Archivi tag: VHF

Yaesu FT-991 HF/50MHz V/UHF (IF DSP 3000 MIPS / 2250 MFLOPS) Brochure

Yaesu FT-991 HF/50MHz/VHF/UHF Transceiver operating SSB, AM, FM, PSK and C4FM (FDMA – F7W) Digital (if it doesn’t have D-Star or D-STAR DV) – Download the new Broshure EN 5.19MB pdf (link below) – List Price USD 1800.00 Your Price USD 1699,95 (info from Universal Radio – US market update at 01/03/2015).

Yaesu FT-991 RX Range: 30 kHz – 56 MHz, 118 MHz – 164 MHz, 420 MHz – 470 MHz

The 1st IF mixer for HF/50MHz features a quad mixer with four 3SK294 dual-gate MOS-FET devices. – A dedicated VHF/UHF mixer, separate from HF bands, the RF amplifier for the 430MHz band uses the NE3509 (HEMT) transistor.

FT-991 Front End Block Diagram

Triple conversion with 1st IF frequency of 69.450MHz for all bands. – Utilize a 1st quad mixer, along with a dedicated VHF/UHF mixer. – All mode including C4FM (4FSK) Digital, AMS (Automatic Mode Select) function decets the receive signal mode, and Group Monitor functions. – [Note] Data FR Mode ( High-speed Data Communication Mode) is not supported in this 991 model.

FT-991 – Triple conversion 1st IF 69.450MHz and two Roofing filters

FT-991 use a Texas TMS320C6746 DSP chip (!! 3000 MIPS / 2250 MFLOPS) in the 3rd IF 24kHz on HF and in the VHF and UHF bands. – Selectable 3kHz and 15khz roofing filters in the 1st IF at 69.450MHz (post 1st mixer) Triple conversion in SSB/CW/RTTY,  2th IF at 9.000 MHz & 3rd IF at 24kHz.
Yaesu FT-991 approved by FCC USA: ID K6620575X50 .

Final PA: 100W for HF/50MHz Bands and 50W for VHF/UHF Bands

Full Color TFT 3.5″ touch panel Display with (ASC) Spectrum Scope function with Waterfall capability on the FT-991 has only one receiver the audio will be “muted” while the spectrum scope is scanning. [Note] During continuous sweeping, no audio will be heard! ( User manual)

Link to: Yaesu FT-991 Information Brochure (5.19 MB) EN
Link to: Yaesu USA FT-991 web page for official data & info

[Nota] – Specifiche dettagliate: si prega di vedere le fonti ufficiali – Tutte le specifiche sono soggette a modifiche senza preavviso – Tutti i marchi appartengono ai rispettivi holders.- Questa pagina è solo una panoramica non ufficiale, dove nessuno dovrebbe trarre conclusioni – Tutti le immagini e le versioni di cui sopra è solo per illustrazione. (Tnx)

Lexen VV-898 Dual Band VHF/UHF 10W DTMF Mobile Transceiver made in China

Leixen VV-898 Dual Band VHF/UHF 136-174 – 400-470MHz 10W DTMF – Wide/Narrow Band: 25kHz/12.5kHz – Channel step: 5/6.25/10/12.5/25KHz, RX: 136-174MHz / 400-520MHz / 200-260MHz / (rx wFM) 87.5-108MHz – Made in China by QUANZHOU LEIXEN ELECTRONICS CO., LTD, located in Quanzhou, Fujian Province.


Recently released from Leixen in China, the VV-898 Dual Band V/U Mobile Transceiver, it has High/Low TX Power Selectable of 10 Watts or 4 Watts and it has some nice features, least of all its tiny size (120x90x40mm) and very low price about €.90 via eBay vendors. – ! A programming cable (option) is recommended to buy together.

LX VV-898 the official data & FCC / CE / RoHS compliances by

Come si legge nell’immagine qui sopra, il produttore riporta i dati e i marchi di conformità previsti per  i vari mercati, comunque tali “compliances” sembrano non sempre riportate nelle etichette ID degli apparati giunti via eBay.


The insides of the radio are remarkably unremarkable – Inside two all the surface mount parts sandwiched in between the heatsink.


VV-898 on the left of the LCD display are CHA+ and CHA- buttons which step the frequency Up or Down in VFO mode. They also step through memory channels when in MEMORY mode. Under the LCD display are three soft buttons marked P1, P2 and P3 as well as the power button and You tend to forget what function they are set to do.
On the right side of the display are the VOL+ and VOL- for increasing or decreasing the audio. When in MENU mode they also allow for stepping through menu items as does the CHA+ and CHA- buttons. The Menu settings are quite straightforward. – [Note] For more info & data please read the User Manual ENG version.

[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 User Evalutation & Test Report. IC-7100 – IC-7000 Feature Comparison by VA7OJ, Adam – Picture, Video & more.


IC-7100 User Evalutation and Full Test Report plus IC-7100/IC-7000 Feature Comparison by VA7OJ, Adam. (! see link +below!) – See the Video demo by GØTAN Engineering staf at ML&S Ltd UK (link +below) – I think that hams using D-STAR will find it a nice addition to their base or mobile setups for DV (digital-voice & data) mode on the 28MHz, 50MHz and VHF UHF bands. (!… danger mobile radio: keeping your eyes on the road!) – See the pictures, video and more below.


