Summary of Contents for Midian TVS-2 Series
- Page 1 TVS-2 High Level Hopping Code Scrambler VPU-15 Voice Inversion Scrambler with Midian’s Kryptic Signaling Manual Revision: 2018-03-30 Rev G Covers Software Revisions: TVS-2: 4.97 & Higher VPU-15: 4.97 & Higher...
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Page 2: Specifications
GENERAL INFORMATION TVS-2 Series: Midian’s TVS-2 series is a high-level rolling code scrambler. The TVS-2 uses hopping type rolling code encryption for higher security rather than sweeping code type and offers 4 user-programmable hop rates and is down gradable to voice inversion. The scrambler is capable of features such as ANI, ENI, OTAR, Deadbeat Disable, Spy, and more when using Midian’s Kryptic Signaling format with the CAD-300/DDU-300. -
Page 3: Product Programming
PRODUCT PROGRAMMING Midian’s TVS-2 and VPU-15 are programmed using Midian’s KL-4F and MPS software. Please reference the KL- 4 manual for setup instructions of the KL-4 hardware. KL4-F USB PORT ASSIGNMENT and SOFTWARE INSTALLATION Go to our website midians.com and under downloads> software download the latest MPS software version. If using the supplied CD-ROM insert it into the PC’s CD-ROM drive. -
Page 4: Hardware Installation
HARDWARE INSTALLATION Be certain to follow standard anti-static procedures when handling any of Midian’s products. For installation instructions into a particular radio, please consult Midian’s application notes for the TVS-2 and VPU-15 if available. P1 – Connector Side P1-1 – Green – PTT Input – Disconnect the line coming from the radio’s PTT switch. Connect the PTT Input lead to the PTT switch. - Page 5 P2 – Non-Connector Side P2-1 – Keypad Column 3 Input P2-2 – Keypad Column 2 Input. Can also be used with a binary switch to select security codes. P2-3 – Keypad Column 1 Input P2-4 – Keypad Row 4 Input P2-5 –...
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Page 6: Hardware Alignment
5. Adjust the RX output pot to match the reference level documented from step 1 output level. If the output level cannot be obtained call Midian for further details. 6. For the TX levels, set the TX input pot so that the level at IC-9 Pin 1 is just below clipping by speaking loudly into the microphone with the scrambler in scramble mode. -
Page 7: Operation
Midian’s Kryptic Signaling: Midian’s TVS-2 and VPU-15 offer the following signaling functions: ANI: When the PTT button is pressed the scrambler will generate an ANI to be decoded by Midian’s CAD-300 or DDU-300. Emergency ANI (ENI): When the Emergency button on the radio is pressed and held for 1 second the scrambler will key the radio and transmit the ANI to be decoded by Midian’s CAD-300 or DDU-300. -
Page 8: System Setup
Trunking Systems: Midian’s TVS-2 has a trunking delay input. Connect this input to a point in the radio that will give the scrambler a strobe upon acquisition of a channel. This can either be high or low. Program the “Trunking Delay Polarity” to the active state of the strobe. - Page 9 HF SSB: Midian does not recommend the TVS-2 to be used on HF SSB systems for several reasons. Due to the nature of SSB modulation the signal fades in and out. Depending on the strength of the signal at the time the sync is received by the TVS-2 will determine whether or not the sync will be decoded.
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Page 10: Technical Notes
However, some features may not be available in the radio when an option board is used. If a feature is not available, please contact Midian to see if the feature can be added. - Page 11 (GRAY / W) 74HC4053 (RED) 100K 1.2M (SOURCE) 560p P1:4 NOTE: * = NOT INSTALLED (BLK) .0068 IC6:2 DOCUMENT NAME IC6:3 MIDIAN ELECTRONICS, INC. TVS-2 WIRED LMV324 ihs7291g2_tvs2_wired LMV324 8.2K APPR .001 DATE: 1997-07-01 DWN BY: SCHEMATIC SHEET PROJECT NUMBER...
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