Archivi tag: C4FM Digital

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)

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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).

DV4mini Hotspot: a link with a simplex frequency (UHF) and a repeater through the Internet.

DV4mini Hotspot for the 70 cm band and can use it with a D-STAR or DMR or C4FM * transceivers – The DV4mini is a very small but also very capable USB Stick that can expand any PC into a Hotspot for the D-STAR and DMR modes (C4FM * Fusion is in development) – (trial beta ver. 18.8 or later uncheck “C4FM Gateway” only DN & VW mode) – Please read official data and the User manual! (link below)

DV4mini-PC-01

DV4mini  allows linking with DCS, XRF and REF refectors for D-STAR as well s DMR refectors (trial beta ver. 18.8 or later unckeck C4FM Gateway!). With the DV4mini it has become possible to create a hotspot with minimal resources and thus get access to the (Digital Voice) DV network.
[NoteRefector is a server connected to the Internet or Ham Net and is linked to a number of digital Ham Radio repeaters. If one of these repeaters is active it will send the voice data stream to the refector- (Xrefectors are the second generation of D-STAR reflectors… etc) – (DCS (Digital Call Server) is the most modern D-STAR refector system and in worldwide use, each as 26 rooms) – (DMR refectors consist of several regional servers, ach other via a superordinate network one Hytera & one Motorola) (System Fusion supports WIRES-X internet linking – .. node station requires external optional HRI-200 !)

The DV4mini is a great UHF digital hotspot. It’s support D-Star, DMR and C4FM* !! Very promising technology in process.

DV4mini-software-01

The DV4mini will be connected thru the USB interface with a PC or a single board computer (es: Raspberry PI 2 Mod. B also a keyboard, mouse and HDMI display) and the required software will be installed: V.1.4 DV4mini Controll Panel.

DV4mini-01

Frequency 420-450MHz – Modulation types: D-Star GMSK (Gaussian 2FSK) – DMR PLUS 4FSK Raised Cosine – C4FM Fusion DN & VW 4FSK, in process* – Power output: 0.03 mW to 10 mW. – RX -120dBm – Read more to the official web-page.

Link to: Download the DV4mini User Manual ver. ENG .Pdf 

I believe not now, it’s available for Windows, Linux and Raspian ! (Raspberry Pi 2) – For those interested in digital communications, like D-Star, DMR and C4FM there’s a new dongle who will be coming out soon (… they are saying it will be available for international shipping next week). [Note]!! DV4mini Library (in C) licensed under GPL 3.0 — USB Stick DV4mini Copyright:
The rights for the DV4mini stick and its software are reserved with DG8FAC Stefan, DG1HT Torsten, and (>) DJØABR Kurt

[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)

The FT-991’s in Stock in Europe – FT-991 ora è disponibile in Europa

The Yaesu FT-991 HF 50MH VHF UHF Transceiver in Stock in Europe. – The transceiver offers full-fledged support for all modes and include C4FM Digital (4FSK) – Rear panel USB port allows connection to a PC with a single cable (CAT control, Audio interface, PTT/SHIFT control) … at long last!

FT-991-i0gej-00

The new FT-991 is capable of using only 2, C4FM digital modes:
1) V/D mode = communicates Voice & Data simultaneously and using 6.25 + 6.25 kHz bandwidth – [DN] is displayed on the LCD – the station location info is contained within the tx digital signal;
2) Voice FR mode (Full Rate) = trasmits digital voice using the full 12.5 kHz bandwidth – [VW] is displayed on the LCD – the location info is not included in the tx signals;
[Note] Data FR mode (Full Rate) = high speed data communication mode is not supported in the FT-991!  (Data Full Rate by C4FM is not possible).

FT-991-i0gej-02

The new digital mode C4FM (4FSK) spectrum on 29.460 MHz (experimental test in USA) measure about 15 KHz wide in the HF bands!! (Q: Voice is voice, whether it is digital or analog modes? … used only in the FM phone bands?)

C4FM-spectrum

FT-991 Software Update – Yeasu USA latest version & dates
MAIN Firmware Version 01-13 update 03/20/2015;
DSP  Firmware Version 01-02 update 03/20/2015;
Enhanced the effect of APF (Audio Peak Filter) to increases the level in CW mode;  Improved and optimized (by Yaesu USA)

Link to: Yaesu USA web site for official data and news (ENG)

[Note] Please read the official FT-991 Firmware Upgrade Manual before proceeding!