The IC-7100 display contrast ratio is also quite nice. I wish it had a color screen as some others have noted. I don’t think much is missed by not having a color screen, as there’s no information displayed that twould benefit from color. The display resistive touch screen is easy operation!


IC-7100 User Evalutatio & Full Test Report by VA7OJ, Adam (!a report of 48 pages)

This Report describes the evaluation of IC-7100 (S/N 02001352) from a user perspective. – Appendix 1) is a comparison of IC-7100 and IC-7000 features in tabular form. – Appendix 2) presents results of an RF lab test suite performed on the radio. Adam also writes: “I was able to spend a few days with the IC-7100 in my ham-shack, and thus had the opportunity to exercise the radio’s principal features and evaluate its on-air behavior”. – (thanks to Adam).


italianoIl Report di ben 48 pagine in pdf, descrive ampie valutazioni come utente dell’IC-7100 (S/N 02001352 US version) – Nell’Appendice 1) vengono comparate, in forma di tabulato,  le caratteristiche principali del IC-7100 e del precedente IC-7000 – Nell’Appendice 2) sono presentati ampi risultati delle misure e dei vari test nel laboratorio RF di Adam sul nuovo transceiver Icom. – Adam scrive anche: “Sono riuscito a trascorrere alcuni giorni con questo IC-7100 nella mia “baracca” di radioamatore, quindi ho avuto la possibilità di provare le caratteristiche principali della radio e valutarne il comportamento On-air” (Grazie ad Adam per l’interessante recensione).

pdf_logoLink to: IC-7100 User Review & Test Report & Comparison by VA7OJ (ENG)

The DR key accesses a D-STAR repeater setup menu, facilitating D-Star service configuration. The DR mode is the “enhanced” user interface for VHF/UHF D-STAR operation. For HF D-STAR, or for those more accustomed to the basic D-STAR operation, simply selecting DV will give access to the D-STAR digital mode.

Video-demo by GØTAN  senior  Technical Support & Engineering staff at ML&S Ltd
Filmed at the ML&S Store in UK. – Video produced and edited by Henry Lynch.

[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)!

IC-7100 Video in use 07/14/2013 – Advanced Instructions – RS-BA1 V.1.40 & RC-28 V.1.01 – ID-51A/E MARS CAP


IC-7100 HF/VHF/UHF Multi Mode & D-STAR DV the new Advanced Instructions pdf 379 pages !! Video IC-7100 in Use CW – LSB – WFM – RTTY (Sunday 07/14/2013) – Designed to the 70MHz band in European versions – Download the new ID-51A/E & IC-7100 brochures (EN) – ID-51 MARS-CAP Modification – Read the QST Review ID-31A, see link below –

IC-7100_instructionsICOM IC-7100 Advanced Instructions Manual a new pdf of 379 page ( Icom America July 2013). These Advanced Instructions describe the details of the IC-7100 features.
This PDF formatted manual provides you with convenient functions, as follows. …. Shows a term description When the mouse cursor is moved over a term which is highlighted in yellow, the description of the term is displayed.
The screen shots at the right column,correspond to the perating instructions and procedures shows both setting and operating example. The location of the keys used in the described steps in the left column are illustrated.. etc.

Link to: Downloada the IC-7100 Advanced Instructions pdf 19.3MB (ENG)

L’Icom IC-7100 finalmente è stato approvato dalla  FCC ID AFJ339300 25.6.2013

IC-7100 List Price $1999.00 Your Price: $1665.95 USD – (Universal Radio Inc.)
IC-7100 #03 List Price €1477,16 (inc. 21% IVA IT) – (Marcucci Spa Importer)

IC 7100 in Use CW – LSB – WFM – RTTY – Sunday Morning 07/14/2013

IC-7100 the size is just about the same with IC-7000 Series and IC-706 & IC-706MKII, but it has a slanted header and can not be mounted on the main body. Touch Screen and user friendly mode and many menu could be easily controlled via Microphone, including changing mode and band selection.

IC-706MK2G IC-7100_Box-rearpanel IC-7200_manpack

At Dayton Hamvention 2013, ICOM the booth rep says there are now 27,000 D-STAR users with over 1,000 repeaters — and they’re dropping the price on those repeaters.

Icom Inc. has updates RS-BA1 Ver. 1.40 &  RC-28 USB encoder Ver. 1.01

Major improvements of the function RS-BA1 V.1.40 (!! must be insert code from CD)
1. IC-7100 is now supported.
2. Improved for stable operation with RC-28 after PC comes out of the sleep mode.

Major improvements of the function RC-28 V.1.01
1. Improved for stable operation after PC comes out of the sleep mode.

