ICOM IC-7700 HF Base Station


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ICOM IC-7700
Brand: ICOM
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Product Description

ICOM IC-7700 HF Base Station


The essential elements for top-of-the-line HF transceiver performance begin with an exceptionally linear, low distortion design. Starting with electronic component selection, Icom integrates state-of-the-art analog performance with the latest digital technology to achieve superior receiver performance.



  • 7-inch wide color TFT LCD
  • 4 antenna connectors
  • 2 front USB ports
  • RTTY /PSK31 operation without PC connection
  • Digital IF filter
  • Digital Twin PBT
  • Noise reduction
  • Digital voice recorder
  • Real time spectrum scope
  • 110dB dynamic range
  • +40dBm 3rd order intercept point
  • Double conversion superheterodyne system
  • High specification inband IMD
  • Band pass filter
  • DIGI-SEL digital pre selector
  • 4 pre-amplifiers
  • 1st mixer
  • ...and more


See details such as response time, color, resolution clearly with a 7 inch wide color LCD screen. The active matrix display was selected to provide superior performance. An 800 x 480 screen shows operating frequencies, carious setting and conditions as well as spectrum scope, S-meter and decoded messages. The S-meter shows an analog-like swinging needle that is smooth and accurate. In addition to the analog like-style meter, the IC-7700 has a digital multi-function graphic meter and edgewise meter - chose your favorite style! Further more, the IC-7700 has a VGA connector for an external monitor and an S-meter connector for an external analog S-meter.


Two USB ports on the front panel allows you to easily connect a USB type keyboard or USB memory stick to save transceiver settings, update firmware, or transfer settings to other IC-7700. Operators may record their preferred IC-7700 settings such as filter, Digital Voice Recorder (DVR) memories, antenna settings, etc. then simply insert their USB Drive into the IC-7700. In a flash, the IC-7700 is now "their rig", with minimal down time!


The IC-7700 has 4 antenna connectors (ANT1 to ANT4) with an automatic antenna selector. Once you program the operating bands in each antenna memory, the IC-7700 will automatically select the antenna as you change the operating band


With a dedicated DSP unit, the IC-7700 spectrum scope achieves 80dB of dynamic range at the signal input level. It also improves the scope response time and signal resolution, so that it is possible to accurately tune to the intended signal as you see it on the spectrum scope screen. The spectrum scope range can be set independently from the receiving frequency. You can monitor band conditions between the selected sweep edges (Fixed mode), as well as sweep a selected band width centered on the receiving frequency (Center mode). In addition, the scope has useful functions including scope attenuator (10dB/20dB/30dB), 2 types of marker (Transmit, Receiver) and Max hold function. The mini scope function is convenient for continuous monitoring even while adjusting the set mode.


The digital twin PBT eliminates interference and noise from signals above and below your frequency by changing the IF filter bandwidth. The IF shift function allows you to shift or move the IF passband to either side to more accurately receive the signal. The passband width, shift direction and steps (50Hz) are graphically displayed on the LCD


The DSP-based digital IF filter of the IC-7700 rejects signals out of the pass band, and keeps the desired signal free of any distortion or degradation of quality. Depending on the operating situation, for example handling a pile-up or receiving a very weak signal, you can flexibly change sharp and soft filter shapes or reduce or shift the filter width, even while receiving a signal.



The noise reduction separates the target signal from random noise components. By using the excellent performance of the 32-bit floating point DSP, this separation is made immediately without a delay and extracts signals from noise components. The noise reduction suppression level is variable in 16 steps to adjust the balance between the S/N ratio and clarity.


While multiple IF stages can become a source of distortion products and spurious responses, the IC-7700 utilizes Icom’s original image-rejection mixers in a simple double conversion superheterodyne. This reduces distortion and produces a much cleaner audio signal compared to triple or quadruple superheterodyne receivers.