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Date of last page update
18.08.2022
Basic
Feed
with septum transformer
edit from Power Point
Mechanical solution of 10386 MHz Septum feed
Drawing
of mechanical solution for 23 and 13 cm
Theory of septum polarization transformer IEEE source
Flare for all bands - practical solution
Practical solution from Cassegrain system by OK1CA
Septum
polarization transformer-calculation sheet – Excel 24kB
If
you do not use Excel here is .pdf
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.
W1GHZ - OK1DFC
Diagrams
of septum polarizer which calculated Paul W1GHZ
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Analysis of the OK1DFC septum feed by W1GHZ
Power Point presentation of Paul W1GHZ
Microwave Antenna book - Septum feed by W1GHZ
square wave guide
Microwave Antenna book - Septum feed by W1GHZ
circular wave guide
Septum feed with ring - by Paul W1GHZ
NEW ANALYSES OF OK1DFC feed by W1GHZ
NEW Analysis of RA3AQ feed by W1GHZ
Optimize of RA3AQ feed for OK1DFC dish
OK1DFC
- septum feed with W2IMU collar - 1296 MHz F/D 0,6
OK1DFC - septum feed
with W2IMU collar - 3400 MHz F/D 0,6
WD5AGO Tommy's solution for 6cm
DL4MUP
PA0PLY
Interesting experience of Jan PA0PLY
New information about feed of Jan PA0PLY
Other new information about feed of Jan PA0PLY
N2UO
Marc N2UO made a optimization on Dual mode Septum feed for 1296 MHz
G3LTF
Peter G3LTF modify N2UO Dual mode Septum feed to 6cm
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
Probe for RA3AQ feed with 7/16" connector
New dual feed with round septum
OM6AA
Analyses were performed in CST Microwave Studio software at Czech Technical University in Prague by OM6AA
Revised OK1DFC square septum with collar choke by OM6AA
SM6FHZ
SM6FHZ 5 step septum solution from 1296 up to 10368 MHz
Family of Septum feed users
(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 - G4HUP - 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 - SV1OE - 4O/OK1DFC - Z3/OK1DFC - E77DX - OH0/DL1YMK - OM/OK1DFC - 8J1AXA - LU8ENU - R2/DL1YMK - RA3AQ - RD3YA - W7IVU - LY/DL1YMK - PY2BS - OK2DL - DL6SH - OK3RM - G5WQ - G3LTF - VK2AMS - IS0/OK5EME - OK1CS - OK2DL - OK2ULQ - OK1YK - TK/DL1YMK - EA9LZ - 4U1ITU - DL7YC - OK2PE - OK1IL - DL1SUZ
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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.
SM6FHZ
Compilation and simulation 432 MHz feeds
CT1DMK
OK1DFC
Recalculated loop feed of OM6AA to 432 MHz
Simulation of feed pattern by OK2AQ
OM6AA
Loop feed for 1296 & 2320 MHz by OM6AA
Family of Loop feed users
(if you are using this feed too, please let me know I will present your call and link here)
DL1YMK - G4CCH - OK1CA - OK1DFC - W7IUW - IS0/OK5EME - EA9LZ - DL6SH
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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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Septum + preamp. |
Septum in the 3,8m dish |
View 3,8m dish |
Myself and dish |
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"JT65 simple way to EME" PDF presentation - CZ language - 1,6Mb |
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EME contests & logs
| ARRL | DUBUS | DUBUS | Others |
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EME links
The 19th International EME Conference was held in Prague from 11 to 14 August. The common image is here and by clicking on it, you can download a high resolution image.