NOTE: Limited supply left
as of 2014. Please email us first before ordering.
See Secure Order Form for prices.
For specific hookup info by model number, see the detailed Installation Instructions & Technical Notes.
Fits all PLL or crystal CB radios using a 7.8 MHz or 10.695 MHz IF frequency.* Usually installs in minutes with common tools and no special knowledge. Connect the left & right bare wires to IN & OUT along the I.F. signal path. (We tell you exactly where.) Connect the middle bare wire and the long colored wire to the radio's GROUND and +DC power. That's all there is to it!
Works on AM, FM, and SSB.
two CHANNEL GUARD filters to fit the most common CB IF
frequencies, 10.695 MHz and 7.8 MHz.**
high-frequency filters are specially designed for SSB rigs and most newer AM or AM-FM
rigs. Simply unsolder the correct IF coupling capacitor listed in our detailed
instructions, install the INPUT/OUTPUT leads and GROUND, and connect the long colored wire
to +8-13VDC. You are done! Complete instructions are included and are also online at
the link shown above.
CB radio is popular. Maybe even too popular. Either the skip cycle is in, with great DX to crowd every channel, and all the Hams converting CBs to 10 Meters. Or the skip is dead, so every local guy in town seems to be busy talking to his neighbor at the same time as you. Many stations are overpowered and overmodulated, and are guaranteed to make your operating miserable with splatter and bleedover. Fed up with hearing the guy down the street ten channels away? The CHANNEL GUARD will stop him cold!
Using the same idea as our original 455 KHz CHANNEL GUARD, the high-frequency SSB filters combine an IF amplifier stage with two high-Q crystal elements. You install our filter at an early IF signal point, before the signal branches off to the separate AM, FM, or SSB detectors. The resultrazor-sharp selectivity in every mode. Since the "Q" (Selectivity Factor) of a crystal is many times higher than the normal tuned IF transformers in a CB, the strength of interfering signals even slightly off the center frequency drops off very quickly. Bleedover is greatly reduced. See the Graph. FEATURES:
Our 10.695 MHz filter really cleans up all the Uniden, Cybernet, and RCI/Ranger export radios, and all the CB &
10-Meter lookalikes (HR2510/HR2600, Cherokee, Connex, Eagle, Galaxy, Ham Int'l, Magnum, Mirage, Northstar, Ranger/RCI, Superstar, TriStar, etc.) And in every mode! See Pages 4-6 of the online CG HOOKUP LIST,
CBC INTERNATIONAL · P.O. BOX 30655 · TUCSON AZ 85751 U.S.A.
TEL/FAX: 888-I-FIX-CBs (1-888-434-9227), (520) 298-7980
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