[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)

Samhoo will launch its DMR SPH6000’s, SPH2000’s & SPM6000’s in the IWCE 2015

SPH6000 Series – Samhoo Sci & Yech Co., LTD, Guangdong, China will launch its DMR Portable SPH6000 serial, SPH2000 serial and DMR Mobile SPM6000 serial DMR & PDT Radio, in the International Wireless Communications Expo IWCE 2015 – Las Vegas NV (Exhibits Mar. 18-19 2015)

Samhoo-drm-china

Sempre più produttori cinesi si tuffano nel mercato DMR e PDT Radio – Digital Trunking Radio!Samhoo dichiara, nella sua brochure, il suo successo nello sviluppo e produzione di apparati Digital PMR radio, DMR, TETRA e PDT per ogni tipo di impiego, con un team dedicato da oltre 10 anni. (…read more)

Samhoo Sci & Tech Co.,LTD (Samhoo) DMR Portable SPH6000 serial, SPH2000 serial and DMR Mobile SPM6000 serial, which all fully compliant with ETSI DMR Tier 3 & Tier 2 & PDT (optional), and be available in UHF (350-400MHz, 400-470MHz) and VHF (136-174MHz) bands (rlease soon).
All working mode: DMO, RMO, TMO (optional) – Voice + Data services, and multi-level Encryption – GPS and worldwide position tracking – IP67 & MIL-STD-810G, etc.

Full specs can be found in this PDF document: Samhoo PDF
Las Vegas Convention Center IWCE 2015 – (Las Vegas, NV)

[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-991HF/V/UHF – Software Update Main V01.13 and DSP V01.02

Yaesu FT-991 -Yaesu USA Update the Firmware MAIN Ver.01.13 and DSP Ver.01.02 of 20/03/2015 – See link below – [Note]: Please read the Yaesu Firmware Upgrade Manual before proceding to the Yaesu “classic” multiple software installations! – Caution: it does wipe all the settings including the memory channels. – See the Video by KC8VWL below.

Main-DSP-0113-0102_20032015
FT-991 Firmware MAIN V0113 DSP V0102 Update 20/3/2015

Link to: Yaesu USA FT-991 Firmware Information (ENG)

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Yeasu FT-991 internal view MAIN Unit VHF/UHF & HF 50MHz

FT-991: Triple conversion with 1st IF frequency of 69.450 MHz for all bands – 1st IF stage 3 kHz roofing filter, not only in HF but also in VHF and UHF bands – IPO, AMP1 and AMP2 for the HF/50MHz bands – The RF AMP for 430 MHz uses HEMT NE3509 devices – ! See pic & video below –

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FT-991 full color TFT LCD display with Spectrum Scope and Waterfall Capability. – The TFT Display provides useful information about function status and setting at a glance, intuitive layout makes touch operation a pleasure.

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italianoFT-991 – il display a colori “touch” sembra facile da usare ed è intuitivo anche per i numerosi settaggi, che ora si presentano sullo schermo, di volta in volta, con tante icone e a gruppi come si vede dalle foto. – Forse, data la dimensione di soli 3″ del TFT LCD, per molti di noi, ci vorranno gli occhiali per “toccare” quella esatta !

FT-847_1998

Those waiting on Yaesu to replace the old quad band FT-847 will enjoy…! – Those waiting on Yaesu to release a replacement for the small FT-817 will just have to keep waiting..! –

FT-991 – Video … Eric, KC8VWL talks about some of the merits of the brand new Yaesu FT-991 HF through UHF transceiver.  (Universal radio a video 5.1 mins of 2 feb 2015)

FT-991 Final Stage with Ample Power Reserves: Push-pull arrangement of RD100HHF MOS-FET devices for HF/50 MHz range, output power 100 Watts. For the VHF & UHF bands uses the MOS-FET RD70HUF2 device which incorporates two MOS-FET in a single package, ouput of 50Watts

PA-Unit
FT-991 the PA UNIT with 2xRD100HHF1 for HF/50MHz

Link to: Yaesu FT-991 Information Brochure (5.19 MB) ENG

[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 HF/50/144/430 MHz All Mode+ C4FM in a Single Compact Unit

Yaesu FT-991  HF/50/144/430 All Mode + C4FM Digital Functions in a Single Compact Unit – Touch Panel Operation Combined With Tradizional Layout and Spectrum Scope Function With Waterfall Display Capability in a 3.5 Inch full color TFT LCD display etc. (read  official leaflet and download the User Manual & the GM Istruction (ENG pdf)… see link below)

FT-991_multicontrols
FT-991 TFT LCD Display provides imformation abaut function status and settings

The FT-991 is equipped with a 3.5 inch full-color TFT display provides abaut functio status and settings including the function key display with intuitive layout makes touch operation and settings at a glance. Functions including the receiving band, the noise and signal interference reduction tool are grafically displayed.

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FT-991 Operation mode: press MODE Button & select mode with touch screen

Operating Mode: Press MODE Button to display the radio modulation form  selection scree, then touch and select your desired modulation form.

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FT-991 – Press BAN Button and select the band in one touch!

