14 Decembrie 2017
   
Sâmbătă, 17 Ianuarie 2015 21:05

Hytera PD785/PD785G DMR

  Preferata mea.De departe nici o statie portabila nu se apropie de cat de mult imi place. In primul rand designul.Amplasarea antenei pe centru si dispunerea butoanelor alaturi de lcd-ul incadrat frumos ca si tastatura o scoate din anonimat.

  Cel putin pentru mine. Vine in ambele variante VHF: 136 - 174 MHz siUHF: 400 - 470 MHz.Cu si fara GPS.De cand am vazut-o e un must have. NU gasesc nici un minus la ea. Carcasa bine gandita si rezistenta MIL810 - C/D/E/F/G si clasa de protectie IP67 o fac perfecta pentru mine. Alaturi de Yaesu VX-6-le meu va face echipa perfecta.La lucru si la bautele accidentale.Ale lor nu ale mele.

   Din punctul meu de vedere e portabila DMR a anului 2014. Unul din proiectele mele implica o asemenea statie si reteaua DMR-Marc. Adevarul e ca este atat de versatila incat poate fi folosita intr-un domeniu mare de activitati. si medii. Atat in radioamatorism cat si civil,militar,guvernamentalsi industrial.Exista si versiunea PD795 Ex pentru medii explozive. Pentru mine e portabila WOW pana acum.

  O prezentare amanuntita a facut si Adrian, YO3HJV pe pagina lui personala

  Cateva din specificatiile date de producator sunt:

 



 

 

 

 

 

 

 

 

 

 

 

 

General data
Frequency range
   
VHF: 136 - 174 MHz
UHF: 400 - 470 MHz
Supported operation modes
   

    DMR Tier II (DMR conventional), Simulcast
    DMR Tier III (DMR trunking)
    Analog, MPT 1327

DMR Tier II in reference to ETSI TS 102 361-1/2/3
DMR Tier III in reference to ETSI TS 102 361-1/2/3/4
Channel capacity
1024
Number of zones
64 (with up to 16 channels each)
Channel spacing (analog)
12.5 / 20 / 25 kHz
Channel spacing (digital)
12.5 kHz
Operating voltage
7.4 V (nominal)
Standard battery
2000 mAh (lithium-ion battery)
Battery service life (analog)
(5-5-90 duty cycle, high transmitting power, standard battery)
VHF: approx. 11 hours / 10 hours (GPS mode)
UHF: approx. 13.5 hours / 12 hours (GPS mode)
Battery service life (digital)
(5-5-90 duty cycle, high transmitting power, standard battery)
VHF: approx. 13.5 hours / 12 hours (GPS mode)
UHF: approx. 15.5 hours / 14 hours (GPS mode)
Frequency stability
±1.5 ppm
Antenna impedance
50 Ω
Dimensions (H×W×D)
(with standard battery, without antenna)
125 x 55 x 37 mm
Weight (with antenna and standard battery)
355 g
LCD display
160 × 128 pixels, 65,536 colours, 4.57 cm, 4 lines
Transmitter
Transmitting power
VHF: 1 / 5 W
UHF: 1 / 4 W
Modulation
11 K0F3E at 12.5 kHz
14 K0F3E at 20 kHz
16 K0F3E at 25 kHz
4FSK digital modulation
12.5 kHz (data only): 7K60FXD
12.5 kHz (data and voice): 7K60FXW
Interfering signals and harmonics
-36 dBm < 1 GHz
-30 dBm > 1 GHz
Modulation limiting
±2.5 kHz at 12.5 kHz
±4.0 kHz at 20 kHz
±5.0 kHz at 25 kHz
Noise suppression
40 dB at 12.5 kHz
43 dB at 20 kHz
45 dB at 25 kHz
Adjacent channel selectivity
60 dB at 12.5 kHz
70 dB at 20/25 kHz
Audio sensitivity
+1 dB to -3 dB
Nominal audio distortion
≤ 3%
Digital vocoder type   
AMBE+2™
Receiver
Sensitivity (analog)
0.3 μV (12 dB SINAD)
0.22 μV (typical) (12 dB SINAD)
0.4 μV (20 dB SINAD)
Sensitivity (digital)   
0.3 μV / BER 5%
Adjacent channel selectivity
TIA-603
ETSI
0 dB at 12,5 kHz / 70 dB at 20 and 25 kHz
60 dB at 12.5 kHz / 70 dB at 20 and 25 kHz
Intermodulation
TIA-603
ETSI
70 dB at 12.5/20/25 kHz
65 dB at 12.5/20/25 kHz
Spurious response rejection
TIA-603
ETSI
70 dB at 12,5/20/25 kHz
70 dB at 12.5/20/25 kHz
Hum and Noise
40 dB at 12.5 kHz
43 dB at 20 kHz
45 dB at 25 kHz
Nominal audio power output
0.5 W
Nominal audio distorsion
≤ 3 %
Audio sensitivity
+1 dB to -3 dB
Conducted spurious emission
< -57 dBm
Ambient data
Operating temperature range
-30 °C to +60 °C
Storage temperature range
-40°C to +85°C
ESD
IEC 61000-4-2 (level 4)
±8 kV (contact discharge) ±15 kV (air discharge)
Protection against dust and moisture
IP67
Shock and vibration resistance
MIL-STD-810 C/D/E/F/G
Relative humidity   
MIL-STD-810 C/D/E/F/G
GPS (PD785G only)
Time to first fix (TTFF) cold start
< 1 minute
Time to first fix (TTFF) hot start
< 10 seconds
Horizontal accuracy
< 10 meters

