Sherwood Engineering Incorporated Sherwood Engineering Incorporated
1268 South Ogden Street Denver, Colorado 80210 USA
email     Phone:
303-722-2257     FAX: 303-744-8876
9 a.m. - 5 p.m. MST Monday - Friday


SE-3 Features Hear the Difference Interface Shortwave Radio to SE-3
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Receiver Test Data
Sorted by Third-Order Dynamic Range Narrow Spaced - or- ARRL RMDR (Reciprocal Mixing Dynamic Range) if Phase Noise Limited

Updated 23 February 2015 added Elecraft K3 with New Synthesizer Board
Device
Under Test
Noise
Floor
(dBm)
AGC
Thrshld
(uV)

dB
100kHz
Blocking
(dB)

Sensitivity
(uV)
LO Noise
(dBc/Hz)
Spacing
kHz
Front End
Selectivity
Filter
Ultimate
(dB)
Dynamic Range
Wide Spaced
(dB)

kHz
Dynamic Range
Narrow Spaced
(dB)

kHz
Added 9/29/14
FlexRadio Systems
6700
Hardware Updated
-118
-135b2
3.0
1.0b2
Var A/D Limit 2.0
0.25b2
145
155
10
50
B Band Pass 115 99 20&2 108y
20&2
Added 02/23/15
Elecraft
K3
New Synthesizer
-136
-139bq
1.0
0.3b
3 141 0.8
0.5b
145
147
10
50
B Band Pass 108 105q 20 107p
104q
2
Added 10/02/12
Hilberling
PT-8000A
Hardware Rev 2.00
-128
-141b
5.4
1.0b
3 142 0.45
0.11b
144
149
10
50
A Trk Presel 100 105 20 105w
2
Added 08/10/12
Elecraft
KX3
-123
-138b2
12
1.3b2
3 138 0.9
0.09b2
144 10 B Band Pass 110 105 20 104t
96u
65v
2
Added 12/01/10
Yaesu
FTdx-5000D
-123
-135b
-141b1
4.6
1.2b
0.33b1
3 127s 1.1
0.27b
0.13b1
135 10 B Band Pass 90f 104 20 101f 2
Added 2/15/08
Elecraft
K3
-130
-138b
2.1
0.6b
3 140s 0.33
0.19b
138 10 B Band Pass 105 104 20 101pf
96qf
95r
2
Updated 7/2/09
Perseus
-123
-125b
0.15
0.1b
3 125 0.8
0.6b
147 10 B Band Pass 109f 99 20 99 2
Added 2/15/08
FlexRadio Systems
FLEX-5000A
-123
-135b
2.0
0.5b
3 123s 1.3
0.3b
123 10 B Band Pass 98 96 20 96 2
Added 4/16/06
Ten-Tec
Orion II
-125
-133b
2.7
0.65b
3 130 0.75
0.3b
126 10 B Band Pass 100f 95f 20 95i 2
Updated 4/17/06
Ten-Tec
Orion
-127
-135b
0.8 3 137 0.6
0.25b
130 10 B Band Pass 100f 96 20 93 2
Added 12/09/14
Kenwood
TS-590SG
Down Conversion Mode
-127
-135b
2.2
0.65b
3 137 0.42
0.17b
139
141
10
50
B Bandpass 100f 104 20 92f
2

Added 06/22/13
Ten-Tec
Argonaut VI

-125
-135b
3.2
0.75b
3 127 0.52
0.25b
127
134
10
50
B Band Pass 95f 95 20 92f 2

Added 11/10/10
Ten-Tec
Eagle

-124
-132b
2.5
0.6b
3 129 0.7
0.3b
131
143
10
50
B Band Pass 92f 93 20 90f 2

Added 8/20/09
FlexRadio Systems
FLEX-3000

-123
-139b
2.1
0.13b
3 116s 1.35
0.16b
120 10 B Band Pass 90f 90f 20 90f 2

Added 12/30/10
Kenwood
TS-590S on 20 meters
Down-conversion Mode
For Up-Converson
see Narrow Spaced
at 76 dB

