A/C Power supply

[222FL]

A 15-20 amp power supply should be ample for the radio. Megawatt makes a pretty good switching power supply, the S400-12, it's 36amps. They cost about $60. Go to megawatt.com and check them out. Built in the US, and have 2yr warranty. Also they don't have any hash as far as I have noticed anyway. I use one with an Icom 746 and it runs its fine @ 100w no problem. Again, no hash that I have found either.
As for a base antenna, not sure what you are trying to accomplish. You want a vertical or a beam antenna. For vertical the Sirio Vector 4000 is a great antenna as long as you don't live in a high wind area. If this is the case there are other antennas as well, the Sirio 2016, 827, the Gain Master, and also other antennas. The shockwave antenna made in the US, is a sweet antenna, but it's expensive. Same with the I10k or Mr. Coily antennas as well. The ones I listed are all 5/8 wave antennas or close to 5/8 wave minus the vector 4000 which is a 7/8 wave antenna.
There are many more antennas I could name that would work as well, but I am a big fan of fiberglass. Some like the the IMAX 2000. Not a bad antenna. Like I said. I just like aluminum better.
I am currently using a Sirio vector 4000 that is up 26ft to the base of the antenna. Tip height is around 54ft with the antenna being around 28ft long. I can talk consistently out to about 70 miles locally no issues, and when it's quiet as far as floor noise goes I can reach the west coast of FL, from Daytona to Tampa, which is about 130 miles or so. And that is with about 50w of power being used on SSB. Could probably use less and still make the trip, but it never hurts to have a little more than 12w at times.
Now there are beam antennas as well that will work very well if setup right. A 3 element beam or even a quad type antenna with dual polarity, meaning it has both horz, and vert., capabilities work very well. Get most any decent antenna off the ground as high as possible and use good coax and connectors. Also a good ground system and a surge arrestor, a low pass filter, and a good ground system, as well as tuning the antenna properly all help your setup be as good as it can. I am sure I missed something, but there is enough here to at least get you started. As far as power supplies go, any good 20 amp supply should be about right for that radio. I would look into something a little bigger than 20A just to have good headroom and also the option to add other things to it. Again, I've had very good luck with the megawatt power supply i have. Had it for about 3yrs now and it still performs like when I purchased it. Set to 13.8v with 30+ amps of power I have never had an issue with it and like I said, I use an HF radio with it. Also great customer service. Not saying that a different supply won't work, just giving my experience with ones I have used. Stay away from the pyramid supplies! Astron, Meanwell, megawatt, and some others all will work as long as you get one with proper amperage. I would look for something that will give you about 1.5 times the amps needed. So if your radio draws 15A, a 20-25 amp supply min. Is what I would look for. And also stay away from the cheap power supplies as well as they don't have good filtering and may cause some unwanted noise. These are JMHO. Hope all this helps. Good luck with whatever you decide. Have a good one.