In the spectrum analyzer screen, go the RF Gen menu, change from "fixed" to
"track" - output now tracks SA rather than being a fixed carrier. Change
the output port to "Duplex Out" as necessary.
--- Jeff WN3A
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Sid
> Sent: Saturday, December 12, 2009 9:59 AM
> To: [email protected]
> Subject: [Repeater-Builder] Re: HP E-8285A Service Monitor
>
>
>
>
> The one I got from Amtronix was setup for general frequency coverage
> of 1-1000 MHz and it appears to be really nice. I checked the
> freq against a rubidium freq standard I have and it is dead
> on. I especially like the spec anal function as you can
> select 1, 2 or 10 Bd display divisions. The only thing I have
> not figured out is how to turn on the tracking gen function.
> Anyone know?? Sid WA4VBC
>
> --- In [email protected]
> <mailto:Repeater-Builder%40yahoogroups.com> , Brian Raker
> <brian.ra...@...> wrote:
> >
> > The 892x had a 100w RX option if I remember correctly. Though, most
> > of the units you'll find (and the cheapest) will be 2.5w, especially
> > as CDMA-based cellphone development is starting to wind
> down in favor
> > of W-CDMA and LTE.
> >
> > -Brian
> >
> > On Fri, Dec 11, 2009 at 11:28 AM, Jeff DePolo <j...@...> wrote:
> > >> Pros over the 8924C: The display color CRT is replaced
> by a EL panel,
> > >> lower burn in. Duplex and Antenna connectors are N
> instead of BNC,
> > >> better frequency range (older units)
> > >>
> > >> Cons: Spectrum Analyzer Is Optional, No Squelch knob, No auto
> > >> frequency counter, 2.5W max input, does not decode DPL,
> LTR or EDACS.
> > >> Bigger than 8924C
> > >
> > >
> > > Just to clarify, the 8285A has a frequency counter and
> will still show
> > > frequency error, but it doesn't auto-count frequency like
> the 892x does.
> > > For example, if you're tuning up a transmitter for
> 147.300 MHz, you have to
> > > enter 147.300 on the RF Analyzer screen, and then it will
> display the error
> > > relative to the frequency you've entered (such as +76 Hz).
> > >
> > > As far as the low-power (2.5 watt) max input, I don't
> think they can be
> > > upgraded to higher power like the 892x series, the input module is
> > > different. But you can ask Rick, he'd known for sure if
> there's any hope
> > > for upgrading.
> > >
> > > You can't go wrong for $600, as long as you don't plan on
> taking it out in
> > > the field very often as they aren't travel-friendly.
> > >
> > > --- Jeff WN3A
> > >
> > >
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> >
>
>
>
>
>
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>
>
