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Dayton Hamvention 2016 New HT D-STAR – Elecraft KX2 – DV4mobile – FT-891

Dayton Hamvention®, the world’s largest amateur radio gathering, celebrate its 61st show on May 20-22, 2016.

FTdx100-Dayton-2016
YAESU FTdx-100 SSB/CW 120W (50 AM) HF Vintage Transceiver (1967)
iPortable_Pro2
Tactical – Pro2 Speaker Rack 4US Shallow and 4UD Deep

Tactical – iPortable Pro2 Speaker Rack Systems are the best functional design for portable communications and fieldwork.

Dayton Hamvention 2016 News:  JVCKewood Coming Soon an HT with APRS Digital DV D-STAR Transceiver – Tribander 144/220/430 MHz, Builtin GPS unit and Color TFT Display.

Kw-digital_HT-2-May2016

Kenwood USA Corporation (HT prototipo/tentative)- The evolved tribander Main features:   Wide band multi mode RX with SSB/CW reception with IF filter – DSP-based voice processing – APRS-compliance – DIGITAL compliant with voice/digital mode D-STAR networks – Compliant with Bluethooth and Micro SD and Micro-USB – Built-in high-performance GPS unit – IP54/55 Weatherproof – Color TFT Display (transflective type). (! See official data & news)

Kw-digital-4_HT-May2016

The Elecraft booth at Hamvention 2016 display the new KX2 HF radio, an ultra-portable transceiver with a fit in your pocket size (13 oz / 0.3 Kg!) Operate on 80 -10 meter ham bands – All modes: SSB, CW, and Data PSK31/RTTY with or without a PC (four sub-modes) – The KX2 Size: 2.8”H x 5.8”W x 1.5”D; only 13 oz (0,3 kg).

KX2-Dayton-2016

Quick Specs – Up to 10 W on 80-15 m, 8 W on 12 and 10 m (typ.) – Software-defined-radio (SDR) architecture – Switchable preamp and attenuator – Easy-to-use Passband Tuning (PBT) for shift/width/hicut/locut; Roofing filters automatically track DSP filter settings – Simultaneous dual receive over up to +/- 23 kHz for split-DX operation – (Internal wide-range ATU option).

KX2-interno-1

Dayton Hamvention 2016 – New DV4mobile Tribander 144/220/430 MHz all mode DMR, D-Star, C4FM (System Fusion) disponibile entro Q4 2016, al 2017 sviluppi software prevedono anche per i modi digitali P25, dPMR, NXDN e NEXEDGE.

DV4_Dayton-2016

The new DV4 mobile for D-Star, C4FM, DMR (It will transmit all mode, it can be link directly to a Reflector like a DV4home when there’s no available repeater). – With subsequent software updates 2017, the radio will also support P25, dPMR, NXDN and NEXEDGE.

Yaesu USA Booth display the new FT-891 HF/50MHz Transceiver (is an FT-857 style replacement!)  FT-891 FCC ID: K6620651X50 of 24 Mar. 2016 – Mobile HF/50MHz Transceiver 100 W  160 – 6m all mode – 32-Bit IF DSP – Detachable Display.

FT-891-HF-6m_Dayton-2016

Frequency Range Tx: 1.8 – 54 MHz (Amateur bands only) Rx: 30 kHz – 56 MHz – Receiver type: SSB/CW/AM Triple-conversion Superheterodyne, 1st IF 69.450 MHz, 2nd 450 kHz, 3rd 24 kHz (FM: Duble conversion)  3 kHz Roofing filter – Weight: 1.9 kg (4.18 lb).

FT-891_rear-panel

Icom IC-7300 – Ein kleiner Clip von mir mit der Remote Software RS-BA1 verbunden mit dem IC7300 – video 19/5/2016  by PA5HR.

RS-BA1-remote-pa5hr1

Link to: Video di Bert con il remote software RS-BA1 e IC-7300

[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)

IC-7300 Update Ver. 1.13 – IC-7300 User Evaluation & Test Report by VA7OJ,Adam

Icom IC-7300 Firmware Version 1.13 Update 27/5/2016 – The firmware will be updated to the following versions: Main CPU: 1.13 Front CPU: 1.01 – DSP Program: 1.07 – DSP Data: 1.00 – FPGA: 1.11 – Read the official Icom instructions first! [Note !] Never turn OFF the transceiver power during the update.

Ver-1-13_cpu-display-med
Pictur data is only for information (see tthe official web!)

An SD card or an SDHC card is required – Format the card in the IC-7300 before using it for the update. (First, save any data that is on the memory card or separate card, … if necessary) –
Read the Icom user manual and official instructions first! – If you follow this and make a mistake, or it doesn’t work for any reason, I am not responsible. Link to: Icom  Support >Download >IC-7300 1-13 (ENG)

The IC-7300 employs an RF direct sampling system,  where RF signals are directly convert to digital data (ADC). Then processed in the FPGA (Field Programmable Gate Array) and in the DSP >D/A. – IC-7300 DSP an TMS 320C6745DPTPA3 (idem to DSP rx of the IC-7850 – 7851) at 2250 MFLOPS –  370MHz !

IC-7300-block-diagram

IC-7300 the User Evaluation & Test Report  by Adam, VA7OJ’ is now on-line on his web-site – See the link below for download a large pdf  (total pages 40) – (tante grazie Adam per  l’interessante ed ampio tuo report-test).  – The Report (Iss. 1) describes the evalutation of IC-7300 S/N 02001981 from a user perspective. The Appendix 1 presents results of RF lab test suite performed on the radio.

IC-7300 OVF-colsein-02

ADC Clip Levels – (light the on-screen OVF red icon) OVF indication occurs only when a strong out-of-channel signal is present. In-channel signals cause AGC action which attenuates the signal at the Rx ADC imput  (LTC2208-14) via an diode PIN BAP70Q (D1251).

IC-7300-Notch-On

Link to: download the IC-7300 report test by VA7OJ’ Adam (ENG)

Recirpocal Mixing Noise occurs in a direct-sampling SDR receiver when the phase-noise sidebands of the Rx ADC clock mix with strong signals close in frequency to the wanted signal, producing unwanted noise products in the detection channel and degrading the receiver sensitivity.
RMDR (reciprocal mixing dinamic range) VA7OJ, Adam Test condition: CW mode, 500 Hz filter, max RF Gain Preamp off, ATT off, NR off, AGC-M. NB off – (…. I point to only two numbers below):
Ofset frquency:    2 kHz RMDR: 109 dB & Phase noise: -136 dBc/Hz
Ofset frquency: 20 kHz RMDR: 119 dB & Phase noise: -146 dBc/Hz

IC-7300-RTTY-keybord

IC-7300 includes an PLOT Measurement SWR! …You can measure the SWR over the entire set frequency range – Touch >[] start & marker displayed !

Plot-SWR-ondisplay1-i0gej

The RF Direct Sampling (ADC) is protected by one of the fifteen bandpass filters (BPF) – Software-defined radio (SDR) is a radio communication system that utilizes software protocols bulit-in to replace “hardwired” components  –

IC-7300_FPGA-DSP-unit

The IC-7300  incorparate an ADC (RX ADC type is not known!)  that allow direct digitization of the RF spectrum limited by one of the BPF. – Icom imploys an FPGA Altera Cyclone IV EP4CE55F2317N and the DSP TI TMS320C6745 – Main CPU is the R7S7210000VC.

RS-BA1-remote-pd3ct

The Icom RS-BA1 Remote Control Software allows you to use the transceiver installed in another room using your home network or even from a remote location over the Internet.
[note] The spectrum scope with the waterfall function can be observed on the RS-BA1. (For a single band on only the IC-7851, 7850 and IC-7300) – more info in the> RS-BA1 Icom Inc. official web-page

Spectrumscope-1MHz

IC-7300 Spectrum Scope – Mode: Center – Grid: 100/10dB – Span: 1MHz (-500kHz & +500kHz), see the picture above.

IC-7300-vs-FT-991

 [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)

Kairos Multi-protocol Soft DSP Radio Dual-mode Digital/Analog & IP Net

KAIROS is a multi-protocol transceiver/repeater that implements all mod-demodulation and filtering processes via Software by a DSP (Digital Signal Processor), following the “soft radio” concept. Dual-mode analog and digital modulation – IP Multicast & Simulcast – Soft Diversity vectorial treatment of two or more incoming signals – RF linking in DMR and analogue modes – SIP and AMBE +2 Gateway & SIP/RTP-IP network for wide range applications & utilityes!

Radio-Activity-Kairos-rear-1

It allows to manage multiple protocols at the same time to perform, for es., a dual mode in real time, according to the incoming radio (or IP) signals. (soft & hardware platforms is based on a Linux O.S. core). KAIROS Series ETSI / FCC  / CE certified – Designed and manufactured in Italy by  Radio Activity Srl – 20128 Milano IT.

Kairos-front-rear-combi

KAIROS, thanks to the “soft radio” designin, approaches this problem, with the same techniques adopted in the most diffused digital communication systems like GSM, GPRS, WiMAX, LTE etc. – It is equipped of 2 coherent indipendent receivers that, connecting then to 2 different antennas, realizes a “soft space diversity” reciving system. – When operates in digital, KAIROS manages the 4FSK modulation, it is the standard mod for DMR & P25, and can also manage, on request, the GMSK constellation and many generic FSK standards like the POCSAG groups.

built-in_Sig&Prot

The KAIROS rtx is dual mode analog/digital with the automatic switch between the Analog / DMR services. – The old FM rtx may operate with the new digital one through the same network.
KAIROS can run a “DMR Gateway” agent to interface Analog and DMR radio systems to several external networks. – The DMR Gateway Agent traslates Voice (full duplex audio stream from/to) and Data streams. (this runs in the Kairos engine without the need of external PC) [Note] (More info: …see the official data of Radio Activity pdf)

Link to: Downloda the offcial broshure of Kairos’s (in ENG) pdf

italiano Come si potrà leggere dal link qui sotto, IW7DZR, Giacomo e IW0RED, Marco dell’Associazione CISAR stanno già provando con test applicativi apparati KAIROS UHF nel campo radioamatoriale. – In digitale il DSP incorpora e gestisce mod-demod 4FSK per modi DMR e P25 e in dual-mode anche FM analogica – Kairos supporta reti Multicast e Simulcast per realizzare reti Multisite tipo professionale. – Il software fornito gestisce anche un ricevitore in “diversity” con due antenne per il trattamento vettoriale di più segnali in ricezione. – Fa parte del gruppo test anche Artem, R3ABM,  che ha elaborato il software CronosAgent  per applicarlo sotto BM (BrandMeister) !! Attendiamo altre news.

Link to: Kairos test-report IW7DZR & IW0RED on CISAR web (IT)

Lab-tests-ik6puo_03-2016

 [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)

IC-7300 FCC ID AFL376500 – The First Impressions & Video by AB4BJ Blog

IC-7300 RF Direct Sampling System is being used in an entry level HF 50MHz (70MHz EU) radio – This device has been approved by the F.C.C. on 24 February 2016 – FCC ID AFJ376500 (Federal Communications Commission)
The IC-7300 Basic and Full Manual in English is now downloadable, along with only Basic Manuals in German/Spanish/French/Italian.

K3-vs-IC-7300-b

IC-7300 Universal Radio List Price $1699.95 Your Price $1499.95

qsy-1-ready-2-ok

LInk to: Icom Inc. World Support Download Manuals (ENG)

IC_7300 the firts impressions of the new Icom HF/50MHz direct sampling transceiver – Report and video from Orlando Hamcation on February 13, 2016 by AB4BJ  – Icom USA had a demonstration model on display that was shipped from Japan just for this show.  As far as know, it’s the one and only IC-7300 on display in the USA at this time. – Read more, see the video and link to ab4bj blog below…

IC-7300-Orlando-16

One of the great features of this radio is the big real-time spectrum scope with waterfall.  It also has a great  real-time audio scope. Tanks to AB4BJ of test out the IC-7300 on February 13, 2016 during Orlando Hamcation, thanks to Ray Novak, N9JA and Will Jourdain, KI4VXF of Icom America.

IC-7330_Display-closein

Following are the short videos made in YouTube by AB4BJ Blog Home-page an Extra Class Amateur Radio operator in Calhoun, Georgia,  we took as we listened to the radio and worked through some of its many features and functions. (! tanks AB4BJ)
[Note]  The radio is expected to be in production and available for sale by the end of March, 2016.

Video by AB4BJ Icom IC-7300 First Impressions, part III -Feb. 2016

Vedo by AB4BJ Icom IC-7300 First Impressions, part IV -Feb 2016

Per una più completa lettura dell’interessante articolo scritto da AB4BJ sul suo Blog e per visionare tutti e quattro i video da lui pubblicati su YouTube e da poco inseriti nella sua pagina web, si può utilizzare anche questo link direttamente >> AB4BJ Blog

 [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)

FT-991 Update Ver. FEB03 – Problem & Solution: Isue AM TX audio trouble

FT-991 – YAESU Usa released a new firmware FEB03 for the quad-band al modes transceiver. – 03/2/2015 the firmware have been updated: MAIN  to Version 02.10 and C4FM DSP to Version 04.10 -Please read the Yaesu USA FT-991 firmawere update with informatoins and upgrade manual before proceding.

FT-991-V02-10-C4-V04-10_03022016-ok

Il 3 Febbraio era scritto (V04-11) sembra per un “errore di battitura” ora il C4FM DSP è (V04-10) infatti così è il file più recente disponibile. – Yaesu Usa si vede che dopo ha corretto questo sul loro sito web, nel file e nelle informazioni!  – Peccato che, qui in Italia non si trova dove reperire le informazioni e le istruzioni in italiano, compresi gli aggiornamenti integrativi del Manuale d’uso Italia !!

Link to:  Yaesu USA – FT-991 official Web-page (…files in ENG)

AM Transmission Audio Trouble in Some FT-991 Transceiver (see the latest threads on Yahoo-groups) – The cause of bad AM audio
turned out to be a incorrect level setting in the “service menu” [Note]! (*) pay attention to product warranty …, if you change a wrong setting in the service menu (by accident!), press the On/Off button to turn Off the radio, ….take care)

I do not know if someone had already mentioned but maybe i found how to solve (*)your problem : go to the AmateurTele com© link where it is explained step by step how to do – (I hope this help*)

Link to: AmateurTele com© – AM transmission audio trouble (*)

MAIN-Unit_FT-991

FT-991 all modes transceiver a triple conversion with 1st IF frequency of 69.450MHz for all bands /HF/50/144/430 MHz.

Frontend-blockdiagram

[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)

IC-7100 New Firmware E5 Update 15/1/2016 to improve SSB Modulation

IC-7100 Quad-band Transeiver –  Icom Co. Inc.  released a new firmware E5 for the IC-7100 to resolve Low SSB Modulation  issue. – Update 15/1/2016 the firmware have been updated: CPU M to Version 1.11 / DSP I to Version 1.03.

