Small and simple VHF low TV transmitter --------------------------------------- A very simple, video only TV transmitter that accepts baseband video input, like what comes from a small CCD camera. Notes ~~~~~ - Build on copper clad PC board - Follow all the rules in the ARRL handbook for free running oscillator design - You'll need a frequency counter to tune L1 and C1 to your particular frequency - L1 is approximately 6-8 turns of 24 gauge on 1 cm diameter air coil - May be powered by a 9 volt battery if needed - Antenna length is approximately 2878 / Fmhz inches Channel L1 (uH) C1 (pF) ------- ------- ------- 2 0.829804 10 3 0.675193 10 4 0.560087 10 5 0.424466 10 6 0.365487 10 Frequencies (in MHz) ~~~~~~~~~~~~~~~~~~~~ (Tune L1 & C1 to this) Broadcast Frequency Picture Color Sound TV Channel Range Carrier Subcarrier Carrier ---------- --------- ------- ---------- ------- 2 54 - 60 55.25 58.83 59.75 3 60 - 66 61.25 64.83 65.75 4 66 - 72 67.25 70.83 71.75 5 76 - 82 77.25 80.83 81.75 6 82 - 88 83.25 86.83 87.75