[Premium-Rx] R&S EK071 LSB filter/info wanted

[Hans.Hamradio]

Hi Premium RX friends.

Just obtained a very nice R&S EK071 without any damage and in excellent 
working condition. However!! the usual battle of fitting a the LSB filter + 
relais should be started soon.
The present installed USB filter is EP089.3085 (-3.4_-0.3 kHz)
So I need the LSB filter EP089.3079 (+0.3_+3.4 kHz)
Allways found the SSB filters of R&S too wide but i found in the service 
manual that beter filters are available like the  type EP089.3256 
(+0.5_+2.6kHz) and EP089.3285 (-2.6_-0.5kHz) Filters are made by STC which 
has been also a standard supplier to Racal and others.
Please let me know if you have a filter as requested,know a source or are 
has been carried out a simular action before.

Tnx H at ns PA1AMS-Amsterdam NL

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