Archivi tag: Firmware update

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)

FTDX-1200 & FTDX-3000 MAIN, DSP, TFT Software Update 14 July, 2015

The FTDX-1200 Update Software: MAIN Ver. 01.11 – DSP Ver. 05.54 – TFT Ver. 01.05 and The   FTDX-3000 Update Software MAIN Ver. 01.20  DSP Ver. 05.54 TFT Ver. 01.09  (14 July, 2015) now the water-fall display & spectrum scope memory function is improved. (No mouse operation!) Before downloading this software, please read the “Important Notes” on official Yaesu Update Manuals -(…. in ENG version!).

FTdx-1200-update-14072015
Full screen display of Spectrum Scope – Water Fall

Yaesu con gli aggiornamenti del firmware sia per FTdx-1200 che FTdx-3000 aggiunge nuove funzioni da selezionare sempre con lo [SCOPE Button] pigiandolo in sequenza via, via per 5 selezioni, oppure si può memorizzare dati fino a  25″ degli  eventi che interessano.  – Non sono state incluse scelte e o azioni  di sintonia operando con un mouse., come invece ha fatto la Icom per tre suoi modelli di recente.
Leggere le istruzioni su come procedere agli aggiornamenti e le indicazioni aggiuntive sulle funzioni e manovre e per i nuovi settaggi  dei menù: [SCOPE] key – SCOPE MODE – FFT DISPLY MODE etc! …. purtroppo NON trovate in Italiano!

FTdx-1200-mini-update-14072015
Spectrum Scope/Water Fall displayed at the bottom of the scree

[Note] There are four (4) different Software installations (Yaesu still uses the multiple software systems installations! on the FTdx-3000 & FTdx-1200, not use a unified software environment) – Each one must be followed carefully. – Installing the wrong type software may cause difficulties.

Link to: Yaesu FTdx-3000 Main-page (go… to all Files) ENG
Link to: Yaesu FTdx-1200 Main-page (go… to all Files) ENG

Up-v0111x12k-v0120x3k_14072015

[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)

Dayton Hamvention 2015: Elecraft K3S – IC-7600 Update Soon! FlexRadio Maestro console

Elecraft Introducing the secondgeneration K3S HF/50MHz Transceiver with many new features at Dayton Hamvention 2015 –  ICOM America stating that a new firmware has been announced for his IC-7600 (see below!) – The New FlexRadio Maestro™ SDR Console – Hamvention will be held 15-17 May, 2015 at the Hara Arena Complex in Dayton, Ohio.

K3S_K3_fronts

Improvementes include: KSYN3A a ultra low-noise synthesizer for strong-signal receive performance and transmit signal purity (now option for K3) – 32-bit DSP provides stereo effects, NR,EQ, notch, and built-in PSK31/CW/RTTY decode/encode – USB Port integrates remote control and line-level audio, eliminating the need for a PC sound card and audio cables and more (… link below)

IC-7600_V200_May2015-m

Dayton, VA7OJ’ Adam: IC-7600… Spectrum Scope Waterfall Display – PC Mouse Operation (probably similar to IC-7700 V2,0) – Increased APF volume levels – New CI-V commands RIT, delta -TX, Sub band and external antenna control – Wake-up from standby mode via CI-V (for RS-BA1 remote) Configurable RF onset delay for keying external amplifiers with slow T.R relays! (tnx to Adam for news!)

Icom-dayton-2015

IC-7600 Update coming-soon – ICOM America stating that a new firmware has been announced for the 7600 ! Not on the firmware support site – !! Dayton 2015: Icom has an IC-7600 on display with the new waterfall firmware in operation. !! The new 7600 firmware should be available soon !

P3-panadapter

Eecraft new P3 panadapter now with Transmit Monitoring! –The P3’s bright, full-color LCD has both spectral and waterfall displays, and new optional TX metering and signal envelope monitoring. (… read more on the official web-page)

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Maestro-console-03
 ..
Maestro-consol-04
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At Dayton Hamvention 2015 !! The New FlexRadio Maestro™ an intuitive, plug-and-play control console that directs operation of any FLEX-6000 SDR Signature SeriesTtransceiver without need of a traditional PC! …..

  • Interfaces with all FLEX-6000 Signature Series SDRs
  • Real time spectrum display and waterfall
  • Up to 2 simultaneous band displays
  • WiFi and LAN connectivity
  • Slice (VFO) A/B high resolution controls
  • Independent A/B Pass Band Tuning, AGC-T, and audio controls
  • Quick touch for critical tuning operations
  • Easy access to secondary on-screen menus
  • 10-point capacitive touch screen control
[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-9100 a new Firmware Version E3 is Available -Icom Update 2015/01/27

Icom IC-9100 a new firmware Version E3 is available. – Icom Inc. Support web-site update 2015/01/27 with only one Improvement: The firmware update modifies the IC-9100’s transmitted DTCS (Digital Tone Code Squelch) modulation waveform so undesired sound is not heard at the receiver.

blockdiagram-IC-9100
Icom IC-9100 Block Diagram & Image rejection mixer

The DTCS stands for Digital Tone Coded Squelch and is a method of controlling the squelch of a radio by sending a digital code over the audio signal. – Icom has already solved another problem in the DTCS and tone squelch decoding when receiving in the 9600bps mode with the Ver. E2 firmware of 01/08/2013.

Link to: Download the firmware Ver. E3 by Icom Inc. Support

hamfair_Ic-9100

[Note]: When using this download service, the implementation, use and/or results of use are the sole responsibility of the person making the download.

[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)

ID-5100E D-STAR V/U Update (Release E2) & CS-5100 the Cloning S. Update (V. 1.10)

ID-5100A or 5100E & CS-5100 – Icom Inc. has published a firmware update for the ID-5100E (Release E2) and an update for the CS-5100 cloning software (Rev. 1.10) on  global website  on 2014/10/30 – !! Before downloading, please thoroughly read (link) “Icom Firmware update instructions (here)” to know what the update requires. (leggere prima le istruzioni in ENG per l’aggiornamento dal link)

implements-releaseE2-
ID-5100 Release E2 additions and changes (source: from the Icom update information)

The following firmware has been updated: CPU M to Version 1.10 – CPU C to Version 1.10 – DSP to Version 1.10

Android-app-2
App RS-MS1A free download Icom & UT-133 Unit option necessary.

Kevin Sanders writes: I installed the new Icom ID-5100 with the optional UT-133 Bluetooth board. This allows me to connect my Android phone or tablet to the radio wirelessly and use Icom’s RS-MS1A Android app. The app’s most notable functions are being able to send pictures and text messages over D-STAR – Link to: Read more by kdsandres

sendpicture-app
Android app RS-MS1A & Android device for sending photos & messages

ID-5100 Update Release E2 adds the DV Fast Data mode, uses the data and the audio frames to send data approximately 3.5 times faster than the normal speed (conventional models) – [Note] So, no audio can be sent. Optional cables and third-party data communication software are necessary. (read more to Icon Inc. Information)

Link to: Icom ID-5100 firmware updates official web-page
Link to: Icom RS-MS1A  by Google play – Update V.1.10

D-STAR-schema

[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)

FTDX-3000 & FTDX-1200 DSP’ Ver. 05-47 Update 04 Oct., 2014 – New FT-991 News

FTDX-3000 Update DSP Ver. 05.47 and FTDX-1200 Update DSP Ver. 05.47 (04 October 2014) now The CW keying band width spectrum is improved. – Before downloading this software, please read the “Important Notes” on official Yaesu Update Manuals.FT-991 Qud-band al mode… news below!

FTdx-1200_3000_displaydiff

[Note] There are four (4) different Software installations (Yaesu still uses the multiple software systems installations! on the FTdx-3000 & FTdx-1200, not use a unified software environment) – Each one must be followed carefully. – Installing the wrong type software may cause difficulties.

Link to: Yaesu FTdx-3000 Main-page (go… to all Files) ENG
Link to: Yaesu FTdx-1200 Main-page (go… to all Files) ENG

YAESU New FT-991 italiano un ricetrasmettitore per le bande HF/50/144/430MHz, opera nei modi SSB, CW, AM, FM, Packet e in Digitale C4FM (FDMA) – [09.10.2014]: This radio has NOT been approved by the FCC, ….price coming-soon!

FT-991-front-G+092014

FT-991 caratteristiche generali in via preliminare:
Potenza output 100Watt – (50Watt in 144 e 430MHz)
Display TFT a colori da 3,5”, Touch panel
Spectrum Scope ad alta velocità con ASC (Automatic Spectrum-scope Control)
Roofing filter da 3KHz e 15 KHz
TCX0 ad alta stabilità ± 0,5 ppm, DDS  oscillatore locale PLL
IF DSP a 32 bit -Regolazione IF WIDTH e IF SHIFT CONTOUR, DNR, IF notch e APF ( audio peak filter in CW)
Accordatore d’antenna 160-6m con accordo rapido.

[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)

FTDX-1200 & FTDX-3000 Now Adj. RF Power SSB With CAR Knob – Analog or SDR RTX?

FTDX-1200 Update Ver. 01.09 and FTDX-3000 Update Ver. 01.19  (08/07/2014) now adjusts the TX RF Power output for SSB & CW modes with the [PROC/CAR] knob on front panel.

After loaded new firmware, the Menu item now gives “177 TX GNRL” option to selects: TX PWR or PROC CONTROL. (Default setting: TX PWR) – New firmware includes additional improvements of functions and optimization.

FTdx-1200-3000-adj

[!] Read more on the official Yaesu USA Change Information.
[!]In Italia invece ad oggi non ho rintracciato le necessarie istruzioni e le integrazioni al Manuale  scritte in italiano !
[!] But the Yaesu updating procedure could be is more complex ….compared to other OEM’s!

Link to: Web of YAESU ©USA – Home Page (ENG)

italianoAggiornamenti Yaesu – Nuove versioni del firmware per FTDX-1200 update MAIN V.01.09 e per FTDX-3000 update MAIN V.01.19 sono sul Sito-web di  Yaesu USA –
Dopo aver caricato i nuovi software, il passo del menù “177” prevede ora l’opzione per il controllo continuo della potenza TX RF output anche  in SSB. Oppure del livello del Processore, con l’uso diretto della manopola [PROC/CAR] così come avveniva prima solo per il modo modo CW.  Le altre istruzioni in modo diverso dalla SSB rimangono invariate. Yaesu dichiara che, nei nuovi firmware, sono inclusi altri miglioramenti di funzionamento e altre ottimizzazione.

Yaesu-Up-0109-0119
But the Yaesu updating procedure could be is more complex compared to other OEM’s!

Manufacturers such as designing in 2014 for us amateurs? -New SDR Direct Sampling Radio with latest digital technoIogy will advance very rapidly! Are the Manufacturers Japanese ready to tackle a software project of this magnitude?!
It makes logical sense that Icom’s, Yaesu’s next product should be a stand-alone SDR. – The superheterodyne with IF-DSP architecture has reached a point of maturity beyond which little, if any improvement is possible! – 
(..as recently has written my friend Adam, VA7OJ)

Multiconv-and-Sdr
Multi-conversion or Direct Sampling SDR (come si differenziano qui in sintesi visiva)

Receiver Architectures type (see picture):
1
) Multi-Conversion a.k.a. “superheterodyne”: most every Kenwood, Icom, Ten-Tec, Elecraft, Yaesu amd Hilberling.
2) SDR Direct Sampling a.k.a “wideband” with ADC (Analog to Digital Converter), FPGA (Field Programmable Gate Array and Massive DSP Power (built-in): FLEX-6000 Series – HPSDR – ANAN – Perseus – Elad FDM-DUO and now AOR Ltd Japanese manufacturer (for now…!?)- More…… We are the leader in SDR 

FTdx1200-3000-block
Yaesu FTdx-1200 Up-conversion & FTdx-3000 Dow-conversion superhet block diagram

FTDX-1200 – Triple-conversion Superheterodyne – New 1st Mixer and new IF 40.455MHz / 455kHz / 30kHz (24 AM-FM) Plus New Color display & new menu managements
FT-950 – Old Triple-conversion Superheterodyne – IF 69.450MHz / 450MHz / 30kHz (24 AM-FM) (production end)

FTdx-1200_FT-950-open1

 FTdx-1200_FT-950-open2

 [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-7700 Firmware Ver. 2.0 has released 03/26/2014 & Remote Software RS.BA1 Ver.1.60 is on!

IC-7700 Upgrade Model Ver.2.00 is on! – The New Firmware Version 2.00 for the Icom IC-7700 has now benn released 03/26/2014 – Thanks Icom! – Il nuovo Firmware Ver. 2.00 per IC- 7700 è stato  rilasciato da Icom Inc. il 26/03/2014 ! –

7700-Version-2-0

The new RS-BA1 Ver.1.60 is on – For improvements & information, please read the “IC-7700 Information for Firmware version 2.00” (Link below).

IC-7700-upgrade-display

 IC-7700 Ver.2.ØØ major improvements:
– Waterfall screens, mouse operation, and other functions on bandscope have added.
– An audio scope function has been added.
– The USB connector now also accepts a USB mouse for operation.
– A new feature, the audio adjustment for APF audio peak filter for CW
– The Voice Recording function recording time has been increased.
– Transmission recording capability has been added.
– Remotely control the transceiver without needing a Base (server) PC. (Remote Control Software RS-BA1 Ver.1.60 or later is required).
– Some CI-V commands are added.
– Frequency band expansion (On some transceiver versions).
– A new feature, adjustment of the transmission’s timing is added.

Link to: Icom IC-7700 Firmware Updates /Download  ENG
Link to: IC-7700 Info Firmware Ver. 2.0 (A-6937-2EX) ENG

!! Never turn OFF the transceiver power during the update!

[Note] Abaut the [USB] connector: – KEEP the Transceiver power OFF when connecting or disconnecting a USB keyboard, mouse or hub – DO NOT connect the following devices: – Two or more the same kind of USB devices.- (Example: two USB hubs or two USB mouses) –  Larger than 32 GB USB flash drives –  Bluetooth® keyboard or mouse. – USB HDD – Multimedia adapter .

IC-7700_firmware-ver20

Link to: IC-7700 アマチュア無線機器 – Ver 2.00の主な変更点

[Note] italiano Circa l’uso del connettore [USB]: • Supportata solo: USB flash drive, Tastiera, Mouse o Hub. • Tenere il ricetrasmettitore disattivato quando si collega o si scollega un dispositivo USB tastiera, mouse o hub. • NON collegare i seguenti dispositivi:   – Due o più dispositivi USB dello stesso tipo.   (Esempio: Due hub USB o due mouse USB)   – Adattatore Multimedia   – USB HDD   – Unità Flash USB superiore a 32GB   – Tastiera Bluetooth ® o il mouse simile.

IC-7700 Power amplifier (New PA Unit)
[Note] – The current Rev. #12 / #13 etc. (S/N*) incorporates the new PA-UNIT and LPF modules, and in addition several other modules are also “up-rev.” from the earlier version.
The STAC2942 power amplifier is used in a push-pull design providing reliability in professional communications. This device generates a 200W of output power from HF to 54MHz. (from Icom data)

Label-of-Use-131[1]

[Note*] IC-7700′s Version and Intended Country of Use: S/N #13 (Europe-01) #14 (France-01) #15 Italy-01) #16 (Spain-01) #17 (United Kingdom-01) #012 (America)

[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 by IØgej)!

