To receive digital TV signals from all stations, it is important that your antenna be able to receive both VHF channels (channels 2-13) and UHF channels (channels 14- 51). Some antennas only provide good reception of VHF or UHF channels, but not both.
Greeting Card Envelope Size: 5.25 x 7.25 Note Card Envelope Size: 4.375 x 5.75. When creating your design file, make the page size equal to the size of the envelope. The text for your return address should not be closer than 5/16 or .3125 from the edge of the envelope. U.S. Mail Layout Guides. Greeting Card Envelope Note Card Envelope.
The U.S. Postal Service sells envelopes in sizes ranging from 5-by-10 inches all the way up to 11 5/8-by-15 1/8 inches. Most of their envelopes are dedicated to Priority Mail for items needing urgent delivery. The Postal Service also sells shipping boxes for larger items.