![]() ![]() Make calculations on troposcatter paths by using the Excel-sheet of SM6MUY. An propagation mode for VHF and up, independent of weather conditions. The warning labels on the package for information on Your tube specifically.Īircraft Scatter. Any dust from beryllium oxide is lethal to inhale. Do notĭo any machining, brushing or grinding on the ceramic parts of the Transmitting tubes may contain beryllium oxide ceramic(BeO).Avoid working alone when working with the HV parts. ![]() Always unplug the mains voltage input before starting to work with your HV.Always use bleeders and ground the HV output with your "chicken stick" before touching anything.High voltage (HV) is lethal if touched.Note! Working with transmitter tubes includes a lot of dangers, please be careful. In addition to this a few other related questions with respect to transmitter tubes are addressed on this page. Here I give you a procedure to format or "burn in" the tubes. May cause injuries, beyond repair, to them. If you do not take proper care of them you įormatting transmitting tubes and associated questions.Ī few hints on how to treat transmitting tubes that have been resting Here I give you a procedure to swap the anode cooler. Swapping of the anode cooler of TH308-type tubes.Ī description of how to remove and replace the anode cooler of the TH308 series of transmitting tubes. Phasing error analysis of four yagi antennas for 432 MHz. A analysis of how phasing errors affect the radiation pattern of four 9 el yagis stacked in a box confuration. Post conference version of the "Unexplored Areas of 432 MHz Feeds" presentation from EME 2012, including new material (3.4 MB PDF-file). Read this and get help in making the right choice of a 432 MHz feed for your dish. Analysis of 14 different 432 MHz linear polarized feeds. To be fully implemented!Ĥ32 MHz dish feed analysis and comparison. This mostly applicableįor the EME-station but can be used for tropo stations as well. Learn more about how to check your VHF-UHF stations performanceīy using ground noise, cold sky and sun noise. Mounted connector and then making an interface to the heavy cable. Theīase is to start with a standard four hole flange Type N (F) chassis Process of making your own Type N (F) connectors using a lathe. Still to be implemented !ġ 1/4" and 1 5/8" low loss coaxial cable. A simple and reliable circuit for an radio beacon ID using the inexpensive and simple PIC 16F84. Learn how to injection lock the 30 MHz master oscillator in the ICOM IC-706Mk2G to vastly improve the frequency accuarcy and stability.īeacon ID with PIC 16F84. Words not very different from English, you will do just fine. Synthesizes LP, HP, BP or BS filters with Butterworth,Ĭhebyshev, Bessel or Gaussian (12 dB) characteristics. Inconvenience this unfortunate limitation may cause you in anįilter synthesis S/W for DOS-environment, Filter.exe Read -jB/Yo (not +jB/Yo) and the lower is inductive susceptance and the Upper part of the chart is capacitive susceptance and the label shall Smith-chart made a mistake in the labeling of the susceptance sign. Unfortunately, the creator of the admittance/impedance Admittance and impedance Smith-chart in three colors Standard B/W impedance Smith-chart (66 kB). Smith-charts for the screen or to print on paper (A4 size) i PDF format. Coaxial structure calculations for both circular cross-sectionĪnd square outer conductor cross-section.Cutoff frequency, guide wave length and attenuation below the cutoff frequency. ![]() Runs fine in an DOS-window in Windows 2000 and XP. Wave guide and coaxial structure parameter calculation S/W for DOS-environment, Cutoff.exe (75 kB). Similar dish calculation program but as an Excel-file, Dish.xls (24 kB).
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