-128
-137b
1.8
0.5b
3 144s 0.43
0.15b
140 10 B Band Pass 92f 104 20 88f 2
Device
Under Test
Noise
Floor
(dBm)
AGC
Thrshld
(uV)

dB
100kHz
Blocking
(dB)

Sensitivity
(uV)
LO Noise
Spacing
(dBc/Hz)

kHz
Front End
Selectivity
Filter
Ultimate
(dB)
Dynamic Range
Wide Spaced
(dB)

kHz
Dynamic Range
Narrow Spaced
(dB)

kHz

Added 02/26/11
FlexRadio Systems
FLEX-1500

-112to-116
-120to-129b
-121to-136b1
3.1
1.0b
0.4b1
3 108 2.8
1.4b
0.3b1
131 10 B Band Pass 95 88 20 88 2

Added 06/02/13
Kenwood
TS-990S on 20 meters
15 & 12 meters
RMDR varies by band
17 meters is worst band
30 meters is best band

-127
-138b
-1386
1.9
0.46b
3 145 0.75
0.17b
0.136
138
150
10
50
A Trk Preselec 90f 111 20 87x 2

Added 2/15/08
Icom
R9500

-127
-130b
-135b1
1.1
0.25b
0.16b1
3 119 0.7
0.2b
0.11b1
134 10 B Band Pass 80 110f 20 85f 2
Drake
R-4C/CF-600/6
-138 0.7 3 130 0.15 135 2.5 A- Preselector 130 85 20 84 2

Added 12/13/2012
Yaesu
FTdx-3000

-127
-138b
-142b1
3.8
1.0
0.36
3 132 0.57
0.15
0.11
127 10 B 0.5 Octave 80 105f 20 82f 2
AOR
AR-7030
-122
-128b
2.2 3 130 0.5
0.22
130 10 D Hi/Lo Pass 90 100 20 82 2
Added 4/16/06
Icom
IC-765
-134
-140b
5.0
1.7b
3 143 0.26 130 10 B Band Pass 95f 102 20 81f j m 2
Added 10/03/14
Icom
IC-703+
-126a
-135a b
2.1
0.8b
3 128 0.33
0.125b
115
132
10
50
B Band Pass 85f 96 20 81a 5
Atlas
350-XL
-131 1.0 11 117 0.2 125 4 C Band Pass 95 81 20 81 2
Kenwood
TS-830/YK88
-129 1.5 3 122 0.1 114 2 C Preselector 85f 84 20 81 2
Added 4/23/07
Ten-Tec
Omni VII
-130
-140b
0.8
0.2b
3 130 0.45
0.17b
124 10 B 0.5 Octave 100f 92 20 80 2
Added 10/3/04
Icom
IC-7800
-126
-136b
-139b1
4.5
1.2b
0.6b1
3 >135 0.60
0.15b
0.10b1
130 10 A Trk Presel 100f 102 20 80f 2
Added 10/3/04
Elecraft K2
s/n:3170
-129
-136g
10
1.7b
15 123
134h
0.35
0.20
123 10 B Band Pass 80f 98 20 80f 2
Added 2/27/04
Ten-Tec
Omni VI+
-135 0.7 3 145 0.2 137 20 B Band Pass 80 97 20 80 2
Device
Under Test
Noise
Floor
(dBm)
AGC
Thrshld
(uV)

dB
100kHz
Blocking
(dB)

Sensitivity
(uV)
LO Noise
Spacing
(dBc/Hz)

kHz
Front End
Selectivity
Filter
Ultimate
(dB)
Dynamic Range
Wide Spaced
(dB)

kHz
Dynamic Range
Narrow Spaced
(dB)

kHz
Yaesu
901-DM
-135 1.6 3 124 0.15 109 2 C Preselector 85 87 20 80f 3
Added 8/10/12
Yaesu
FT-950
-120
-132b
-138b1
4.5
1.2b
0.5b1
3 125 1.1
0.31b
0.15b1
125 10 B 80f 105 20 79f 2
Collins
R-390A
-137 N.A.   130 0.2 130 2 A+ Trk Presel 85 81 20 79 2
Ten-Tec Corsair -131a 0.1 14 130 0.2 132 5 C Band Pass 90 93 20 79 3