FT-991 – Press [BAND Button] and selecet the band in one touch in the display – Band Stack Operation – utilizes a triple band-stack VFO selection thet permits storing of up to three favorite ferquencies and modes onto each bamd VFO register. [Note] Only the VFO-A system has the band stacks!

FT-991-rearpanel

Final Stage with Ample Power Reserves: Push-pull arrangement of RD100HHF MOS-FET devices for HF/50 MHz range, output power 100 Watts. For the VHF & UHF bands uses the MOS-FET RD70HUF2 device which incorporates two MOS-FET in a single package, ouput of 50Watts.  – ATU autimatic tuner only for HF/50MHz bands.

C4FM_VD-mode
Digital C4FM (4-level FSK) Voice/Data Mode (V/D Mode)

Digital C4FM Mode (4-level FSK Frequency Shift Keing) for digital communication in the FT-991 can be switched betwee 1) [V/D mode] and 2) [Voice FR mode]. – 3) Not *

1) V/D Mode: for simultaneous trasmission of Voice & Data communication. Half of the bandwidth is used for voice signal with error correction.  Other Half of the data communication. (6.25+6.25 kHz = total bandwidth 12.5 kHz)
2) Voice FR Mode: for voice full rate mode, that uses  entire 12.5 kHz bandwidth to trasmit only digital voice data, with high sound quality.

[Note] 3)* [Data FR mode] high-speed data communication mode, that uses entire 12.5 kHz bandwidth for only data is not supported in this device. (…see Yaesu leaflet info)

Link to: Yaesu FT-991 Information Brochure (5.19 MB) EN
Link to: Download User and GM group Instruction Manuals 

WIRES-X the Yaesu Internet Linking (VoIP wireles HRI-200 Modem is necessary) for Digital Node Station / Internet LAN

Wires-X-diagram
Yaesu WIRES-X diagram for VoIP Communication

WIRES (Wide-coverage Internet Repeater Enhancement System) is an Internet communication system,  an amateur node station, with HRI-200,  connecting to the Internet is used as the access point and connects the wireless communication to the Internet.
Link to:  Wires-X spec & Info by Yaesu USA webpage (ENG)

[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.

Yaesu FT2DR C4FM/FM 144/430 MHz Dual Band Digital Transceiver

FT2DR – Yaesu Introducing a New Digital Portable C4FM – FM 144/430 MHz Dual Band Transceiver – Easy operation with large touch panel display – Builtin High Sensitivity 66 ch GPSS – Dual watch & Dual Monitor – Shipping early 2015!

FT2D_FT1D-display
Yaesu FT2DR with large touch panel display (coming soon)

FT2DR System Fusion compatible – FM digiatal operation with AMS (Automatic Mode Select) – New 1.7-inch high resolution touch screen display – 700 mW Loud and Clear voice technology –  Modulation F1D F2D F3E F7W – 5W @ 7.4V – Weight 310 g  – Receiver frequency range = A (Main) Band 1.8 – 30MHz / 76 – 108 MHz / 137 – 174 NHz / 222 – 420 MHz (GEN1) / 470 – 774 MHz (UHF) – B (Sub) Band idem A)  not SW Band & FM Broadcast.

FT2D-front
New Yaesu FT2DR Digital & Analog VHF UHF (coming soon)

FT2DR include: a built-in High Sensitivity 66 ch GPS with antenna – 1200 bps/9600 bps APRS® function – Dual watch (V/V U/U/ V/U) – Dual Monitor (C4FM Digital / C4FM Digital) – GPS Logging / Recording capabilities – Water resistant (IPX5 Rating) & microSD Card Slot. Read the official web-page for complete information

Link to: Yaesu Usa VHF/UHF Handhelds web-page (ENG)

[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 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).

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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.

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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.

Roofing-filters
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 .

Yaesu_FT-991
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! (..info 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)

AOR AR-DV1, a new breed of receiver – CSI CS7000 Multi-mode D-STAR & DMR

AOR AR-DV1, a new breed of receiver made in Japan! Multi mode decode and wide range capability. See the preliminary information (PDF) link below, of choice when you want to listen in to special communications. – New CSI CS7000 Multi-mode handhelds D-STAR & DMR (TDMA) by Connect Systems Inc. made in USA ..see below.

