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.
Pick the standard size (or whatever size you want) and measure it. That way you know exactly which one you're designing for. I believe the standard ones are around 4in x 6in (one on side), which would make the full card around 8in x 6in. Thanks. I asked over here cuz well I was kind of lazy to go to the store to grab a card and measure it. I just use the double 5X7 post card size. It is 10X7 flat. You can get standard sized envelopes for these. Just do a Google search and you can find a manufactorer of these. For the printing of the cards, you can go to Post Card press and they will give you a quote for this.