Tait TOP Operation And Service Manual
Also see for TM8000 Series: Service manualService manualInstallation instructionsService manualAccessories manual
                                                                | |
Contents
| 
48 TM8000 Encryption Midian Encryption Programming and Service ManualJune 2006 © Tait Electronics Limited4.2 Circuit operationAudio buffering, gain reduction and amplification is provided by IC U7, aquad Op Amp. This reduces the higher Tx audio level in the TM8000 radiodown to a similar level to the TOP radio, and then amplifies it back up againafter the encryption module, to match the TM level. This allows the samemodule settings for TOP or TM8000.Note TM8000 Rx levels similar to the TOP and the Op Amps in theRx path are mainly buffering the Rx audio signal.The diagram that follows illustrates the operation of the XA2324-01circuitry:GPIO portGPIO1 sends PTT to the module and GPIO2 detects PTT from themodule. As the module’s PTT line is common, D2 and IC U6 (a 4053)isolate the two PTT lines and prevent the radio from locking up on Tx.Encryption ModuleTM8000Options BoardDirectProgramming Cable PTTAUD_TAP_OUTRSSIGreenLEDF1AUD_TAP_INTM8000 Main PCBProgrammingComputerMicrocontrollerEncrypt/DecryptTx/RxSwitchTx/RxSwitchKL3Programmer Rx/Tx dataRS 232Code control bus+5VGroundModeTx-SCRx-SCSC-TxSC-RxPTTRXDTXD20 way edge connectorSK1Radio MicrocontrollerTx / Rxswitch Tx / Rxswitch12Channel/CodedisplayChannel/Code(up/down buttons)SK1 External connectorResetSK102 Internal options connector |
Related manuals for Tait TM8000 Series
Tait TOP Programming And Service Manual
Tait TM8000 Service Manual
Tait TM9100 Service Manual
Tait TM8235 Service Manual
Tait TM8000 Series Service Manual
Tait T2020 Operator's Manual
Tait tm8200 Operator's Manual
Tait TM8100 mobiles Service Manual
Tait t2040 series ii Operator's Manual
Tait T2020 Series II Operator's Manual
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine