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 Before you put the cervical cap over the cervix (opening to the uterus), a spermicide cream, foam, gel, or jelly should be put into the cup of the cervical cap. 2  Follow the manufacturer's directions on how long before sexual intercourse you may apply the spermicide.