[NLRS] GPS and RTK

[Donn, WA2VOI]

Before making any decision, I suggest you need more information as to exactly 
which RTK systems they are planning on using.  Are they looking at using your 
tower to improve the range of an unlicensed (i.e., 869/900MHz, 1/0.5w 
transmitter) or a licensed 460MHz business-band system (20 W or more) ?  How 
much operating do you do/expect to do on 432MHz ?  432 EME ?  440 MHz FM ?  If a 
lot, maybe you should politely refuse.  (Especially for EME !)  On 902/903, 
again, you might need a bit more information.  Where in the band, exactly, is 
the TX operating.  Far enough away that a filter will solve the possible 
overload problem.

Also, what is the time usage of the system ?  I'm guessing that its use is for 
field work; does that mean or imply spring (planting) daytime hours, mid-season 
(weed control) daytime, and fall harvest time.  Can it be turned off when "not 
in use ?"  If so, who controls the on-off ?

Will the good will generated by the useage of you tower be worth whatever 
"problems" they system will cause ?  Or, put another way, will the ill-will 
cause by saying NO without really good reasons be worth the enhanced operating 
conditions ?

Either way, good luck !

73 Donn
WA2VOI/0

----- Original Message ----- 
From: "Arliss" <w7xu at w7xu.com>
To: <nlrs at mailman.qth.net>
Sent: Friday, June 13, 2014 3:10 AM
Subject: [NLRS] GPS and RTK


>
>
> Hi,
>
> A couple of my farmer neighbors have asked me if I would allow placement of an 
> RTK transmitter on one of my towers.  I'm wondering if anyone here has had any 
> experience with this and/or has any knowledge regarding the potential for 
> interference to my ham station.  At this point, I'm not even sure what 
> frequency the RTK unit operates on.
>
> Thanks & 73,
>
> Arliss  W7XU
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