RF Limited / Magnum Tech Notes

RF Limited / Magnum Tech Notes
Documentation Project

Description	Models	Ser #	Date
ERF2030 Replacement instructions.	S-3, S-380, S-6, S-680, S-9 and S-980	N/A	Not Dated
Front End Overload from very strong "ON" Frequency signals (Blocking Dynamic Range)	S-9	979 392 thru 988 080	Nov. 2006
Audio feedback Via the AMT when on SSB and the AMT is turned down fully.	S9 50W Version	N/A	Sep. 2007
Modification in wire connection when using PCBA-0335R6 to replace PCBA-0335R3.	S-980	N/A	Not Dated
S980 Bias Setup Procedure	S-980	N/A	Feb. 2007
40 watt FM/AM Mod.	S-980	N/A	Dec. 2004
Use of PLL 145162 In Place Of 8805	S9 50W Version	N/A	Not Dated
Reduce noise (motor boating)	S6's and S9’s that have the new TDA2003 audio power amplifier.	S6-50 S019101 S6-80 S019307 S6-50-NX S015940 S9-50 S003896	Jan. 2008
Low power out of transmitter at band edges, and different operating modes	0619 R4 Main PCB Only	S3-50 S6-50 S9-50 S3-80 S6-80 S9-80	April 2009
While transmitting the radio “breaks lock” or the CPU malfunctions.	Omega Force S45HP and Magnum 257HP		June 2010

Disclaimer: Although the greatest care has been taken while compiling these documents,

we cannot guarantee that the instructions will work on every radio presented.