-band adjacent signal performance. This enhancement enables the up-conversion design of the IC-7851 to have excellent filter performance while providing a dynamic range that outperforms the competition in tests of 10 kHz or less signal separation.

* Breaking tradition, ICOM employs a Direct Digital Synthesizer (DDS) along with a Phase Locked Oscillator for their IC-7851's Local Oscillator (LO). The LO's C/N ratio excels beyond competing transceivers, with generated noise components in both receive and transmit signals reduced virtually below detection.

* With the latest design of the LO, IC-7851 becomes the new benchmark for Phase Noise with -150dBc/Hz at 10 kHz offset and -140dBc/Hz even at 1 kHz offset. The previous mark of Phase Noise excellence was -138dBc/Hz at 10 kHz offset and -110dBc/Hz at 1 kHz offset.

* By using its dedicated DSP for the Fast Fourier Transform (FFT) spectrum scope, the IC-7851 transceiver provides faster sweep speeds and better accuracy than the IC-7800.

* Scope enhancement in the IC-7851 includes the ability to simultaneously "see" activity in both receivers. This is useful when searching for multipliers on the Sub band receiver while maintaining your operating frequency on the Main band receiver.

* Connect a mouse the IC-7851 USB port to change the operating frequency, tune the frequency, switch Fixed and Center mode, adjustable sweep speed and more. Also, simply click on a signal on the scope and that frequency is automatically selected as your operating frequency

Additional outstanding features for ICOM's new IC-7851 include:

* Receive coverage: 0.030 - 60.0 MHz
* Transmit coverage: 160 - 6 meters
* Transmit output power:
-- SSB, CW, RTTY, PSK, FM Less than 5 and up to 200 watt
-- AM Less than 5 and up to 50 watt
* Antenna tuner matching impedance range: 16.7 to 150 ohm unbalanced (HF bands; VSWR better than 3:1)
* Antenna tuner matching impedance range: 20 to 125 ohm unbalanced (50 MHz band; VSWR better than 2.5:1)
* Simplified RS-BA1 Remote Control
* Supports PSK63 as well as PSK31
* SD card slot for voice and data storage
* USB, Ethernet and S/P DIF Interfaces
* Enhanced Digital Voice Recorder
* Comfortable solid feel main dial
* Firmware updates can be made from an SD card or USB flash drive

Note: For additional information, please look at the files under the "Documentation" tab.

This landmark elite-class transceiver, the IC-7851 becomes the flagship of ICOM's line of high-quality HF transceivers. Whether you are contesting, DXing, using digital modes or just looking for QSOs, ICOM IC-7851 HF/50MHz Transceivers, available from DX Engineering, are the cream of the crop.

Documentation

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