The subject invention pertains to recombinant entomopox vectors which are useful for the delivery and stable expression of heterologous DNA in vertebrate cells. Embodiments described further perform bulk-to-brick transformation of the up-to-date data surrogate. In addition, there are provided intermediate frequency filters to which the output signal of the additionsubtraction circuit is supplied and demodulation circuits to which the output signals of the intermediate frequency filters are supplied.