[Test-Equipment] HP-436A Power Meter

Thu, 26 Feb 2004 17:45:36 -0800

Gary,

I believe all HP Power Sensors are a thermister (sp?) or thermocouple
type device.  They are much more linear over a wide range of power then
diode detectors however at the low end of the range, there is a time
delay before you get an accurate reading.  This is normal.

73,
Bill - K6WLM

Gary Schafer wrote:
> 
> Be careful using a service monitor! Some of them put out much more power
> at other frequencies than the one you are set up on.
> 
> 73
> Gary  K4FMX
> 
> KL�S wrote:
> > Ditto what George said about low power sensors....I took a chance buying my
> > HP 8481D (the -70 dBm to -20 dBm model) on eBay....looked VERY hard at the
> > feedback the seller had and the kinds of things he had sold before, to
> > include several sensors.  Needless to say I was pretty apprehensive when I
> > first powered it up, starting at -127 dBm from the service monitor and
> > working my way up.  When I passed -70 dBm and didn't get a reading I started
> > to say "I told you so" until it finally kicked in about 2 dBm later....I
> > think the 436 will "hang onto" a signal once it has acquired it since I
> > could then move back down and get a reading at -70 dBm.   Phewwwwww!!!!
> >
> > 'Course all you can say about eBay is that there's nothing you can say about
> > eBay -- I got this unit as the only bidder for about $400....a similar unit
> > from another seller two days later had 25 bidders and went for $585 and the
> > day following that same seller offered another with a starting price of $500
> > and a Buy it Now of $700....all without the required attenuator.  Heck, you
> > can buy a refurbished one with a warranty AND the attenuator from Bell
> > Electronics (where I got my other sensor) for about $650.
> >
> > What  a world we live in.....
> >
> > 73 -- Dino KL�S/4
> >
> > _______________________________________________
> > Test-Equipment mailing list
> > [email protected]
> > http://mailman.qth.net/mailman/listinfo/test-equipment
> >
> 
> _______________________________________________
> Test-Equipment mailing list
> [email protected]
> http://mailman.qth.net/mailman/listinfo/test-equipment