Archivi tag: Reviews

SunSDR-MB1 A SDR Stand alone – ANAN-100 & 200D Tests Report Updated 2014 by VA7OJ

SunSDR-MB1_sdr-rtx

SunSDR-MB1 HF/6m/VHF Transceiver a new Stand-alone Made in Russia by Expert Electronics LLC – The SDR Transceiver based on DDC/DUC (Direct Conversion technologies) MB1 new Stand-alone SDR…see link – The ANAN-100D SDR & ANAN-200D HF/6m DDC/DUC Transceivers Made in India  by Apache Labs - Download the latest Tests Report & Review Iss. 5 2014  by Adam, VA7OJ/AB4OJ.  See update news and links below!

Expert Electronics SunSDR-MB1 Stand Alone Software Defined Radio (Preliminary 2013) - For last news and update model Ver. 2 MB1  see the link 2014 (20/06/2014 ) below: http://www.radiocronache.com/2014/06/sunsdr-mb1-v-2-sdr-transceiver/

Others Previous Features (by SunSDR Forum 08/06/2013):

SunSDR-MB1_ext-display Flex-6700_Display-2013

Direct Conversion ADC sample rate: 160MHz, ADC resolution: 16 bit SFDR receiver: 78-82 dB – DUC sample rate: 360MHz, DUC resolution: 14 bit High perfomance 24 bit Audio Codec on board – Connect to PC: LAN/WLAN (Ethernet/WiFi 802.11 g/n) – Trasmitter Output power, nominal: 125W (HF), 30W (VHF) – IMD3 DR of transmitter: about 30-40 dB – Very small CW delay: 10ms - Size: 370x160x270mm, Weight: 10 Kg.

SunSDR-MB1_rear

SunSDR-MB1 Rear Panel Inputs/outputs: Two VHF (SO239)- Two HF (SO239)- Wide RF input port direct connect to high speed ADC (SMA) & DUC (SMA) for XVTRX, measurement etc.-

Software: ExpertSDR2 (all updates)  is free. - SunSDR-MB1 is available for order.

ExpertSDR2-software

Program ExpertSDR is developed by the company Expert Electronics to support the SunSDR-transceiver – (Bасилий, Vasily writes: User can push one button (20 sec start time/ 5 sec finish time) and can works in radio air without keyboard and mouse.. etc.) – Link to: Expert Electronics LLC Home-page

ANAN-100D/E SDR  Made in India Tests Report by VA7OJ (Issue 5 Aug. 2014 including ANAN-200D (!! see link below!)

ANAN-100D_fron-rear-09-2013

Apache Labs Specifications: (summarized) ANAN-100D & E All Mode Receiver SDR Direct Down Conversion type -

FPGA_Altera_CycloneIV

Frequency Coverage 10kHz – 55MHz – Dynamic Range 125dBm – Noise Floor (500Hz Bandwidth @ 14.2Mhz) -140 dBm - FPGA type EP4CE115  - On board DSP processing Extensive, including optiona Sof Core processing – Master Clock 122.88MHz  and phase noise @ 10kHz -149dBc.

Apache Labs has announced: Apache Labs and OM Hermann, DL3HVH are pleased to announce a strategic tie up for the development of cuSDR software for the ANAN series transceivers, cuSDR is a state-of-the-art SDR platform and has key advantages such as capability to simultaneously display multiple receivers with Panadapter and waterfall displays!

ANAN-100D_2_TXunit

All Mode Trasmitter SDR Direct Up Conversion type – RF Output 1-100W – Coverange 160-6M – Modulation Digital Low Level – Carrier & Unwanted Sideband Greater than -90dBc – Harmonic 50dB (HF) 60dB (VHF) – 2xRD100HHF1 Mosfet 100W (160-6m).

News by Apache Labs Support: “We are pleased to announce that the ANAN series HF & 6M SDR transceivers including the ANAN-10, ANAN-100D and the ANAN-200D are now CE and RTTE certified as per EU trade directives”.

