-==== Frequency
-
- This configures which of the frequencies to use for
- both telemetry and packet command mode. Note that if
- you set this value via packet command mode, the
- TeleDongle frequency will also be automatically
- reconfigured to match so that communication will
- continue afterwards.
-
-==== RF Calibration
-
- The radios in every Altus Metrum device are calibrated
- at the factory to ensure that they transmit and
- receive on the specified frequency. If you need to
- you can adjust the calibration by changing this value.
- Do not do this without understanding what the value
- means, read the appendix on calibration and/or the
- source code for more information. To change a
- TeleDongle's calibration, you must reprogram the unit
- completely.
-
-==== Telemetry/RDF/APRS Enable
-
- Enables the radio for transmission during
- flight. When disabled, the radio will not
- transmit anything during flight at all.
-
-==== Telemetry baud rate
-
- This sets the modulation bit rate for data
- transmission for both telemetry and packet
- link mode. Lower bit rates will increase range
- while reducing the amount of data that can be
- sent and increasing battery consumption. All
- telemetry is done using a rate 1/2 constraint
- 4 convolution code, so the actual data
- transmission rate is 1/2 of the modulation bit
- rate specified here.
-
-==== APRS Interval
-
- How often to transmit GPS information via APRS
- (in seconds). When set to zero, APRS
- transmission is disabled.
- ifdef::altusmetrum[]
- This option is
- available on TeleMetrum v2 and TeleMega
- boards. TeleMetrum v1 boards cannot transmit
- APRS packets.
- endif::altusmetrum[]
- Note that a single APRS packet
- takes nearly a full second to transmit, so
- enabling this option will prevent sending any
- other telemetry during that time.
-
-==== APRS SSID
-
- Which SSID to report in APRS packets. By
- default, this is set to the last digit of the
- serial number, but can be configured to any
- value from 0 to 9.
-
-==== APRS Format
-
- Whether to send APRS data in Compressed or
- Uncompressed format. Compressed format is
- smaller and more precise. Uncompressed
- format is older, but may work better with your
- device. The Kenwood TH-D72 only displays
- altitude information with Uncompressed
- format, while the Yaesu FT1D only displays
- altitude with Compressed format. Test before
- you fly to see which to use.
-
-==== Callsign
-
- This sets the call sign included in each
- telemetry packet. Set this as needed to
- conform to your local radio regulations.
+ifdef::radio[]
+ ==== Frequency
+
+ This configures which of the frequencies to use for
+ both telemetry and packet command mode. Note that if
+ you set this value via packet command mode, the
+ TeleDongle frequency will also be automatically
+ reconfigured to match so that communication will
+ continue afterwards.
+
+ ==== RF Calibration
+
+ The radios in every Altus Metrum device are calibrated
+ at the factory to ensure that they transmit and
+ receive on the specified frequency. If you need to
+ you can adjust the calibration by changing this value.
+ Do not do this without understanding what the value
+ means, read the appendix on calibration and/or the
+ source code for more information. To change a
+ TeleDongle's calibration, you must reprogram the unit
+ completely.
+
+ ==== Telemetry/RDF/APRS Enable
+
+ Enables the radio for transmission during
+ flight. When disabled, the radio will not
+ transmit anything during flight at all.
+
+ ==== Limit transmit to 10mW
+
+ Reduces transmit power to no more than 10mW. This is
+ useful when operating under some UK radio regulations.
+
+ ==== Telemetry baud rate
+
+ This sets the modulation bit rate for data
+ transmission for both telemetry and packet
+ link mode. Lower bit rates will increase range
+ while reducing the amount of data that can be
+ sent and increasing battery consumption. All
+ telemetry is done using a rate 1/2 constraint
+ 4 convolution code, so the actual data
+ transmission rate is 1/2 of the modulation bit
+ rate specified here.
+
+ ==== APRS Interval
+
+ How often to transmit GPS information via APRS
+ (in seconds). When set to zero, APRS
+ transmission is disabled.
+ ifdef::altusmetrum[]
+ This option is
+ available on TeleMetrum v2 or newer and TeleMega
+ boards. TeleMetrum v1 boards cannot transmit
+ APRS packets.
+ endif::altusmetrum[]
+ Note that a single APRS packet
+ takes nearly a full second to transmit, so
+ enabling this option will prevent sending any
+ other telemetry during that time.
+
+ ==== APRS SSID
+
+ Which SSID to report in APRS packets. By
+ default, this is set to the last digit of the
+ serial number, but can be configured to any
+ value from 0 to 9.
+
+ ==== APRS Format
+
+ Whether to send APRS data in Compressed or
+ Uncompressed format. Compressed format is
+ smaller and more precise. Uncompressed
+ format is older, but may work better with your
+ device. The Kenwood TH-D72 only displays
+ altitude information with Uncompressed
+ format, while the Yaesu FT1D only displays
+ altitude with Compressed format. Test before
+ you fly to see which to use.
+
+ ==== APRS Offset
+
+ The delay from the top of the minute before sending
+ the first APRS packet of the minute. Coordinating
+ values for this parameter between multiple devices can
+ allow a single receiver to reliably receive APRS
+ packets from multiple devices. Note that this offset only
+ takes effect while the GPS signal is locked so that the
+ transmitting device knows the current time.
+
+ ==== Callsign
+
+ This sets the call sign included in each
+ telemetry packet. Set this as needed to
+ conform to your local radio regulations.
+endif::radio[]