IC-7700 Upgrade Model on the end March 2014 – New ID-5100-D D-STAR DV & FM

IC-7700_end-march

IC-7700 Upgrade Model on the end of March, 2014, “with enhanced combat force” – (up. 3/20/2014) There are no problems with the development and the new firmware release is going as planned, by the end of this month, March 2014 – Per l’IC-7700 in arrivo l’atteso aggiornamento firmware, confermato per la fine di Marzo 2014  ”una maggiore forza di combattimento” scrive Icom! – IC-7700新機能追加モデル – The New ID-5100-D 144/430MHz dual band D-STAR® and Analog FM

IC-7700-upgrade-display

The IC-7700 upgrade model is being released in end March 2014. – At that time, current IC-7700 radio owners may download the firmware upgrade for free from Icom’s Inc. website.

IC-7700-upgrade-2014

Link to: Icom America and the IC-7700 Upgrade Brochure (pdf ENG)

Display-waterfall-max

Other added the waterfall display function can be seen also a weak signal Undetermined, only band scope was also achieved mouse operation of the band scope.
In addition, by adding audio scope function that enables analysis of audio transmissions, PC-less remote shack support, and enhanced recording capabilities, a variety of functions, the actual fighting force of the IC-7700 has been further enhanced. and more !

Link to: HFオールバンド+50MHz <All Mode>200Wトランシーバー JP
Link to: Icom Japan web-page IC-7700 Press Release 30.01.2014 JP

The Main Features that have been added
Waterfall display function that allows a more complete understanding of the status of the band. – Mouse operation of band scope. – Audio scope function that enables analysis of audio transmissions. – The  control by PC-less remote shack corresponding  &  CI-V. – Enhanced recording function and corresponding recording of about up to 18 hours, also recording the transmitted sound.
The new firmware will be available for download free from the Icom Inc. Website from March 2014.

italianoIcom terrà un one-day “Icom Amateur Radio Festival” presso la propria filiale di Tokyo il 2 febbraio 2014 per presentare anche questo nuovo aggiornamento con IC-7700 da provare. – L’aggiornamento fornirà le stesse funzionalità aggiuntive come già messo a disposizione con il suo ricetrasmettitore, il fratello più grande, l’IC-7800. Il software di aggiornamento potrà essere scaricato gratis dal sito web Icom Inc. alla fine di Marzo 2014.

[Note] – The current Rev. #12/#13 version incorporates the new PA-UNIT and LPF modules, and in addition several other modules are also “up-rev.” from the earlier version.

IC-7700_Quad-fan

The IC-7700 uses a STAC2942 power amplifier in common source push-pull configuration (common source). The power amplifier provides a eliable 200W of output power up to 54MHz. – The STAC2942B is a gold metallized N-channel MOS field-effect RF power transistor. It is intended for use in 50 V DC large signal applications up to 250 MHz (ST datasheet)
The effective quad cooling fan system makes it possible to generate 200W full power output even during full duty cycle operation.

ID-5100-D New D-STAR DV & Analog FM Mode Mobile Transceiver

ID-5100-D

The next generation mobile machine ID-5100/D analog to digital also be evolved. – Icom Co. Japan Press Release for the new 144/430MHz dual band digital/analog mobile transceiver. – Preliminary details:
• Adopt a touch panel that allows for intuitive operation . – Digital communication D-STAR® and DV/DV mode*
• D-Plus reflector usability (can select “reflector” in TO field)
• DV Dual Watch for simultaneously waiting in two DV voice streams (*decodes one only).
• Optional UT-133 Bluetooth unit enables audio accessory connection and Android terminal connection (CI-V via Bluetooth SPP profile).
• Optional VS-3 Bluetooth pendant earpiece microphone has volume adjust buttons, PTT and three programmable buttons. Third party Bluetooth audio accessories may also be compatible (not guaranteed).
• RS-MS1A Android application will be a free to use download. It controls the radio for DR mode operation, exchanging text messages/pictures and showing GPS location over Google Maps! and more…

Link to: デジタルもアナログも進化した次世代モービル機ID-5100/D。
Link to: Icom UK News First details of new ID-5100 Mobile Radio 

[Note] – Detailed specifications: please see the official ICOM Inc. 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 by IØgej)!

