Motorola+VARA FM

Motorolan 128 kanavaiset GM sarjan radiot soveltuvat hyvin VARA FM siirtoon filtteröimättömän audion ulostulon ja sisääntulon ansiosta. Maksimi 25,210 bps ei ole este motorolille. Pullonkaulaksi tulee äänikortti ennemmin kuin radio.

Accessory liittimen sijainti kaikissa motorola radioissa.

16- pinninen Accessory liitin 4 ja 128 kanavaisissa radioissa :

PinNameType4-Channel128- Channel
1SPKR-Analogue Outputxx
2Ext Mic AudioAnalogue Inputxx
3GP1Digital Inputxx
4GP2Digital Outputx
5Flat Tx AudioAnalogue Inputx
6BUS+Digital i/oxx
7GNDGNDxx
8GP3Digital i/ox
9GP4Digital ip capturex
10Ignition SenseDigital Inputxx
11Rx AudioAnalogue Outputx
12GP5Digital i/ox
13**SW B+/GNDAnalogue outputx
14GP6Digital i/ox
15RSSIAnalogue Outputxx
16SPKR+Analogue Outputxx
Vihreällä korostettu tarvittavat pinnit

Pin 1. – Speaker – audio

Speaker – and Speaker + (Pin 16) are used to connect an external speaker. The audio PA is a bridge amplifier with a minimum load resistance of 3.2 ohms. The internal speaker can be disabled by removing the control head. Disconnect the internal speaker and assemble the control head back to the radio.

Pin 2. – Microphone audio

This microphone signal input is common with the microphone signal input on the microphone connector and is connected to the rtiicrophone path input of the AFIC. The nominal input level is 80mV for 60% deviation. The DC impedance is 1100 ohms and the AC impedance is 1000 ohms Note: Only one microphone should be connected at any one time.

Pin 3. – General Purpose 1 (GP 1)

This is a digital input only. The RSS details which functions may be assigned to this pin by the codeplug. The primary use for this pin will be external PTT. (See Note 1).

Pin 4. – General purpose 2 (GP2)

This is a digital output only The RSS details which functions may be assigned to this pin by the codeplug. The primary use for this pin is as external alarm output.

Pin 5. – Flat TX audio

This input is for injecting signals into the transmit path that should not be filtered, e.g. the output of a modem. The nominal input level is l5OmVRMS for 60% deviation. The impedance is greater than 25kohms.

Pin 6. – BUS+

This connects to the radio’s SCI serial bus which is used for programming and tuning the radio. The line is also available at the microphone connector Pin 7.

Pin 7. – Ground

Used as ground for both analogue and digital signals.

Pin B. – General purpose 3 (GP3)

This is a digital input/output and is also available on the internal option connector (JOl 03:7). The RSS details which functions may be assigned to this pin by the codeplug.

Pin 9. – General purpose 4 (GP4)

This is a digital input only. It is also available on the internal option connector (JO102:7) and is used in input capture mode when a serial type option board is fitted. The RSS details which functions may be assigned to this pin by the codeplug.

Pin 10.- ignition sense

Connecting this line to the ignition line of the vehicle will automatically turn the radio on when the ignition of the vehicle is turned on. When ignition is connected, the radio cannot be turned off as long as the ignition is active. When this line is at OV or not connected, power on/off is under manual control. Resistor R0423, 4.7ki2, which is not fifted as standard will cause the radio to be permanently on whenever 12V is connected to the main power connector.

Pin I I.- RX Audio Discriminator/Filtered (Analogue output)

The signal routed to this pin is controlled by AFIC. There are two possible outputs; continuous discriminator audio or continuous filtered RX audio output of AFIC. The output mode can be selected by the RSS, however, this mode may be overridden during certain tuning operations. For discriminator audio, the nominal ouput level is 330mVRMS for 60% deviation. The impedance is 600ohms. For filtered audio, the nominal ouput level is 600mV for 60% deviation. The impedance is 600ohms.

Pin 12.- General purpose 5 (GP5)

This is a digital input/output and is also available on the internal option connector (JOl 03:8). The RSS details which functions may be assigned to this pin by the codeplug.

Pin 13.- Switched B+ / Analogue Ground

The output of this pin may be configured by a solder link within the radio. Switched B+ is the default. The current limiting resistor (RO455) default is O ohm, therefore extreme care must be taken to avoid short circuiting this output to ground, which will damage the radio.

CAUTION:The maximum continuous current allowed is 3OOmA. A suitable external fuse must be installed into the lead to pin 13 to avoid damage to the radio.

Pin 14.- General purpose 6 (GP6)

This is a digital input output and is also available on the internal option connector (J0102:3). The RSS details which functions may be assigned to this pin by the codeplug.

Pin 15.- RSSI

Received Signal Strength Indication, buffered analogue voltage.

Pin 16.- Speaker+ audio

Positive output of radio’s audio PA (see Pin 1).

Motorola liittimen ohjekirja.

16 pinninen Accessory liitin. Tästä kuvasta on helppo käsittää oikeat pinnijärjestykset
Motorola GM350 128 kanavaisen radion ohjelmointisoftan I/O pinnien konffaus. Pinni 3 on PTT ja pinni 11 on vastaanoton filtteröimätön ulostulo.

Olemme testanneet signalink USB:tä ja DRA-50:tä Motorola GM350 ja GM950 kanssa ja kummallakin olemme päässeet korkeimpaan nopeuteen mitä VARA FM voi siirtää eli 25,210 bps. Signalinkeissä joissa on punaiset muuntajat ei pitäisi päästä korkeimpaan nopeuteen, mutta kyllä pääsee!

Motorola Accessory liitin, johdot valmiilla liittimillä, puristettavat liittimet, 2kpl nippusiteitä ja pinnien irroitus työkalu.
Vara FM käytännössä ja välissä monta km. Signalink USB (vanhoilla muuntajilla) ja Motorolan GM350.
VARA FM Käytännössä ja välissä monta km. Huomaa konstellaation terävyys.
VARA FM Käytännössä ja välissä monta km.
Nopeasti tehty kaapeli Signalink USB:lle ja Motorolalle normaalista ethernet kaapelista.
Johtimet lähempää.

Signalinkkiin on jumpperoitava radio kohtaisesti pinnijärjestys, mutta itsetehdyissä kaapeleissa voi järjestyksen kääntää kaapelissa, eli vaikka Yaesulle jumpperoitu Signalink käy Motorolaan jos kaapelin tekee itse.

Porvoon RadioHarrastajat Ry.