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QST Magazine Product Reviews - Key Measurements Summary -
HF-Transceivers or Receivers |
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Receiver |
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Subject of measurement, band: 14 MHz |
20 kHz reciprocal mixing dynamic range |
2 kHz reciprocal mixing dynamic range |
20 kHz blocking gain compression |
2 kHz blocking gain compression |
20 kHz 3rd-order dynamic range |
2 kHz 3rd-order dynamic range |
20 kHz 3rd-order intercept |
2 kHz 3rd-order intercept |
Transmit 3rd-order IMD |
Transmit 9th-order IMD |
Rx-Tx turnaround time (SSB tx delay) |
Price in USD (2012/2013) |
Company's site |
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Min/max of scale |
-60/-140 dBc |
-60/-140 dBc |
70/140 dB |
70/140 dB |
50/110 dB |
50/110 dB |
-40/+35 dBm |
-40/+35 dBm |
-20/-35 dB |
-20/-70 dB |
50/10 ms |
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Transceivers/receivers sorted by 2 kHz
3rd-order dynamic range. Please take
into account that there might be a difference in the numbers
when comparing the older product reviews (before February 2007)
compared to the later product reviews, due to changes in the
testing methodology, measurements filters, etcetera. |
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1 |
Yaesu FTdx5000D, December 2010 |
N/M |
N/M |
136 dB * |
136 dB * |
114 dB ** |
114 dB ** |
+41 dBm ** |
+40 dBm ** |
-43 dB #** |
-72 dB #** |
37 ms |
$5,399 |
www.yaesu.com |
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2 |
WiNRADIO WR-G31DDC, January 2012 |
N/M |
N/M |
128 dB |
128 dB |
107 dB |
107 dB |
+32 dBm |
+32dBm |
N/A |
N/A |
N/A |
$899 |
www.winradio.com |
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3 |
Elecraft K3, January 2009 |
N/M |
N/M |
142 dB ** |
140 dB |
106 dB |
103 dB |
+29 dBm |
+28 dBm |
-29 dB |
-51 dB |
12 ms |
$2,200 |
www.elecraft.com |
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4 |
Elecraft K3, April 2008 |
N/M |
N/M |
139 dB |
139 dB |
103 dB |
102 dB |
+26 dBm |
+26 dBm |
-27 dB |
-53 dB |
22 ms |
$2,200 |
www.elecraft.com |
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5 |
Kenwood TS-990S, February 2014 |
-117 dBc |
-87 dBc |
138 dB |
133 dB |
112 dB ** |
101 dB |
+44 dBm ** |
+35 dBm |
-31 dB |
-57 dB |
18 ms |
$8,000 |
www.kenwood.com |
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6 |
Yaesu FTdx3000, April 2013 |
-106 dBc |
-82 dBc |
137 dB * |
127 dB |
110 dB |
100 dB |
+40 dBm ** |
+23 dBm |
-27 dB |
-52 dB |
34 ms |
$2,699 |
www.yaesu.com |
NEW |
7 |
SSB Electronic ZEUS ZS-1 |
-128 dBc |
-120 dBc |
129 dB |
129 dB |
105 dB |
100 dB |
+31 dBm |
+31 dB |
-34 dB |
-60 dB |
68 ms |
$1,700 |
www.ssb.de |
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8 |
Elecraft KX3, December 2012 |
-120 dBc |
-114 dBc |
130 dB |
128 dB |
103 dB |
100 dB |
+34 dBm |
+34 dBm |
-30 dB |
-55 dB |
30 ms |
$999 |
www.elecraft.com |
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9 |
FlexRadio FLEX-5000A, July 2008 |
N/M |
N/M |
123 dB |
123 dB |
99 dB |
99 dB |
+35 dBm |
+30 dBm |
-34 dB |
-54 dB |
29 ms |
$2,799 |
www.flexradio.com |
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10 |
TenTec 599AT Eagle, August 2011 |
N/M |
N/M |
136 dB |
121 dB |
98 dB |
98 dB |
+22 dBm |
+22 dBm |
-28 dB |
-48 dB |
16 ms |
$1,795 |
www.tentec.com |
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11 |
Kenwood TS-590S, May 2011 |
N/M |
N/M |
141 dB ** |
126 dB |
106 dB |
97 dB |
+26 dBm |
+22 dBm |
-29 dB |
-52 dB |
14 ms |
$1,649 |
www.kenwood.com |
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12 |
Perseus SDR, December 2008 |
N/M |
N/M |
129 dB |
129 dB |
100 dB |
97 dB |
+35 dBm |
+35 dBm |
N/A |
N/A |
N/A |
$999 |
www.microtelecom.it |
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13 |
TEN-TEC 539 Argonaut VI, August 2013 |
N/M |
N/M |
N/M |
N/M |
96 dB |
96 dB |
+20 dBm |
+20 dBm |
-30 dB |
-51 dB |
20 ms |
$995 |
www.tentec.com |
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14 |
Icom IC-7700, October 2008 |
N/M |
N/M |
125 dB |
102 dB |
106 dB |
95 dB |
+35 dBm |
+24 dBm |
-28 dB |
-53 dB |
15 ms |
$7,179 |
www.icomamerica.com |
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15 |
TenTec Orion-II, September 2006 |
N/M |
N/M |
136 dB |
136 dB |
92 dB |
95 dB |
+20 dBm |
+21 dBm |
-28 dB |
-52 dB |
30 ms |
$4,295 |
www.tentec.com |
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16 |
Flex-3000, Oct/Nov 2009 |
N/M |
N/M |
113 dB |
113 dB |
99 dB |
95 dB |
+28 dBm |
+26 dBm |
-30 dB |
-45 dB |
48 ms |
$1,699 |
www.flexradio.com |
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17 |
Icom IC-7410, October 2011 |
