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Pyramid Communications Vehicular Repeater Interfacing and Connection Information (Application Notes) (This data was collected 07-Aug-12 and is subject to change.) Compiled by Robert W. Meister WA1MIK |
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The Pyramid SVR-200 and SVR-250 Vehicular Repeaters are small microprocessor-controlled half-duplex radio transceivers with tone encoders and decoders. They can be easily interfaced and connected to many mobile radios. Nine wires are used to provide power, ground, control, and audio signals.
| Signal | Notes |
|---|---|
| 12V In | DC Power Input |
| COR In | Receive COR Signal From the Mobile Radio |
| Enable In | Remote Enable or Disable via External Switch |
| Ground | Audio and Power Ground |
| Local Mic Audio In | Allows local transmit without a remote radio |
| On Air Detect In | Tells the SVR that the Mobile Radio is Transmitting |
| PTT Out | PTT Signal To the Mobile Radio |
| RX Audio In | Receive Audio From the Mobile Radio |
| TX Audio Out | Transmit Audio To the Mobile Radio |
Of these nine signals, the ones that are needed by most repeaters are:
TX Audio Out, PTT Out, RX Audio In, COR In, 12V In, and Ground.
While the vehicular repeater may not be of much use to people building amateur repeaters, the interfacing information on Pyramid's web site does contain a lot of very useful and well thought-out wiring and configuration data. As you can see in the list below, most of their application notes are aimed at Motorola equipment, but they do have a lot of other popular brands as well.
These vehicular repeaters are often installed in fire trucks. The first unit on the scene activates its unit and selects the appropriate channel on the attached mobile radio. The firefighters then use portable radios on a different band to communicate with the vehicular repeater. When the base station transmits, the mobile radio in the fire truck hears it and causes the vehicular repeater to transmit that signal to the portable radios. When a firefighter transmits on a portable radio, the vehicular repeater hears it and causes the attached mobile radio in the truck to transmit that signal to the base station. Think of it as a range extender.
These devices have another interesting feature. As each equipped piece of apparatus arrives on scene and activates their unit, the other units detect the newcomer and they go into standby mode, letting the newly arrived unit take over the task of repeating. When an active unit leaves the area or a unit is disabled, the previously active unit takes over. This is all done seamlessly and with no user intervention. For more information about how these units work, read the appropriate service manual, available on Pyramid's web site www.pyramid.com.
The majority of their application notes are aimed at Motorola equipment, but they do have information for a lot of other popular brands as well.
| AppNote | Radio Make and Model | App. Date |
|---|---|---|
| 290.pdf | Datron Guardian G25RMV100 | Jun 29, 10 |
| 280.pdf | EF Johnson 5300 ES Series Mobile | Feb 16, 09 |
| 221.pdf | EF Johnson 5300 Series | Oct 09, 01 |
| 259.pdf | EF Johnson 5300 X Series | Jun 12, 06 |
| 233.pdf | EF Johnson 7100 Series Mobile | Aug 27, 03 |
| 192.pdf | EF Johnson 7100 Series Mobile | Apr 13, 98 |
| 175.pdf | EF Johnson 8600 Series Trunking | Jun 20, 96 |
