In my area, digital channels share the same number like 30-1, 30-2 up to 30-5. How to setup that with this device? How dif analog vs digital works?

The digital channels 30-1, 30-2, 30-3 and above are technically on the same broadcast channel. In the antenna world, the broadcast channel is not necessarily the same as the number that shows up on your TV.In Detroit, where we are 4.1 is NBC and the sub-channels 4.2 and 4.3 come along with it. However it is broadcast on a channel VHF 7 in our area. You can use websites like antennapoint.com to find out the broadcast channel, which is often referred to as an RF channel or REAL channel. This device was designed after the digital transition, and is fully capable of finding and fine tuning.

Will it work in a home HD antenna in the attic? My works good, not great , I like to boost the signal & view the signal strength.

My Winegaurd RFl-342 works real good on boost signal and signal strength. I have a rotor antenna and you can see the different signal strength as you rotate the antenna for best reception and location of Tv repeaters. You will have to have a 12 volt system to power it. I use a 12 volt converter to power it.

Does this eliminate the need for digital box?

No, if your TV is not digital you will still need the converter.

Is there any other way to power this except hard-wired to a 12v line? maybe a battery method? i see there's something that looks like a mini usb input

Any nine to twelve volt DC power supply will power this. You can buy a 9v power block pretty cheap and cut the end off to connect it to the positive and negative terminals. be sure you do not reverse the polarity of your connection. This one can be used for other items also and the voltage is seletable. It has a two wire connector to wire your Winegard RFL 342; https://www.amazon.com/Belker-Universal-Adapter-Household-Electronics/dp/B078LSVVTB/ref=sxin_2_ac_d_rm?ac_md=0-0-ZGMgcG93ZXIgYWRhcHRlcg%3D%3D-ac_d_rm&keywords=dc+power+adapter&pd_rd_i=B078LSVVTB&pd_rd_r=84b189e7-55f0-4fd9-b5b1-604de65f6b16&pd_rd_w=Qkdx5&pd_rd_wg=QnAuo&pf_rd_p=e2f20af2-9651-42af-9a45-89425d5bae34&pf_rd_r=G237JW2PPH3MZCBXQ1HM&psc=1&qid=1574983317

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📡 Unlock flawless local TV—never miss a moment again!

COMPACT LIGHTWEIGHT - Sleek 4.5-inch design weighing under 3 ounces for effortless installation and portability.
AUDIO FEEDBACK CONTROL - Fine-tune volume to lock signals even when antenna placement is out of sight.
SEAMLESS COMPATIBILITY - Works flawlessly with all Winegard Sensar antennas, replacing your existing power supply.
PRECISION SIGNAL LOCK IN - Easily locate the strongest local broadcast with intuitive scan and seek modes.
CUSTOMIZABLE AMPLIFICATION - Adjust gain up to 10dB for crystal-clear HD or reduce interference near towers.

The Winegard RFL-332 SensarPro is a compact, lightweight TV signal strength meter designed to optimize your local digital broadcast reception. Featuring adjustable amplification up to 10dB, multiple scan modes, and audio feedback controls, it seamlessly integrates with all Winegard Sensar antennas while replacing your existing power supply. Engineered in the USA, it ensures fast, precise tuning for crisp HD viewing wherever you are.

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Manufacturer	Winegard
Brand	Winegard
Model	RFL-332
Item Weight	2.88 ounces
Product Dimensions	0.76 x 2.75 x 4.5 inches
Item model number	RFL-332
Manufacturer Part Number	RFL-332
OEM Part Number	RFL-332

Winegard RFL-332 SensarPro TV Signal Strength Meter, Black, 4.5 Inch

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