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Updated for readability
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@ -33,16 +33,17 @@ Please understand what you're doing if trying to break out of official frequenci
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Here's what the [manufacturer of the chip (CC1101) says](https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1120743/cc1101-operation-outside-datasheet-frequencies/4154832) about going outside the limits:
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Here's what the [manufacturer of the chip (CC1101) says](https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1120743/cc1101-operation-outside-datasheet-frequencies/4154832) about going outside the limits:
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```
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```
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The frequency range of the chip is always tested in the verification tests and there is always some design margin included before
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The frequency range of the chip is always tested in the verification tests and there is always some design margin
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the VCO and/or PLL has problems operating for a specified frequency range. Working outside the frequency range can cause issues
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included before the VCO and/or PLL has problems operating for a specified frequency range. Working outside the
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with the VCO and/or PLL and/or divider not operating correctly. If the VCO is operating outside it's standard frequency range,
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frequency range can cause issues with the VCO and/or PLL and/or divider not operating correctly. If the VCO is
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there are risks of unwanted emissions and no oscillation. The PLL can also fail to lock if operating outside it's standard
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operating outside it's standard frequency range, there are risks of unwanted emissions and no oscillation. The PLL
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frequency range and will still apply power to the antenna.
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can also fail to lock if operating outside it's standard frequency range and will still apply power to the antenna.
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Risks with antenna mismatch are increased harmonics, reduced output power and increased current consumption. Generally, the antenna
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Risks with antenna mismatch are increased harmonics, reduced output power and increased current consumption.
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mismatch can be large and the output stage will not be damaged when presented with a large mismatch for short periods of time.
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Generally, the antenna mismatch can be large and the output stage will not be damaged when presented with a large
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However, if the antenna mismatch is very poor for long periods of time, then this can effect the longevity of the chip especially
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mismatch for short periods of time. However, if the antenna mismatch is very poor for long periods of time, then
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if further stressed with maximum voltage and maximum temperature. Recommend keeping VSWR better than 5:1 for worst case scenarios.
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this can effect the longevity of the chip especially if further stressed with maximum voltage and maximum temperature.
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Recommend keeping VSWR better than 5:1 for worst case scenarios.
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```
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```
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You'll need to edit some code and recompile if you want to break outside of the officially supported frequencies. [Proceed with caution.](https://github.com/UberGuidoZ/Flipper/blob/main/Sub-GHz/Restaurant_Pagers/SubGHz_changes.md)
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You'll need to edit some code and recompile if you want to break outside of the officially supported frequencies. [Proceed with caution.](https://github.com/UberGuidoZ/Flipper/blob/main/Sub-GHz/Restaurant_Pagers/SubGHz_changes.md)
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@ -98,4 +99,4 @@ So, here it is. All donations of *any* size are humbly appreciated.<br>
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![Flipper_Clap](https://user-images.githubusercontent.com/57457139/183561789-2e853ede-8ef7-41e8-a67c-716225177e5d.jpg) ![Flipper_OMG](https://user-images.githubusercontent.com/57457139/183561787-e21bdc1e-b316-4e67-b327-5129503d0313.jpg)
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![Flipper_Clap](https://user-images.githubusercontent.com/57457139/183561789-2e853ede-8ef7-41e8-a67c-716225177e5d.jpg) ![Flipper_OMG](https://user-images.githubusercontent.com/57457139/183561787-e21bdc1e-b316-4e67-b327-5129503d0313.jpg)
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Donations will be used for hardware (and maybe caffeine) to further testing!<br>
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Donations will be used for hardware (and maybe caffeine) to further testing!<br>
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![UberGuidoZ](https://cdn.discordapp.com/emojis/1000632669622767686.gif)
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![UberGuidoZ](https://cdn.discordapp.com/emojis/1000632669622767686.gif)
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