Link  to: Icom support download Software & link to Firmware


ID-51A/E 2m + 70cm Dual Band Portable – 5/2.5/1.0/0.5/0.1 Watts Output Power – RX: 88-174, 430-479MHz + AM Broadcast – Repeater Directory /Near Repeater) – Built-in GPS Receiver – Micro SD card slot for recording – IPX7 Submersible and more.. Download the new Icom Brochure EN PDF link below

ID-31_ID-51 ID-51_builtin-GPS

Der ID-51E verfügt über ein kompaktes 58 × 105,4 × 26,4 mm großes Gehäuse und wiegt mit Akku und Antenne nur etwa 255g –  Der integrierte GPS-Empfänger sorgt für schnelle Start-up-Zeit und genaue Position – Dowload Prospekt pdf

Link to: Download the new Icom ID-51 Brochure EN 13GS0020 PDF
Link to: Bitte entnehmen Sie diese Angaben dem ID-51E Prospekt

Link to: Read the QST Review of the ID-31A here! (Icom America Inc.)

Universal Radio (US) ID-51A  List Price: $756.00 Your Price: $579.00
Difona Communication (DE) ID-51E Special Price: €495,00 incl. 19% VAT

ID-51 Official MARS CAP Expanded TX & RX Mod by Icom America Inc. – MARS (Military Auxiliary Radio System) has a long history of providing worldwide auxiliary emergency communications during times of need
RX frequency expansion – (Click the picture to enlarge)

VHF: Expanded range: 137.000-174.000MHz.
UHF: Expanded range: 380.000-479.000MHz.
B BAND – (AM & FM only)
VHF: Expanded range: 108.000-136.995MHz. (AM), 137.000-174.000MHz. (FM)
UHF: Expanded range: 380.000-479.000MHz. (FM)
Remove D9 on Logic board. – [Note] How to open up the TX range on your Icom ID-51 this mod will provide transmit from 137-174 Mhz & 400-479 Mhz: See the video by K1LA link

IC-7100 at Dayton 2013 – Icom Inc. have released a new Brochure Pdf (EN), and the MSRP Price in Japan. The Importer Marcucci Spa  released the List price in Italia.  See more news, links, video and pictures below.


IC-7100_Bande-setting IC-7100_Mode-setting IC-7100_Multimode-meter

D-STAR is NOT proprietary to ICOM, D-STAR is an AMBE Codec owned by Digital Voice Systems. Icom is the only manufacturer putting D-STAR in their currently available Icom rigs. – (!! Click to all pictures to enlarge)

Suggested Retail Price (Japan) ¥ 165,900 (base price ¥ 158,000 no taxes)
Marcucci Spa (Italia) – IC-7100 #03 Prezzo listino € 1.534,00 (+ IVA 20% !!)


TMS3206745BPTPA3_DSPTMS320C6745BPTPA3 Device 3000MIPS (Million Instructions per Second) Clock 375MHz – a high-performance 32-bit floating point IF DSP delivers rich digital signal processing features, including digital IF filter, digital twin PBT, noise reduction, CW auto tune, etc.
Those digital features work on all bands from HF to V/UHF bands. The DSP digital signal processing is incorporated into the AGC loop. Built-in SD Card Slot for Voice & Log Storage

The optional RS-BA1 software allows you to operate the IC-7100 from a remote PC over the Internet or local home network. – (IP Remote through Home LAN) – (IP Remote over Internet) – also available the RC-28 Remote encoder.

Link to: Download the Icom IC-7100 new EU Brochure V.13GS0170 PDF  (EN)
Link to: Download the Icom IC-7100 new US Brochure V.13GS0160 PDF (EN)

[IC-7100] タッチパネル&スラント型コントローラーが、今までにない直観的で軽快なマルチバンド運用を実現 – HF+50MHz+144MHz+430MHz〈SSB・CW・RTTY・AM・FM・DV〉100W トランシーバー –

Link to: Download the Icom IC-7100 (JP) new  Brochure 2013-1-GSG661 (JP)

Touch Screen: The 48.6×75.9 mm in large “resistive” touch screen display can be operated even while wearing gloves.


italianoIC-7100 il nuovo HF/50/70/144/430MHz, Multi Modo & D-STAR DV compreso. Ha un nuovo sistema di comando IC-7100 Base operationintuitivo e rapido con “Touch Screen” resistivo. Si possono eseguire i vari settaggi operativi direttamente toccando lo schermo LCD a matrice di punti! Il Transceiver dispone di una Slot per inserire una memorie SD-card (opzionale) per memorizzare e gestire Dati, il Log e le funzioni GPS (anche il GPS è opzionale esterno) i dati dei Ripetitori D-STAR, etc.  (come già nel ID-51E/A). – Molto interesse alla Hamvention di Dayton 2013 – Icom ha annuncito la disponibilità a fine Giugno pv.

Purtroppo nessun ATU è stato integrato all’interno. Un accordatore automatico opzionale (come ad esempio l’AH-4 oppure l’AT-180) è disponibile per l’acquisto (!), per eventuali scopi di ottimizzazione con il sistema di antenna. – (Cliccare sulle varie immagini per ingrandirle)

Prezzo consigliato IC-7100 (!! in Giappone) ¥ 165,900 (prezzo base 158.000 ¥)

Marcucci Spa (IT) IC-7100 #03 listino € 1220,80 (+ IVA 22%) (upd. 01/01/2014)

Link to: Scheda in Italiano IC-7100 #03 di Marcucci Spa Icom importer Italia 

Anche questo apparato IC-7100 può essere utilizzato in remoto via porta USB con l’utilizzo del Software RS-BA1 della stessa Icom, con o senza RC-28 Remote encoder, sia via rete LAN o via Internet, naturalmente tramite l’impiego di Computer sia in locale che nel sito remoto. [Nota] con solo RS-BA1, allo stato, non si accende o spegne il Transceiver!

