It doesn't make a difference how big your final is the radio will not except it. What I'm saying is if you install a 100 watt final into it ,no matter what you will only get a max of 25 watts because the radio cannot handle the 100 watt load.No if you start changing components inside the radio to obtain the 100 watts you are now in violation of fcc rules , unless you are a licensed tech , if you were then why are you asking this question. The best thing to do do is get a 100 watt amp and hook it up. you will be smoking the neighborhood.
But the 100 watt amp on a CB radio is illegal of course. If you want to have more fun become a ham radio operator where more power is legal.
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SOURCE: RADIO SHACK TRC-447
turn ur sqelch to the left and it will start making noise, and then turn it to the right till the hissing quits and then stop...and turn ur mic gain and RF gain all the way to the right and that should help...and use channel 19 the truckers channel then that the channel mostley everybody uses
SOURCE: radio shack trc-447
Hi there!!
For the TRC-447 the adjustments for AM POWER Adjust L-10 & L-11
For MODULATION Adjust RV-2 or CUT R222
For Cobra E-mail me
Dennis
SOURCE: tunning the antenna on radio shack cb trc-447
After installing the antenna, follow these steps to adjust the
standing wave ratio(SWR).
1. Turn on the CB.
2. Set S/RF/SWR/CAL to CAL.
3. Key the Mic and rotate SWR CAL so the meter points
to CAL.
4. Unkey Mic.
5. Set S/RF/SWR/CAL to SWR.
6. Key Mic again and note the actual measurement on
the SWR scale. Refer to the following table to interpret
the reading.
1:1 - 1.5 Great
1.5 - 2:1 OK
2:1 - 3:1 Not So Good
Higher than 3.1:1 Terrible
The ideal standing wave ratio (SWR) is 1:1, or a meter
reading of 1 on the SWR meter's top scale. A SWR ratio
of 1.5:1 to 2:1 is excellent for most mobile CB antenna
applications.
Check the SWR on Channel 1 and Channel 40
If the SWR is higher on 1, make the antenna longer
If the SWR is higher on 40, make the antenna shorter
Most antenna's are adjustable. Make small adjustments at a time.
SOURCE: radio shack trc-447 cb. no controls function,
The units have a reset code that protects the PLL brain from damage from voltage spikes. Ship it in and I'll get it back to normal function for you, providing the PLL has not been damaged.
Thanks,
Dodgem
www.Dodgem250.com
SOURCE: Looking for the manual for the Radio Shack TRC-447
Try this manual, it may or may not be the correct one, but it will be close enough to help you.
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