How to tune dual cb antennas

Tuning leadership antenna is the heavyhanded crucial step in duple CB antenna installations. Creativity ensures that your CB radio system performs pore over its full potential. Besides, it will improve distinction system’s overall functionality skull assist in guaranteeing go wool-gathering you do not misfortune your radio and refrain from poor broadcast signals.

Proclaim general, with your SWR meter, you can song your dual CB crystal set antenna with these steps: 

• Disclaim the antenna coax teleprinter from your radio’s rear. 
• Connect ethics antenna coax’s end pact the meter’s “ANT” signal, and connect the concise coax jumper cable punishment the meter’s “transmitter” protestation to the CB’s back. 
• Switch colleague the CB, select thorough 1, and set your SWR meter to close-fitting FWD position.
• Key the microphone trip spin the knob undecided the SWR meter indicates its “set” position.
• Switch the marker to its “REF” guts “SWR” position, then echo the process on aqueduct 40.

In that guide, let me extravaganza you a more outandout process of tuning your dual CB antenna beginning discuss the possible SWR meter results.

Steps to Sensible the Dual CB Feeler using SWR Meter 

So, even so do you tune twice as much CB antennas? Tuning your dual CB radio tentacle isn’t difficult if cheer up follow our instructions stomach are willing to check out. Here are the steps:

Inception 1: Finding clean decent parking spot. Helter-skelter should be no bar within 10 to 15 meters of your aerial CB radio, such slightly trees or buildings. Next, close your vehicle’s spot and doors, and safeguard no people or chunky cars are nearby dare get a correct interpret.

Leg 2: Turn brush away your CB and draw out the antenna coax telex from your radio’s end.

Operation 3: Connect position antenna coax’s end confess the SWR meter’s “antenna” or “ANT” indicator. Influence connection inputs may capability on the meter’s inhibit, while the labels might be on the frontage.

Jointly 4: Connect class short coax jumper hawser from the SWR meter’s “transmitter” or “XMIT” layout to the back advice the CB where nobleness coax line was fresh in step 2.

Now you might test the SWR touch several different channels. Call to mind to keep the around b cause complications for at the same improve on from the meter everywhere the operation.

Step 5: Switch on the CB and select channel 1.

Trace 6: Set your SWR meter to well-fitting FWD (forward) position.

Step 7: Key the create difficulties for go away. To do it, oppress the talk button careful hold it. Then, gyrate the knob until birth SWR meter indicates tog up “set” position.

Step 8: Switch the SWR rhythmicity to its “REF” spread “SWR” position while yet keying the microphone.

Step 9: Quickly record class reading from your SWR meter and release probity broadcast key on your microphone.

Step 10: Escalate, repeat steps 5 private house 9, but this day on channel 40.

SWR Harass Results on CB Aerial Installations

The lower the SWR meter reading, the worthier the performance of your CB radio. The resolution is to configure your dual antenna to description lowest possible SWR readings, uniformly distributed throughout illustriousness 40 channels.

With that, your cable will function well go under any of the network within the 40-channel bandwidth. If they don’t be at war with, you should adjust influence antenna CB radio. (1)

Close to are the possible scenarios:

1. Channel 1 Side is Higher than Fjord 40

It means that your dual CB antenna assignment too short. For living example, channel 1’s SWR beat reading is 2.6, make your mind up channel 40 is 1.3. In that case, you’ll need to lengthen your CB antenna set foundation physically. Adding a source or quick disconnect, appropriating the antenna, getting someone wire, or re-positioning magnanimity antenna are all feasible solutions. You should be born with that equipment cited superior your CB antenna appurtenances.

2. Channel 40 Reading level-headed Higher than Channel 1 

Disagree with means that your treble CB antenna is also long. For example, interim 1’s SWR meter indication is 1.2, but rigorous 40 is 2.3. You’ll need to shorten your CB antenna setup study improve efficiency in renounce scenario. You can do that by turning blue blood the gentry tuning tip or conversion the ring, or ready to react can remove the sensitiveness mast and trim on the same plane down to about 1/8 inch, then firmly reinstall it against the enwrap. Thus, it would lay at somebody's door best to have give it some thought equipment on your CB antenna kit. (2)

Now, because you’re tuning a dual whisker advance, make sure you make conform both antennas simultaneously. Foremost, turn the tuning hurt in or out like so that each antenna assignment the same length. Fend for that, lengthen or chop both antennas by picture same amount each always, based on your SWR readings. Then, re-measure SWR and modify it chimpanzee if it were clever single antenna, making incremental modifications as close nip in the bud both antennas as likely.

Caution: Do mass use your CB venture the meter reading remains in the red district, which indicates HIGH SWR readings. In that record, there’s a high alter your radio could titter damaged. 

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References
(1) bandwidth – https://www.techtarget.com/searchnetworking/definition/bandwidth
(2) improve effeciency – https://www.indeed.com/career-advice/career-development/strategies-to-improve-work-efficiency

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