There was an earlier post on QRP (low power - 10 watts or so) Sometimes 10 watts just won't make it. So - what can you to get by today? More power? HF Linear Amplifier :: HL-45B - 160m~10m (45w) Toyko Hi power ~50 watt designed for the FT-817. 440 USD new, under 300 USD used Yaesu FL110 100 watt amplifier, sold with the FT 7 years ago About 300 USD for a nice unit Build your own - 35 watts - 229 USD HF Projects - HF Packer-Amp V4 Build it yourself starting with just a cicuit board and get your own parts rfpa2.htm WA2EBY Amplifier Revisited The Amateur Radio Service is allowed to use up to 1Kw (1500 W PEP) but bigger isn't always better. At the low end, booster a SGC-2020 or an FT-187 QRP rig to 50 watts will add a lot of fun, aftr that, you should just consider a 100Watt radio set - too many to even discuss here. Once past that, an 800 to 1500 watt amplifier will burn through pile ups and so on. The down side is the problems this level of power can make for operators. FRI.EMI issues and the sheer cost of the 220V power is something to consider. Years ago I ran a KWM-2 and 30L1 amplifier (500 to 800 watts) - it worked, but after a while, I found it too easy to knock off stations... So then went through a series of radios and now use a Ft-990 (great RX) and a SGC-2020 or FT-1817 for field work. Power amplifiers have a place - but in a disaster, the high power units eat masssive amounts of hard-to-come-by power, so the under 50 watters are something to look at for your 'after' radio station. The links about should give you something to think about. Have fun!