ANAN-100D & ANAN-200D Tests Report – Iss. 5, August 5, 2014  by Adam, VA7OJ:  Supersedes all previous issue! 

This is a revised test report, presenting results of an RF lab test suite performed on an Apache Labs ANAN-100D direct-sampling/DUC SDR transceiver loaned by Apache Labs. Appendix I presents selected tests conducted on an ANAN- 200D. – As a result, several receiver parameters were re-tested. – The Issue 5 incorporates the results of these re-tests (denoted by “R”).

pdf_logoLink to: The ANAN-100D & 200DTests Report (5) VA7OJ
 Link to: Apache Labs Private Limited (Apache Labs) page

[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.

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

IC-7000_IC-7100

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.

IC-7100_display-menu-3-2-1

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_Qso-recorder

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).

IC-7000_7100-max

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)!

TS-990S New Ver. 1.05 – TS-990 徹底解説集 Base Station Being Built – In-Depth Manual JPN – RadCom Review and NC0B Full Test

TS-990_updated-105_15nov2013

TS-990S firmware  updated to Version 1.05 of 11/15/2013  - The Kenwood TS-900′s Base Station Being Built (new video now in ENG !) - The RadCom Review by G3SJX, Peter & the Sherwood NCØB Full Test Report – TS-990 Pictures and inside view below - !! The In-Depth Manual  for the TS-990  in Japanese JPN  ファームウェア Ver.1.05 - TS-990 徹底解説集  (!! In-Depth Manual_JPN) 18.3MB. PDF ( 2013年11月15日)

The Kenwood TS-990S has been updated to Version 1.05 of 11/15/2013, owners can update the transceiver’s firmware by using a USB flash drive as detailed on the Kenwood Firmware update information web-page – Last updated: November 15, 2013 (see the link below)
I think we should do the firmware because it will upgrade your RTX a lot more than all the specific items mentioned on the Kenwood web-site.

Link to: TS-990S Firmware update info & Updated items & symptoms 

If you agree with the details listed on the Kenwood informations web-page (see “Firmware updating procedure”), click the following link to download the original firmware file: TS-990 V105.zip / 12.8MB – [Note]: The latest version includes all previous updates.

Link to: Download the original Kenwood TS-990 Firmware Ver.1.05.zip (link)

[Note] The firmware update is applicable to the following units. Model: TS-990S Serial numbers: From  S/NO. B32xxxxx through S/NO. B3Bxxxxx approx. - You can check the firmware version of your TS-990S by pressing [M.IN] (!…Memory) + Power ON. – After startup, the Firmware Update screen appears and shows the firmware version.

JVCKenwood news –  Now we have a In-Depth Manual  for the TS-990 ready, but at the moment only in Japanese language (PDF 18.3MB) !!

ファームウェアをVer.1.05にアップデートしました。TS-990 徹底解説集」を追加しました

 TS-990 Firmware Ver.1.05  (!..Japan: ファームウェアVer.1.05 11月15, 2013) 

TS-990S Kenwood Base Station Being Built  (22/ott/2013) – Giving you a rare glimpse behind the scenes at Kenwood’s Communications Division factory at Yamagata, in northern Japan, this video shows our new flagship Amateur Radio transceiver the TS-990S being built.

TS-990 spiegazioni approfondite in JPN (Japan: TS-990 徹底解説集  PDF: 18.3MB)

TS-990_PreSelector TS-990 Main-LO-C-N TS-990_TCXO-stability

Link to: The USB-to-Serial Adapter Cables for Ham Applications by WA8LMF

TS-990S & IC-7800 RTTY Decode – Kenwood 990′s a main receiver with a down-conversion 8.248 MHz 1st IF, the 1st Mixer is a double balanced grounded switch (H-mode mixer type)  and employs a double-conversion system – The sub receiver which incorporates the TS-590S receiver architecture.