The 2013 Dayton Hamvention has come and gone. In this, video for Ham Nation, I show some of what we saw at the worlds’ largest gathering of amateur radio operators….. italianoLa Hamvention di Dayton del 2013 è venuta ed è già passata !! poi Julian dice: questo mio video per Ham Nation, vi mostra alcune delle cose che abbiamo visto al più grande raduno di Radioamatori del mondo! – (tks’ Julian & grazie by IØGej) – 22 maggio 2013 by jyunte’s channel.

[Note] – Detailed specifications: please see the official ICOM  sources – All specifications are subject to change without notice – All trademarks belong to their respective holders.


IC-9100 Up. Firmware V.E1 – QST review April 2012 and the “NPR rx Testing” by VA7OJ

IC-9100 update the Firmware Version V.E1 of April, 2012 – Checking Version on your rtx – The NPR Testing of many HF Receivers by VA7OJ, Adam (latest NPR updated in March, 2013) see link below –  QST reviews IC-9100 on April, 2012 by WW3DE, see the summary key 14MHz below – RS-BA1® remote control system … really cool stuff and Linck, Video and more.

IC-9100 Checking the Version installed – (idem for the IC-7410)

IC-9100_checking-version1) – Press and hold [F4] and [F5] while turning [ON] the IC-9100 – (idem for the IC-7410)
2) – Do NOT release [F4] and [F5] until you have READ the Version results (3)
3) – Results will appear at the bottom of the display

Results for latest V.E1 – F: 3.01-000 = Front (currently no updates) – M: 3.42-E00 = Main (currently no updates) – DM: 3.03 <00> = DSP Main (Previous version should read 3.02) – DS: 3.04 <00> = DSP Sub (Previous version should read 3.03) – (!! Read the Icom information)

[Note] for the IC-7410 HF/50MHz  is NOT granted any firmware, for now

The IC-9100 Firmware V.E1 has just been posted 13/3/2012. – This upgrade is applied from a PC via the rear-panel [USB B] port. – The IC-9100’s firmware can be updated if desired. By updating the firmware, new function(s) can be added and performance can be improved. – This capability ends months of speculation: “Is it or isn’t it?”  – – See the Utility Link, the QST Review, the latest NPR rx Testing (3/2013) by VA7OJ  and RS-BA1 remote control … below !

IC-9100 la Versione V.E1 del Firmware è disponibile dal 13/03/2012.

Con questo terminano le incertezze e le voci varie, sì l’IC-9100 ha il suo Firmware aggiornabile!
Come verificare la Versione del Firmware nell’IC-9100 e IC-7410: vedere comandi riportati più sopra; –  I dati identificativi dell’ultima Versione E1 rilascita da ICOM Inc. solo per l’IC-9100,  ove già installata a bordo oppure  dopo aver fatto l’aggiornamento, apparirano sulla parte bassa del Display con una serie di valori (vedere più sopra) – [Nota] Per l’IC-7410 non risultano ancora aggiornamenti ad oggi – (NB: Informarsi tramite tutte le news ufficiali di Icom!)

Il firmware del IC-9100 può essere aggiornato, se uno lo desidera, tramite un PC e via porta [USB-B] sul pannello posteriore. Con l’aggiornamento del firmware, naturalmente, possono essere aggiunte nuove funzioni e migliorate le prestazioni via, via da parte del costruttore. –
[Note]: A USB cable type A-B  is required. – Please read Icom “Firmware update instructions” PDF

Link to: Icom Co. Jp Firmware V.E1 Official download page
Link to: Icom Co. Jp Firmware Update Manual Istructions

Noise Power Ratio (NPR) Testing of HF Receivers -© by Adam, VA7OJ/AB4OJ
Using notched noise to evaluate dynamic receiver performance

Noise Power Ratio (NPR) Testing of HF Receivers – Using notched noise to evaluate dynamic receiver performance – (…. To put the impact of the NPR test into perspective, a -9 dBm Ptot level at 5.6 MHz BRF is equivalent to 1200 simultaneous SSB signals at -43 dBm each, i.e. S9 + 30 dB!) etc. etc…. by Adam Farson, VA7OJ/AB4OJ- (!! updated in March, 2013see the link below)

Con il Test NPR Adam, dimostra che il generatore di rumore bianco immette un segnale a banda larga che carica tutti gli stati del ricevitore, il Front-end, i Filtri e l’eventuale Preselettore, simulando la risposta alla ricezione di multi-segnali del DUT (come in realtà succede collegandovi un’antenna). – Il rumore bianco viene rimosso alla frequenza sintonizzata del ricevitore da un adatto filtro notch, inserito in serie. – A causa della distorsione dei circuiti del ricevitore (DUT imput), questa tacca (notch) tende a riempirsi con prodotti di intermodulazione, i cui effetti verranno oppurtunamente misurati in uscita (DUT output).

