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SVR-1-KW3
Simplex Repeater Maker for Kenwood Two-Way Radios
Manual Revision: 2015-2-17
Covers Firnmware Revisions:
VS-1XXX: 01.62.00 & Higher
Covers Hardware Revisions:
VS-KW3: 7508F & Higher
This manual & product supports the following Kenwood Two-Way radios:
Portables: NX-200, NX-300
Mobiles: NX-700, NX-800
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Table of Contents
Related Manuals for Midian Electronics SVR-1-KW3
Summary of Contents for Midian Electronics SVR-1-KW3
- Page 1 SVR-1-KW3 Simplex Repeater Maker for Kenwood Two-Way Radios Manual Revision: 2015-2-17 Covers Firnmware Revisions: VS-1XXX: 01.62.00 & Higher Covers Hardware Revisions: VS-KW3: 7508F & Higher This manual & product supports the following Kenwood Two-Way radios: Portables: NX-200, NX-300 Mobiles: NX-700, NX-800...
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Page 2: Hardware Specifications
HARDWARE SPECIFICATIONS Operating Voltage 4.75-9.5 VDC Operating Current Power Save Mode (COR Operation) 2.5 mA typical Power Save Mode (VOX Operation) 10 mA typical Repeat Operation 17.5 mA typical Average w/COR Power Save (80-10-10 cycle) <5 mA Average w/COR Power Save (90-5-5 cycle) <4 mA Operating Temperature -30 - +60 C... -
Page 3: General Information
GENERAL INFORMATION Midian’s SVR-1-KW3 is a simplex repeater maker that can be installed into a Kenwood mobile or portable radio. The SVR-1-KW3 detects COR or VOX from an incoming transmission and records the incoming audio (up to 3 minutes). When the COR or VOX is no longer detected the SVR-1-KW3 keys the radio and retransmits the recorded audio. -
Page 4: Hardware Installation
Be certain to follow standard anti-static procedures when handling any of Midian’s products. Due to the design of the radio it is necessary to install a PTT wire from the SVR-1-KW3 to the Kenwood radio. PTT: In order to be able to automatically key the radio it is necessary to install a wire from the point shown in the picture below to a point in the radio as discussed in the installation instructions for the desired model radio below. -
Page 5: Product Programming
Midian’s MPS programming software. From the product selection screen in the MPS software, select the SVR-1-KW3 from the list and click OK. Note: The radio firmware must be at least 2.00.00.01 and the radio programming software must be KPG-111D version 2.00 or higher. - Page 6 Store on COR/Store on VOX: Select the appropriate method that the unit should use to start recording incoming audio. COR Hold-Up Time This sets the amount of times after a loss of COR or VOX that the unit will wait until it retransmits the recorded audio.
- Page 7 Power Up In Store/Retransmit Mode: If selected the unit will power up in repeat mode. This box must be selected if doing repeat enable on a per-channel basis. Key-Up Delay: This sets the amount of time the unit waits after keying the base station radio before it starts to retransmit the recorded audio.
- Page 8 PTT > Active Polarity: This sets whether the unit looks for an active low or active high to cancel a store/retransmit. PTT > Debounce: If checked the unit will require a continuous active state for 30 msec before accepting the PTT. Mode >...
- Page 9 COR > Active Polarity: This sets whether the unit looks for an active low or active high to start recording the received audio. The COR Polarity should be set to low for these radios. COR > Debounce: If checked the unit will require a continuous active state for 30 msec before accepting the COR.
- Page 10 AuX Inputs: Not used on this model.
- Page 11 Tones > Beep Volume: Adjust the slider for the desired beep volume. This level is expressed as a percentage of max voice audio level. Tones > Over-The-Air-Signal Modulation: Adjust the slider for the desired beep volume. This level is expressed as a percentage of max voice audio level.
- Page 12 AUDIO LEVELS ALIGNMENT This section describes how to determine and set the audio levels. Audio Levels Overview: To ensure the best audio quality, the SVR must be configured to match the audio levels used by the radio. The SVR uses programmable gain amplifiers to accomplish this. Determining the gain settings for these amplifiers is an involved process, so Midian simplified this process by developing an algorithm that requires the technician to make only four voltage measurements.
- Page 13 Programming the Audio Levels: After determining the audio levels at the audio hookup points, it will be necessary to program the SVR to match these levels. In the programming software, there is a slider control on the Audio Levels Screen for each of the of four audio hookup points.
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Page 14: Radio Programming
RADIO PROGRAMMING Kenwood NX-200 NX-300: Note: The radio firmware must be at least 2.00.00.01 and the radio programming software must be KPG-111D version 2.00 or higher. Under the “Edit” menu select “Extended Function” and set “Optional Board” as “Voice Scrambler”. OPT11 should be set as COR or TOR and Echo PTT should not be checked. - Page 15 Kenwood NX-700 NX-800: Note: The radio firmware must be at least 2.00.00.01 and the radio programming software must be KPG-111D version 2.00 or higher. Under the “Edit” menu select “Extended Function” and set “Optional Board” as “Voice Scrambler”. OPT11 should be set as COR or TOR and Echo PTT should not be checked.
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Page 16: Operation
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. MIDIAN CONTACT INFORMATION MIDIAN ELECTRONICS, INC. 2302 East 22 Street... - Page 17 This page intentionally left blank...
- Page 18 2.2u TP17 +VIN (SOURCE) 1.2M P1:14 +3.3VDD 560p P1:10 .0068u NOTES: U7:1 * = NOT INSTALLED 100K U7:2 DOCUMENT NAME MIDIAN ELECTRONICS, INC. SVR-1-KW3/VM-3-KW3 8.2K .01u .001u P1:13 2007-12-16 APPR DATE: DWN BY: SCHEMATIC PROJECT NUMBER SHEET 7508 2013-01-21 2013...
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