Our antennas are amplified external GPS antennas. Garmin's built in antennas are not amplified, and when tested side by side with Garmin's external antenna, ours significantly outperform the Garmin antenna, yielding an average of 28 dB signal gain compared to about 16 dB gain from Garmin's antenna.
First of all it is hard to determine if a cervix is ripe or not. Different people observing can have very different opinions on the ripeness of a same cervix. There is the Bishop system for evaluating the cervix, but even this one isnât very accurate.
1 Our C46 Kefir is easier to do this with than the C45 Kefir culture.  This is then covered allowed to ripen at room temperature (68-72F) for 8 to 18 hours or more depending on the character you would like in your Kefir. Longer time and warmer temps will make a more tangy tasting Kefir.