Date:19 May 90 04:02:23 GMT From:philmtl!philabs!briar!rfc@uunet.uu.net (Robert Casey) Subject:Mod file:Uniden 2510 AGC speed mod for packet To:packet-radio@ucsd.edu copied from packet: Msg# TSF Size #Rd Date/Time MsgID From To 26389 BF 1878 1 0508/1111 6894_TI3DJT TI3DJT MODS@NYNET () Sb:speeding up Uniden 2510 AGC For those of you who are using a Uniden 2510 for packet, you can speed up AGC speed considerably, just by removing the AGC SSB switch transistor Q-111 This transistor switches the AGC off for CW operation, and on for SSB operation. All I did was remove it and my radio now works with very good speed on 10m. You may put a switch between the pads that were for collector and ground. When you want slow AGC turn the switch ON pulling line to ground. For fast agc turn switch off leaving line floating. That is all there is to it. The description of the mod for the 2510 may work for the 2600. Those who have the Uniden 2600 may find that the AGC is the same for this radio. Look for NJM2902 IC (this is the AGC amp), you may find a transistor connected thru a RC network, to pin 12 of said ic. Remove also. (this mod not tested!) Ciao de Chuck ti3djt @ ti0paq.cri.na ---------------------------------------- Note:I haven't tried or verified this, proceed at your own risk! WA2ISE A notice found on a piece of test equipment made in Japan: "IT PUT ON THE VINYL SHEET ON THE SURFACE OF UPPER & LOWER PANEL FOR THE PROTECTION PLEASE USE AFTER TEAR OFF VINYL SHEET WHEN USING. ------------------------------  Amsterdam View Our Stats   CLICK FOR A FREE DOMAIN NAMES HTTP://WWW.YOURNAME.TK FOR YOUR OWN WEBSITE IF YOU CLICK HERE AND YOU CAN VOTE FOR OUR FREE WEBSITES IN THE TOP 100 LIST  WANT A TOP RANKING ? USE THE ULTIMATE SOFTWARE SUITE FOR WEB SITE PROMOTION  FreeWebSubmissions Submit Your Site To The Web's Top 50 Search Engines For Free THE ALEXA BANNER, THIS BANNER GIVES THE DALLY STATISTICS OF THIS FREE WEB SITE The World of Free Packet Radio Software Amsterdam The World Of Free Packet Radio Software Amsterdam The Netherlands |