[RFI] Utility coming tomorrow to chase RFI

[Tom Thompson]

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 at 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
>
>
>