TS-990S-rttydecode IC-7800-rttydecode TS-990S_internal-1

Video demo - TS-990S RTTY TEST – Connected to a Dell 30″ TFT Monitor with DVI

TS-990S the Peter Hart, G3SJX Review on RadCom of June 2013

RadCom-review-logoClick on the icon (…side) to find out what RadCom
Magazine had to say about TS-990S. (RadCom …link Kwd-uk)

TS-990S Updated Full Test Report by Rob Sherwood on July, 2013 

CTU-2013_NC0B RMDR_04 RMDR_08

RMDR_05 RMDR_06 RMDR_07

pdf_logoLink to:  TS-990S Updated Full Test Report by Sherwood May/June 2013

[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)!

FTDX-1200 the Complete Test Report by VA7OJ, Adam: MDS, NPR, RMDR, DR3, Image & 1st IF Rej. + Trasmitter Tests

FTdx-1200_Test-Report_va7oj

FTDX-1200 the Complete Test Report by VA7OJ, Adam: MDS, NPR, RMDR, DR3, Image & 1st IF Rej., AGC Impulse response & Complete Trasmitter Tests: Power output, CW keying evelope, Keying sidebands, ALC compression test, Trasmitter 2-tone IMD, Trasmitted composite noise – !! - Great job done by my friend Adam! [Note] 08/16/2013…..!! Take a look at the HRO and Universal: The Sale Price now did drop-in USD 1599.99 !

Small extracted from the larger report 07/25/2013 (© 2013 A. Farson VA7OJ)

FTdx-1200_3000_block-diagram

4.3.  As one would expect of a high 1st IF (“up-conversion”) superhet architecture, image and 1st IF rejection are superb (> 110 dB). These figures are unachievable with an in-band (“down-conversion”) 1st IF design.

pdf_logoLink to: Downloada the FTdx-1200 Test Report by VA7OJ, Adam (pdf)

Test A2: Reciprocal mixing dynamic range (RMDR): In this test, a strong “undesired” signal is injected into the receiver’s RF input at a fixed offset Δf from the operating frequency. (etc. see the complete pdf!)

Test Conditions: SSB mode, 2.4 kHz filter (IF DSP), preamp off (IPO), ATT off, DNR off, NB off, DNF off, Notch off, Contour off. AGC Slow, negative offset. Roofing filter: 3 kHz (R3). RMDR in dB = input power – MDS (both in dBm). The RF input power Pi is increased until the receiver noise floor increases by 3 dB, as measured at the audio output (etc. see the complete pdf!)

Δf  kHz 2 / Pi dBm -38 / RMDR dB 82 — Δf  kHz 5 / Pi dBm -30 / RMDR dB 90

4.1 It will be seen from Tables 2 (RMDR) and 3 (DR3) that at 2 kHz spacing, the measured 82 dB RMDR value values is slightly higher than measured DR3. This indicates that although the measurement is phase-noise limited, there is still a measurable component due to front-end non-linearity.
!! At 5 kHz spacing, RMDR and DR3 are 90 dB and 81 dB respectively, indicating a fairly rapid fall-off in phase noise between 2 and 5 kHz offset. (…… etc. see the complete pdf!)

4.6. As mentioned in the test descriptions above, no trace of ALC overshoot or spikes was observed at any time.  (…… etc. see the complete pdf!)

4.8. Overall, it is felt that the FTDX-1200 is a very good performer and an excellent buy in the mid price range

FTdx-1200_FTdx-3000_11mag2013

SCU-17_USB-Interface-2SCU-17 USB-2 Interface Unit – The FTDX-1200 can be connected to a PC with a USB cable through the use of an optional SCU-17 Interfeace Unit. This unit will support CAT, USB Audio In/Out, TX control (PTT, Key, Shift), and Firmware updates.
External control (CAT) is possible using Serial Port (built-in) or the optional SCU-17 USB Interface Unit

Link to: SCU-17 Interface Unit  the Op. Manual ENG/JPN EAK21X700 (.pdf )

Detailed specifications: please see the official Yaesu Musen Co. LTD or Yaesu USA  sources - All specifications are subject to change without notice – All trademarks belong to their respective holders.

