Sat Mar 03, 2007 11:24 pm
I have a Radio Shack Pro-93 Handheld 300 channel Trunking model (@$150), and a Pro-2053 base model (Ebay, $50) which is basically the same thing. There is a free (Non-Radio Shack) download from Blackbag Software(Pro93.com) that lets you configure your radios and archive frequencies stored. You can also "clone" frequencies from one radio to the other. Oddly enough, the cable/cd rom PC interface that Radio Shack sells DOES NOT WORK with THESE models. The forementioned site sells one, but you can also find a schematic and build one yourself, which I did. It was a 9 pin(DB9) RS-232 (serial port) to 1/8" 2 conductor plug. It required a transistor due to current requirements, but the parts fit inside the DB9 connector hood nicely.
I love the alphanumeric text tag function; this allows you to label individual channels and/or Trunk ID's so you know exactly what you are listening to. However, a common glitch with the software in those models are that sometimes the trunk ID tag has an error. Instead of saying "TAC 1" for example, it may say trkid01234; havent figured that one out, but both my scanners do it at times.
If you view my Allertor Test on Youtube (under sirenzrok), you hear my Pro-93 off camera before activation. Being that most newer siren radios use FSK, frequency shift keying, rather than DTMF (touch-tones), it is much harder to hack and activate the sirens. Hence, knowing the frequencies isnt really that big of a deal, in my opinion.
Digital scanners can decode the newer voice radio systems that otherwise would probably sound like a fax machine or modem noise if monitored on a more basic analog scanner. Most that I have seen are in the $500 dollar range for now. I'm waiting for prices to drop.
Elliott, A.K.A. KD8FOV, and Sirenzrok on Youtube