Eric,

The DB4055 is 5 cavity band reject duplexer from Decibel Products.

Its notch is 75 to 80 db at 5 MHz.  Min freq separation is 5 MHz making it 
useless for 2 meters Ham repeater.

TX noise suppression at RX freq 70 db
RX isolation at TX freq 70 db.

Max power is 150 W continuous and insertion loss is 0.7 db.

The versions ar A=150-162 and B 160-174.

Would be good for something like MARS or other commercial repeater.

73, ron, n9ee/r



>From: Eric Grabowski <[EMAIL PROTECTED]>
>Date: 2008/04/04 Fri AM 03:29:17 CDT
>To: Repeater-Builder <[email protected]>
>Subject: [Repeater-Builder] DB4055 Duplexer

>                
>I found tuning instructions for the DB4055 duplexer on
>the R-B website, but I haven't been able to find any
>specs on this unit. 
>
>Does anyone know what the insertion loss and maximum
>power ratings are?
>
>Is the low-split version suitable for use on 2 meters?
>
>73 and aloha
>Eric KH6CQ
>
>__________________________________________________________
>You rock. That's why Blockbuster's offering you one month of Blockbuster Total 
>Access, No Cost.  
>http://tc.deals.yahoo.com/tc/blockbuster/text5.com
>                                                                               
>         


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.


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