Icom RS-BA1 update Ver.1.20 IC-9100 interior views Mod. RX espande range

The IC-9100 Multiband Transceiver supports RS-BA1 Internet remote-control software Icom suite; With the RS-BA1, you can configure a remote control system through the Internet IP, or a LAN  network. • Most functions and modes of your transceiver, including interference rejection functions and IF filter settings, can be controlled • Also, S-meter and SWR can be observed • Rx Voice recording function available and more. –  (Click on the rs-ba1 picture to enlarge)
Icom RS-BA1 remote control software Ver.1.20 update 2011/04/01 (File: ZIP – File size: 21.1 MB) [Note]: It is not possible to execute this updating program if the RS-BA1 is not installed into your PC Remote Control is not free, you buy from retailers. – Now is not yet available in all countries. ML&S UK Ham Store: Price: TBA ! - HRO US Discount Price: TBA ! Marcucci Spa IT Prezzo €88,00 (inc.VAT)!

Link to: Info major points of the Ver.1.20 update by Icom web

IC-9100: Interior views, features summarized, first impression, dual receiver but not same band, limits  EMCOM. High price to base, and many optionals  required for full operation. How to Expand the Receiver range.

Icom V.10GS0190 brochure and it looks like the dual receiver works in all modes simultaneously, but not on the same band • The IC-9100 has 3 independent receiver circuits from the antenna connector to the 2nd IF image rejection mixer • The IC-9100 will receive simultaneously (with mixed modes if desired) on any of the band pairs shown in the “Independent dual receivers” table on the IC-9100 brochure • It severely limits the usefulness for Emergency Communications (EMCOM) by not being able to monitor the same band with both receivers • For that matter, it limits if for DX and contesting, where you are listening in two places of the HF band at the same time. • The architecture of the IC-9100 (only one 1st mixer and LO per receive chain) precludes same-band Dual Watch operation.

The optional UT-121 Unit provides D-STAR DV mode digital voice and low speed data communication. [Note] It doesn’t have the Icom ID-1′s DD “high-speed” data feature!  - Installing the optional UX-9100 box and his IF PCB the IC-9100 fully covers the HF/50, 144, 430/440 and 1.2GHz amateur bands in multiple modes. – RX expansion range (see last picture above): Frequancy coverange (not guaranteed!) 30kHz to 60MHz / 108 to 174 MHz / 420 to 480MHz 7 1240 to 1320MHz – Disassemble the radio, locate diode matrix behind the front panel and remove D1504 and D1505 for full Rx coverage, !! work with great care, risk of damage to the PCB – Assemble the radio and operate the full reset by olding [F-INP-ENT] + [M-CLR] and turn power [ON].
[Note] Before you do anything, please read this.!
The modifications are not verified, so if you try some of the article on your own equipment, it’s on your own risk. Performing modifications of some equipment may be a violation of local laws. If you have any doubts, do not perform the modification.

Link to: Download the  Icom RS-BA1 product brochure ENG
Link to: IC-9100 informations web page by VA7OJ’s Adam

 

TS-590S G3SJX reviews the Kenwood HF/50MHz transceiver RadCom 01/2011

Kenwood TS-590S Peter Hart reviews the latest HF/50MHz transceiver on ©RadCom January 2011 – The RSGB Radio Society of Great Britain Members’ magazine.
The figures measured of RadCom  are excellent, similar to or better then top-end radios costing two to four times as much!

