From Steve.Fleckenstein@f7.n911.z100.rhosoft.com Mon Jun 21 18:13:04 1993
From:
Steve.Fleckenstein@f7.n911.z100.rhosoft.com (Steve Fleckenstein) Newsgroups:alt.radio.scanner
Subject:Mods
For Bearcat 855xlt Date:Sat, 19 Jun 1993 21:55:02 -0800 SY>I have a Bearcat 855XLT table top scanner The
manual says that SY>it is not equiped to receive cellular but I am able to hear some SY>cell conversations.
Whe I tried some of the cell frequencies that SY>have been posted here I get the "Error" message from the
scanner SY>Is there a mod for this unit which will restore the missing band??
========================================================================== BBS:Red Onion Express
To:CAMISA
VERDE Recvd:NO Subj:(R)BC855XLT Conf:(31) SCANZ
------------------------------------------ UNIDEN BC-855XLT MODIFICATIONS Scope
of modifications:[1] Allow continuous 800 MHz receive [2] Increase channel capacity from 50 to 100 ch 0 1
2 3 4 :------------------------------------------:| I p p p p p o o o o o o | :----------| I | | | | | | |
[I] | | | X X
<-- CUT | | [I] D201 | | | | | | | [I] oooooo | | | | | | | I d d d d d | | I------/\/\/\--------|--| | | | | ADD 4.7K - 22K Ohm (10K works) | | 1/4 watt carbon resistor between | | diode D201 and lower connection | | of Jumpers 3 & 4 | | Jumper 3 - 100 ch Jumper 4 - 800 MHz | |-----------------------------------------------------| 1 Remove 5 screws from bottom of scanner case 2 Carefully separate case top and bottom 3 Unplug connector to the internal speaker 4 Locate diode D201 and 4 jumpers near edge of circuit board 5 Cut the 3rd and 4th jumpers near the middle and fold downwards, insulate leads, if necessary 6 Connect the lower part of jumper 3 & 4 to one end of a 10K Ohm 1/4 watt carbon resistor, insulate all exposed leads 7 Connect the other resistor lead to the lower connection of diode D201, DO NOT cut any leads on D201 8 Make sure all exposed leads aren't touching any other connections, insulate as required, tack in place with a dab of RTV silicone, or low temp hot glue 9 Reassemble scanner, make sure to plug the speaker back in You should now have a scanner with 100 chs numbered 01-00, in 5 banks of 20 ch and continuous 800 MHz coverage NOTICE:This info is given for authorized, lawful use only For educational purposes and ECPA-86 compliant applications * OLX 2.1 TD * If it ain't broke, don't fix it!
Source QRZ: The Windows Ham Radio CDROM |
