Return-Path: Delivered-To: craig@dapaero.com Received: from gator4254.hostgator.com by gator4254.hostgator.com with LMTP id ABaVLFwbYGRy6wQAcizydQ (envelope-from ) for ; Sat, 13 May 2023 18:21:00 -0500 Return-path: Envelope-to: craig@dapaero.com Delivery-date: Sat, 13 May 2023 18:21:00 -0500 Received: from mta-132a.oxsus-vadesecure.net ([135.148.117.230]:37933 helo=nmtao102.oxsus-vadesecure.net) by gator4254.hostgator.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.95) (envelope-from ) id 1pxyXs-001Rzb-5A for craig@dapaero.com; Sat, 13 May 2023 18:21:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; bh=GvEXx0pegqggc+R1thXJ+sQfiTMliEfTcnd/Tv vSC2s=; c=relaxed/relaxed; d=webcom.xion.oxcs.net; h=from:reply-to: subject:date:to:cc:resent-date:resent-from:resent-to:resent-cc: in-reply-to:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:list-owner:list-archive; q=dns/txt; s=mail1; t=1684020049; x=1684624849; b=nbtLkfEKCtHe/gluJ99zxaY0SNwMpWQuzMVFHci0J HwJPwNKMeKIhX8FCX8m1dLVw2EWAp0ANHevmFV2zr5PS86Ow3e8t1dch4H6xBIRLuvwiV6p 8N4fcgPI8Afn+WUANvouTquV2vA5Zxj+ymOSdPnHOlg3WT7FzXhTx9y+y9SDNO6oMEDxq2y 3+wc5S0lp0nuNmiXQMi6XK9K8TXv8uxrSS6fVqNzc44inBEKYO3DTCKm63gE5iJNb8BintF HtAVKa2Tw7Z8Lls0sKq7UOUlg4qw99v8XoA46FK9fuiUEJJY5v3nKz5U4GPUtrimgq38AR0 zbg78dzZ/h9cO0HBg== Received: from proxy-8.proxy.cloudus.ewr.xion.oxcs.net ([71.194.221.156]) by oxsus1nmtao02p.internal.vadesecure.com with ngmta id d11a3229-175ed74ff5692ecc; Sat, 13 May 2023 23:20:49 +0000 From: To: "'DAP AERO'" References: <000201d985ef$41136b90$c33a42b0$@flighttech.com> In-Reply-To: Subject: RE: Motorola Interface Date: Sat, 13 May 2023 18:20:50 -0500 Message-ID: <000a01d985f1$8eef4bc0$accde340$@flighttech.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01D985C7.A61943C0" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQL/+85uzJN1LJMTdtODvMHNrAnT7gF3DuvyrQAyHgA= Content-Language: en-us Authentication-Results: oxsus-vadesecure.net; auth=pass smtp.auth=4@78325 smtp.mailfrom=jfisher@flighttech.com; X-Spam-Status: No, score=-0.5 X-Spam-Score: -4 X-Spam-Bar: / X-Spam-Flag: NO This is a multipart message in MIME format. ------=_NextPart_000_000B_01D985C7.A61943C0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable The newer radios microphones have a cpu or other control circuity making = it impossible to interface to the intercom. There for all transmission on the radio are done with the radio = microphone. =20 Joe =20 From: DAP AERO =20 Sent: Saturday, May 13, 2023 6:16 PM To: jfisher@flighttech.com Subject: Re: Motorola Interface =20 Thanks Joe, So this taps into the speaker high/low pins on DB-15 on the radio for = the output. Is the headset microphone input directly connected or does = that need isolation/ impedance matching also? I haven=E2=80=99t found a = pin out for the Motorola, I presume there is a PTT input also.=20 =20 Best regards =20 Craig On May 13, 2023, at 4:04 PM, jfisher@flighttech.com = wrote: =EF=BB=BF Hi Craig, =20 Here is the wiring and parts information for interfacing the radio to = the intercom. =20 The transformer can be ordered from Mouser Electronics, = https://www.mouser.com/ProductDetail/Xicon/42TM016-RC?qs=3DPLr%2FYlEJFP1b= vBB4YtwOQg%3D%3D =20 Any questions, I=E2=80=99ll be happy to assist you. =20 Good luck, =20 =20 Joe Fisher DesignTech Systems, Inc FlightTech Intercoms www.flighttech.com =20 630-324-8199 =20 =20 ------=_NextPart_000_000B_01D985C7.A61943C0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

T= he newer radios microphones have a cpu or other control circuity making = it impossible to interface to the intercom.

T= here for all transmission on the radio are done with the radio = microphone.

<= o:p>

J= oe

<= o:p>

From: DAP AERO = <craig@dapaero.com>
Sent: Saturday, May 13, 2023 6:16 = PM
To: jfisher@flighttech.com
Subject: Re: Motorola = Interface

Thanks = Joe,

So this taps into the = speaker high/low pins on DB-15 on the radio for the output. Is the = headset microphone input directly connected or does that need isolation/ = impedance matching also? I haven=E2=80=99t found a pin out for the = Motorola, I presume there is a PTT input = also.

Best regards

Craig

On May 13, 2023, at 4:04 PM, jfisher@flighttech.com = wrote:

=EF=BB=BF
Hi = Craig,

Here is = the wiring and parts information for interfacing the radio to the = intercom.

The = transformer can be ordered from Mouser Electronics, https://www.mouser.com/ProductDetail/Xicon/42TM= 016-RC?qs=3DPLr%2FYlEJFP1bvBB4YtwOQg%3D%3D

Any = questions, I=E2=80=99ll be happy to assist you.

Good = luck,

Joe = Fisher
DesignTech Systems, = Inc
FlightTech = Intercoms
www.flighttech.com
630-324-8199

<motorela = interface.pdf>

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