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Single VCO's will not tune 1 MHz to 30 MHz without switching tuning elements. You will need to use a VCO that will tune say 50-79 MHz and down convert by mixing with a crystal osc of 49MHz
Of course, you can design a wide band VCO based on a variable relaxation oscillator principle, similar to a 4046 VCO. But I guess, you won't be satified with it's phase noise? Unfortunately, you said 1.6 - 30 MHz without a full specification.
see this. **broken link removed**
A switched crystal approach could be a solution if you have many crystals. Dead steady in frequency and ultra low phase noise.
Also this, if you prefer a vfo. **broken link removed**
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