N/M |
N/M |
143 dB ** |
111 dB |
106 dB |
88 dB |
+29 dBm |
+5 dBm |
-30 dB |
-61 dB |
45 ms |
$1,949 |
www.icomamerica.com |
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18 |
Icom IC-7600, November 2009 |
N/M |
N/M |
122 dB |
102 dB |
106 dB |
88 dB |
+31 dBm |
+13 dBm |
-31 dB |
-48 dB |
13 ms |
$4,976 |
www.icomamerica.com |
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19 |
Icom IC-9100, April 2012 |
-101 dBc |
-77 dBc |
142 dB ** |
111 dB |
108 dB |
87 dB |
+29 dBm |
+2 dBm |
-29 dB |
-64 dB |
61 ms |
$3,650 |
www.icomamerica.com |
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20 |
Icom IC-7800 V2, March 2007 |
N/M |
N/M |
144 dB ** |
117 dB |
108 dB |
86 dB |
+38 dBm ** |
+22 dBm |
-32 dB |
-52 dB |
15 ms |
$12,499 |
www.icomamerica.com |
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21 |
FlexRadio FLEX-1500, December 2011 |
N/M |
N/M |
107 dB |
107 dB |
100 dB |
86 dB |
+31 dBm |
+13 dBm |
-22 dB |
-48 dB |
200 ms |
$649 |
www.flexradio.com |
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22 |
Yaesu FTdx9000MP, July 2010 |
N/M |
N/M |
137 dB |
102 dB |
99 dB |
85 dB |
+28 dBm |
+7 dBm |
-37 dB #** |
>-75 dB #** |
32 ms |
$11,629 |
www.yaesu.com |
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23 |
TenTec R4020 QRP, February 2011 |
N/M |
N/M |
N/M |
N/M |
84 dB |
84 dB |
-10 dB |
-10 dBm |
N/M |
N/M |
N/M |
$249 |
www.tentec.com |
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24 |
Yaesu FTdx1200, January 2014 |
-104 dBc |
-81 dBc |
132 dB |
123 dB |
101 dB |
83 dB |
+31 dBm |
+4 dBm |
-32 dB |
-50 dB |
38 ms |
$1,600 |
www.yaesu.com |
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25 |
TenTec Omni-VII, July 2007 |
N/M |
N/M |
137 dB |
134 dB |
91 dB |
82 dB |
+11 dBm |
+6,5 dBm |
-27 dB |
-55 dB |
20 ms |
$2,695 |
www.tentec.com |
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26 |
Icom IC-R9500, January 2008 |
N/M |
N/M |
144 dB ** |
109 dB |
5kHz/92 dB |
81 dB |
+32 dBm |
-4dBm |
N/A |
N/A |
N/A |
$17,000 |
www.icomamerica.com |
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27 |
Yaesu FTdx9000C, March 2006 |
N/M |
N/M |
128 dB |
97 dB |
101 dB |
78 dB |
+35 dBm |
+1 dBm |
-34 dB # |
-80 dB #** |
35 ms |
$5,779 |
www.yaesu.com |
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28 |
Yaesu FT-450D, November 2011 |
N/M |
N/M |
134 dB |
88 dB |
97 dB |
76 dB |
+16 dBm |
-21 dBm |
-25 dB |
-50 dB |
17 ms |
$999 |
www.yaesu.com |
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29 |
Yaesu FT-950, March 2008 |
N/M |
N/M |
128 dB |
98 dB |
95 dB |
71 dB |
+21 dBm |
-4 dBm |
-35 dB |
-56 dB |
25 ms |
$1,449 |
www.yaesu.com |
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30 |
Alinco DX-SR8T, June 2011 |
N/M |
N/M |
100 dB |
83 dB |
94 dB |
70 dB |
+1 dB |
-30 dBm |
-28dB |
-53 dB |
50 ms |
$519 |
www.alinco.com |
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31 |
Yaesu FT-2000D, October 2007 |
N/M |
N/M |
136 dB |
87 dB |
98 dB |
69 dB |
+26 dBm |
-16 dBm |
-41 dB #** |
-65 dB # |
37 ms |
$3,549 |
www.yaesu.com |
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32 |
Icom IC-7200, June 2009 |
N/M |
N/M |
140 dB |
83 dB |
99 dB |
67 dB |
+23 dBm |
-11 dBm |
-32 dB |
-58 dB |
30 ms |
$1,396 |
www.icomamerica.com |
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33 |
Yaesu FT-450, December 2007 |
N/M |
N/M |
134 dB |
90 dB |
97 dB |
67 dB |
+13 dBm |
-31 dBm |
-30 dB |
-48 dB |
40 ms |
N/A |
www.yaesu.com |
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34 |
Yaesu FT-2000, February 2007 |
N/M |
N/M |
126 dB |
92 dB |
95 dB |
64 dB |
+16 dBm |
-22 dBm |
-32 dB |
-60 dB |
27 ms |
$2,819 |
www.yaesu.com |
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35 |
Icom IC-7000, May 2006 |
N/M |
N/M |
112 dB |
86 dB |
89 dB |
63 dB |
+6 dBm |
-27 dBm |
-33 dB |
-58 dB |
12 ms |
$1,299 |
www.icomamerica.com |
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Transceivers/receivers sorted by 2 kHz 3rd-order dynamic range.
Please take into account that there might be a difference in the
numbers when comparing the older product reviews (before
February 2007) compared to the later product reviews, due to
changes in the testing methodology, measurements filters,
etcetera. |
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Subject of measurement, band: 14 MHz |
20 kHz reciprocal mixing dynamic range |
2 kHz reciprocal mixing dynamic range |
20 kHz blocking gain compression |
2 kHz blocking gain compression |
20 kHz 3rd-order dynamic range |
2 kHz 3rd-order dynamic range |
20 kHz 3rd-order intercept |
2 kHz 3rd-order intercept |
Transmit 3rd-order IMD |
Transmit 9th-order IMD |
Rx-Tx turnaround time (SSB tx delay) |
