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.
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.