This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. --------------E0CAB707D1412F30683E244B Content-Type: TEXT/PLAIN; CHARSET=US-ASCII Content-ID: On Sun, 29 Dec 2002, Milan Pavlica YU7XW wrote: *>I know all theory, i calculated, and when i connected to my FT101Z, i had *>SWR 1:3 and 1:4 !!!! *>Where i got wrong? Imho the best way is to use a vertical lambda/4 using thin wire (the thin wire will up the impedance from 20ish to 50ish - I hope). You HAVE to provide ground at the end of the coax where the stick starts. Solder it to something large and metallic imho. or provide 'counterweights' (lambda/4 or longer wires, several, stretched horizontally or downwards. To prevent the coax from radiating (probably the reason for your bad mismatch) you can put several (5-10) ferrite toroids on the coax near the end with the antenna. To make the antenna resonate wider you can connect it directly at the base with a small T-pad. A 2dB T-pad will go a long way here. Remember the T-pad will heat up when you transmit, use appropriate size resistors. This is a hack not a proper match but you asked for a hack. hope this helps, Peter *>I have dipole l/2 for 80m and works 100% - 3.737 SWR is 1:1.2 :))))) *>Now, on 21MHz i have a problem... *>Where i am getting wrong.... *> *>"Rick C." wrote: *> *>> Wasn't this question part of your exam to get your license? The answer *>> should also be in your study guide. *>> Rick *>> *>> Milan Pavlica YU7XW wrote: *>> *>> > ...Hi! *>> > I need to made a quick dipole for 21MHz *>> > I have only: *>> > RG213 from radio-to-antenna *>> > It is important not to use balun or any twin leads etc etc etc *>> > Just simple wire conected to RG213 *>> > Any ideas? *>> > What length of wire need to be? *>> > THANKS! *>> > *>> *>> -- *>> http://www.piclist.com hint: The list server can filter out subtopics *>> (like ads or off topics) for you. See http://www.piclist.com/#topics *> *>-- *>http://www.piclist.com hint: The list server can filter out subtopics *>(like ads or off topics) for you. See http://www.piclist.com/#topics *> *> *> -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics --------------E0CAB707D1412F30683E244B Content-Type: TEXT/X-VCARD; CHARSET=koi8-r; NAME="mpavlica.vcf" Content-ID: Content-Description: Card for Milan Pavlica YU7XW Content-Disposition: ATTACHMENT; FILENAME="mpavlica.vcf" begin:vcard n:Pavlica;Milan x-mozilla-html:FALSE url:www.supersonicsystems.org org:SuperSonic Systems adr:;;;;;; version:2.1 email;internet:mpavlica@ptt.yu title:Chief fn:Milan Pavlica end:vcard --------------E0CAB707D1412F30683E244B--