Here follows a short summary by © www.radiocronache.com taken from ©RadCom 01/2011 – (View the 01/2011 ©RadCom Magazine to read the full review by Peter Hart. A large and very interesting technical work, thanks) –
Link t0: RSGB Abaut RadCom and news web-page (-Members’ only)

The TS-590S is a single receiver tuning 30 kHz to 60MHz, although the performances is specified within the amateur bands. – The menu system is very comprehensive with 88 items, it uses scrolling display annotation. – Menu items allow for both fast and slow linear switching separely for HF and 50MHz but there is only one linear control line. - For use with transverters, the display can be set to indicate the trasverter frequency.  Three digits are available for the MHz segment, eg 144 or 432.

Measurements – Peter evaluates separately two path: RX1 down-conversion and RX2 up-conversion.  ————– (Short summary data)
The rejection of IFs and image for the RX1 down-conversion path was typically 75dB to 90dB (1*) – For the RX2 up-conversion path these figures were typically better than 90dB. – He searched carefully for other spurious responses as DDS circuits tend to be prone to this problem. – RX2 was very clean with no responses less than 80dB down. – RX1 was exceptionally clean with no other responses less than 100dB down (2*).
- (1*) FTdx-5000 the 9MHz IF rejection on 10MHz it was only 54dB, and on 7MHz it was 74dB. - (2*) FTdx-5000 the first mixer image was only down by 55dB to 70dB (>RadCom  June, 2010 review)

IP3 Intercept and IMD3 Dinamic figures for bands (1.8 3.5 7 14 21 MHz) that use RX-1 the measurement was made 2.3kHz bandwidth. By measuring in 2.8kHz  bandwidth all bands (1.3 3.5 7 10 14 18 21 24 28 50 MHz) use  RX2  path.
—– RX1 path USB mode (50kHz Spacing)
7MHz Preamp OFF – Bandwidt 2.3kHz: IP3 +31dBm IMD3 105dB
7MHz Pream ON —  Bandwidt 2.3kHz:   IP3 +22dBm IMD3 105dB

—– RX2 path USB mode (50kHz Spacing)
24MHz  Preamp OFF – Bandwidt 2.8kHz: IP3 +18dBm IMD3 98dB
24MHz Pream ON – Bandwidt 2.8kHz:    IP3 +6.5dBm IMD3 96dB

Close-in IP3 and IMD3 figures were made in 500Hz bandwidth with RX1 on 7MHz and RX2 on 10MHz.

- RX1 uses the 500Hz bandwidth roofing filter. – RX2 the 2.7kHz bandwidth filter at the second IF and 15kHz rofing filter at the first IF. - The results for RX1 path are really excellente, achiving 103dB IMD3 at 2kHz spacing and 90dB at 1kHz! – The results for RX2 path show the efect of the wider roofing filters (15kHz+2.7kHz). Then at 2kHz and below the signal enter the second IF filter passaband and the AGC takes effect.
—- RX1 7MHz Preamp OFF CW mode – DSP Bandwidt 500Hz – IF Roofing 500Hz:
2kHz sapcing IP3 +23dBm IMD3 103dB / 10kHz spacing IP3 +30.5dBm IMD3 108dB

—- RX2 10MHz Preamp OFF CW mode – DSP Bandwidt 500Hz – IF Roofing 15kHz and 2nd IF  2.7kHz:
2kHz spacing IP3 IMD3 see text below / 10kHz spacing IP3 +21dBm IMD3 103dB

A somewhat complex AGC system is used, detecting signal level in three places within the DSP signal path. – The close-in strong signal performance in some cases may be limited  by the AGC  when a strong signal falling inside the filter roofing but still outside  of the final channel filter will result in AGC action. – This can be heard as a quietening of the receiver from a very strong signal  just outside of the channel passaband. - The effect is most noticeable with the wider roofing filters and is not an issue with the 500Hz roofing filter in circuit. – [Note] clik the thumbnails to enlarge!

