[Icom] Decision time and request for advice (long)

Dana Hoggatt [email protected]
Tue, 30 Apr 2002 23:38:40 -0500


The ARRL Review measurements for the three
rigs are fairly close.  The IC-756-PRO-II wins
in some catagorries and the FT-1000MP-MkV
wins in some others.  I don't think its possible
to make a bad decision in this case.

                          IC-756 IC-756 FT-1000

CW/SSB Sensitivity, Noise  -134.7 -132.2 -127.5
     300m                    -121   -117   -117
     80m                     -132   -127   -127
     20m                     -131   -128   -127
      6m                     -125   -126     -
     300m - preamp 1                       -122
     80m - preamp 1          -140   -135   -136
     20m - preamp 1          -139   -136   -136
      6m - preamp 1          -136   -132     -
     300m - preamp 2
     80m - preamp 2          -143   -141
     20m - preamp 2          -141   -140
      6m - preamp 2          -139   -140     -
AM Sensitivity, 10 dB (S+N    1.9    2.8    4.2
     300m                       5    9.1    8.7
     80m                      1.6    3.1    2.8
     20m
      6m                      3.6    2.8     -
     300m - preamp 1                        4.3
     80m - preamp 1           0.7    1.1    1.1
     20m - preamp 1
      6m - preamp 1           1.2      2     -
     300m - preamp 2
     80m - preamp 2          0.46    0.6
     20m - preamp 2
      6m - preamp 2          0.65    0.7     -
FM Sensitivity, 12 dB SINA   0.53   0.67   0.51
     10m                     0.72    1.2   0.72
      6m                      1.2    1.2     -
     10m - preamp 1          0.33    0.4    0.3
      6m - preamp 1          0.43    0.7     -
     10m - preamp 2          0.21    0.2
      6m - preamp 2          0.28    0.3     -
Blocking Dynamic Range, 50  115.9  125.0  128.0
     80m                      119    127    129
     20m                      118    127    129
     6m                       116    127     -
     80m - preamp 1           118    125    128
     20m - preamp 1           116    125    126
     6m - preamp 1            117    130     -
     80m - preamp 2           113    122
     20m - preamp 2           111    120
     6m - preamp 2            115    122     -
Two Tone, third-order, IMD   94.2   90.6   97.8
     80m                       98     92     98
     20m                       97     95    101
     6m                        94     93     -
     80m - preamp 1            97     92     94
     20m - preamp 1            95     92     98
     6m - preamp 1             94     84     -
     80m - preamp 2            92     90
     20m - preamp 2            91     88
     6m - preamp 2             90     89     -
Third Order Intercept, 20K    7.1    3.4   19.3
     80m                     17.1   13.5   24.3
     20m                     20.2   15.4   25.7
     6m                      14.4   15.2     -
     80m - preamp 1           8.2    4.7    9.8
     20m - preamp 1          10.2    4.3   17.3
     6m - preamp 1            6.1   -4.2     -
     80m - preamp 2          -4.3     -5
     20m - preamp 2          -4.1   -6.9
     6m - preamp 2           -4.2   -6.2     -
Second Order Intercept (dBm)
     preamp off                75     64   68.3
     preamp 1                  71     63   68.5
     preamp 2                  59     43
     VRF - preamp off                       110
     VRF - preamp on                        112
FM Adjacent Channel Rejection (dB)
     10m                              76     85
     6m                               82     -
FM, Two-tone, third order IMD dynamic range (dB)
     10m                       77     78     79
     6m                        77     77     -
RF Output, CW/SSB/FM, (w)
     HF                       100    100    200
     6m                       100    100     -
     duty cycle              100%   100%    50%
RF Output, AM,  (w)
     HF                        40     40     50
     6m                        40     40     -
     duty cycle              100%   100%

Worst Case Xmit Spurious (    -57    -57    -49
Worst Case Xmit IMD, (dB PEP)
     3rd - HF                  30     31     45
     5th - HF                  40     49     64
     3rd - VHF                 28     34     -
     5th - VHF                 42     40     -