[time-nuts] Designing an embedded precision GPS time

MLewis mlewis000 at rogers.com
Wed Nov 1 11:30:50 EDT 2017

Antenna is a Tallysman TW4722.

I'll try a different antenna later. If nothing else, right now I've got regular dropouts for failsafe testing...

> But I feel a better solution is a reliable holdover capability, which I should have anyway for failsafe.



On 01/11/2017 10:22 AM, Bob kb8tq wrote:
> Hi
> Ok, local RF interference sounds like a significant part of the problem. I would
> suggest that swapping antennas might make sense. Not all “super interference
> rejecting” antennas are created equal.
> Bob
>> On Nov 1, 2017, at 9:55 AM, MLewis <mlewis000 at rogers.com> wrote:
>> I'm also too close to that tall building that is reflecting the sats over the Bering Strait at me. It's a military computer site, which I thought would be pretty tight on stray RF, but it has antennas. I asked a friend who works there about my GPS issues and if RF from the site may be influencing things. He hesitated, then said "'Yes'. That's all I can say."
>> For first power up I had obtained an active antenna for multi-constellation and a pre-filter that "provides protection from near  frequency or strong harmonic interfering signals."

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