Added 12/13/2012
Icom
IC-7700

-127
-140b
-143b1
6.5
1.6
0.8
3 140 0.69
0.15
0.10
129 10 A Trk Presel 90 105 20 78f 2
Added 9/3/09
Icom
IC-7600
-130
-138b
-141b1
5.3
2.35b
1.13b1
3 126 0.43
0.16b
0.11b1
121 10 B 78f 100 20 78f 2
Added 8/25/11
Icom
IC-7410
-135
-142b
-144b1
2.9
1.35b
0.5b1
3 135 0.3
0.12b
0.1b1
121 10 B 75f 102 20 78f 2
Icom
IC-720A
-137 1.6 3 138 0.15 117 10 C 0.5 Octave 80 93 50 78 3
Kenwood
TS-820S
-137 0.4 3 115 0.2 125 10 C Preselector 80 79 20 78 3
Updated 4/17/06
Kenwood TS-850
Inrad-400s
-128
-138b
2.2
0.5b
3 128 0.45
0.15b
        90 20 77 2
JRC
NRD-515
-138 3.5 4 103 0.1 118 10 C 0.8 Octave 80 95 20 77f 2

Added 12/30/10
Kenwood
Up-conversion
TS-590S on 17 meters

-132
-139b
1.4
0.42b
3 133s 0.28
0.13b
N.A. 10 B Band Pass N.A.f 102 20 76f 2
Ten-Tec Omni V -134 1.2 6 135 0.18 134 10 C Band Pass 100 89 20 76 2
Atlas
210/215X
-120a N.A.   123 0.5 N.A.   C Band Pass 95 76 20 76 2
Device
Under Test
Noise
Floor
(dBm)
AGC
Thrshld
(uV)

dB
100kHz
Blocking
(dB)

Sensitivity
(uV)
LO Noise
Spacing
(dBc/Hz)

kHz
Front End
Selectivity
Filter
Ultimate
(dB)
Dynamic Range
Wide Spaced
(dB)

kHz
Dynamic Range
Narrow Spaced
(dB)

kHz
Corrected 4/7/06
Icom
756 Pro III
-132
-140b
-142b1
2.3
0.7
0.3
3 142 0.35
0.14
0.11
126 10 B 0.5 Octave 80 99 20 75 2
Added 4/7/06
Icom
756 Pro II
-133
-138b
-141b1
2.1
0.65
0.26
3 138 0.32
0.15
0.11
124 10 B 0.5 Octave 80 98 20 75 2
Drake
R-7
-135
-140b
1.0
0.4b
3 145 0.28
0.15b
114 10 B 0.5 Octave 85 97 100 75 2
Drake
TR-7
-134 1.3 3 146 0.5 116 10 B 0.5 Octave 90 99 100 75 2
Heath
SB-104
-123 N.A.   92 0.5 N.A.   C Band Pass 75 79 20 75 4
WJ
HF-1000
-129
-136b
0.11 3 123 0.23
0.13b
115 10 D Wideband 80 99 20 75 5
Added 4/7/06
Icom
706MkIIG
-135
-140b
1.9
0.6
3
126 0.23
0.12
127 10 C Octave 80 87 20 74 2
Ten-Tec
Omni-B
-136 0.2 25 129 0.15 130 10 C Preselector 80 87 20 74 2
Icom
IC-730
-140 1.5 3 135 0.1 118 10 C 0.5 Octave 80 92 50 74 3
Kenwood
R-820S
-125 4.0 3 125 0.35 123 10 C Preselector 75 74 20 74 4
Collins
75-S3B
-146 1.1 15 122 0.1 120 4 B+ Preselector 85 88 20 74 2
Icom
IC-781
-127
-138b
2.0
0.5b
3   0.5
0.18b
129 10 B 0.5 Octave 90f 94 20 73 2
Updated 4/18/06
Stock 781
-128
-135b
2.4
0.7b
3 131 0.5
0.22b
    B 0.5 Octave 90 98 20 78 2
Updated 4/18/06
781 with Pin Diodes
-126
-134b
3.6
1.15b
3 134 0.54
0.21b
    B 0.5 Octave 90 98 20 72 2
Kenwood
TS-930S
-135 2.0 3 143 0.15 115 10 B- 0.5 Octave 80f 86 20 73 3
Icom
IC-701
-129 5.5 6 130 0.3 125 10 C Band Pass 75 81 50 73 4
Collins
75S-3C
-141 1.3 12 121 0.14 120 4 B+ Preselector 95 85d 20 72 2
Kenwood TS-480HX
Without CW Xtal Filter
-135
-143b
3.0
0.6b
3 142 0.28
0.11b
121 10 B 0.5 Octave 80f 99 20 72 3
JRC
NRD-525
-132a 0.9 3 123 0.2 120 10 B Trk Presel 65 95 50 72 5
Updated 4/13/09
Yaesu FT-1000
MP MKV Field
Inrad roofing filter mod
-133b 3.0b 3 135 0.2b 128 10 B 0.5 Octave 90f 89 20 71k 2
Added 10/3/04
Icom
756 Pro
-127
-136b
-139b1
3.5
1.0b
0.5b1
3 132 0.55
0.21b
0.14b1
127 10 B 0.5 Octave 90 86 20 71 2
Drake
R-8
-128
-131ab
0.6
0.3
3 130 0.25
0.18b
115 10 C 0.5 Octave 75f 90
85b
20 71 5
Device
Under Test
Noise
Floor
(dBm)
AGC
Thrshld
(uV)

