[time-nuts] GPS antenna gain
Brian Kirby
kirbybq at bellsouth.net
Thu Jan 15 01:45:40 UTC 2009
Can we clarify, you were using the DC blocks or were they power inserters ?
Brian
David McGaw wrote:
> Hello Gents (and Ladies),
>
> I am in a bit of a quandary. I have been using a Synergy Timing 3000
> GPS antenna in a test set-up for some time and recently got a VIC-100
> antenna, thinking that its greater spec-sheet gain (38dBi vs 25dB(i?)
> typical) would allow for a longer down-lead in the field if
> needed. Upon testing, the VIC-100 appears to have around 10dB LESS
> gain than the Timing 3000 and I would say is barely adequate on 25 ft
> of LMR-195! I used a switched attenuator pad with 2 DC blocks for
> the test and set each antenna to comparable SNR levels as indicated
> using TAC32 with an M12M-T. I have tried a second VIC-100 with the
> same results. Would anyone have an explanation for this?
>
> Thanks,
>
> David McGaw N1HAC
>
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
More information about the Time-nuts_lists.febo.com
mailing list