Listprice in USD (2011/2012) |
Company's site |
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Min/max of scale |
60/140 dB |
60/140 dB |
70/140 dB |
70 - 141 dB |
50/110 dB |
50/110 dB |
-40/+35 dB |
-40/+35 dB |
-20/-35 dB |
-20/-70 dB |
50/10 ms |
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* = Blocking exceeded the levels indicated |
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** = Below/above measurable levels |
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# = Class A operation |
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$ = Listprice in US according to Elecraft, FlexRadio, TenTec and
Universal Radio |
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N/M = Not measured |
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Please take into account that there might be a difference in the
numbers when comparing the older product reviews (before
February 2007) compared to the later product reviews, due to |
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changes in the testing methodology, measurements filters,
etcetera. |
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Green = excellent |
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Light green = good |
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Yellow = average |
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Orange = moderate |
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Red = poor |
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Blocking gain compression: |
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When a very strong off channel signal appears at the input to a
receiver it is often found that the sensitivity is reduced. The
effect arises because the |
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front end amplifiers run into compression as a result of the off
channel signal. This often arises when a receiver and
transmitter are run from the same site and the transmitter
signal is |
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exceedingly strong. When this occurs it has the effect of
suppressing all the other signals trying to pass through the
amplifier, giving the effect of a reduction in gain. |
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Blocking is generally specified as the level of the unwanted
signal at a given offset (normally 20 kHz) which will give a 3
dB reduction in gain. A good receiver may be able to withstand
signals |
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of about ten milliwatts before this happens. |
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The blocking specification is now more important than it was
many years ago. With the increase in radio communications
systems in use, it is quite likely that a radio transmitter will
be |
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operating in the close vicinity to a receiver. If the radio
receiver is blocked by the neighbouring transmitter then it can
seriously degrade the performance of the overall radio
communications |
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system. |
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Reciprocal mixing dynamic range: |
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ARRL Lab reports three dynamic range measurements that determine
a transceiver’s overall performance. |
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Along with blocking gain compression dynamic range and two tone
third order dynamic range, we must consider RMDR while
evaluating how well a receiver hears. |
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Which of these measurements is the most important factor in
comparing receivers depends a lot on how you plan to use that
receiver. For hearing weak signals at or near the receiver’s
noise floor, |
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receiver noise typically is the limiting factor. For the
reception of stronger signals under crowded band conditions, two
tone third order DR is the most important number. |
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To assess a receiver’s ability to perform well in the presence
of a single, strong off-channel signal (common within
geographical ham radio “clusters” or with another ham on the
same block), |
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blocking gain compression DR is usually the dominant factor. |
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Reciprocal mixing is noise generated in a superheterodyne
receiver when noise from the local oscillator (LO) mixes with
strong, adjacent signals . All LOs generate some noise on each
sideband, |
