Each filter is provided with a device to adjust the
shift above and below the resonance frequency: this device allows the
usage of the filter even with changes in the conditions that guided its
purchase. For optimal results, however, it is recommended to have it calibrated
in our laboratories.
The models in this series allow a sufficient separation
between Tx and Rx. If an even higher separation is needed, it is possible
to realize models with attenuations higher than 120 dB with an insertion
loss < 1.5 dB.
A "TT" model range is available also for
diplexers, with dimensions compatible for standard racks, allowing attenuation
around 90 dB in the VHF and UHF bands and a shift of 4.6 MHz.
N.B.: the cable for connections to the devices
are not bundled in the supply, and must be explicitly indicated in the