FTdx-5000 Review from RadCom June 10 by G3SJX – Here only some data and a summary

FTdx-5000 measured performance Source: RSGB RadCom  June, 2010 by G3SJX – Table 1*
[*Note]: here, only some of the many performances misured – View the RadCom Magazine to read the full review by Peter Hart) – !! IP3, IMD3, and Blocking figures were outstanding with the appropriate Roofing filters selected. !! The only area for concern is the receiver spurious signal rejection….

Sensitivity SSB 10dBs-n:n 7MHz band: IPO-1 →0.7uV (-110dBm) PREAMP-1 →0.18uV (-122dBm) PREAMP-2 →0.09uV (-127dBm)
Intermodulation (Spacing 15kHz) 2400Hz bandwidth 6kH Roofing USB 7MHz band: IPO-1 →IP3 +37.5dBm IMD 105dB PREAMP-1 →IP3 +26dBm IMD 105dB PREAMP-2 →IP3 +18dBm IMD 103dB
Close-in Intermodulation on 7MHz Band 500Hz bandwidth CW IPO-1:
Spacing2kHz (15kHz Roofing) IP3 -8.5dBm IMD 77dB – (6kHz Roofing) IP3 -4dBm IMD 80dB – (3kHz Roofing) IP3 +33dBm IMD 106dB – (600Hz Roofing) IP3 +37dBm IMD 109dB
Spacing10kHz (15kHz Roofing) IP3 +38dBm IMD 108dB – (6kHz Roofing) IP3 +39dBm IMD 109dB – (3kHz Roofing) IP3 +38dBm IMD 109dB – (600Hz Roofing) IP3 +38dBm IMD 109dB

The 9MHz IF rejection on most bands was greater than 100dB, but on 10MHz it was only 54dB, and on 7MHz it was 74dB. VRF front-end tuning improved these figures by 20dB. The first mixer image was only down by 55dB to 70dB but VRF improved this to better than 75dB.
Spurs on the synthesiser resulted in a number of unwanted receiver responses, notably at approx +/- 425kHz from the received frequency at only 65dB down on the VFO-A rx and at +/- 40kHz down by 85dB. VRF improves these figures but only marginaly on the higher bands.
Third order intercept (IP3), dynamic range (IMD3) and blocking figures were outstanding with the appropriate Roofing filters selected (See the Table-1*). The VFO-B receiver dynamic range is nont quite as good as the VFO-A receiver but is still very respectable.

Link to: The RSGB webpage – RadCom Magazine

La rejezione IF a 9MHz per la maggior parte delle bande risulta superiore a 100dB, ma sulla banda dei 10MHz scende a soli 54dB, e sulla banda dei 7MHz risulta 74dB.- L’uso del VRF tuning del front-end migliora queste figure di circa 20dB. L’immagine del primo mixer risulta attenuata solo da 55 dB a 70 dB, ma con il VRF si ha un miglioramento al valore di 75dB. Le spurie del sintetizzatore produce una serie di risposte indesiderate al di sotto di soli 65dB  rispetto all frequenza  ricevuta,  in particolare a circa +/- 425kHz dal centro della frequenza  sul VFO-A (main rx), ed ancora a +/- 40kHz sono al di sotto di 85dB. L’inserimento del circuito VRF migliora queste cifre, però solo marginalmente sulle bande più alte di frequenza.
L’intercept point di terzo ordine (IP3), la gamma dinamica  IMD3 e la dinamica di blocco hanno valori che variano in base alla banda passante  del Roofing filter selezionato (Vedere Tabella-1*). Il ricevitore del VFO-B (sub rx) ha a sua volta una dinamica non altrettanto buona come il  ricevitore VFO-A (main rx), ma comunque è  molto rispettabile. – !! Emerge dall’articolo di Peter  Hart una questione che lo preoccupa:  la effettiva capacità di rejezione di segnali spuri del  ricevitore A.
[Note]: RSGB Members Only can now download the June, 2010 RadCom Review  in PDF format.