dB
100kHz
Blocking
(dB)

Sensitivity
(uV)
LO Noise
Spacing
(dBc/Hz)

kHz
Front End
Selectivity
Filter
Ultimate
(dB)
Dynamic Range
Wide Spaced
(dB)

kHz
Dynamic Range
Narrow Spaced
(dB)

kHz
Icom
IC-R72
-127
-135a
3.1
1.2b
3 129 0.28
0.11b
122 10 C 0.5 Octave 75 87b 20 71 5
Icom
R-9000
-131a 0.8 3 129 0.15 128 10 B 0.5 Octave 90 93 20 71 5
Added 2/27/04
Elecraft K2
s/n: 1140
-135 2.6 15 118 0.22 123 10 B Band Pass 80f 95 20 70 2
JRC
NRD-535
-135a 0.9 3 114 0.1 117 10 B Trk Presel 70 92 50 70 5
Kenwood
TS-830S
-136a 0.9 3 122 0.1 113 2 C Preselector 80 84 20 70 3
Icom
IC-761
-131
-139b
2.0
0.7b
3 145 0.4
0.17b
129 10 B- 0.5 Octave 90f 87 20 70 2
Added 4/16/06
Kenwood
TS-870S
-127
-137b
1.9
0.44b
3 137 0.5 121 10 C 0.5 Octave 90f 95 20 69 2
Added 10/3/04
Yaesu FT-1000
MP MKV Field
-133b 3.0b 3 135 0.2b 128 10 B 0.5 Octave 90f 88 20 69 2
Added 10/3/04
Yaesu
FT-1000 D
-128b1 6.0b1 3 >131 0.3b1 121 10 B 0.5 Octave 90f 90 20 69 2
Lowe
HF-150
-126a 0.7 3 126 0.3 113 10 F No Bandpass 75 84 20 69 5
Kenwood
TS-430S
-136a 0.6 3 134 0.1 102 10 C 0.5 Octave 70 78 20 69 5
Added 10/3/04
Yaesu
FT-1000 MP
-125
-134b
3.8
1.1b
3 >135 0.48
0.18b
128 10 B 0.5 Octave 90f 97 20 68 2
JRC
NRD-545
-130a 2.0 6 127 0.2 118 10 B 0.5 Octave 65 96 100 68 5
Signal/One
CX-11A
-122a 0.6 17 109 0.6 119 50 C 0.5 Octave 105 90 50 68 5f
Kenwood
TS-180S
-139 0.9 3 115 0.15 120 10 C Preselector 80 70 20 68 3
Drake
TR-4C
-124a 1.2 3 105 0.4 130 10 C Preselector 80 74 20 68 2
Icom
IC-735
-126
-133b
1.5 12 135 0.35
0.18b
123 10 C 0.5 Octave 90f 83 20 68 2
Added 1/21/04
Icom
IC-R75
-123a
-130b
3.5
1.3b
3 119 0.5
0.2b
109 10 B 0.5 Octave 80 95 50 67 5
Drake SW8 -127a 0.9 3 125 0.32 113 10 N.A. 70 92 20 67 5
Racal
6790 GM
-128 0.3 1 145 0.7 130 10 D Broadband 85 95 20 66 2
Device
Under Test
Noise
Floor
(dBm)
AGC
Thrshld
(uV)

