[Test-Equipment] Spectrum Analyzer

[Pete Lancashire]

Phew .. I feel vindicated :-). I've never had a low/middle end SA, I've
always had a DC block attached for everyday measurements.



On Thu, Dec 24, 2015 at 7:46 PM, Steve <k0xp at k0xp.com> wrote:

> At 10:15 PM 12/24/2015, Fuqua, Bill L wrote:
>
>>    The 2712 is AC but many have Tektronix Spectrum Analyzers have DC
>> coupling since they go down to 100Hz. 494, 495,2794 and others are DC
>> coupled and
>> do require extra care.
>>
>
> Si. If it's just down into the MHz at the low end, it's likely AC coupled.
> But if its rated down into the kHz or especially Hz, it's likely DC coupled
> and worthy of extra consideration.
>
> Either way, since I blew a 8569B front end out way back in my youth some
> 40 years ago, I've learned to take extra precautions against possible
> overload, and blowout. I now start out with the internal attenuator at 40
> dB, and recognize that may not be enough in the case of a 1 Watt amplifier.
> I never like to stress my measurement equipment over a tenth of their
> capability, it's so hard to get the boss to pay fer replacement and
> calibration when I make a mistake. Oncit upon a day, in the moon-seeking
> days, we had the liberty to explore those expanses of our measurement
> capabilities. Today, no longer, it's on coorporate expense to perform such
> exploration.
>
> Bah, humbug. America has lost.
>
> SteveH, K0XP
> ______________________________________________________________
> Test-Equipment mailing list
> Home: http://mailman.qth.net/mailman/listinfo/test-equipment
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Test-Equipment at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>