I am one who believes first in K.I.S.S. then punt.
Dale, k9vuj
On 23, Sep 2014, at 6:21, CR <ka5s@earthlink.net> wrote:
> Let's not get too focused on which receiver has the best sound or S-meter; MY
> RFI hunting has almost all been with loops or yagis -- and by ear. Often
> enough, for the last few hundred meters or so, I've used a homemade loop
> mounted on a scanner such as a VR-500. For the loops I mean, see the
> examples in figure 2 at
> http://www.edn.com/electronics-blogs/emc-emi-rfi-esd/4378152/An-EMC-Troubleshooting-Kit--Part-1a-Emissions-
>
> FWIW department; I could use a FS receiver or spectrum analyzer, but once
> outside a lab, things are usually too messy to make them worth hauling
> around. I once used my AOR AR-5000 for some tests, and dragging that over
> grass with batteries and an EMCO loop on a cart was no fun.
>
> If you REALLY need an objective relative measurement, perhaps an RMS meter on
> your receiver's audio output (ideally with AGC off) might be the best way to
> get one. Using a product detector, the output is almost exactly proportional
> to the input -- but be wary of saturation and overload. The rest of the time,
> IMO, the ears have it.
>
> Cortland
> KA5S
>
> On 9/22/2014 8:13 PM, qrv@kd4e.com wrote:
>> Is it possible to get at that switch & create a flat
>> setting? (Add another switch which interrupts the High wire
>> to add a High/Flat choice? I'm guessing they are adding or
>> removing a cap - so adding a 1/2 value cap should = Flat.)
>>
>> Someone mentioned needing to pull the batteries if left
>> sitting, which I'm guessing could be solved via a micro-switch
>> somewhere in the battery-to-radio line.
>>
>> WDYT?
>>
>> David KD4E
>>
>
>
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