Link to: Download the NPR test in PDF by VA7OJ Adam (pdf ENG)

QST reviews the  IC-9100 on April, 2012 – An overview of the ICOM IC-9100 MF/HF/VHF/UHF Transceiver on the QST magazine by Rick, WW3DE  NCJ Managing Editor (ARRL).

Da: “Key Summary” – (Intercept values ..determined using -97 dBm reference)
Qui vengono riportati solo i numeri a 14 MHz, Pre OFF – RTX  IC-7410 / IC-9100

  • …………………………………..Icom IC-7410……………..Icom IC-9100
  • …………………………………QST October 2011.………….. QST April 2012
  • Spacing 20 kHz blocking gain compression….144 dB…………….…….142 dB
  • Spacing    2 kHz blocking gain compression….111 dB………….……….111 dB
  • Spacing 20 kHz 3rd-order dynamic range……106 dB…………….…….108 dB
  • Spacing    2 kHz 3rd-order dynamic range….….88 dB…………….………87 dB
  • Spacing 20 kHz 3rd-order intercept……………+29 dBm……………….+29 dBm
  • Spacing    2 kHz 3rd-order intercept……………+  5 dBm…………….….+  2 dBm

See the April, 2012 issue of QST magazine for the complete review and ARRL Lab test results.
[Note]: Area Members Only – to log-in; –
Link to: ARRL – American Radio Relay League for Amateur Radio Home-page

QST pag. 55 [Large Box] RMRD, written by Bob Allison, WB1GCM
– From this review forward, we will include RMDR in the Key Measurements Summary.
Reciprocal Mixing Testing: What Is It?
You may notice two new color bars in the “Key Measurements Summary” at the top of this review. These are for Reciprocal Mixing Dynamic Range (RMDR), with measurements at 20 and 2 kHz spacing. …….omissis …….. Reciprocal mixing is noise generated in a superheterodyne receiver when noise from the local oscillator (LO) mixes with strong, adjacent signals.

RS-BA1® Remote control system (QST… Now for the Really Cool Stuff )

An RS-BA1® remote control system consists of at least one PC, which is used as a Base station (Server) and at least one PC, which is used as a Remote station (Client). Both PCs have to be connected with a network and VAC. The Icom USB driver must be installed.
Link to: Watch the Video RS-BA1 setting (IC-7410) by GoospeedGoo

QST, verso la fine, tratta anche il Software RS-BA1® opzionale della ICOM, che consente di operare l’IC-9100 in remoto tramite Internet o una rete locale LAN. (Porta USB ad  un PC locale (Server),  un’altro PC remoto (Client). Uso di Porte audio virtuali (VAC), oltre ad uno specifico USB Driver da installare prima di collegare l’apparato al PC)
Per caricare il software, dovrete inserire l’ID del prodotto e la chiave di licenza dall’etichetta del CD acquistato. – Icom dopo la prima versione ha rilasciato un aggiornamento: Ver. 1.20 – 01/04/2011

Link to: Manuale PDF dal sito web di VA7OJ, Adam,
Link to: ICOM America  RS-BA1® Guida rapida di riferimento on-line
Link to: Icom USB Driver(Ver.1.10) –  Driver Utility and manuals.

[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.


FTdx-3000 Menu very easy – VFO B/A now A/B! – FCC ID ok – FT1D and FTM-400D

FTdx-3000 Settings MENU now scrolling on display and set values! an innovative approach (now… like Icom inc.) – FTDX3000 approved by F.C.C.  ID K6620461X50 – New FT-1D V/U HT FCC ID K6620445X20 and FTM-400D V/U Mobile for digital  C4FM FDMA mode. – See the update pictures of a built-in 4.3-in TFT Display and other news and Link below.

List Price: $3500.00 Your Price: $2799.95  now 2699.95 (Universal Radio US market )


FTdx-3000 Utilizes a new innovative and easy menu settings system and a new 4.3-inch wide color LCD displays the operating information and the status of the transceiver functions selected. (now… like Icom inc.)

To enter into SET MENU mode, simply press the [MENU] button and turn the [CLAR/VFO-B] knob to scroll Up or Down your desired Menu number displayed on the Main LCD and access to many settings and speeds up the operation.

The layout settings [MENU-1] are very fine and offer a nice array of features for the operator. The directional arrows (keypad) and [SELECT] button help you with quick and intuitive access to settings. (please click the picture to enlarg) –

These systems have been newly developed by Yaesu Musen Co., LTD with new substantial design changes, compared to previous devices under the Vertex Standard Inc. Brand! – I have to commend Yaesu Musen Co. for coming up with such an innovative and easy approach.