dB
100kHz
Blocking
(dB)

Sensitivity
(uV)
LO Noise
Spacing
(dBc/Hz)

kHz
Front End
Selectivity
Filter
Ultimate
(dB)
Dynamic Range
Wide Spaced
(dB)

kHz
Dynamic Range
Narrow Spaced
(dB)

kHz
Lowe
HF-235
-126a 0.8 3 129 0.35 117 10 D Octave 80 71 20 66 5
AOR
AR3030
-131a 2.0 10 130 0.16 117 10 C 0.5 Octave 85 90 20 66 5
Yaesu
FRG-100
-133a 0.9 3 127 0.13 112 10 C 0.5 Octave 70 99 50 65 5
Kenwood
R-5000
-131a 0.4 3 134 0.2 120 10 C 0.5 Octave 80f 86 20 65 5
Added 2/27/04
Palstar
R-30
-123 2.6 3 130 0.35 116 10 C Octave 90 88 20 64 5
Yaesu
FRG-7700
-130a 1.3 3 123 0.2 100 10 D Octave 65 83 50 64f 5c
Kenwood
R-1000
-130a 0.9 3 119 0.2 107 10 D Octave 70 76 20 64f 3c
Heath
SB-303
-134 N.A.   104 0.5 N.A.   C Preselector 70 66 20 64 4
Collins
KWM-380
-127a 1.1 5 123 0.3 99 10 B 0.5 Octave 70f 94 50 64f 2
Icom
IC-751
-127
-133b
6.3 3 138 0.4
0.2b
127 10 B- 0.5 Octave 90f 84 20 64 2
Added 3/27/06
Icom 7000
-129
-139b
4.5
1.0
3 119 0.45
0.13
122 10 C Octave 65 90 20 63 2
Added 9/22/07
Yaesu FT-2000
-122
-132b
-140b1
5
1.3b
0.5b1
3 120 1.0
0.3b
0.14b1
122 10 B+ Bandpass
+ Trk
80f 81n
90o
20 63n
61o
2
Kenwood
TS-520
-139 N.A.   116 0.15 N.A.   C Preselector 70 63 20 63 3
Yaesu
FT-One
-135 1.0 3 130 0.2 99 10 C 0.5 Octave 80f 91 50 63f 2
Collins
75-S3 Wing
-145 1.0 14 105 0.1 N.A.   B Preselector 75 75 20 63 3
JRC
NRD-93
-141 1.6 3 128 0.15 133 10 A+ Trk Presel 80 94 20 63 2
Yaesu
FT-980
-136 1.8 3 140 0.12 106 10 C 0.5 Octave 62f 96 50 63 2
Icom
IC-R70/R-71A
-129
-135b
3.1
1.4b
3 132 0.4
0.2b
128 10 B- 0.5 Octave 90f 86 20 62 3
Grundig Satellite 700 -127a 1.6 3 106 0.3 118 10 N.A. 85 76 20 62 5
KWZ-30 -130 1.0 3 120 0.8 118 10 d 80 100 20 60 5
Collins
51S1
-134 1.0 7 117 0.13 146 10 A Trk Presel 100 84e 100 60 5
Icom
R-8500
-135a 0.45 3 132 0.11 131 10 B 0.5 Octave 75 81 20 59 5
Yaesu
FT-101E
-141 N.A.   102 0.15 N.A.   C Preselector 70 60 20 59 3
Drake
R-4C Stock
-139 0.7 3 130 0.15 144 5 A- Preselector 70 85 20 58 2
Yaesu
FT-757
-120
-134b
1.6 3 130 0.7
0.15b
109 10 C 0.5 Octave 70f 86 20 56 3
Ten-Tec
340
-123
-133b
0.5
0.13
3 109 0.4
0.14
113 10 B 0.5 Octave 70 93 100 46 5
Kenwood
R-2000
-130a 1.4 3 115 0.15 105 10 D Octave 70 71 20 45 5
Kenwood
R-600
-130a 0.8 3 109 0.2 99 10 D Octave 65 68 20 F.L.. 5
Yaesu
FRG-8800
-132a 0.6 3 122 0.18 N.A.   D Octave 70 87 20 F.L. 5
AOR
5000
-124
-130ab
0.9
1.8
3 118 0.2
0.35
103 10 B 0.5 Octave 60 58 50 f 5
Device
Under Test
Noise
Floor
(dBm)
AGC
Thrshld
(uV)

