HI all, I'm looking to install a Yaesu FT 857D
Probably one of the screwdriver type antennas is your best all around option if you want to get the most out of the radio on the HF side + 6 meters.
As for the 2 meter/70 centimeter side, I've never had any issues with the Larsen brand antennas. Commercial grade stuff that'll easily outlast the amateur/consumer grade stuff. Specifically look at the Larsen NMO-2/70 line.
Larsen NMO-27. See above.
Larsen NMO-150-450-800. Good all around scanner antenna, unless you need low band. Plus, it'll match the style of the CB and dual band antennas.
in my car. does anyone have any suggestions for antennas, feed lines, power supply, ect. I want to be able to transmit HF with the FT 857.
Go with name brand NMO mounts. Permanent mount or go home. Drill the hole if you want it to work well and look professional. If you want to look like an amateur, go with mag mounts.
Stick with the commercial brands, not the Chinese made stuff, Tram, Browning, etc.
As for power, run ALL the power directly off the battery. Do NOT tap into existing wiring for anything other than ignition sense lines. For the number of radios you are going to install, and the current consumption of the 857, run a large gauge cable from the battery to where your radios will be installed. 6 gauge would be a good size. Fuse at the battery. Install a fused distribution block at the radios and connect your power there.
Again, don't use existing wiring unless you want noise and interference.