[amsat-bb] Intermod help

["Antonio" <antonio.fernandez@xxxxxxx>]

I¥m suffering heavy intermodulation when working mode J satellites .My
antennas are a pair of WIMO X-Quad..when TX on VHF..the UHF side goes
deaf..I have a preamp in the UHF line (a MUST with my long coaxial lines) of
quality from SHF Elektroniks /Germany),..When working mode B (TX on UHF and
RX VHF ) all is nice with QSO`s on AO-7..,,but what a hell on FO-29 for me°°
Question is if there are some home-made filter solutions considering that I
use the UHF side also in TX for uplink to AO-40 and mode B satellites
(AO-7)..so I must transmit also on UHF through the filter..
Many thanks for the help.

73,s de Antonio (EA1IW)
AMSAT-EA 259  AMSAT-UK 5435 AMSAT-NA 33945
afesan@teleline.es
ea1iw@amsat.org
antonio.fernandez@ono.com
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