Who can climb a tower the safe way can free climb it as well. But for what purpose? I climb my 44m high tower without stop for a rest but always attached. 58m probably would require me to rest in bet
I would expect Z to be higher on 60MHz then on 1.8 MHz. With the outside diameter of 5mm for RG58 40 turns would require a coil length of at least 200mm ~ 8". 73 Peter Myself, I am using a air wound
Exactly, there is no problem with overheating on a yagi. I use 12 windings of RG141 on a 61 mix toroid on 40m and less on the higher bands when not winding the feed line to a solenoid. All mine are o
And what is your system? Mine is IEC60309 73 Peter Yep... You can choose to use railroad track rails and rail spikes to make your power distribution connections - but you'd be the only guy in the wor
Hi Jim, To get the same signal strength -4db compared to the 3el yagi on low angles with your dipole that dipole must be mounted much, much higher then the yagi and even higher with more elements on
Hi Steve, You probably measured arriving signals with qsb so you just proved your method being wrong, otherwise the result would be always the same. You need to measure and compare the major lobes ju
There are Tribanders on the market with more then three elements per band, For example the Optibeam 21-3 with 5/5/11 elements on 20/15/10. Concerning height, 1-1.5 lambda antenna height is generally
What exactly do you want to tell us? I canīt follow, perhaps a language problem? Peter I have asked my resident experts (U know who u r.) and added my own unschooled opinion. For the three band range
VF of RG-393 is .70 as with other PTFE coax. The highest coax loss of my station is on 2m with .7db through LCF 158-50 with UCF78-50 pigtails, total length is 75m from antenna relay to antennas. On a
Height should not be the problem. My 2-element HyGain discoverer did not change its SWR when taken down from 38m to its present 18m height. 73 Peter Hi. Many thanks to all who replied. I have kept al
On my CL-33 the braid of the coax btw. the corresponding site of the driven element is NOT bonded to the boom nor is such mentioned in the manual. 73 Peter After perusing through the Mosley.... tech
I use mostly RG-214 but also short length of RG142 or longer runs of SCF12-50, always depending on my surplus sources what is available for free or some beer. 73 Peter Im re-cabling a 4 transmitter s
I would always prefer trap yagis over such installations: http://www.optibeam.info/files/ob18-6.jpg And I donīt buy your "they can easily be outperformed" I never found a performance difference betwe
If a 3 el 20m monoband yagi is say 5.3 dbd, and your CL-33 is 2-3db down from that... that's a huge amount. _______________________________________________ ___________________________________________
Why would someone want to compare a full size yagi with a mini beam? results will make u gag. Gets even worse when a TA-32jr is used. _______________________________________________ _________________
It works well. I use that a idea as a reflector to my elevated GP on 160m with one elevated radials as a counterpoise. Still passiv but will become a phased array with two of those bent elements. It
Where is that supporting study? I doubt that they measured within the main lobe of the antennas on the comparison test. 73 Peter Read the supporting study - the details of the test method are explain
Why is a difference of a 1/16" of element length a disaster with an antenna to cover 430-438MHz? --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Lizeth Nor
W8JI has published something: http://www.w8ji.com/traps.htm 73 Peter OK, but... Has anyone actually measured the Q of any modern traps? I have a KLM-KT34A. Its linear loaded traps are supposed to hav
Soil condition does not affect the pattern, but the gain of the horizontal polarized antenna. 73 Peter Wrong on one count -- soil does NOT affect the pattern or performance of horizontally polarized