Don,
Here is the sensitivity chart for the VX-3R:
*Sensitivity*:3 µV for 10 dB SN (0.5-1.8 MHz, AM Radio)
3 µV for 10 dB SN (0.5-30 MHz, AM)
0.35 µV TYP for 12 dB SINAD (30-54 MHz, NFM)
1 µV TYP for 12 dB SINAD (54-76 MHz, NFM)
1.5 µV TYP for 12 dB SINAD (76-108 MHz, FM Radio)
1.5 µV TYP for 10 dB SN (108-137 MHz, AM)
0.2 µV for 12 dB SINAD (137-140 MHz, NFM)
0.16 µV for 12 dB SINAD (140-150 MHz, NFM)
0.2 µV for 12 dB SINAD (150-174 MHz, NFM)
1 µV TYP for 12 dB SINAD (174-225 MHz, NFM)
0.5 µV for 12 dB SINAD (300-350 MHz, NFM)
0.2 µV for 12 dB SINAD (350-400 MHz, NFM)
0.18 µV for 12 dB SINAD (400-470 MHz, NFM)
1.5 µV for 12 dB SINAD (470-540 MHz, WFM)
3 µV TYP for 12 dB SINAD (540-800 MHz, WFM)
1.5 µV TYP for 12 dB SINAD (800-999 MHz, NFM)
Tom
On 6/7/2014 2:07 PM, qrv@kd4e.com wrote:
Tom,
How is the AM sensitivity Low-VHF and up?
Any AGC or other insummountable fixed settings that
might make it a poor choice for RFI-hunting?
Thanks - David KD4E
Don,
The VX-3R has an HF sensitivity of 3 uV on AM which is equivalent to an
S-5 signal. Couple that with the reduced antenna factor of a portable
antenna, you might not be able to hear anything but very strong RFI.
Tom W0IVJ
On 6/7/2014 1:16 PM, ac2ev wrote:
Does anybody have settings that work for the Yaesu VX-3R. It's all
mode receive and can use either the built in bar antenna or external
in AM but so far I can't get it to hear the RFI in the noise.
73
AC2EV - Don
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