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== CTCSS generation/encoding for non-repeater usage == | == CTCSS generation/encoding for non-repeater usage == | ||
Requires R58 firmware 3.Yz or greater. | |||
The RX front-end DAC can be used for generating CTCSS waveform for TX. The modification is easy and requires just two components, a polystyrene 100n capacitor and a 10k resistor to be installed on the A8 audio board beneath the P8 processor board. All settings are adjusted by the handset. | The RX front-end DAC can be used for generating CTCSS waveform for TX. The modification is easy and requires just two components, a polystyrene 100n capacitor and a 10k resistor to be installed on the A8 audio board beneath the P8 processor board. All settings are adjusted by the handset. | ||
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| [[Kuva:R58_RFC-CTCSS_A8N_100n_10k.jpg|none|thumb|300px|Components laid in place]] | | [[Kuva:R58_RFC-CTCSS_A8N_100n_10k.jpg|none|thumb|300px|Components laid in place]] | ||
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=== Parameters: === | === Parameters: === | ||
''<tt>PH:CtCGEn</tt>'' <tt>rFcdAc</tt> | '''<tt>PH:CtCGEn</tt>''' option <tt>rFcdAc</tt> selects the RX RFC DAC output to be used as CTCSS waveform generator during TX. | ||
'''<tt>PH:CtGAin</tt>''' sets the amplitude of the generated waveform. | |||
'''<tt>PH:CtHAnG</tt>''' sets the TOC time in millseconds. TOC eliminates the squelch crash at the receiving station, suspending the CTCSS tone transmission prior to the drop of the carrier. | |||
== CTCSS generation/encoding for R58 repeater == | == CTCSS generation/encoding for R58 repeater == | ||
Versio 15. elokuuta 2006 kello 11.32
Nokia Mobira R58 and subversions RB58, RC58 and RD58
This page is intended to be a collection of modifications for R58 series radio, to be used for both operating radios and R58's used as repeaters, duplex gateways etc.
CTCSS generation/encoding for non-repeater usage
Requires R58 firmware 3.Yz or greater.
The RX front-end DAC can be used for generating CTCSS waveform for TX. The modification is easy and requires just two components, a polystyrene 100n capacitor and a 10k resistor to be installed on the A8 audio board beneath the P8 processor board. All settings are adjusted by the handset.
Parameters:
PH:CtCGEn option rFcdAc selects the RX RFC DAC output to be used as CTCSS waveform generator during TX.
PH:CtGAin sets the amplitude of the generated waveform.
PH:CtHAnG sets the TOC time in millseconds. TOC eliminates the squelch crash at the receiving station, suspending the CTCSS tone transmission prior to the drop of the carrier.