The 530W is a NAV/COM/GPS (WAAS), which is providing your transponder with a position source for ADS-B out. It also feeds the Dynon screen(s) with position data. You'll have a NAV antenna connected to a splitter that feeds the NAV and GS antenna connectors on the back of the 530.
And typically it's not a true splitter that's used - but actually a diplexer.
The difference is that the splitter is literally just a "T" connection that sends half the signal strength each direction, resulting in a lower quality signal for both end devices. A diplexer actually serves as a bandpass filter that captures most of the energy of a particular frequency range and blocks other frequency ranges. Since the localizer and glideslope are on different frequencies but come in on the same antenna, this works well and sends 80%-90% of the signal strength of the desired frequency to the desired output of the diplexer, which is then routed to your device. This gives a higher signal strength and better service.
Diplexers are, of course, more expensive than splitters - you get what you pay for.
Yes it DOES say that but unlike the Garmin 430/530 that has a serial AND ARINC 429 connections to the SV, the Garmin SL30 does not (only has a serial connection which will give you more accurate lateral info...see attached SL30 wiring diagram). It's my understanding NO glideslope info is passed over the serial connection only over a ARINC 429 connection. Can someone explain how the info from the 17 wires from the SL30 would be translated/transmitted to the SV please?
page 20 of the SL30 install manual will show you the serial connections (pins 3, 4 & 5) you need to the Dynon.
You need to configure the SL for serial output or none ( not sure which however most likely - None) . Been a while since I’ve installed an SL .
Yes, but the beauty of the SL30 is that it has 2-way communications with Skyview. You can select a frequency on Skyview and send it to the Standby Com or Nav on the SL-30, as well as displaying other data on the screen.