I am also currently looking for an affordable and accurate (should be most popular in the market) Wireless RF SIGNAL GENERATOR that can generate upto frequency of 8Ghz + . I need it for the purposes of testing counter-surveillance based Wifi signal sweep detectors (primarily their accuracy, reliability, and genuineness). As shown in the above video. Would appreciate if anyone can suggest a reliable model in the market (Wireless) that can generate frequencies upto 8Ghz and more. Thanks.