{ "numMessagesInTopic": 4, "nextInTime": 1072, "senderId": "Z5mXt9zTPbbikj6gRoAu8g0LtAkY1M9rw0Ex-J4RitWuFM7KCJc3N9I7pRQtb-yzff5prqJVRoSK5qFKQ1yH2kpj0D0", "systemMessage": false, "subject": "Re: [GE-Mpa] Re: External DEvice (ptt/mike) on m-pa 400 ericsson mod system with hamflash", "from": "Gary Peterson <NZ5V@...>", "authorName": "Gary Peterson", "msgSnippet": "No, no ability to clone. Must use RSS and PC Programmer to read, then write. Hamflash can NOT be used with the PC Programmer. Gary NZ5V", "msgId": 1071, "profile": "gs79602", "topicId": 1063, "spamInfo": { "reason": "0", "isSpam": false }, "replyTo": "LIST", "userId": 157218573, "messageBody": "
\n\n\n\n \n\n\n\nmany tks for this message.
\n
\nI have found the mic manual and in the schematic sheet the resistor
\nis a 3300+300 ohm
\nI have solder and the serial tx to ground and the system go very
\nwell!!!!
\nFor Charge the battery i use a old charger of motorola storno 4000
\nmodified for the contact of mpa.
\n
\nA question are possible cloned the frequency on bank 1-4 to other m-
\npa with the same firmware??
\n
\nMany tks
\nIf are possible y send the photo of my work on m-pa
\n
\nBye
\n
\n--- In GE-Mpa@yahoogroups. com,\n"ka1jfy" <walter.howard@ ...> wrote:
\n>
\n> The external connector is called a UDC, universal device connector.
\n> It can be used for many things besides the speaker/microphone.
\n> Because it is very versatile, there is a resistor that has to be
\nthere
\n> to tell the MPA what is connected to it.
\n>
\n> For a speaker mic, there is a resistance of 3,770 ohms from pin 9
\nto
\n> pin 1.
\n> Add that and then try the PTT again.
\n>
\n> If the list owner is OK with it, I can post a PDF of the
\nspeaker/mic
\n> maintenance manual..
\n>
\n> Walter
\n>
\n>
\n> --- In GE-Mpa@yahoogroups. com,\n"mediabocs" <spammail@> wrote:
\n> >
\n> > Hello, I have programmed my M-pa System with the optimal
\nsoftware ham
\n> > flash. Hour they are constructed the connector to me in order\nto
\n> > connect a microphone and a ptt external, like from handbook.\nBut
\nm-pa
\n> > it always does not work with ptt external but with ptt inner.\nI
\nhave
\n> > connected ptt between ground pin 1 and pin 5, but nothing\ndoes
\nnot
\n> > work. You have some news in merit in order to connect an
\nexternal
\n> > microphone? Thanks many
\n> > Mediabocs
\n> >
\n>
\n
\n