Collins Mechanical Filters for the IC-703 & IC-703 Plus Single Filters & Dual Filters!
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One Board Filter 2300 Hz SSB and 300 or 500 Hz CW OBF-ICOM-DIY-500 $249 Install Yourself 500 Hz Collins CW & SSB Filters OBF-ICOM-I-500 $279 W4RT Installed 500 Hz Collins CW & SSB Filters OBF-ICOM-DIY-300 $254 Install Yourself 300 Hz Collins CW & SSB Filters OBF-ICOM-I-300 $284 W4RT Installed 300 Hz Collins CW & SSB Filters The One-Board Filter (OBF) provides both factory-fresh Collins CW and SSB mechanical filters in your ICOM IC-703 or 703Plus! The W4RT One Board Filter does what ICOM can not ... provide you both high-performance CW and SSB filters in teh same package. The SSB filter replaces the stock MuRata filter and the CW filter fills the OPTION filter slot. Available for you to install or to have W4RT install for you. Before ordering the User Installed package, please read the Installation Manual to be sure you can perform the installation properly. The performance improvement has been found by users to be remarkable.	One Plug Filter - CW 300 or 500 Hz OPF-ICOM-CW-DIY-500 $114 Install Yourself 500 Hz Collins CW Filter OPF-ICOM-CW-I-500 $144 W4RT Installed 500 Hz Collins CW Filter OPF-ICOM-BOTH-500 $244 Buy both the CW & SSB Filters 500 Hz Collins CW & SSB Filters OPF-ICOM-CW-DIY-300 $119 Install Yourself 300 Hz Collins CW Filter OPF-ICOM-CW-I-500 $154 W4RT Installed 300 Hz Collins CW Filter OPF-ICOM-BOTH-300 $249 Buy both the CW & SSB Filters 300 Hz Collins CW & SSB Filters This 300 Hz or 500-Hz CW filter uses factory fresh Collins Mechanical Filters. Rather than the ICOM optional crystal, you can now have the excellent Collins filter. This filter allows the IC-703 or 703Plus radios to perform nicely in the CW modes, and is properly terminated for best performance in your radio. Available for you to install or to have W4RT install for you. The performance improvement has been found by users to be remarkable.	One Plug Filter - SSB 2300 Hz OPF-ICOM-SSB-DIY $134 Install Yourself OPF-ICOM-SSB-I $164 W4RT Installed OPF-ICOM-BOTH-500 $244 Buy both the CW & SSB Filters 500 Hz Collins CW & SSB Filters This excellent SSB filter built by W4RT Electronics contains a factory-fresh 10-pole Collins Mechanical Filter having a 2.3-kHz bandwidth. Tests have demonstrated that a 2-dB improvement in talk power can be realized by using this filter rather than the stock MuRata ceramic filter. "Hearing" is also improved. Available for you to install or to have W4RT install for you. The performance improvement has been found by users to be remarkable.
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