You will notice the MA UHF Isolators drift
with heat a lot more than largers current
dual port products.
Instrument tuning is not the best option,
except maybe to get it in the ball park.
They are tuned just like dual port telewave
types. Never trusting one specific method,
I use both the typical under-power tune
method along with a tracking spectral
display.
One bad part about the MA units... you have
to make a call about the tuning, tune them
cold (at room temp) or tune them warm, depends
on the duty cycle of the transmitter. They
change value a lot more quickly than most
or all of the other brand circulators and
isolators I have/own/use.
The Decibel Products instructions are floating
around on the web...
cheers,
skipp
> Steve Rodgers <[EMAIL PROTECTED]> wrote:
> Does anyone have a tuning procedure they
> could share for the Microwave
> Associates 7R011T dual-stage UHF Isolator?
> I have 2 of these tuned on 454 and
> 462MHz. I've never attempted to tune
> isolators so any tips would be useful.
> Can these be tuned with a tracking
> generator/spectrum analyzer?
>
> Steve
> WA6ZFT
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