7100-Mic-RF-controll

Icom IC-7100 Firmware E5 Improvements (Icom official web-page)
• The power meter’s visibility is improved.
• The speech compressor function is improved.
[Note] You must install the USB driver before connecting the USB cable between the IC-7100 and the PC (!read more official istructions)

7100-test-E5-25Gen2016

improved visibility of the power meter as it appears they reduced the speed at which it swings and gave more dwell time for the peak indicator in the LCD Display bar-graf. – Icom tweaked default speech compression a bit to boost average power output

Link to: Icom Co. Inc. IC-7100 FirmwareUpdates/Sof. Downoand

Video by DL6KA of 25/1/2016 the IC-7100 average output power with new software update “E5”

[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)

IC-7300 a excitement! – IC-7300 un’emozione! – Basic Manual – RS-BA1 v1.91

IC-7300 HF/50MHz 100W Transceiver – EU version HF/50 MHz /70MHz (50W on 4m) – Receiver system: FPGA Direct Sampling Superheterodine, intermediate frequency: 36kHz (Icom basic manual and sheet) making it possible to simplify the circuit construction.

IC-7300-ATU_main-unit-data

RF signals are directly converted (ADC) to digital data and processed in the [FPGA] Altera Cyclone IV EP4CE55F2317N perform digital down conversion at IF 36 kHz to IFDSP TI TMS320C6745 – See links below to: IC-7300 Product brochure Eng/EU and ICOM IC-7300  Basic Manual ENG, and VA7OJ’ page

IC-7300-blockdiagram-rx

29/1/2016 Icom RS-BA1 Remote Controll Update the Version 1.91
The IC-7300 is now supported (including new IP+ command and real-time spectrum scope screen with waterfal (like IC-7850/51) and other general improvements…. more info to Icom Inc. support web page).

RS-BA1-V-1-91_2016

You must have a previous version of the RS-BA1 software installed BEFORE you can update to version 1.91 (v. previous you purchase) RS-BA1が7300に対応する (ver.1.90 for Japanese users).

New [IP+] Function improves the receiver IMD and the 3rd order intercept point (IP3) performance. When a weak signal is received adjacent to strong interference the ADC is optimized against signal distorsion.

Display-Function-IP+ON

THe IC-7300’s RMDR (reciprocal mixing dynamic range) and Phase Noise characterstics are improved about 15dB (at 1 kHz frquence spacing) comparate to the IC-7200.

RMDR-type

 Audio Scope Function can be used to observe varius AF (audio frequency) characteristics: compressor level, filter width, notch filter width and keying waveform in the CW mode in the FFT scope with the waterfall function and the oscilloscope.

Display-USB-audioscope

The combination of the waterfall function and the real-time spectrum scope assists in maximum receiver performance.

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Video of the IC-7300 running RTTY JA1UMQ calling CQ on 40m ( 23 01 2016 very easy to look at scope by 夜多蚊倶楽部 )

Link to: The IC-7300 Product Brochure ENG ver. EU (pdf)
L
ink to: The IC-7300 web-page by Adam Farson, VA7OJ
Link to: ICOM Inc. IC-7300 Basic Manual in English (72 pag.)

basic-cover
Clik to download the Basic Manula

Icom IC-7300 BASIC MANUAL should make interesting reading.

Icom datasheet says they are using technology found in SDR’s (and other devices) – Direct Sampling SDR combined with a Legacy Superheterodyne back end running a 36 kHz IF & DSP – Real-time Spectrum scope plus an multi-functions display touch-screen. 

Icom probably choose to reuse existing DSP’s software developed and engineered for previous latest radios rather than “start from scratch” for their new generation radio starting in IC-7300.

[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)

IC-7300 Coming Soon – ICOM announced the price in Jp 139,800円+税

IC-7300 RF Direct Sampling system HF/50MHz Transceiver Coming Soon, available in the early 2016* – Icom Inc. announced the price in Japan: 139,800円+税 (JPY + Tax). -News release 2015/12/7: Icom* shipping the IC-7300 within 40 days from this release date in Japanese market! (..link below) –Updated news, picitures, link to new catalog (Jpn) & latest Icom video, …see below (….18/12/2015)

IC-7300-internalviews

Icom IC-7300 「FPGA」最強のコンパクト HF トランシーバー IC-7300 a “FPGA” most powerful compact HF transceiver.
RMDR (tipico: 97dB a 1kHz detuning frequenza di ricezione: 14.2 MHz, MODO: CW, IF BW: 500Hz)

Display color TFT LCD 4.3 inches of the IC-7300 is compatible with touch operation. Frequency and mode of course, you can set the various items such as filters speedily.

italianoIcon Inc. ha annunciato il prezzo del IC-7300, un Ricetrasmettitore a campionamento diretto in RF con FPGA,  che in Giappone sarà pari a 139.800 Yen +Tasse. – Icom* scrive che a 40 giorni dal comunicato inizierà le spedizioni per il mercato domestico in Giappone. – Più avanti anche per gli altri paesi.