In Dayton and Friedrichshafen Expo as you can see the buttons [VFO B/A] are reversed! than usual [VFO A/B] – Now in Tokyo Ham Fair these buttons to select the two VFO have been reported in the usual position: [VFO A/B]

The Main operating frequency is the most important in the radio display, with [VFO-A] frequency located just above the Main dial. The [VFO-B] frequency can be displayed on the 4.3-inch color LCD display (left). – For the [MODE] change (USB LSB CW  RTTY etc.) you have a single button with sequential selection or via Memory channels!
Link to: Download the FTDX-3000 Preliminary Brochure link a ML&S UK 

FTdx-3000 Receiver is double conversion, with the first IF at 9 MHz and the second DSP IF at 30 kHz for SSB and CW and 24 kHz for AM and FM modes (like FTdx-5000’s) but the 1st mixer is different from the 1st mix used in the 5000′ series (8x3SK294 !) (see the picture)

Independent Frequency display although the FTDX-3000 has only one receiver; the rig uses dual VFOs, essential for split operation. General coverage receive is available from 30 kHz to 56 MHz.

On the rear panel Signal are furnished: Output for an external receiver and the 9 MHz IF output and two connectors for optional u-tune unit … etc. (see picture)

The July, August and September  QST’s Cover II inserts the manufacturer’s specifications: !! 4.3-inch Large color LCD display / DR:106 dB / IP3 +33 dBm  / 14MHz Band CW (500) (IPO ON, Roofing Filter 600Hz, 2 kHzSpacing) –

Link: Video Ham Fair Tokyo 2012 YAESU Booth 【ハムフェア2012 ヤエスブース】

FT-1D 144+430 MHz HT coming-soon. – This device has been approved by the F.C.C. (FCC ID K6620445X20) !

The-FT1DR/E VHF/UHF HT provides both analog and digital communications on both bands with up to 5 watts.
It is possible to switch between analog and digital mode by pressing one button on the radio. – The FT-1D uses the C4FM FDMA for a lower BER (bit error rate) like the professional LMR (Land Mobile Radio) radios. – The FT-1D can obtain a data trasfer speed 9.6 kbps and E-GPS function for Digital ARTS (Auto-Range Trasponding System) and more.
[Note] The Digital C4FM FDMA mode is not compatible with the Digital GSMK D-STAR

Link to: FT-1D Brochure (pag. 1-2) Radioworld

FTM-400D VHF/UHF Mobile (first prototype) AM/FM/NFM/DV (C4FM FDMA, 9.6 Kbps)

Feature (preliminary): Large color touch screen. GPS/APRS functions. Packet 1200/9600bd ready.
Spectrum scope. ARTS. Bluetooth. Twin RX – Micro SD card slot.

[NoteAll marks are property of their respective owners. – Specifications are subject to change without notice!

Pallets RF amplifier 144 MHz, coupled with Wilkinson coaxial cables by I0FTG

How to achieve Pallet RF high power devices for VHF, using the SD2942 MOSFET power devices, reliable and affordable for amateur radio operators who can then assemble one or more Pallets RF power, as well as describes in his interesting article of IØFTG, Pippo. – Thanks Joseph for this courtesy and for the excellent work.   – [IØFTG you can reach at >]

“” Da qualche anno il mercato dello stato solido LD Mos si è “arricchito” con dispositivi da oltre 1kWatt CW. – Il rovescio della medaglia è l’alto costo del dispositivo e la conoscenza delle tecniche d’impiego che risultano poco note alla maggioranza degli improvvisati utilizzatori. – La mia esperienza professionale, maturata nei laboratori R&D delle aziende che progettano e costruiscono TX analogici e digitali per il broadcasting, mi suggerisce che un amplificatore con un solo dispositivo è a rischio durante il servizio, essendo senza ridondanza……..e quando si rompe, oltre al fermo dell’attività, per le tasche di un radioamatore sono dolori!
La mia proposta è quella di utilizzare un dispositivo, di potenza più bassa, immesso nel mercato da oltre cinque anni con buone doti, sia robustezza, sia di costo: il Mosfet di potenza SD2942 o SD2942 in versione custom. Il progetto è nato circa un anno addietro ed è stato eseguito per ottenere un amplificatore da circa 400 Watt, da un solo dispositivo, per la banda dei 6 metri.””
(Please click the images below to enlarge !!)

Qui a fianco il progetto tramite CAD meccanico 3 D per la posizione ottimale dei componenti. – Il progetto prevede un filtro passo basso a bordo che elimina tutte le armoniche in uscita ad oltre -60dB rispetto il picco di potenza d’uscita. Il dispositivo è un “geminato” in altre parole all’interno del “case” sono contenuti due dispositivi con unico “source”.
Questo consente di ottenere un amplificatore push–pull che, se ben bilanciato, riduce drasticamente tutte le armoniche pari in uscita.

L’amplificatore di potenza è stato progettato come un “pallet RF” professionale, in altre parole si compone di tre elementi base; un supporto in alluminio fresato, un circuito stampato d’ingresso e un circuito stampato d’uscita (naturalmente i due stampati sono a doppia faccia). Si evidenzia, che il circuito stampato d’ingresso comprende anche il circuito di bias; il circuito stampato d’uscita comprende anche il filtro passo basso.