IC-7100 HF/50 V/U New Firmware E2 of 2014 – IC-7100 RadCom by G3SJX’ – New AH-740 & AH-760 Antenna – NVIS Theory & Design

IC-7100_firmware-display

IC-7100 All Mode Transceiver (with D-STAR) – New Firmware Release E2 by Icom Inc. website of 14 January, 2014.  The DSP firmware update corrects the IC-7100’s DTMF tone level (…see the all Icom specs and instructions) – IC-7100 Review in February RadCom magazine. – The new AH-740 & AH-760 HF Automatic Antennas – The NVIS Theory & Design by Texas Army Mars and more below!

IC-7100_PA-Unit-LPF IC-7100 Main-body (rear panel) IC-7100_UHF_band

Icom Inc. Support,  Japan of 14.01.2014: Now there is an Firmware update Revision E2  for the IC-7100 Transceiver – See the link below for Icom download page, and also to the Icom Upgrade Instruction (ENG) pdf. – Before upgrade save the transceiver’s data onto an SD card or to your PC using the Icom CS-7100 cloning software.
[Note] A mini-B type USB cable is required. – You must install the USB driver before connecting the USB cable between the IC-7100 and the PC. – Before downloading the driver, please thoroughly read the USB driver installation guide

IC-7100 ファームウェア – バージョン Release J2  公開日 2014/01/14 for Japan

Link to: Icom download the USB driver Ver. 1.20 (..USB 3.0 is now supported)
Link to: Icom IC-7100 Firmware E2 Updates & Instruction Icom.co Support

AH-760 Heavy-duty Moving Coil Antenna – HF 1.6MHz – 29.999MHz – Tuning speed new channel 1.8 S Memory tune 350mS – 200W PEP SSB, 125W PEP CW/DATA – Tested to IP 68 and MIL-STD-810-G – Weight 5.2kg (11.5lb)
AH-740, Relay-Driven Compact Antenna -HF 2.5MHz – 29.999MHz – Tuning speed new channel 2-3 S Memory tune 150mS  – 125W PEP SSB/DATA – Tested to IP 55 and MIL-STD-810-G – Weight 3.5kg (7.7lb)
AH-5NV NVIS option kit (Near Vertical Incidence Skywave) a fiberglass antenna element (4.5m; 14.8ft) –  (see the pictures below enhanced by www.radiocronache.com & click to enlarge)

 AH-740-icomAH-760_AH-740 Icom-AH-740-base

[Note] It is absolutely essential that the antenna is connected to an effective and stabile RF GROUND POINT – A coaxial cable and a control cable are supplied with the tuning antenna. – A ground strap is provided on the base of the tuning antenna to ensure a rliable connection with the vehicle’s metalwork.

NVIS Stands for Near Vertical Incidence Skywave
NVIS-test_ARESThe NVIS radio-wave propagation provides usable signals between groundwave and skywave distances. (between 50 and 650 km; 30 and 400 miles) – The radio waves from the antenna travel upwards into the ionosphere, and then are refracted back down in a circular area. –
A properly designed Near Vertical Incident Skywave (NVIS) antenna will have a directivity pattern that will maximize transmission and reception at high angles while rejecting low angle, long range noise. – Red more by link below
Link to: The NVIS Antenna Theory and Design by Texas Army Mars (.pdf ENG)

IC-7100 Review by G3SJX’s – Peter Hart seems to like the IC-7100 HF/VHF/UHF Transceiver in his latest review in the current edition of RadCom (Post by Icom Uk Google+)- Watch a great review in February edition of RadCom by Peter Hart. (*) RSGB members content – User login necessary.

Link to: RSGB Radio Society of Graeat Britain Publications – (*)RadCom List

[Note] 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 by IØgej)!