> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of JT Croteau > > Here is what I have in the junk box: > > 75' of RG213 > ~30' of solid conductor commercial ladder line > ~800' of 14ga stranded insulated THN wire > Assortment of dog-bone style insulators > Wide assortment of PVC and nuts/bolts > > What can I do with the above and the internal tuner in my K1 without > going out and buying anything? Ideally, I'd like something that will > load well on 80/40/30/20/15 but will settle for 40-15. > > Anyone have any ideas? >
Most of this will bounce since I am not subscribed to but one of your cross-posted forums... However, There are several things you can do. You didn't tell us how much horizontal space you have so I will just guess. You don't have a balun or an external tuner so this will be fun to work with. You can try some of the following: 1: stretch out a 135 foot dipole (Inverted Vee) and feed it with the RG213 to the rig. Trim the antenna to match as close to the lower end of 80 as possible. 3.525 or so should work. Then see if the rig can handle the antenna on the other bands. It should work harmonically on all bands but 30 meters. If not, calculate the center frequency of the 80 meter band and trim it to one whose multiple will put you closest to those other bands you wish to operate. I am assuming you are wanting to operate CW mostly. Once trimmed, then try to fine-tune it with the internal tuner to those bands it doesn't match. If it matches all but 30, then calculate a 30 meter dipole and add it under the 80 meter dipole. Use the PVC to space the elements about 4-8 inches apart. Trim the lower frequency antenna first, and then the higher frequency antennas. Now, you should be able to operate on all bands. If you don't have the space, you will have to be more creative. Trimming the inverted vee to 7.025 will also give you a multi-band from 40-10 and require less space. You may still need the 30 meter element. If you could make a full sized dipole (flat-top), you can keep adding dipoles under the 80 meter dipole until you have all the bands you desire, each trimmed for your favorite frequency and the tuner will match it on the rest of the band. I don't remember if the G5RV uses the same or less twin feed as you have, but you can look into that. I hope this helps, if nothing else maybe it will stir up some thoughts that bring about your solution. 73 for now Buck N4PGW -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.8.3/361 - Release Date: 6/11/2006 ______________________________________________________________ QRP-L mailing list Home: http://mailman.qth.net/mailman/listinfo/qrp-l Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[EMAIL PROTECTED]
