dBm is a measure of signal strength. NM is an adjustment to the dBm based on how much signal is needed for a TV to decode the signal.
Azimuth is where the signal is coming from around the compass. Multiple signals being on the same azimuth is good, it makes reception easier.
Approximate OP’s location at 25’
http://www.tvfool.com/?option=com_wr...ec2fc6585684ed
Approximate OP’s location at 40’
http://www.tvfool.com/?option=com_wr...ec2fc63b185765
K36IJ-D and K30JE-D are both Hawaii Public Television (as is K34IS-D). The OP only needs to receive one of them.
Height does not appear to improve the number of available stations. The OP’s neighborhood seems to be blocked by a ridge to the east and a high area to the south.
Any non-amplified UHF antenna pointed at 224 degrees magnetic with some height should work if the path to the transmitters is not obstructed. K32IX-D and K30JE-D appear to be licensed as transmitting from the same antenna and they are close in channel, so at the OP’s residence if an antenna location works for one it should work for the other. Since they are on the same heading a directional antenna could be used.
There are no VHF stations at the OP’s location, so the size of a VHF antenna is probably not called for. The only VHF station sort of nearby (93.4 miles) is KHET, which is available on UHF translators.
K34IS does not appear to have a usable NM even at 500’.
If I lived where the OP lives, I would look at what antennas are available from nearby, then see what people on TV fool thought about the options. I imagine it would be best to avoid paying for shipping anything in.
If I had to order something I would look to see if the dimensional weight or the actual weight was going to drive the shipping cost and choose an antenna from there. For example, a winegard 4400 antenna ships in the same size box as an 8800, and both are light so the long box will drive the shipping cost. A 4400 would be enough antenna to get K32IX-D and K30JE-D but given the shipping would be the same, I would order an 8800.
If the line of sight to the transmitters for K32IX-D and K30JE-D is clear, a dipole cut to channel 31 on a 10’ pole in the backyard would probably get all the stations and sub channels the OP is likely to receive.
If rabbit ears is correct about what is (will be?) on K32IX-D and K30JE-D, all that will be available OTA at the OP’s location is:
NBC
Antenna TV
Grit
PBS
Create
NHK World
http://www.rabbitears.info/market.ph...callsign=K32IX