Duminică, 21 Septembrie 2014 20:40

Hytera PD355 & PD365

 

  Mici si foarte mici.Asa sunt noile modele de statii DMR de la Hytera. Pot fi folosite cu succes acolo unde se preteaza necesitatea transmisiilor radio protejate. Marimea conteaza. In cazul acesta dimensiunea redusa este un plus.
 Informatii complete  PD355 si PD365

 

Joi, 19 Iunie 2014 20:28

Hytera X1P

 Hytera continua sa uimeasca.Cu mica bijuterie de numai 200g / 18mm  cine doreste o statie radio DMR discreta acum o are. Aeroport,hotel,protectie si paza, Hytera X1P are locul si look-ul ei. Mica si puternica.

  Desi mica si foarte compacta Hytera foloseste tehnologie de ultima generatie si nu face rabat la calitate.GPS, bluetooth, e-mail, text message si multe altele fac din X1P o statie DMR care merita cumparata
   Informatii complete gasiti : aici

Sâmbătă, 15 Februarie 2014 18:49

HYTERA PT580H

 

     Hytera este unul din producatorii mei preferati. Desigunul si calitatea primeaza. Eu vad Hytera ca O alternativa mult mai ieftina si cu aceeasi aplicabilitate in servicii precum terminalele Motorola.

    Hytera PT580H este un terminal TETRA care poat eface fata cu usurinta aplicatiilor civile si industriale unde nevoia de securizare a transmisiei este vitala. Exista si varianta pentru aplicatii industriale care se numeste PT580H (UL913)

 

 

 

 


 Specificatiile producatorului:

GENERAL SPECIFICATIONS

Frequency Bands
   
380-430MHz/410-470MHz*/806-870MHz*
Dimensions(HxWxD)
   
120 × 58 × 23mm (1400mAH battery)
Weight
   
268g (with 1400mAH battery and antenna)
Battery
   
1400mAh/1800mAh
Battery Life
   
>13.5 hours (1400mAh)/17 hours (1800mAh)
LCD Color Display
   
1.8inch,160*128pixels, 65536colors
Talk Group
   
TMO: 3000/DMO: 2000
Maximum Audio Power Output
   
1.5W
RF SPECIFICATIONS
RF Channel Bandwidth
   
25KHz
RF Power Output
   
3W (1.8W for 806-870MHz)
RF Power Level Accuracy
   
±2dB
RF Power Control
   
4 steps of 5dB
Receiver Class
   
ETSI EN 392-2/396-2 Class A & B
RX Static Sensitivity
   
-112dBm (typical-116dBm)
RX Dynamic Sensitivity
   
-103dBm (typical-105dBm)
GPS SPECIFICATIONS
Sensitivity
   
≤-148 dBm acquisition sensitivity
Sensitivity
    ≤-162dBm tracking sensitivity
Accuracy
   
≤2.5m
Cold Start (Time to First Fix)
   
< 26s
Hot Start (Time to First Fix)
   
< 1s
Environmental
Humidity
   
ETS 300 019 (95%)
Water and Dust Protection
   
IEC60529, IP67
Drop, Shock & Vibration
   
MIL-STD-810 G
SECURITY
Enhanced Security – OTAR/DMO SCK
PIN/PUK
Ambience Listening
Authentication (Mutual)
AIE class 1, class 2, class 3(TEA1, TEA2, TEA3, TEA4) support
E2EE (End to End Encryption) Security Services: Software Encryption (AES 128, AES 256); Hardware Encryption (SIM card)
Tamper protected hardware encryption module (Meet FIPS 140-2 level 3 standard(being certified)
Enable/Disable
LICENSE
GPS
JAVA
Radio User Assignment (RUA)
Transmit Inhibit
Callout
OTAP (Over The Air Programming)
DMO repeater*
Tamper proof*
MSPD*
SERVICES
Fallback Operation
Energy economy
Seamless cell re-selection
VOICE
Half-Duplex
   
Individual call
Group call/Broadcast call
DTMF
Gateway call/Repeater call (DMO)
Phone call
Full-Duplex    
Individual call
Phone call (PABX/PSTN)
DTMF
 Emergency Call      Emergency group call to selected group
Emergency group call to pre-defined group
Emergency individual call and Status
Emergency phone call(PABX/PSTN)
Hot Key
Emergency Cycle
Configurable emergency priority
Sending location information (TMO)
Silent Emergency Call (TMO)
Pre-emptive call
Late entry
DGNA
Talking Party Identification
Multi-Network Selection
Private call Restricted according to the phonebook
  Switch Group with voice broadcast
DATA
SDS
   
Individual call
Group call/Broadcast call
DTMF
Gateway call/Repeater call (DMO)
Phone call
PD     Single-slot/Multi-slot
Peripheral Equipment Interface (PEI)/AT command
Callout

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