Jim:
Tequipment.net put the RIGOL DS1000E on sale earlier this year. It's a
100 MHz general purpose scope which I really enjoy using. It has a
very nice complement of features and capabilities. I set the scope on
the middle of the van's dash on a non-slip cover that keeps it stable.
It's 120 Vac powered by an inverter in the truck.
I use a fairly decent "no name" 1500 watt inverter wired directly to
the vehicle battery. The inverter provides AC power for the scope and
other devices I use during my work day. When I first installed the
inverter I did note some grass on the scope caused by the inverter. I
wound the AC power cord that runs to the scope through a pair of 2.5
inch type 31 donuts and that eliminated the visual and audible hash.
The AM/FM radio in the work van is not affected by ignition noise at
all. I presume it has the world's most effective noise blanker. As a
result I see no ignition artifacts on the scope display. I typically
search with the AM radio tuned to 1710 with the scope displaying the
radio's audio output with enough headroom on the display. The scope
display makes a very good signal strength indicator. This combo will
usually get me within spitting distance. If I can hear the subject of
my search on the IC-7000 I'll use the signal strength meter of that
radio to get me closer. If I can hear the subject on 50 MHz or 144 MHz
I can usually hear it on the Radar Engineers M330 handheld. That unit
will show me which pole or house or building I need to closely
examine.
73,
Frank N. Haas KB4T
Utility RFI Investigator
Florida
On Mon, Dec 24, 2012 at 6:37 PM, Jim Brown <jim@audiosystemsgroup.com> wrote:
> On 12/24/2012 10:17 AM, Frank N. Haas KB4T wrote:
>>
>> I use a 100 MHz RIGOL (brand) oscilloscope connected to the work van's
>> AM radio speaker audio output to get close to, but not necessarily
>> right on top of, a .5 to 1.7 MHz source.
>
>
> I just bought a Rigol 1102E 100 MHz scope, but it's 120VAC powered. Is yours
> also AC powered? If so, how do you run it in your vehicle?
>
> 73, Jim K9YC
>
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