Aim tti tgr1040 with gpib rs232 tgr1040gp aim tti tgr1040gp p the tgr series are low cost synthesised rf signal generators that incorporate the essential features required for most development test and service work namely high frequency accuracy and stability wide dynamic range low phase noise and leakage and flexible modulation capabilities p p the tgr2050 covers from 150khz up to 2ghz and incorporates am fm and phase modulation internal and external the wide frequency ra