https://hfunderground.com/wiki/index.php?action=history&feed=atom&title=TelemetryTelemetry - Revision history2026-10-21T19:23:26ZRevision history for this page on the wikiMediaWiki 1.16.5https://hfunderground.com/wiki/index.php?title=Telemetry&diff=18680&oldid=prevR4002 at 12:08, 13 August 20262026-08-13T12:08:47Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 12:08, 13 August 2026</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices such as [[Wi-Fi|WiFi / Wi-Fi]] based systems, [[DECT]] based systems operating in the 1.7 GHz - 1.9 GHz range, mesh networks on license free spectrum such as the [[HF_pagers|26-28 MHz / 27 MHz or 11 meter band]], 900 MHz, 2.4 GHz, 5.8 GHz, and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97|RCRS]], various VHF and UHF business radio service frequencies for fixed radio links, other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as [[PMR446]], [[LPD433]], [[SRD860]], the VHF low band [[Italian_43_MHz_VHF_CB|Italian 43 MHz license free voice/data service]], and so on to specialty services including the [[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] aircraft bands (aeronautical services) including [[VHF_airband|VHF Data Link or VDL system]], the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices such as [[Wi-Fi|WiFi / Wi-Fi]] based systems, [[DECT]] based systems operating in the 1.7 GHz - 1.9 GHz range, mesh networks on license free spectrum such as the [[HF_pagers|26-28 MHz / 27 MHz or 11 meter band]], 900 MHz, 2.4 GHz, 5.8 GHz, and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97|RCRS]], various VHF and UHF business radio service frequencies for <ins class="diffchange diffchange-inline">[[Business_Radio#VHF_Mid_Band_72-76_MHz|</ins>fixed<ins class="diffchange diffchange-inline">]] </ins>radio links, other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as [[PMR446]], [[LPD433]], [[SRD860]], the VHF low band [[Italian_43_MHz_VHF_CB|Italian 43 MHz license free voice/data service]], and so on to specialty services including the [[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] aircraft bands (aeronautical services) including [[VHF_airband|VHF Data Link or VDL system]], the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=18679&oldid=prevR4002 at 12:07, 13 August 20262026-08-13T12:07:59Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 12:07, 13 August 2026</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices such as [[Wi-Fi|WiFi / Wi-Fi]] based systems, [[DECT]] based systems operating in the 1.7 GHz - 1.9 GHz range, mesh networks on license free spectrum such as the [[HF_pagers|26-28 MHz / 27 MHz or 11 meter band]], 900 MHz, 2.4 GHz, 5.8 GHz, and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97|RCRS]], other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as [[PMR446]], [[LPD433]], [[SRD860]], the VHF low band [[Italian_43_MHz_VHF_CB|Italian 43 MHz license free voice/data service]], and so on to specialty services including the [[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] aircraft bands (aeronautical services) including [[VHF_airband|VHF Data Link or VDL system]], the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices such as [[Wi-Fi|WiFi / Wi-Fi]] based systems, [[DECT]] based systems operating in the 1.7 GHz - 1.9 GHz range, mesh networks on license free spectrum such as the [[HF_pagers|26-28 MHz / 27 MHz or 11 meter band]], 900 MHz, 2.4 GHz, 5.8 GHz, and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97|RCRS]]<ins class="diffchange diffchange-inline">, various VHF and UHF business radio service frequencies for fixed radio links</ins>, other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as [[PMR446]], [[LPD433]], [[SRD860]], the VHF low band [[Italian_43_MHz_VHF_CB|Italian 43 MHz license free voice/data service]], and so on to specialty services including the [[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] aircraft bands (aeronautical services) including [[VHF_airband|VHF Data Link or VDL system]], the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=18666&oldid=prevR4002 at 12:42, 12 August 20262026-08-12T12:42:23Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 12:42, 12 August 2026</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices such as [[Wi-Fi|WiFi / Wi-Fi]] based systems, [[DECT]] based systems operating in the 1.7 GHz - 1.9 GHz range, mesh networks on license free spectrum such as 900 MHz, 2.4 GHz, 5.8 GHz, and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97|RCRS]], other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as [[PMR446]], [[LPD433]], [[SRD860]], the VHF low band [[Italian_43_MHz_VHF_CB|Italian 43 MHz license free voice/data service]], and so on to specialty services including the [[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] aircraft bands (aeronautical services) including [[VHF_airband|VHF Data Link or VDL system]], the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices such as [[Wi-Fi|WiFi / Wi-Fi]] based systems, [[DECT]] based systems operating in the 1.7 GHz - 1.9 GHz range, mesh networks on license free spectrum such as <ins class="diffchange diffchange-inline">the [[HF_pagers|26-28 MHz / 27 MHz or 11 meter band]], </ins>900 MHz, 2.4 GHz, 5.8 GHz, and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97|RCRS]], other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as [[PMR446]], [[LPD433]], [[SRD860]], the VHF low band [[Italian_43_MHz_VHF_CB|Italian 43 MHz license free voice/data service]], and so on to specialty services including the [[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] aircraft bands (aeronautical services) including [[VHF_airband|VHF Data Link or VDL system]], the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=16579&oldid=prevR4002 at 18:25, 27 September 20242024-09-27T18:25:30Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 18:25, 27 September 2024</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices <del class="diffchange diffchange-inline">and </del>and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97|RCRS]], other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as [[PMR446]], [[LPD433]], [[SRD860]] and so on to specialty services including the [[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] aircraft bands (aeronautical services) including [[VHF_airband|VHF Data Link or VDL system]], the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices <ins class="diffchange diffchange-inline">such as [[Wi-Fi|WiFi / Wi-Fi]] based systems, [[DECT]] based systems operating in the 1.7 GHz - 1.9 GHz range, mesh networks on license free spectrum such as 900 MHz, 2.4 GHz, 5.8 GHz, </ins>and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97|RCRS]], other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as [[PMR446]], [[LPD433]], [[SRD860]]<ins class="diffchange diffchange-inline">, the VHF low band [[Italian_43_MHz_VHF_CB|Italian 43 MHz license free voice/data service]], </ins>and so on to specialty services including the [[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] aircraft bands (aeronautical services) including [[VHF_airband|VHF Data Link or VDL system]], the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=16578&oldid=prevR4002 at 18:21, 27 September 20242024-09-27T18:21:47Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 18:21, 27 September 2024</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 3:</td>
<td colspan="2" class="diff-lineno">Line 3:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The remote source may be a fixed station or stations, mobile, handheld, portable, airborne or any other type of location, system or device, ranging from survey equipment to [[MURS|dog collar]] GPS tracking systems to [[UAV_Frequency_Bands|drones]] (UAV systems, UAS, quadcopters, etc.), </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The remote source may be a fixed station or stations, mobile, handheld, portable, airborne or any other type of location, system or device, ranging from survey equipment to [[MURS|dog collar]] GPS tracking systems to [[UAV_Frequency_Bands|drones]] (UAV systems, UAS, quadcopters, etc.), </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>That data is then transmitted via digital radio modes to a receive location. It may be a simple as on-off keying (OOK, another way of saying [[CW]]), [[Emission_Designator#Emission_Designators|FSK, PSK, MFSK or more]] complex digital modes. Telemetry is generally classed within the much larger [[Signal_Identification#DATA_Signals|signal identification]] category of "data" or "digital modes". Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices and and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control|RCRS]], [[PMR446]] and so on to <del class="diffchange diffchange-inline">speciality </del>services including the aircraft bands (aeronautical services) including VHF Data Link, the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>That data is then transmitted via digital radio modes to a receive location. It may be a simple as on-off keying (OOK, another way of saying [[CW]]), [[Emission_Designator#Emission_Designators|FSK, PSK, MFSK or more]] complex digital modes. Telemetry is generally classed within the much larger [[Signal_Identification#DATA_Signals|signal identification]] category of "data" or "digital modes". </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices and and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control<ins class="diffchange diffchange-inline">#RC_Transmitter_Regulations_-_Part_15.2C_Part_95_and_Part_97</ins>|RCRS]], <ins class="diffchange diffchange-inline">other license free short range low power services including various [[Part_15|Part 15]] services, and services not available in the United States such as </ins>[[PMR446<ins class="diffchange diffchange-inline">]], [[LPD433]], [[SRD860</ins>]] and so on to <ins class="diffchange diffchange-inline">specialty </ins>services including the <ins class="diffchange diffchange-inline">[[HF_marine|MF/HF]] SSB and [[VHF_marine|VHF]] maritime mobile services (marine bands), including the VHF based [[Radio_beacon#AIS_beacons|AIS]] system, the [[HF_airband|various]] </ins>aircraft bands (aeronautical services) including <ins class="diffchange diffchange-inline">[[VHF_airband|</ins>VHF Data Link <ins class="diffchange diffchange-inline">or VDL system]]</ins>, the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=16137&oldid=prevR4002 at 12:25, 30 March 20242024-03-30T12:25:47Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 12:25, 30 March 2024</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>That data is then transmitted via digital radio modes to a receive location. It may be a simple as on-off keying (OOK, another way of saying [[CW]]), [[Emission_Designator#Emission_Designators|FSK, PSK, MFSK or more]] complex digital modes. Telemetry is generally classed within the much larger [[Signal_Identification#DATA_Signals|signal identification]] category of "data" or "digital modes". Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">The remote source may be a fixed station or stations, mobile, handheld, portable, airborne or any other type of location, system or device, ranging from survey equipment to [[MURS|dog collar]] GPS tracking systems to [[UAV_Frequency_Bands|drones]] (UAV systems, UAS, quadcopters, etc.), </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>That data is then transmitted via digital radio modes to a receive location. It may be a simple as on-off keying (OOK, another way of saying [[CW]]), [[Emission_Designator#Emission_Designators|FSK, PSK, MFSK or more]] complex digital modes. Telemetry is generally classed within the much larger [[Signal_Identification#DATA_Signals|signal identification]] category of "data" or "digital modes". Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. <ins class="diffchange diffchange-inline">Complexity, range, bandwidth and license requirements also run the entire gamut from low power short range devices / low power devices and and [[Part 15]] systems to license free and simple license requirement personal radio services such as [[FRS]], [[GMRS]], [[MURS]], the [[Remote_Control|RCRS]], [[PMR446]] and so on to speciality services including the aircraft bands (aeronautical services) including VHF Data Link, the UHF ADS-B system (960 MHz - 1215 MHz) and hundreds of other systems. </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=15298&oldid=prevR4002 at 14:39, 28 June 20232023-06-28T14:39:03Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 14:39, 28 June 2023</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>That data is then transmitted via digital radio modes to a receive location. Telemetry is generally classed within the much larger category of "data" or "digital modes". Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. <del class="diffchange diffchange-inline"> </del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>That data is then transmitted via digital radio modes to a receive location. <ins class="diffchange diffchange-inline">It may be a simple as on-off keying (OOK, another way of saying [[CW]]), [[Emission_Designator#Emission_Designators|FSK, PSK, MFSK or more]] complex digital modes. </ins>Telemetry is generally classed within the much larger <ins class="diffchange diffchange-inline">[[Signal_Identification#DATA_Signals|signal identification]] </ins>category of "data" or "digital modes". Telemetry signals are found across the entire RF spectrum, including MF, HF, [[VHF_/_UHF_Radio|VHF, UHF]] and higher. <ins class="diffchange diffchange-inline"> </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=15297&oldid=prevR4002 at 14:36, 28 June 20232023-06-28T14:36:34Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 14:36, 28 June 2023</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>That data is then transmitted via digital radio modes to a receive location. Telemetry is generally classed within the much larger category of "data" or "digital modes". Telemetry signals are found across the entire RF spectrum, including MF, HF, VHF, UHF and higher. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>That data is then transmitted via digital radio modes to a receive location. Telemetry is generally classed within the much larger category of "data" or "digital modes". Telemetry signals are found across the entire RF spectrum, including MF, HF, <ins class="diffchange diffchange-inline">[[VHF_/_UHF_Radio|</ins>VHF, UHF<ins class="diffchange diffchange-inline">]] </ins>and higher. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=15296&oldid=prevR4002 at 14:36, 28 June 20232023-06-28T14:36:10Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 14:36, 28 June 2023</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure. <ins class="diffchange diffchange-inline"> </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">That data is then transmitted via digital radio modes to a receive location. Telemetry is generally classed within the much larger category of "data" or "digital modes". Telemetry signals are found across the entire RF spectrum, including MF, HF, VHF, UHF and higher. </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category: Transmission modes]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category: Transmission modes]]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category: VHF/UHF Radio Services]]</ins></div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Telemetry&diff=15288&oldid=prevR4002 at 14:27, 28 June 20232023-06-28T14:27:00Z<p></p>
<table style="background-color: white; color:black;">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr valign='top'>
<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 14:27, 28 June 2023</td>
</tr><tr><td colspan="2" class="diff-lineno">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: Sensors at the source measure either electrical data, such as voltage and current, or physical data, such as temperature and pressure.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category: Transmission modes]]</ins></div></td></tr>
</table>R4002