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and some LOs produce more noise than others. This sideband noise
mixes with the strong, adjacent off-channel signal, and this
generates noise at the output of the mixer. |
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This noise can degrade a receiver’s sensitivity and is most
notable when a strong signal is just outside the IF passband.
RMDR at 2 kHz spacing is almost |
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always the worst of the dynamic range measurements at 2 kHz
spacing that we report in the “Product Review” data table. |
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3rd order dynamic range: |
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The difference in decibels between the weakest signal the
receiver can handle and the strongest signal the same receiver
can handle simultaneously, |
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- without the need of using additional controls of the receiver,
manually carried out by the operator - within 20 kHz (wide
spaced) and 2 kHz (close in) within the receiver's passband. |
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For more information on this important item, written by Rob
Sherwood NC0B, please use this link: http://www.sherweng.com/documents/Barc2008.pdf |
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3rd order intercept: |
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This more or less theoretical point, gives a good indication of
a receiver's overall strong signal performance. Third order
intercept is related to two-tone third order |
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IMD. When receiver's response on desired and undesired signals (within
the passband) were plotted in the same graph, the two lines
would intersect at a point called the third-order intercept. |
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Tx-Rx turnaround time: |
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The delay between receive and transmit, important for digital
modes. A transmit-to-receive delay of 35 ms or less in SSB
indicates that the rig is suitable for digital operation. |
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Transmit 3rd and 9th order IMD: |
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Transmit two-tone intermodulation distortion, or two-tone IMD,
is a measure of spurious output close to the desired audio of a
transmitter being |
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operated in SSB mode. This spurious output is often created in
the audio stages of a transceiver, but any amplification stage
can contribute** |
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If you have ever heard someone causing "splatter", the noisy
audio that extends beyond a normal 3 kHz nominal SSB bandwidth,
then you have heard the effects of transmit IMD. |
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Frequencies close to the transmit signal are affected the most,
but depending on the amount of IMD, large portions of the band
can suffer from one poor transmitter** |
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For more information (including what the numbers really mean)
please read ARRL's QST Magazine August 2004 very interesting
article on the pages 32-36. |
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v MAY.12.2014 |
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Please send me an e-mail (to: hans at pa1hr dot nl) if you have
corrections, remarks, etc. |
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Disclaimer: |
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The following applies to the page you are currently viewing. By
the page, you agree to this disclaimer. |
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This overview is provided for your convenience; it is a summary
of measurement figures and gives no indication of the ergonomics, |
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the features and/or the operational characteristics of the
transceivers/receivers. |
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The measurement figures in this overview are from the ARRL
Laboratory and published in QST. |
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This page is just a non-official overview, where no one should
draw any conclusions. |
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The overview on this page is written with the utmost care, yet,
PA1HR assumes no liability for any inaccuracies in the displayed. |
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I not responsible for the content in this overview, on this page
and/or companies referenced. |
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