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.
They recommend the use of PGE2 vaginally or inside the cervix in the form of a gel. The use of prostaglandins is safer to ripen the cervix than the use of pitocin alone to start labor on an unripe cervix, although they can all increase the pain during contractions.
The first thing you need to know is when the apples are ripe. Not all varieties ripen at the same time. Here in Zone 5, the earliest apples like 'Lodi' may be ready to pick in July, while 'Granny Smith' doesn't ripen until November. So it's important to know what varieties you are growing and what they are supposed to look like when ripe.