A system for signal re-transmission comprising: a channelizer, configured to: receive a sampled wideband intermediate frequency, IF, signal exhibiting a first sampling rate, and produce a plurality of sub-band signals, each sub-band signal is associated with a respective sub-band of said sampled wideband IF signal, each sub-band signal exhibiting a second sampling rate lower than said first sampling rate; a signal effect processor, coupled with said channelizer, said signal effect processor including a plurality of sub-band processors (114 1, 114 2,..., 114 M) and a summer, each of at least one selected sub-band processor is configured to: receive said sub-band signal, introduce at least one effect to said sub-band signal, thereby producing an affected sub-band signal; increase the sampling rate of said affected sub-band signal to said first sampling rate, thereby producing an affected sub-band re-transmit signal, and provide said affected sub-band re-transmit signal to said summer; and a controller, coupled with said channelizer and with said signal effect processor, configured to select said at least one selected sub-band processor, and to control settings of said at least one effect, wherein said summer is configured to sum said affected sub-band re-transmit signal from each of said at least one selected sub-band processor so to produce a wideband affected re-transmit signal, wherein said system processes selected sub-bands of said sampled wideband IF signal. a channelizer, configured to: receive a sampled wideband intermediate frequency, IF, signal exhibiting a first sampling rate, and produce a plurality of sub-band signals, each sub-band signal is associated with a respective sub-band of said sampled wideband IF signal, each sub-band signal exhibiting a second sampling rate lower than said first sampling rate; receive a sampled wideband intermediate frequency, IF, signal exhibiting a first sampling rate, and produce a plurality of sub-band signals, each sub-band signal is associated with a respective sub-band of said sampled wideband IF signal, each sub-band signal exhibiting a second sampling rate lower than said first sampling rate; a signal effect processor, coupled with said channelizer, said signal effect processor including a plurality of sub-band processors (114 1, 114 2,..., 114 M) and a summer, each of at least one selected sub-band processor is configured to: receive said sub-band signal, introduce at least one effect to said sub-band signal, thereby producing an affected sub-band signal; increase the sampling rate of said affected sub-band signal to said first sampling rate, thereby producing an affected sub-band re-transmit signal, and provide said affected sub-band re-transmit signal to said summer; and receive said sub-band signal, introduce at least one effect to said sub-band signal, thereby producing an affected sub-band signal; increase the sampling rate of said affected sub-band signal to said first sampling rate, thereby producing an affected sub-band re-transmit signal, and provide said affected sub-band re-transmit signal to said summer; and a controller, coupled with said channelizer and with said signal effect processor, configured to select said at least one selected sub-band processor, and to control settings of said at least one effect, wherein said summer is configured to sum said affected sub-band re-transmit signal from each of said at least one selected sub-band processor so to produce a wideband affected re-transmit signal, wherein said system processes selected sub-bands of said sampled wideband IF signal.