IC-7851 HF/50MHz transceiver with new features such as a 1.2kHz optimized roofing filter, (IC-7850 is a special 50th years Icom anniversary model of 150 units only on the world) Complete Test Report by Adam, VA7OJ/AB4OJ is now on-line on his web-site (un’altro eccellente lavoro di Adam, VA7OJ … tnx! grazie)
The Test Report (download the large pdf, link below) are the results obtained from lab tests which the author conducted on Icom IC-7851 S/N 02001019, kindly loaned by Allan, VE7SZ. The installed firmware version were V1.01 for the receiver test and V1.11 for the trasmitter tests. The baseline configuration for all receiver test was MAIN Receiver, NR/NB/ATT/Notch off, AGC Slow.
Lonk to: Download Complete IC-7851 Test Report VA7OJ
Ic-7851 (or IC-7850) in HF/50MHz operation with new features such as a 1.2kHz optimized roofing filter to improve in-band adjacent signal performance.
The IC-7851 employs a Direct Digital Oscillator (DDS) with a voltage controlled “SAW” Oscillator (VCSO). This new 1st LO Icom design sets a new benchmark for phase noise with -150dBc/Hz at 10kHz offset (-140dBc/Hz at 1kHz offset) and two receivers (Main/Sub) in up-conversion design.
[Note] – Detailed specifications: please see the official sources – All specifications are subject to change without notice – All trademarks belong to their respective holders.- This page is just a non-official overview, where no one should draw any conclusions – All images and versions above is for illustration only. (tnx).