MFJ MFJ-1278 Скачать руководство пользователя страница 4

MFJ-1278 & MFJ-1278T Fast-Start Manual

3

4. Turn on the MFJ-1278.

5. Press the "Return" key several times in succession.

MFJ-1278 will sign-on with the sign-on message and end with the CMD: command prompt.

If  the  sign-on  message  is  garbled,  this  may  be  caused  by  the  wordlength  and  parity of  MFJ-
1278  not  matching  the  terminal  parameters.  Remove  the  cover  of  the  MFJ-1278  and  discon-
nect the shorting Jumper at JMP5. JMP 5 is located next to the battery. After about 2 minutes,
reconnect the shorting Jumper at JMP5.

Note: Removing JMP 5 disconnects the memory backup battery and resets all MFJ-127S para-
meters to default values. The wordlength and parity default values of the MFJ-1278 are 8 bits
and no parity. This matches the terminal parameters äs suggested above in step 3.

6. After the MFJ-1278 has signed on and the CMD: command prompt is displayed, type "Display"

and press "Return" key.

MFJ-1278 will display a long list of parameter and end with the CMD: command prompt.

The above procedure verifies that the MFJ-1278 is communicating with your Computer.

C.

Radio Interface

The first step in connecting the MFJ-1278 is to wire a cable to connect the MFJ-1278 Radio Port to
the microphone or accessory connector of the radio. The radio cable supplied with your MFJ-1278
has one end already wired with a 5-pin DIN connector. You will need to wire the other connector
to this cable to fit your radio.

MFJ  offers  optional  pre-assembled  cable  to  connect  the  MFJ-1278  to  some  radios.  Contact  MFJ
dealer  or  MFJ  for  more  information  about  these  pre-assembled  cables.  Also  available  from  MFJ
dealer or from MFJ is a "TNC-to-Microphone" switch box (MFJ-1272B) which allows you to switch
your  radio  between  using  the  MFJ-1278  or  using  the  microphone  without  disconnecting  cables.
Contact  MFJ  or  MFJ  dealer  for  more  information  concerning  this  TNC/MIC  switch  box.  If  pre-as-
sembled cable or switch box is not available you must wire a cable to fit your radio.

IMPORTANT:  The  audio  input  to  the  MFJ-1278  must  be  fed  though  pin  4  of  the  MFJ-1278  radio
Port. DO NOT feed audio input though the Speaker jack in the rear of the MFJ-1278.

The Speaker Jack is used to connect a Speaker. It is NOT an audio input.

1. Wire the radio cable to MFJ-1278 as shown by the following diagram:

Radio Port Cable

Содержание MFJ-1278

Страница 1: ...our new MFJ 1278 1278T Multi Mode Data Controller between your radio and computer CAUTION Read all Instructions Before Operating Equipment MFJ ENTERPRISES INC P O BOX 494 MISSISSIPPI STATE MS 39762 US...

Страница 2: ...s of the Fast Start manual Your MFJ Starter Pack consists of terminal Software and a serial cable to connect between the MFJ 1278 and your Computer The Starter Packs available are MFJ 1289 for IBM and...

Страница 3: ...8 instruction manual Chapter 2 Computer Interfacing to verify that the cable you are using is cor rectly wired WARNING IMPROPERLY WIRED CABLE COULD DAMAGE YOUR MFJ 1278 AND OR YOUR COM PUTER 1 Connect...

Страница 4: ...your Computer C Radio Interface The first step in connecting the MFJ 1278 is to wire a cable to connect the MFJ 1278 Radio Port to the microphone or accessory connector of the radio The radio cable su...

Страница 5: ...SK Operation this connection can be made thru the use of the TTL connector in the rear panel of the MFJ 1278 Only two lines Pin 8 FSK and Pin 3 ground are needed in making the FSK connection to your r...

Страница 6: ...ad the terminal program and make sure that the terminal program Parameters are set as described earlier 6 Turn on the MFJ 1278 Press the Return key several times in succession MFJ 1278 will sign on wi...

Страница 7: ...e set to operate 1200 baud packet d To enter SSTV mode type MODE TV CR MFJ 1278 will be set to operate SSTV in the 8 5 second format Abbreviation for all the MODEs are as follows MODE VP for VHF packe...

Страница 8: ...controls are located on the left side of the MFJ 1278 With a small screw driver turn the transmit control fully counter clockwise minimum 5 Slowly turn it clockwise increase until no increase in audio...

Страница 9: ...al modem MFJ 2400 can be pur chased and installed Installation is simple your MFJ 1278 is equipped with all connectors neces sary to make this Installation without modification or soldering With the 2...

Страница 10: ...nsmit audio on the 2400 board is set by adjusting R38 next to T2 on the 2400 modem board Transmit audio for the 1278T is preset at the factory to match the audio level of the 1200 modem on the MFJ 127...

Страница 11: ...e display is in the following format Speed Confidence Factor Speed Data Bits RXInvert On Off A typical result will look like this 80 baud 90 Confidence 75 baud 7 bits RXInvert Off After the result is...

Страница 12: ...gnal Note that when using ASA noise will have major effect on the degree effectiveness for ASA V COMMAND UPDATE The following commands have been added since the printing of the MFJ 1278 4th Edition In...

Страница 13: ...es the current PIXtones values When n 1 to 9 TXBRight assumes PIXtones values as follows n PIXtones 0 assumes the current PIXtones values 1 BC 98 A8 88 B0 90 A0 80 2 BA B8 A8 88 B0 90 A0 80 3 B9 BA B8...

Страница 14: ...it appears that the Station you re working is unable to successfully receive your packets despite your adequate signal This failure of some TNCs to receive TXDIDDLEd packets may be a result of some So...

Страница 15: ...this information with the instruction manual of your radio MFJ Enter prises Inc is not responsible for any inaccuracy of the information provided by the diagrams and charts in this instruction manual...

Страница 16: ...MFJ 1278 MFJ 1278T Fast Start Manual 15 B 4 pin Microphone Connector...

Страница 17: ...MFJ 1278 MFJ 1278T Fast Start Manual 16 C Handheld Radio Connectors...

Страница 18: ...MFJ 1278 MFJ 1278T Fast Start Manual 17 D Using the Accessory Jack...

Страница 19: ...pin 8 Tip Lg pin 4 pin 6 7 Sleeves YAESU FT 208 FT x09 FT x3 FT 727 4 pin 8 pin HTs HTs HTs HTs pin 2 pin 8 pin 1 Tip Sm pin 3 pin 6 pin 3 Tip Sm Speaker Speaker pin 2 Tip Lg pin 1 pin 7 pin 4 Sleeve...

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