Link to: download the new catolg PDF (Jp) by Icom Inc Japan
Link to: scarica il PDF in Italiano di Marcucci Spa (IT Importer)

IC-7300-front-cw

The IC-7300 HF/6m, 100W output on all bands – (for EU version: HF/6m/4m (50W on 4m)) – Modes: SSB (J3E), CW (A1A), RTTY (F1B), AM (A3E), FM (F3E) – Direct-sampling SDR (software-defined radio) receiver architecture Receiver signal path: RF BPF – ADC – FPGA – IF-DSP – DAC – AF stage. –  Digital up-conversion (DUC) transmitter architecture using FPGA driving DAC.

qsy-1-ready-2-ok

IC-7300 the frequency change on touch-screen (1, ready, 2 QSY ok) touch in the vicinity of the target signal, you can still move the frequency in two touches ! (clik the pic to enlarge)
IC-7300 目的信号付近にタッチするこどで拡大表示、さらにタッチするこどで周波数を移動するこ­とができます。

RF-diagram-eng-ok

IC-7300 utilizes the RF direct sampling system – This technology is seen in Software Defined Radios and other radio equipment. – RF signals are mostly processed through the FPGA (Field-Programmable Gate Array), making it possible to eliminate physical mixer and filter devices and offer a high performance real-time spectrum scope in a compact body.

IC-7300-rtty-memory

[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)

Yaesu FT-991 Firmware Update DSP (Ver.01.05) 01/12/15 – QST Nov. Review

FT-991 HF, 50, 144, 430 MHz All Mode – The Yaesu USA Update now the Firmware MAIN Ver. 02.08 of 9/11/2915 Now update software MAIN Ver.02-08 and DSP Ver.01-05 TFT Ver.02-01 of 12-01-2015 (1 Dec. 2015)
[Note] Please read the Yaesu Upgrade Manual & Firmware Informations Main: V.0208  DSP V.0105 etc……
QST magazine reviews the FT-991 on November, 2015 !

[Note]: Please read the Yaesu Firmware Upgrade Manual before proceding to the Yaesu multiple software installations and employees by different types of transfer software .exe!-

FT-991-DspV01-05_01122015

[Note] The FT-991 CAT commands will not work the same after updating to V02-08. – The original CAT “CN” command was only able to set the tone frequency of ENC/CTCSS. – The V02-08 expands the parameter to other than ENC/CTCSS tone frequency; it includes setting the DCS code also.
Please refer to the CAT Oper. Reference Book (v.1508-C0)

Link to: Yaesu USA – FT-991 official Web-page (files ENG)

QST-logoQST reviews the FT-991 on November, 2015, a overview of the quad-bands  multimode transceiver. – Reviewed by Norm Fusaro, W3IZ Assistant Manager, Field  Services & Radiosport Department. – The ARRL labs including 20/5/2 kHz offset: 103/86/75 dB RMDR (Reciprocal Mixing Dinamic Range) figure on 14MHz band, 3kHz roofing filter & 500Hz DSP BW. (see the reviews on QST by login ARRL membrers)

Display-set-01-2-3

The three rows of rectangular labels at the bottom of the screen are touch-sensitive buttons.

[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).

Complete IC-7851 test report now on-line by Adam, VA7OJ/AB4OJ

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)

VA7OJ-photoThe 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 

Display-Filter-setup

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.

IC-7851_BPF-Roofing-Mixers

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).