Got a little bit of knowledge under my belt and have three working home brew yagis to show for it . Of all the reading and web searches , a lot of emphasis has been placed on efficiency , losses and gain in the VHF , UHF bands . There is plenty of great advice to make sure I'm running the most efficient station for every dollar / watt . But...no where have I seen a simple comprehensive article that mentions how much " reactance " is considered safe and / or negligible in regards to antenna loads ? Seems most impedance's will always have some reactive component but how much is too much ? Should I be concerned over a few ohms ( i.e. 2, 5, 7 ect... ohms ) ? There may be some reactants stemming from the use of UHF connectors or the coax itself , hard to tell . The 2 meter beam has a bandwidth of almost 800kc wide before the VSWR begins to slowly rise . By design and verified at final tuning at time of installation , I was able to achieve near perfect VSWR with reactances in the 1~5 ohm range when measured using the newest Comet CAA-100 meter . The reactance range mentioned is between a narrow VSWR measurement of 1.0 up to 1.2 . at 800 KC wide . Should I be concerned about a few reactive ohms ? I plan on purchasing a 1 kw linear amplifier for 2 meter soon and sure would like to see all 1 kilowatt go out the antenna .