Due pallet RF accoppiati consentono di ottenere oltre 750 Watt con un semplice divisore e sommatore due vie (wilkinson); questo è realizzato con semplici cavi coassiali da 75 ohm e relativi resistori da 100 ohm, per lo sbilanciamento in caso di guasto di un pallet RF. Questa sistemistica consente di avere una ridondanza, in caso di guasto di un pallet RF si continua a trasmettere con una riduzione della potenza d’uscita (-6dB rispetto l’uscita totale). Quindi un amplificatore molto concorrenziale rispetto a quello ottenuto con un solo dispositivo di ultima generazione. Pochi giorni addietro ho progettato e realizzato la versione per i 2 metri, la potenza d’uscita risulta di circa 320 Watt all’uscita del filtro passo basso; sono stati utilizzati gli stessi elementi base del 6 metri con piccole modifiche ai due circuiti stampati.

Utilizzando la stessa tecnica del 6 metri, per accoppiare due pallet RF, si ottengono circa 600 Watt in uscita (ridondanti, in caso di guasto, durante un contest). L’immagine a lato indica il test di due pallet RF, per i 2 metri, accoppiati tramite Wilkinson in cavo coassiale: è visibile lo spettro in uscita con la sola fondamentale (la misura reale della potenza è effettuata tramite bolometro)

Un punto di “forza” dei due pallet RF (6 e 2 metri) è il basso prezzo del Mosfet in caso di sostituzione: ho una buona scorta di dispositivi, messi a disposizione di chi acquista il pallet RF, ad un prezzo molto basso ovvero alla portata delle “tasche” di un radioamatore medio.

Altro punto di “forza”: non bisogna equipaggiarsi di un filtro d’uscita, nei pallet RF “della concorrenza” non sono compresi, è considerato un complemento d’acquistare a parte.

L’ultima mia “fatica”, in ordine di tempo, è l’accoppiatore direzionale d’uscita da abbinare alla scheda servizi: in caso di antenna rotta…….. l’amplificatore si blocca! – Come anche indicato sulla foto qui a lato: sopra l’accoppiatore direzionale per un amplificatore da circa 500 Watt, sotto quello da 1kWatt già assemblato con l’uscita del sommatore di Wilkinson per due gruppi di due pallet (out da oltre 1.1 kWatt). – La direzzionalità ottenuta, per la misura della potenza riflessa, è di oltre 30dB: un risultato similare ad un complemento passivo professionale! – Nella foto, sono stati messi accanto agli accoppiatori due toroidi; questi costituiscono il “cuore” per il funzionamento dei due complementi. –

L’amplificatore si completa, sia per un uso in stazione, sia in portatile, tramite un buon alimentatore da tarare a 42 Volt massimi, con una capacità ad erogare 15 Ampere per ogni pallet RF; una coppia di relè coassiali con quello d’uscita dimensionato correttamente; un dissipatore ventilato; una scheda servizi per gestire ritardi e preamplificatore, infine un buon contenitore………
Buon lavoro a chi ama divertirsi anche con il saldatore oltre al microfono! 73, Pippo, IØFTG. [mail:] – – Link to: Web-page > RF-DesCom

Baofeng UV-3R MkII Dual band HT and the VGC co. UV-X4 similar feature – FCC / CE ok!

The Baofeng UV-3R Mark II  Dual-Band HT VHF UHF Dual frequency on display, Dual Watch – They copied the VX-3R ?… very similar indeed – at least on the outside!! – US Market List Price $69.99 / Special save: $59.99 US  – (source: Fleetwood web,  powered by ©

For European customers,1750Hz tone burst is standard. For North Americans, unlike other micro radios, we offer 5k frequency spacing. The dual-band DSP chip also allows you to work U/V –
The UV-3R Mk-II Transceiver has also passed CE, FCC and RoHS certification – !!…now, we buy regular equipment !!

Again the ©VGC Vero Global Communication Co.,LTD has announced another model similar to the UV-3R: the UV-X4 Dual Band Dual Watch Pocket Radio – Change the type of buttons on the front panel and Color body! –  See the ©VGC image (click to enlarge) –  Only the model name, trade name, and FCC ID are different. – The CE Code 0678 (!) is identical

[Note] Change the FCC ID of identification from the Baofeng Co., Ltd UV-3R Mk II (currently approved device) to the new VGC Co., Ltd  UV-4X (electrically identical). – This….  for purpose of marcheting.

Link to: Download the (first) UV-X4 brochure in PDF (from vgc hk)
Link to: The UV-3R Baofeng Yahoo Group support and discussion

[Note]: This Radio Requires a License – !! Use Responsibly:
It is the buyers responsibility to ensure that your Two Way Radio or Amateur Radio is operated under, and controlled, within the laws that govern your respected area – Please consult your local radio/spectrum/government agency prior to any and all use

TH-D72 V/U APRS Launch in December 2010. The News Release and Jp Brochure

TH-D72A and TH-D72E Data Communicator FM Dual Bander -(Click image to enlarge) See the Link below for Download the Brochure in Japanese lang. and the TH-D72 News Release in EN  and Prices Jp and US and more…

Kenwood has announced it is launching 2 new FM dual band transceivers in December 2010. Featuring a high-performance GPS receiver, the TH-D72A and TH-D72E support a easy APRS® operation without requiring a computer and wide range of APRS® (Automatic Packet Reporting System) functions can be used if the TH-D72A/E is connected to a PC with the  supplied USB cable to enable control of the TNC.

