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.
At the start of the procedure, a speculum is inserted into the vagina in order to view the cervix, similar to a Pap smear. The cervix is cleaned with an antiseptic solution; then, a thin, plastic catheter, generally about the size of the tip of a pen, is placed inside the cervix.