Ero sivun ”R58.en” versioiden välillä

Radioamatööriwikistä
Siirry navigaatioon Siirry hakuun
>Lakki
>Lakki
Rivi 13: Rivi 13:
| [[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]]
|}
|}
=== Parameters: ===
=== Parameters: ===



Versio 15. elokuuta 2006 kello 10.34

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.

Solder points for the components
Components laid in place

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.

CTCSS generation/encoding for R58 repeater

CTCSS decoder installation for R58 (both repeater and non-repeater usage)

General-purpose outputs

DTMF decoder installation for R58 (both repeater and non-repeater usage)

Wiring R58 for external controller usage (both repeater and simplex gateway usage)