| 195.pdf | EF Johnson 9800 Series Mobile | Oct 19, 98 |
| 234.pdf | EF Johnson Summit Series / 800 MHZ | Oct 15, 03 |
| 202.pdf | EF Johnson Summit Series Mobile | Jun 23, 99 |
| 194.pdf | EF Johnson Viking GT Series Mobile | Oct 19, 98 |
| 178.pdf | Harris Delta S/Ranger w/S550 Control | Jul 1, 96 |
| 225.pdf | Harris EDACS 500M | Apr 25, 08 |
| 161.pdf | Harris EDACS Ranger w/S825 Control | Oct 3, 97 |
| 241.pdf | Harris M7100 | Apr 19, 04 |
| 281.pdf | Harris M7300 | Apr 6, 09 |
| 162.pdf | Harris MDX Conventional | May 23, 96 |
| 176.pdf | Harris MDX Trunking | May 23, 96 |
| 191.pdf | Harris MLS Series Mobile | Jan 20, 98 |
| 206.pdf | Harris Orion 800 MHz EDACS | Sep 9, 99 |
| 165.pdf | Harris Orion Dual Band | Dec 17, 97 |
| 232.pdf | Harris Orion EDACS Dash Mount | Aug 20, 03 |
| 163.pdf | Harris Orion Single Band | Dec 16, 97 |
| 217.pdf | Harris Orion VHF EDACS | Nov 28, 00 |
| 260.pdf | Hughes / MSV MSAT G2 /w MSAT-200 Interface Module | Apr 11, 06 |
| 283.pdf | HYT TM-800 | Aug 29, 09 |
| 257.pdf | ICOM F121 / F221 | Mar 13, 07 |
| 258.pdf | ICOM F1700 Series | Mar 22, 06 |
| 286.pdf | ICOM F5021, F6021 | Oct 28, 09 |
| 278.pdf | ICOM F5061 / F6061 | Jan 12, 08 |
| 288.pdf | ICOM F9511/ F9521 Series P25 | Mar 22, 10 |
| 151.pdf | Kenwood TK-930 | Jun 12, 96 |
| 148.pdf | Kenwood TK-x30 Series dual band | Nov 13, 96 |
| 147.pdf | Kenwood TK-x30 Series single/dual control | Nov 13, 96 |
| 276.pdf | Kenwood NEXEDGE NX-700/800 | Jun 13, 08 |
| 196.pdf | Kenwood TK x90 Series Mobile | Dec 6, 99 |
| 252.pdf | Kenwood TK-5710 Analog or P25 | Nov 20, 06 |
| 289.pdf | Kenwood TK-5720 / TK-5820 P25 | Apr 6, 10 |
| 215.pdf | Kenwood TK-6110 Low Band | Aug 28, 00 |
| 183.pdf | Kenwood TK-620/720 | Aug 30, 96 |
| 167.pdf | Kenwood TK-705/805 | Jan 2, 96 |
| 284.pdf | Kenwood TK-7102, TK-7108, TK-8102, TK-7108 | Oct 28, 09 |
| 207.pdf | Kenwood TK-715 Reginet MPT | Nov 1, 99 |
| 228.pdf | Kenwood TK-7150 / Tk-8150 | Dec 16, 04 |
| 250.pdf | Kenwood TK-7160 / TK-8160 | Jun 02, 05 |
| 246.pdf | Kenwood TK-7180 / 8180 w/ Local Mic Repeat | Oct 18, 05 |
| 287.pdf | Kenwood TK-7302 / TK-8302 | Nov 18, 09 |
| 214.pdf | Kenwood TK-760G/860G Mobile | Mar 12, 02 |
| 156.pdf | Kenwood TK-940/941 | Jun 12, 96 |
| 226.pdf | Kenwood TK-x80 /w Local Mic Repeat Support | Sep 15, 03 |
| 201.pdf | Kenwood TK-x80 Series Mobile | Jun 18, 99 |
| 205.pdf | Kenwood TK-x90 Dual Band | Jul 6, 99 |
| 181.pdf | Kenwood TK760/860 mobile | Aug 30, 96 |
| 193.pdf | Maxon 2450 Series Mobile | Aug 7, 98 |
| 198.pdf | Maxon SM 4150 | Nov 19, 98 |
| 188.pdf | Midland Syntech (older) | Jun 23, 97 |
| 164.pdf | Midland Syntech II | Jun 12, 96 |
| 236.pdf | Midland Syntech II Remote Mount | Apr 23, 04 |
| 203.pdf | Midland Titan Mobile | Jul 2, 99 |
| 169.pdf | Midland XTR Dash Mount | Feb 5, 96 |
| 146.pdf | Motorola Syntor | Aug 28, 95 |
| 294.pdf | Motorola APX High Power with Smart Cable | Jun 8, 11 |
| 293.pdf | Motorola APX Mid/Low Power with Smart Cable | Jun 8, 11 |
| 270.pdf | Motorola Astro Spectra High Power with Smart Cable | Mar 5, 08 |
| 265.pdf | Motorola Astro Spectra Mid/Low Power with Smart Cable | Feb 7, 07 |
| 248.pdf | Motorola Astro Spectra Plus High Power | Mar 10, 05 |
| 247.pdf | Motorola CDM Series /w Scholer Johnson Passport Option | Feb 18, 05 |
| 208.pdf | Motorola CDM-750/1250/1550 | Apr 27, 00 |
| 227.pdf | Motorola CDM1550 LS+ PassPort | Oct 21, 02 |
