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Date of last page update
04.05.2009
Septum
polarize - transformer, feed and all about
Feed
with septum transformer 
640kB
edit from Power Point
Mechanical
solution of 10386 MHz Septum feed
33kB
Drawing
of mechanical solution for 23 and 13 cm
Theory
of septum polarization transformer IEEE source
pdf 560kB
Flare for all bands - practical solution
Practical solution from Cassegrain system by OK1CA
Septum
polarization transformer-calculation sheet – Excel 24kB
Practical
solution on the picture
Click on the picture for detail
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DFC microwave company has now this article 23 and 13 cm for sale.
WD5AGO
Tommy's solution for 6cm
W1GHZ - OK1DFC
Diagrams
of septum polarizer which calculated Paul W1GHZ
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Analysis
of the OK1DFC septum feed by W1GHZ
451 kB
Power Point presentation of Paul W1GHZ - 7Mb
Microwave
Antenna book - Septum feed by W1GHZ
1,2Mb
square wave guide
Microwave
Antenna book - Septum feed by W1GHZ
1,2Mb
circular wave guide
Septum feed with ring - by Paul W1GHZ
NEW ANALYSES OF OK1DFC feed by W1GHZ
NEW Analysis of RA3AQ feed by W1GHZ
DL4MUP
PA0PLY
Interesting experience of Jan PA0PLY
(Jan do not use tuning screw)
New information about feed of Jan PA0PLY
Other new information about feed of Jan PA0PLY
N2UO
Marc
N2UO made a optimalization on Dual mode Septum feed
RA3AQ
UPGRADE of previous OK1DFC feed with RA3AQ circular wave guide
Septum feed by Dima RA3AQ for 1296 and 2320 MHz
Septum
feed by Dima RA3AQ for 1,2 - 2,3 - 3,4 GHZ 0,36 F/D
Septum feed RA3AQ for dish with F/D 0,4
Septum
feed for dish F/D 0,5 - 0,55 by Dima RA3AQ
1,2 Mb
Analyses were performed in CST Microwave Studio software at Czech Technical University in Prague by OM6AA
Probe for RA3AQ feed with 7/16" connector
Family of users and septum feed owners
(if you are using this feed too, please let me know I will present your call and link here)
9H1BN - DK3BU - DL1YMK - DL9OM - DJ3FI - G4BRK - DK2AN - DL4MUP - OK1CA - OK1UWA
OK1DFC - OK1KIR - ON7UN - ON4BCB - JH1AOY - G4KLX - HB9JAW - DL3HRT WA1ECF - DF6NA - G4DDK - OM6AA - K1JT - KL6M - ZS5LEE - KD5FZX - PI4Z - WA5WCP - EI/DL1YMK CT3/DL1YMK - WB2BYP - G4DUP - KL7UW - WW2R - G4DZU - VK4TZL - F8DO - VK7MO PA3FXB - DF0MFG - GM3SBC - UN8GC - RW3BP - JH5LUZ - PY2BS - YO2IS - YO9FRJ PA0PLY - RW1AW - F2TU - TF/DL1YMK - 8N1EME - P43L (K2UYH) - N2UO - OK2KJT - OK3RM - K6JEY - N9JIM - G3LTF - DL1YMK/CX - VK2JDS - YO3JE - WD5AGO
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Feeds assembling |
Feed before testing |
Prepared feeds |
Flare for 0,5 f/D 13cm |
Detail of flare 0,5 f/D |
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Flares for 1296 and 2320 MHz usable F/D 0,4 - 0,5 |
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PLEASE use circular polarization from 1,2 GHz up. You see that the system is very easy now !
You can see "Prague EME convention 2002" about circular polarization here.
If
you are interesting, let me know on address.
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My first 432 MHz antenna system in 1996 usable for EME. Included 4x38 elements M2 Yagi's, MGF1302 preamplifier and Lunar Link power amplifier 2x3CX800A7-1,5kW. |
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In the 4x38el.M2 1996 |
First EME antenna 4x38el. M2 |
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My first 1296 MHz system in 1997. Included 3,8m dish, VE4MA feed, FHX35LGA preamplifier and PA with 2x2C39BA - 150W out, later TH338 1kW out. New feed at 1998 with septum polarize transformer. |
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um + preampl. |
Septum in the 3,8m dish |
View 3,8m dish |
Myself and dish |
| PA with TH313 70 cm for EME | SOLID DISH wind load graph | |
| Cathode power supply 150kB | DISH wind load calculation | |
| Plate power supply 150kB | ||
| 432 MHz EME power amplifier with YL1056 | ||
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432
MHz loop feed
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EME contests & activities
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"JT65 simple way to EME" PDF presentation - CZ language - 1,6Mb |
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