[NLRS] uW Tune up this Saturday

[Donn, WA2VOI]

Hi Jim.

The short answer is "yes and no."

Power measurement will be via a Bird Thu-line meter, so DC on the line is a 
don't care.
Frequency check connects to the frequency counter... and its AC ONLY.  If you 
have an external Bias T, we can simply remove the +V from it and that takes care 
of the problem.  Otherwise... sorry, no go!

73 Donn

----- Original Message ----- 
From: " Jim Froemke" <jim.k0mhc at earthlink.net>
To: "'Donn, WA2VOI'" <wa2voi at mninter.net>; "'NLRS'" <NLRS at mailman.qth.net>
Sent: Thursday, July 10, 2014 1:13 AM
Subject: RE: [NLRS] uW Tune up this Saturday


> Hi Donn. Thanks for doing this again this year.
> I'm planning to participate but am wondering if running +PTT through the
> transceiver IF cable will cause you any problems or is your power meter DC
> isolated?
> 73, Jim
> K0MHC
>
> -----Original Message-----
> From: NLRS [mailto:nlrs-bounces at mailman.qth.net] On Behalf Of Donn, WA2VOI
> Sent: Tuesday, July 8, 2014 12:15 PM
> To: NLRS
> Subject: [NLRS] uW Tune up this Saturday
>
>
>
> To follow up on Jon's note earlier ("NLRS Breakfast and uW Tune Up"), the
> kinds of things we'll try to measure:
>
> IF Radio:
> power out, Frequency, and
> Mic gain (or Data gain for WSJT, etc.) to provide clean  signals w/o
> splatter TX stability
>
> XVRTR:
> Frequency, power out, RX and TX gain
> TX Stability
> Pre-amp: NF (?)
> Cable losses
> Ant feed Return loss (but NOT gain -- no antenna range)
>
> System:
> Sun Noise
> Pwr amp output
> We also want to try to take a look at system degradation when multiple
> operating frequencies are in use at the same time and location.  What
> minimum freq seperation is needed; what effect, if any, does the use of XTAL
> vs PLL LOs have, etc.
>
> Try to remember to bring the manual(s) for your i.f. radios so we know how
> to access and change the mic gain/dat input gain settings.  Likewise for the
> Hi/Lo power settings.  Same kind of date is needed for your XVRTR to adjust
> the TX and RX gain settings.
>
> Bring your whole system, including tripod and DC power both for the sun
> noise measurements and system degradation.
>
> This can't be a "repair" session... that takes too much time per system.
> The best we can do is make minor adjustments and identify big problems so
> you can work on them later at home.
>
> See you then.  Hopefully, it will be a good morning/early afternoon
> (sunshine and a --mostly-- clear sky).
>
> 73 Donn
> WA2VOI/0
>
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