J/S ratio , bandwidth and pulse compression

So we know that if a jammer doesn’t know exact frequency the radar transmitting ( in case of frequency hoping ) , it will have to spread it power over the whole frequency range that radar may operate , and that will reduce J/S ratio. Which mean the wider the total bandwidth of radar or/and the smaller the bandwidth of its pulse, the harder it would be to jam that radar .We also know that if the jamming signal doesnt contain pulse compression waveform , the J/S ratio will be reduced due to compression factor.However, the more complex the waveform is , the wider the bandwidth of the pulse need to be. Does that mean frequency hoping and pulse compression counter each other somewhat ?