I really would have though the Jupiter would be better -- it probably
is in real life with better preselection/LPF. The intercepts for the
RX320 are not very impressive.
ARRL RX320 review:
Minimum discernible signal (Noise floor), 500 Hz filter Frequency
1.0 MHz -117 dBm
3.5 MHz -133 dBm
14 MHz -134 dBm
Blocking dynamic range, 500 Hz filter
3.5 MHz 111 dB*
14 MHz 109 dB*
Two-tone, third order IMD dynamic range, 500 Hz filter
3.5 MHz 84 dB*
14 MHz 82 dB*
Third-order intercept
3.5 MHz -7.4 dBm
14 MHz -10.7 dBm
Second-order intercept
-29 dBm
ARRL Jupiter review:
SSB/CW sensitivity, 3 kHz bandwidth, 10 dB S/N: 0.35 ÎV. Noise floor
(MDS), 525 Hz bandwidth:
1.0 MHz â121 dBm
3.5 MHz â127 dBm
14 MHz â135 dBm
Blocking dynamic range: Not specified.
Blocking dynamic range, 525 Hz filter:
3.5 MHz 113 dB
14 MHz 123 dB*
Two-tone, third-order IMD dynamic range: Not specified.
Two-tone, third-order IMD dynamic range, 525 Hz filter:
3.5 MHz 87 dB
14 MHz 85 dB*
Third-order intercept: claimed +10 dBm.
3.5 MHz +11 dBm
14 MHz +7.3 dBm
Second-order intercept: Not specified.
Second-order intercept: +53.6 dBm.
* == Measurement was noise-limited at the value indicated.
On Oct 2, 2007, at 6:35 PM, Carl Moreschi wrote:
> The receiver is
> actually almost the same as the Jupiter receiver without the bells and
> whistles.
>
> 73,
>
> Carl Moreschi N4PY
--
Kevin Purcell
kevinpurcell@pobox.com
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