Will this measure the OTA signal for hdtv antenna?

You need a slight dish with service that that you need to pay for. Ex dish. To answer your question no .

Will this work with swm?

Yes, I helped my brother set his up & worked fine.

Does it work with direct tv

The device goes between your satellite receiver (doesn't matter which provider) and the satellite dish. The finder needle will help you aim the dish to a satellite for your given system. When not using this device you need another person to watch the connected TV to determine when you are pointed at the proper satellite.

ASIN	B0017YCZOC
Antenna	Satellite
AntennaDescription	Satellite
Best Sellers Rank	#358,535 in Electronics ( See Top 100 in Electronics ) #59 in Satellite TV Dish Satellite Finders
Brand	Winegard
Built-In Media	Winegard SF-1000 Satellite Finder Meter
Color	Black
Customer Reviews	3.5 out of 5 stars 142 Reviews
Global Trade Identification Number	00615798310493
Impedance	75 Ohms
Item Dimensions L x W x H	7.25"L x 4.25"W x 7.25"H
Item Type Name	Winegard SF-1000 Satellite Finder Meter
Manufacturer	Winegard Company
Number of Channels	1
Product Dimensions	7.25"L x 4.25"W x 7.25"H
UPC	168141250774 803983024076 777786197858 615798310493
Warranty Description	NINETY DAYS

Winegard SF-1000 Satellite Finder Meter

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Description

Specifications

Common Questions