12-09-2018, 08:24 AM
Wayne
I have used a TTL oscillator for years in an almost identical arrangement to the OZ2M arrangement (though not using a PCB, just a 5V TO-72 style regulator + stabilisation bypasses on in/out, an output coupling capacitor & no diodes - rats nest style). My 16MHz oscillator was salvaged from a computer motherboard so is not a TCXO and as frequency stable as Bo's is.
The exact frequency is not critical as most radios will tune below 1296.0 if the oscillator is low of 16.000000 - as most I have encountered seem to be. Good for 2M & 70CM too.
Doug
I have used a TTL oscillator for years in an almost identical arrangement to the OZ2M arrangement (though not using a PCB, just a 5V TO-72 style regulator + stabilisation bypasses on in/out, an output coupling capacitor & no diodes - rats nest style). My 16MHz oscillator was salvaged from a computer motherboard so is not a TCXO and as frequency stable as Bo's is.
The exact frequency is not critical as most radios will tune below 1296.0 if the oscillator is low of 16.000000 - as most I have encountered seem to be. Good for 2M & 70CM too.
Doug
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
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http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.