FTdx-5000 Vs IC-7700 – DMU-2000 v5.11 – Yaesu ICAL soon IT – Watch the 1st Video

The Transceiver FTdx-5000 Vs IC-7700 – Sommary.. Features, Dimensions, Weight
Yaesu Italia  ICAL Spa,  coming soon in Italy. >See Info and link (Ical logo) below..
Icom IC-7700:
Dimensions  425 × 149 × 437 mm; Weight  22.5kg;
Output power :  5–200W – AM 5–50W;
PA utilizes two MRF 150 MOSFETs (Vdd = 48V);
Special Price (- Icom Coupon + Gift) $6299,95

Yaesu FTdx 5000 Series:
Dimensions and Weight FTDX-5000 462 x 135 x 389 mm,  21 Kg
SM-5000  462 x   45 x 181 mm,  3 Kg; Output power: 10-200W – AM 5-50W (75W Cl. A)
PA utilizes two FETs VRF 150 (Vdd = 40V);
MP Series List Price $8000.00  Your Price $6299.95

Watch the 1st Video on the latest model is FTDX5000MP Yaesu (by ito7310)

ヤエス最新機種のFTDX5000MPです。 – Request to ito7310!! Is there any way you can make another video but flip the switches slower where we can see the effects of the adjustment? … thanks.

FTdx-5000 Series coming soon in Italy – June, 2010 in Italia il Transceiver HF 50MHz 200W, lo ha annunciato Yaesu Italia/ ICAL Spa – Official Importer and distributor  Vertex Standard Yaesu.

FTdx-5000MP  arrived in US.  One of the first exemplary, probably assigned to who have classified the order, arrived in US  on 27 Feb. 2010. .Dick K6GAK – See more info, Link and Photo..

Continua a leggere

ADAT ADT-200A Direct-sampling RTX (SDR). Funkamateur, Jan. 2010, have Review Part 1

ADT-200A

ADAT ADT-200A SDR Transceiver is ready!  ADT-200A Vollständig digitaler Transceiver bereit!

Funkamateur, January 2010, have published Part 1 of their review on the ADAT ADT-200 direct-sampling Transceiver, by DJ1TO. The ADT-200 truly raises the bar in overall performance; it is comparable to the rx Perseus (….excluding the Perseus instead, allows the external PC!)

La Rivista Funkamateur di Gennaio 2010, ha pubblicato la Parte-1 della Review del ADT-200A un Transceiver a Campionamento Diretto, la recenzione 1 è  curata da DJ1TO.

See the Some more RTX information and the Links below. Here are pictures, Retail price and the EN User Manual download ….. Continua a leggere

IC-7600 ARRL Review on Nov. 2009 QST – 2kHz 3rd-ODR, way better than the 7700 @ 87db

IK0FUX_test-drive

IC-7600 ARRL Review on the November 2009 QST – 2kHz  88 dB 3rd-Order Dynamic Range, way better than the 7700 @ 87 dB! -
On the photo the I0GEJ’s Shack  and the IC7600 cw test-drive by IK0FUX, (N0FUX) Francesco (No 327 DXCC worked, CTC #1433, Mainly uses CW and him likes different keyers) – Link to ik0fux home-page

englishIC-7600 featured in the November 2009 QST review, reviewed by NCJ Managing Editor Rick Lindquist, WW3DE. 2kHz 88dB 3rd-Order Dynamic Range, way better than the 7700 @ 87dB! some data drawn from ARRL product reviews are summarized in the table on following image, compared to Icom IC-7600 IC-7700 IC-7800 and Yaesu FT-2000D.

[Note] These reviews are worth reading in their entirety on the QST, so as to obtain a systematic comparison between the most recent rigs.  – This new Icom is reviewed by Rick Lindquist, WW3DE National Contest Journal Managing Editor.

See the Link at PA1HR’s QST Key Measurements Summary web page, with QST data table for Icom Yesu Elecraft Flex Microtelecom (Perseus) and Tecn-Tec -  See Link and the table on following image and more…..>

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