Archivi categoria: DMR

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

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

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

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

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


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


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


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


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


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

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


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


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


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

[Note] – Detailed specifications: please see the official sources – All specifications are subject to change without notice – All trademarks belong to their respective holders.- This page is just a non-official overview, where no one should draw any conclusions – All images and versions above is for illustration only. – (tnx)

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

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


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


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


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

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

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

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


 [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)