[aprssig] Antenna separation
winston at winston1.net
Sun Apr 30 09:35:36 EDT 2017
'Far apart' isn't always possible, but remember RF travels in waves, and
as such for every wavelength you will have nulls where the signal is
almost completely 0 as seen by another antenna with the same
orientation. By locating the antennas in each other's nulls on 2m you
can more or less completely negate the interference.
On 4/26/2017 8:20 PM, david vanhorn wrote:
> So, I'm about ready to push the button on this.
> I'll be limited by the location spots available, but I have one more
> I'm intending to have the FTM-350 running APRS, and the IC-7000
> running voice on 2m/440
> I know I should mount those antennas as far apart as possible, but
> given the 50W output of each, what is the minimum separation for the
> safety of the radios?
> It's almost certain to end up with the 7000 V/U on the front mount
> point, FTM-350 on the middle, and the 7000 HF antenna on the back.
> I know the APRS will still punch holes in my reception on the 7000
> VHF, but I'm hoping to minimize that. My main concern is not having
> the front ends damaged by the RF from the other radio.
> K1FZY (WA4TPW) SK 9/29/37-4/13/15
> aprssig mailing list
> aprssig at tapr.org
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