So borrow a Bird Thruline with the proper UHF range slug, and run various power levels into the combination and make up your own calibration chart. You will probably find that it's pretty linear... like x% off from y to z frequencies...
Until I found a military version of a Termaline in a surplus store (about 1985 or so) I was using a Heath in-line VHF wattmeter and a Bird resistive load. I tested the setup with a friend's Bird Thruline and it was acceptable at 2m and about 5-10% off at 220MHz and about 10-15% off at UHF (if forget the exact percentages, but they were consistent across the ham band). And since most tuning is done for maximum or minimum, the exact numbers aren't necessary. And for those that are, you can take the number off your wattmeter, multiply it by the known fudge factor, and record the result in your logbook. Mike WA6ILQ At 05:15 PM 3/1/06, you wrote: >--- Dennis Wade <[EMAIL PROTECTED]> wrote: > > > Good morning all, > > > > I am looking for a UHF element for the > > above wattmeter. > > There were various power and specific frequency > > ranges made...I need > > one that will cover the 440 amateur band at minimum. > > The element that > > went to 1 Ghz would be ideal. What do you have? > > > > Please excuse the marginally on topic post > > for some lists, > > but finding one of these is more difficult than I > > thought. > > > > Thanks! > > > > >Unlike the Bird elements the URM120 or Struthers >wattmeter slugs are calibrated for the meter it is >used with. How much differance it will make to >subistute the slugs from one meter to another is >unknown to me. > > >__________________________________________________ >Do You Yahoo!? >Tired of spam? Yahoo! Mail has the best spam protection around >http://mail.yahoo.com > > > > > >Yahoo! Groups Links > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
