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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
C-Band Reception, UK and Europe
Titanium PLL C Band LNBs
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<blockquote data-quote="s-band" data-source="post: 969064" data-attributes="member: 407744"><p>The same apples to the Titanium. It may be due to the LNAs but I have suspicions that some differences are cause by the difference in probe positions. For circular, optimal plate position can win up to a dB. Comparing the lite to normal, each has a frequency range that is better than the other.</p><p></p><p> Yes but ignore this bit:</p><p></p><p>As I found out later, the critical thing was the bias to the downconverter chip which must not allow the input voltage to go below 0V so follow this recipe:</p><p></p><p></p><p>Setting the frequency without test gear will be a pain but if you set your SDR "ppm adjust" value correctly using an off-air reference, you could use the SDR to set the 25MHz TCXO by setting one of the harmonics that is present in the Titanium's IF output to an integral 25MHz.</p></blockquote><p></p>
[QUOTE="s-band, post: 969064, member: 407744"] The same apples to the Titanium. It may be due to the LNAs but I have suspicions that some differences are cause by the difference in probe positions. For circular, optimal plate position can win up to a dB. Comparing the lite to normal, each has a frequency range that is better than the other. Yes but ignore this bit: As I found out later, the critical thing was the bias to the downconverter chip which must not allow the input voltage to go below 0V so follow this recipe: Setting the frequency without test gear will be a pain but if you set your SDR "ppm adjust" value correctly using an off-air reference, you could use the SDR to set the 25MHz TCXO by setting one of the harmonics that is present in the Titanium's IF output to an integral 25MHz. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
C-Band Reception, UK and Europe
Titanium PLL C Band LNBs
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