I have promised a few people here to let them know when the microwave / SMA connector version of my fast risetime pulser is available. It is available now: http://www.leobodnar.com/shop/index.php?main_page=index&cPath=124 For those not familiar with what it does - this is a pulse train generator with extremely fast risetime of 30ps (10-90% levels). Falling edge is even faster at about 25-27ps. Pulse edge spacial length is only few mm. Due to very fast edges its spectral content extends from 10MHz to tens of GHz. Pulser's main purpose is testing bandwidth of time/frequency lab equipment and performing TDR/TDT. Thanks Leo