| 271.pdf | Motorola CM-300 | Jun 2, 07 |
| 182.pdf | Motorola GTX / LCS-2000 Trunking | Oct 17, 01 |
| 209.pdf | Motorola iDEN M Series (LM2000) | May 8, 00 |
| 158.pdf | Motorola Maratrac w/A7 Control | Apr 6, 99 |
| 171.pdf | Motorola Maxtrac Trunking | Feb 15, 96 |
| 153.pdf | Motorola Maxtrac w/o accessory connector | Jun 12, 96 |
| 189.pdf | Motorola MCS-2000 (Also See 267.pdf) | May 18, 04 |
| 267.pdf | Motorola MCS-2000 with Smart Cable | Feb 07, 07 |
| 179.pdf | Motorola Micor | Jul 12, 96 |
| 168.pdf | Motorola Mitrek | Jan 29, 96 |
| 216.pdf | Motorola Motorola Spectra High Band/High Power direct PCB Interface | Apr 12, 01 |
| 272.pdf | Motorola MOTOTRBO XPR Series | Aug 7, 07 |
| 155.pdf | Motorola Moxy | Jun 12, 96 |
| 274.pdf | Motorola PM-1200 Low Band | Apr 24, 08 |
| 244.pdf | Motorola PM400 | Dec 14, 04 |
| 160.pdf | Motorola Radius Series | Feb 22, 05 |
| 224.pdf | Motorola Spectra - Astro High Pwr (Also See 270.pdf) | May 21, 02 |
| 223.pdf | Motorola Spectra - Astro Low Pwr (Also See 265.pdf) | Jan 18, 02 |
| 149.pdf | Motorola Spectra High Power | Mar 25, 05 |
| 204.pdf | Motorola Spectra Low/Mid Power | Feb 22, 05 |
| 159.pdf | Motorola Spectra Low/Mid Power w/ HLN6094B Board | Feb 22, 05 |
| 172.pdf | Motorola Syntor X 9000 | Apr 9, 96 |
| 242.pdf | Motorola XTL-1500/2500/5000 Mid/Low Power (Also See 268.pdf) |
Mar 06, 06 |
| 251.pdf | Motorola XTL-1500/2500/5000 PM-1500 High Power w/ Astro Control (Old
Style) (Also See 266.pdf) | Jul 29, 05 |
| 266.pdf | Motorola XTL-1500/2500/5000 PM-1500 High Power with Smart Cable | Feb 7, 07 |
| 256.pdf | Motorola XTL-1500/2500/5000 PM-1500 High Pwr w/ Millennium Ctrl Head
(New Style) (Also See 266.pdf) | Jan 18, 06 |
| 268.pdf | Motorola XTL-1500/2500/5000 PM-1500 Mid/Low Pwr with Smart Cable | Feb 7, 07 |
| 152.pdf | Realm / BKEMV w/9 pin accessory | Jun 12, 96 |
| 157.pdf | Realm / BKEMV/EMH w/15 pin accessory | Oct 1, 96 |
| 255.pdf | Realm / BK DMH Digital | Dec 6, 05 |
| 187.pdf | Regency RV60B | Jun 1, 97 |
| 213.pdf | SEA ESP-604 | Jul 18, 00 |
| 177.pdf | SEA ESP504/520 | Jun 6, 96 |
| 180.pdf | Securicor 220MHz MPT Trunking | Aug 28, 96 |
| 210.pdf | Securicor 4115 Mobile | Jun 9, 00 |
| 235.pdf | Securicor Titan Low band 70-0671C | Apr 23, 04 |
| 219.pdf | Standard GX4800/5800/5850 | Dec 08, 00 |
| 200.pdf | Tait T2020 Conventional Mobile | Mar 26, 99 |
| 239.pdf | Tait T8115 | Apr 29, 04 |
| 263.pdf | Tait TM-8200 | Dec 13, 06 |
| 279.pdf | Tait TM-9100 P25 | Feb 4, 09 |
| 173.pdf | Uniden IMH-4100 D | Apr 30, 96 |
| 186.pdf | Uniden SMS-825 TS | Mar 15, 97 |
| 150.pdf | Vertex FTL-x011 4/12/24 channel | Oct 24, 97 |
| 190.pdf | Vertex 4/12 Channel New Logic Board | Oct 24, 97 |
| 154.pdf | Vertex 99 channel | Jun 29, 97 |
| 261.pdf | Vertex VX-2200 | Oct 24, 06 |
| 229.pdf | Vertex VX-4000 Single Band / Single Head Configuration | Feb 07, 03 |
| 240.pdf | Vertex VX-4200 | Aug 27, 04 |
| 282.pdf | Vertex VX-5500 | May 5, 09 |
| 231.pdf | Vertex VX-6000 Single Band / Single Head VHF | Jul 15, 03 |
| 285.pdf | Vertex VX-7200 | Oct 28, 09 |
| 199.pdf | Vertex VX3000 Mobile | Jun 11, 99 |
| 275.pdf | Vertex VX3200 VHF/UHF | Jun 9, 08 |
Contact Information:
Bob can be contacted at: his-callsign [ at ] comcast [ dot ] net.
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This page originally posted on Tuesday 07-Aug-2012.
This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.