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AOR AR-8200 MK3
AOR AR8200 MK3

 

 

Icom IC-R20
Icom IC-R20

 

 

Alinco DJ-X2000
Alinco DJ X-2000



Guida radio, ovvero: che ricevitore utilizzare?     -     Palmari

 

  • AOR AR8200 MK3
    • Frequency Range  530 kHz to 3000 MHz *
    (Actual frequency input 100 kHz to 3000 MHz,
    performance between 100 kHz to 530 kHz is not guaranteed).
    * Cell blocked in the USA for FCC rules
    Receive Modes  WFM, NFM, SFM, WAM, AM, NAM, USB, LSB, CW
    Sensitivity 500 kHz ~ 1.9 MHz AM 3.5 µV (10dB S/N)
    1.9 MHz ~ 30 MHz AM 2.5 µV (10dB S/N)
    30 MHz ~ 470 MHz AM 1.5 µV (10dB S/N)
    NFM: 0.85 µV (12dB SINAD)
    WFM: 1.5 µV (12dB SINAD)
    470 MHz ~ 1040 MHz NFM: 0.9 µV (12dB SINAD)
    1040 MHz ~ 2040 MHz NFM: 9.0 µV (12dB SINAD)
    2040 MHz ~ 3000 MHz  NFM: 25 µV (12dB SINAD)
    Selectivity SSB/NAM 3kHz (-6dB) 9kHz (-40dB)
    AM/SFM 9kHz (-6dB) 20kHz (-40dB)
    WAM/NFM 12kHz (-6dB) 25kHz (-40dB)
    WFM 150kHz (-3dB) 360kHz (-20dB)
    Power requirements 4 x AA internal batteries or 12V to 16V d.c. external supply 190mA (nominal) consumption
    Dimensions 61(W) x 143(H) x 39(D) mm approx excluding projections
    Weight 340g approx including batteries and aerial
    Operating temperature -5°C to + 50°C
    Audio output 120mW (8 OHM) THD 10%
    Memory channels 1,000 (20 banks)
    Select scan channels 50
    Priority channels 1
    Search banks 40
    PASS channels 50 per search bank + 50 for VFO search
    Scan/Search Rate 37 steps per second (nominal)

     

  • ICOM IC-R20
    • Receiver system Triple conversion superheterodyne + down converter

    Intermediate frequencies

    1st 

     

    2nd

    3rd

     

    266.7 MHz

    429.1 MHz

    9.65 MHz

    450 kHz

    Sensitivity

    FM (12dB SINAD)

     

     

     

    WFM (12dB SINAD)

     

    AM (10dB S/N)

     

    SSB, CW 10dB S/N)

    (except spurious points; single receive)

    1.620-4.999MHz 0.56µV
    5.000-221.999MHz 0.4µV
    330.000-832.999MHz 0.56µV
    833.000-1304.999MHz 0.71µV
    1330.000-2304.999MHz 5.6µV
    2330.000-2999.999MHz 18µV
       
    76.000-108.000MHz 1.8µV
    175.000-221.999MHz 1.8µV
    470.000-769.999MHz 2.5µV
       
    0.495-4.999MHz 2.2µV
    5.000-29.999MHz 1.4µV
    118.000-135.999MHz 1.4µV
       
    0.495-4.999MHz 0.4µV
    5.000-29.999MHz 0.25µV
    50.000-53.999MHz 0.25µV
    118.000-146.999MHz 0.25µV
    330.000-469.999MHz 0.32µV

    Selectivity

    SSB, CW

    AM, FM

     

    WFM

    		  

    More than 1.8kHz/-6dB

    More than 12kHz/-6dB

    Less than 30kHz/-60dB

    More than 150kHz/-6dB

    AF output power (at 3.7V DC) 100mW typ. at 10% distortion with an 8Ω load

     

  • Alinco DJ-X2000 
    System: Triple-conv. Superheterodyne
1st IF: 814.5MHz or 304.3MHz
2nd IF: 45.05MHz
3rd IF: 455KHz 
Typical sensitivity:
FM/WFM 12dB SINAD, AM/SSB/CW 10dB S/N

AM:
0.1 to 5.0 MHz: 1.5µV
5.0 to 900MHz: 1.0µV

SSB/CW:
0.1 to 5.0 MHz: 0.6µV
5.0 to 900MHz: 0.5µV
900MHz up: 1.0µV

NFM:
5.0 to 900MHz: 0.5µV
900MHz up: 2.0µV

WFM:
5.0 to 900MHz: 2.0µV
900MHz up: 4.0µV

     

    under construction


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