Dave, I don't have to guess about the model number- it's printed on the label. But, you won't find this unit in a Decibel Products catalog, because it's a custom-made device as indicated by the "SP" in the model number. Although your unit could be a duplexer that is missing one jumper and a tee connector for the antenna lead, it may also be two separate bandpass pairs mounted on one rack panel.
Your best course of action is to contact DB Spectra- the company that now sells and services the site management equipment formerly made by Decibel Products- and ask for the technical details and tuning instructions. Provide the exact model and serial numbers as shown on the labels. You can contact DB Spectra at <[email protected]>. If the sales staff are clueless, call the company at 469-322-0080 and speak to one of the tech support people at extension 26- many of whom were brought over from the Decibel Products plant. 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dave Sent: Sunday, March 08, 2009 8:46 AM To: [email protected] Subject: [Repeater-Builder] DB duplexer Question I acquired this DB duplexer and need information. The cables were not connected correctly. However I do have them. It is for the 440 band I do know. First question. What would be a good guess of the model # ? Second question, does anyone have the correct cable lengths and where they go? Attached are some pictures. Thanks, Dave KA9GFS