TH-D72 144/430MHz FMデュアルバンダー – 高性能GPSユニットを内蔵。 – データ通信システム「APRS®」を標準搭載。- 操作性、視認性を考慮したデザイン。
(Click image to enlarge) Display DF0TK  APRS® operation
TH-D72A/E 144/430-144/440 MHz FM Data Communicator FM

Japan Prices:  Kenwood Suggested retail price: 62,790 yen – (excl. tax: 59,800 yen)
US Prices:  List Price:   $512.00 – Your Price: $499.00 (by Universal Radio)

Main Features:

Built-in high-performance GPS receiver (SiRFstarIII chipset) → Target point functions → GPS logger functions → APRS® firmware equipped as standard easy APRS® operation without requiring a computer → USB (Mini-B) port – can be connected directly to a PC with the supplied USB cable  → Built-in 1200/9600bps TNC compliant with AX.25 protocol → A wide range of APRS® applications with USB/PC → Stand-alone digipeater → Simple node access with EchoLink® memory → Enhanced operating ease and visibility → MIL-STD810 & IP54 weatherproofing → Long operating hours (high-capacity battery included 1,800mAh) → Dual receive on same band (VxV, UxU) → Two Mod. TH-D72E 144/430MHz FM Europe – TH-D72A 144/440MHz Amercica, E/A Early December, 2010.
[Note] APRS® originally developed in 1992 by Bob Bruninga (WB4APR) – SiRFstar III is a registered trademark of CSR plc.

Data summarized – For Further Information, please see the following link
Link to: Kenwood Co.Jp TH-D72 News Release EN – update 10.29.2010
Link to: Download the Brochure TH-D72 in Japanese lang.- PDF (932KB)

The EME Conference 2010 in Dallas US – KP4AO on the air for 432 MHz EME

International EME Conference, 2010 (August 12-14, 2010) takes place in Dallas, Texas – Noise Figure Workshop – EME Demonstration by WA5WCP – Dealer Room featuring a number of dealers, – Tours of historic sites and Ladies program. The EME conference will conclude with the traditional Saturday night banquet! — My friend I0NAA Mario (ARI Honor Rool) will be the EME Conference in Dallas!

Moon-bounce from Arecibo Observatory (KP4AO AOARC), last April 2010. (Source: QST August, 2010)

Joe Taylor, K1JT, and Jim Breakall, WA3FET (left), together with a team from KP4AO, the Arecibo Observatory Radio Club, completed almost 250 contacts via EME using the Arecibo Observatory at the National Astronomical and ionospheric Center in Puerto Rico. (Insert photo by QST August 2010 Cover). –  (Click the image for enlarge)
Equipment Setup for 432 MHz EME: For extra flexibility we used two TS-2000, one for trasmitting and one for receiver, included a GaAsFET pre-amp with noise figure 0.5 dB. We had two power amplifiers, one using a 3CX800 we started with 350 W. – [Note]: Read, please, the entire report on QST, Aug. 2010 written by Joe, K1JT, Angel,WP3R and Jim, WA3FET.

Link to:  The Page’s WSJT, MAP65, WSRP and WSJT8 available for testing (Many thanks Joe, K1JT)

International EME Conference, 2010 takes place in Dallas, Texas

[Nota]: EME Communications (Earth Moon Earth) also known as moon bounce, is a Hamateur Radio communications technique which relies on the propagation of radio waves from an Earth-based transmitter directed via reflection from the surface of the Moon!

W5LUA, VE4MA, WA8RJF and the North Texas Microwave Society officially announce the 14th International EME Conference in Dallas, Texas on the 12th,13th and 14th of August 2010. The conference Hotel is The Westin at the Dallas Fort Worth Airport which is just a short shuttle ride from DFW Airport. We have over 100 pre-registered for the conference. To see if you are fully registered, please go to and check the  “Registered Attendees.

E.M.E. Conference 2008, there were more than 168 EME Operators at the 13th International EME Conference 2008 in Florence, Italy (Click on the left to very impressive big image). Ricordo che a Firenza si è tenuta la 13° Conferenza Mondiale EME nel 2008 organizzata in Italia dal CRT Toscana, a cui parteciparono ben 168 Operatori dalle varie parti del mondo. (Cliccare la piccola immagine qui sopra per vedere la grande foto ricordo 2008!!)

Paul, WA5WCP, will be giving an EME demonstration on 1296 MHz out in the hotel parking lot. On Friday at 1800Z (1PM Local) the moon will be up at 22 degrees elevation. This is a low declination moon which won’t give us very much time towards Europe. System will be a 12 ft dish and several watts. Paul will also be on after about 1900Z on Saturday.

Link to: 2010, Intern Confer EME – General Conferenze schedule
Link to: 2008, Intern Confer EME in Firenze Italy – Report and photo

Leggi tutto l’articolo in italiano qui di seguito….. leggi tutto/full story

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