Quantar - Revision history

Bryan: /* Manuals */

2025-12-25T19:38:52Z

Manuals

Bryan: /* Manuals */

2025-12-25T19:26:31Z

Manuals

Bryan: /* Manuals */

2025-12-25T19:26:08Z

Manuals

Bryan: /* Power Supplies */

2025-06-05T04:23:24Z

Power Supplies

Bryan: /* Station Control info */

2024-05-16T01:40:55Z

Station Control info

Bryan: /* Receiver */

2024-05-04T04:11:07Z

Receiver

Bryan: /* Power Amp */

2024-05-03T21:27:38Z

Power Amp

Bryan: /* Power Amp */

2024-05-03T21:05:13Z

Power Amp

Bryan: /* Receiver */

2024-05-02T13:32:14Z

Receiver

Bryan: /* Hardware info */

2024-02-07T08:37:08Z

Hardware info

← Older revision		Revision as of 19:38, 25 December 2025
Line 147:		Line 147:

	* [[Winrss help\|RSS Software Help file.]] - this is the help file from WinRSS and is quite useful for station programing tips.		* [[Winrss help\|RSS Software Help file.]] - this is the help file from WinRSS and is quite useful for station programing tips.
		+
		+	* [[Quantar Serial Commands]] - Info on the serial commands the quantar station supports from the RSS port.

	== Hardware info ==		== Hardware info ==

@@ Line 123: / Line 123: @@
 === Manuals ===
-* [[Media:Motorola Quantar Instruction Manual.pdf|thumb|Motorola Quantar Instruction Manual 68P81095E05-B with updates]]
+* [[Media:Motorola Quantar Instruction Manual.pdf|Motorola Quantar Instruction Manual 68P81095E05-B with updates]] - Most comprehensive manual
 * [[media:Quantar Satellite Receiver Instruction Manual 68P81087E25-O.pdf|Quantar Satellite Receiver Instruction Manual 68P81087E25-O.pdf]] - This is the manual for Satellite Receiver (not AstroTac Receiver), which is basically a Quantar minus the PA/Exciter.  The advantage to this is it can be used where wildcard functions are need.

← Older revision		Revision as of 19:26, 25 December 2025
Line 123:		Line 123:

	=== Manuals ===		=== Manuals ===
		+	* [[Media:Motorola Quantar Instruction Manual.pdf\|thumb\|Motorola Quantar Instruction Manual 68P81095E05-B with updates]]
		+
	* [[media:Quantar Satellite Receiver Instruction Manual 68P81087E25-O.pdf\|Quantar Satellite Receiver Instruction Manual 68P81087E25-O.pdf]] - This is the manual for Satellite Receiver (not AstroTac Receiver), which is basically a Quantar minus the PA/Exciter. The advantage to this is it can be used where wildcard functions are need.		* [[media:Quantar Satellite Receiver Instruction Manual 68P81087E25-O.pdf\|Quantar Satellite Receiver Instruction Manual 68P81087E25-O.pdf]] - This is the manual for Satellite Receiver (not AstroTac Receiver), which is basically a Quantar minus the PA/Exciter. The advantage to this is it can be used where wildcard functions are need.

@@ Line 154: / Line 154: @@
 The -48v supplies are easy to see as they have a side to side DC breaker style switch.  The Motorola/Onan column refers to the manufacturer of the PS.  Many people rag on the Onan power supplies, but I've not had one fail in service yet.  The Onan do have a heat activated fan, whereas the Motorola run continuously.  This can be good for base use or in the lab, as the base station will not make noise unless it's keyed down for some time.
 {| class="wikitable" style="background-color:#D6DCE4; width: 60%;"
@@ Line 182: / Line 184: @@
 |TPN1186||No idea|| ? ||
 |}
 === [[Quantro/Quantar-Backplane|BackPlane]] ===

@@ Line 200: / Line 200: @@
 * EPIC IV - '''This is only for the Smart Zone trunking.  IT will not work for conventional'''
 * [[EPIC V| EPIC V - MCLN8447]]
 {| class="wikitable" style="background-color:#D6DCE4; width: 60%;"

@@ Line 309: / Line 309: @@
 Like the rest of the unit the receivers are frequency dependent and consist of their own modules.  The basic receiver has a preselector which is 4 MHz wide on VHF and 6 MHz wide on UHF.
-The receiver is an excellent high side injection design (exception for 800/900 which is low side).  The first IF is +21.45 MHz on VHF and +73.35 MHZ on UHF/800/900.  The second IF is 455 KHz.  In many cases barefoot (minus preselector) the receiver sensitivity is under .112μV (-126 dBm) for 12 dB SINAD.  Couple this with the great built in selectivity and it's truly a bullet proof design idea for high RF sites.
+The receiver is an excellent high side injection design (exception for 800/900 which is low side).  The first IF is +21.45 MHz on VHF and +73.35 MHZ on UHF/800/900.  The second IF is 455 KHz.  In many cases barefoot (minus preselector) the receiver sensitivity is under -120dBm for 12 dB SINAD.  Couple this with the great built in selectivity and it's truly a bullet proof design idea for high RF sites.
 The receiver is pretty dumb, there is not a μP on the board, making it easier to troubleshoot.  The devices receive their programming from the main CPU on the SCM via SPI bus.  The two main chips are the U2500 receiver IC and U2401 PLL IC.  U2401, the PLL, is a custom chip responsible for locking the VCOs to the proper frequency, and selecting the high or low VCO.  U2500, the receiver IC, contains the 2nd IF/VCO and final processing of the intended signal.  Unlike other designs, the receiver IC presents the recovered audio/data as two digital signals to the SCM where A/D conversion happens (if needed).

@@ Line 539: / Line 539: @@
 * IPA Current detect
 * DPA Side A & B current sense
-* Temperature of the PA
+* Temperature of the PA 3.981v is 79f 2.0 is about 170f This looks like an 8 bit value with 0xFF == 5.000 V or .019608v per bit.
-** PA Fans turn on at 2v and off at 4v.
+** PA Fans turn on at 2v and off at 2.90v.
 * Fan on/off and alarm
 * PA_ID bits A & B - resistor divider that programs to reference voltages in .5v increments to ID the PA hardware to the exciter.

@@ Line 326: / Line 326: @@
 | TRD6361 || CLD1250 || TLN3250 || VHF R1  || [[VHF Preselector|TFD6511]] || [[VHF Receiver|VHF Receiver 132-154 MHz]]
 |-
-| TRD6362 || CLD1260 || TLN3251 || VHF R2 || [[VHF Preselector|TFR6512]] || [[VHF Receiver|VHF Receiver 150-174 MHz]]
+| TRD6362 || CLD1260 || TLN3251 || VHF R2 || [[VHF Preselector|TFD6512]] || [[VHF Receiver|VHF Receiver 150-174 MHz]]
 |-
 | CRX4022 || CRX1027 || DLN1215 || UHF R0 || [[UHF Preselector|CRX4001]] || [[UHF R0 Receiver|UHF Receiver 380-433 MHz]]

@@ Line 513: / Line 513: @@
 | 63||INVALID||111111||Exciter is in reset all LED's are on and the PA fans turn on
 |}
 == Power Amp ==