dB
100kHz
Blocking
(dB)

Sensitivity
(uV)
LO Noise
Spacing
(dBc/Hz)

kHz
Front End
Selectivity
Filter
Ultimate
(dB)
Dynamic Range
Wide Spaced
(dB)

kHz
Dynamic Range
Narrow Spaced
(dB)

kHz

Receiver Table Legend:
       
    3 dB blocking (gain compression) test done at 100 kHz to eliminate phase noise interaction
   F.L. = Filter limited, no measurement was possible due to signal leakage around filter
   N.A. = Data not available
       
a Measured with SSB filter
b Built-in Preamp actuated
b1 Built-in Preamp 2 actuated
b2 Built-in Preamp set at 20 dB. Adjustable to 10, 20 or 30 dB
c Readings would have been lower if 2-kHz spacing had been possible
d Dynamic Range is 90-dB at 100-kHz spacing
e 20-kHz Dynamic Range is 66-dB
f Measurement was Phase-Noise Limited = ARRL RMDR (Reciprocal Mixing Dynamic Range)
g Audio DSP Enabled
h AGC Off
i At 1 kHz dynamic also 95 dB but with 300 Hz roofing filter enabled
j At 1 kHz, noise limited to 68 dB
k At 1 kHz dynamic range was 66 dB
l (lowercase L) Reserved
m Receiver was optimized by Malcom Technical Support for best dynamic range
n Measured with 3 kHz roofing filter
o Measured with 6 kHz roofing filter
p with 200 Hz 5-pole filter
q with 400 Hz 8-pole filter
r with 500 Hz 5-pole filter
s Using ARRL 3-Hz bandwidth blocking method
t with optional roofing filter
u without optional roofing filter
v At 1 kHz performance is opposite sideband rejection limited
w At 1 kHz dynamic range is 104 dB
x "Long Form" report available by e-mail request.
2-kHz RMDR: 6M=91dB, 10M=92dB, 12&15&20M=87dB, 17M=85dB, 30M=98dB, 40M=92dB, 80M=94dB & 160M=95dB
y DR3=108 dB with 20 dB Preamp ON. (99 dB Preamp OFF) Otherwise dynamic range independent of signal spacing.
NOTE: This data does NOT imply you should generally run the preamp! This is a testing anomaly of a direct-sampling receiver.
6 6 meter data, preamp ON


Sherwood Engineering Incorporated Sherwood Engineering Incorporated
1268 South Ogden Street Denver, Colorado 80210 USA
email     Phone:
303-722-2257     FAX: 303-744-8876
9 a.m. - 5 p.m. MST Monday - Friday

Updated 12 April 2008