Cockpitbob has a good point. These days most hams put too much emphasis on their transceiver because that part of their station is plug and play. In the old days the rule was spend 60% of your budget in the radio gear and 40% on the antenna. HOA and antenna restrictions cause problems for hams in newer subdivisions. You have to consider younger hams and the limitations they have living in apartments.
When you talk about the Voyager, consider the gain of the earth antennas. NASA used the VLA system to complete the mission. The VLA system has about 200Db of gain. With the VLA you can hear a cell phone on Jupiter.
Portable opps makes for a totally different conditions. When you consider the VHF and UHF bands where portable opps goes you can do just about anything, handheld antennas, rover stations, that kind of thing.
The Hf bands just require so much more antenna due to the wavelengths involved. When you compact the antennas you lose bandwidth. I sum up antennas with this statement, most antennas longer that 1/4 wavelength can have gain, any antenna smaller than 1/4 wavelength loses signal and bandwith.
You are right hams think they need too much power and because of that are "polluting their own world". I just don't see the need for any ham to use an amp over 500 watts. If the band is open, make the contact per the rules, with minimum power needed.
When I use my Icom 703 or Tentec Argosy people are so amazed I can make a contact at all. QRP CW stations are kind'a common, but low power SSB stations are a real minority.
When you talk about the Voyager, consider the gain of the earth antennas. NASA used the VLA system to complete the mission. The VLA system has about 200Db of gain. With the VLA you can hear a cell phone on Jupiter.
Portable opps makes for a totally different conditions. When you consider the VHF and UHF bands where portable opps goes you can do just about anything, handheld antennas, rover stations, that kind of thing.
The Hf bands just require so much more antenna due to the wavelengths involved. When you compact the antennas you lose bandwidth. I sum up antennas with this statement, most antennas longer that 1/4 wavelength can have gain, any antenna smaller than 1/4 wavelength loses signal and bandwith.
You are right hams think they need too much power and because of that are "polluting their own world". I just don't see the need for any ham to use an amp over 500 watts. If the band is open, make the contact per the rules, with minimum power needed.
When I use my Icom 703 or Tentec Argosy people are so amazed I can make a contact at all. QRP CW stations are kind'a common, but low power SSB stations are a real minority.