AR-DV1-info
AR-DV1 100kHz – 18MHz Direct Conversion – 18MHz – 1300MHz Triple superheterodyne

Until now, Multi-Mode meant AM, FM (wide & narrow), SSB and CW,  the AOR adds the following digital modes:
DMR (Digital Mobile Radio)
dPMR (Digital Private Mobile Radio)
D-Star –  APCO-25 – NXDN
Yaesu Digital (C4FM System Fusion)
Alinco Digital – Digital-CR
AOR G4GUO ( as used in ARD9000/9800 models)

Link to: AOR AR-DV1 Brochure, pre-release (PDF) ENG

CS7000  A NEW MULTIPROTOCOL RADIO by CSI – USA

jerry-Wanger-CSI

This radio is defined for the Amateur Market and will have an introductory price of $249. – Capable of doing DMR, NXDN, dPMR, P25, ANALOG, D-STAR, AND FUSION Protocols. – This radio is built to commercial strandards and will cover commercial Frequencies.
The first version will ship with Analog, DMR, and D-STAR protocols with future firmware updates allowing other protocols – There’ll just be firmware upgrades with which you can add features.!

CSI-specimen

On the CS7000 the (firmware) software is open source, that Hams will evolve the kernel to make it increasingly more powerful to add industry standard protocols.

The primary microprocessor is a STM32F405VGT6. This is an ARM Cortex M4 32 bit high speed microprocessor – The second microprocessor is a DVSI 3000R. This microprocessor uses a TMS320F2811 core and is dedicated to executing the AMBE and AMBE +2 Vocoder formats and other algorithms (!!)

CSI planning on is releasing a single radio that will do both modes of analog and digital. – New expected Delivery is Jannuary  2014 (CSI update 28/10/2014) more news…. see the two link and info below

italianoIn un’intervista esclusiva a http://www.va3xpr.net/, il proprietario e presidente della Connect Systems Inc. – USA, Jerry Wanger parla dei piani produttivi della sua azienda che sorprenderà i Radioamatori con il lancio di questa nuova radio digitale vocale che supporterà sia il Digital Mobile Radio (DMR – TDMA) che, lo Smart Digital Technologies per Radio Amatori (D-STAR o D-star a seconda del sistema proprietario o compatibile in GMSK) – Successivamente saranno completati gli altri modi digitali.

Jerry Wanger prosegue dicendo CHE Il CS7000 porterà un avanzamento nella tecnologia progettuale e il prezzo medio rispetto a quello che è ora disponibile sul mercato, tanto da cambiarlo radicalmente. –  Il progetto prevede un firmware open-source che permetterà ai Radioamatori interessati di implementarlo e ampliarne le possibili applicazioni  tenendo conto dei processori e codec previsti e più sopra indicati.

Link to: White Paper by Jerry Wanger CEO for the CS7000
l
ink to: Connect Systems Inc. Agoura Hills, CA US web-page

[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)

Yeasu FT-991 HF 50 144 430MHz All Mode + C4FM Digital – New AOR AR-DV1 Digital Receiver

FT-991 HF 50 144 430MHz 100W All Mode Transceiver – The New Yaesu quad-band all mode preliminari fetaure: Operate on the SSB / CW / FM / C4FN Digital / AM / RTTY / PSK mode – Roofing Filters 3 and 15kHz – Full color TFT display – High speed DSP 32-bit – PA output 100Watts (VHF/UHF 50Watts) – ATU and more.(….read the official Yaesu source!)

FT-991_Front-med
FT-991 Coverage: 160-6m, 2m and 70cm – 3.5″ TFT Touch Panel – All Mode & C4FM Digital

The FT-991 can be connected to a computer using a USB cable for CAT control and firmware updates, …or the use of an optional SCU-17 Interface Unit to support USB Audio In/Out, TX Control (PTT, Key, Shift).

FT-991_rear-c
FT-991 HF VHF UHF All mode Transceiver (Two ant. Connector, GPS/CAT & USB Port)

La Yaesu ha presentato a Tokyo l’FT-991 un nuovo quadribanda HF 50MHz VHF e UHF all mode compreso il modo C4FM del System Fusyon modulazione FDMA digitale. Sostituisce e migliora con un Display TFT touch il noto e diffuso FT-897 (end)

AOR AR-DV1 the new Digital Voice Receiver – Analog / digital full cover range 100kHz – 1300MHz, builtin eight digital receive demodulation mode .  – Analog operates modes: SSB / Cw / FM (WFM – NFM – SFM) / AM  (WAM – NAM -& Syncronous detection.

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AR-DV1 Digital/Analog Modes Built-in Decoder
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Ham fair 2014 – AR-DV1 Digital Voice Receiver – Analog / digital cover 100kHz – 1300MHz

AR-DV1 preliminary info: Receive System: 100kHz-18MHz Direct Conversion (SDR) – 18MHz-1300MHz Triple Conversion Super-heterodyne. (…read the official AOR source for more informations!)

TRX-305_SDR

The new TRX-305A HF SDR Transceiver (Kit) – Full digital RF signal processing experiment kit at Ham Fair 2014 CQ Publishing Booth & AOR Ltd. – Read more by RadioCronache

AOR-booth
AOR Ltd Preview the AR-DV1 wideband digital/analog receiver.

 [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)