PDR 3500 - Revision history

Bryan: /* Adding a Channel selector */

2025-12-25T19:16:07Z

Adding a Channel selector

Bryan: /* Changing Bands */

2024-08-31T16:06:07Z

Changing Bands

Bryan: /* Adding a Channel selector */

2024-03-13T05:34:41Z

Adding a Channel selector

Bryan: /* Adding a Channel selector */

2024-03-13T05:34:10Z

Adding a Channel selector

Bryan: /* Adding a Channel selector */

2024-03-13T05:33:24Z

Adding a Channel selector

Bryan: /* Adding a Channel selector */

2024-03-13T04:42:59Z

Adding a Channel selector

Bryan at 04:31, 13 March 2024

2024-03-13T04:31:13Z

Bryan at 04:30, 13 March 2024

2024-03-13T04:30:28Z

Bryan: /* Changing Bands */

2024-02-26T21:01:15Z

Changing Bands

Bryan: /* Power Supply Module */

2024-02-23T00:50:52Z

Power Supply Module

@@ Line 210: / Line 210: @@
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-Finally you want to test this, and it can be done using the RSS, or using a 9600 8n1 serial console.  If using the serial console, put the repeater in RSS mode with 'dorss', then issue 'get chn cur' to see the current channel.  confirm the channel selected works as expected.
+Finally you want to test this, and it can be done using the RSS, or using a 9600 8n1 serial console.  If using the serial console, put the repeater in RSS mode with 'dorss', then issue 'get chn cur' to see the current channel.  confirm the channel selected works as expected. [[Quantar Serial Commands]]
 = Documents =

← Older revision		Revision as of 16:06, 31 August 2024
Line 18:		Line 18:
	Of note when programing it, and especially for flash upgrades, the serial port on the top is the Back Port and uses the 193.0.0.4 IP address and BP config for SLIP. I've never been able to flash these at 38400, and have always needed to use 9600 bps.		Of note when programing it, and especially for flash upgrades, the serial port on the top is the Back Port and uses the 193.0.0.4 IP address and BP config for SLIP. I've never been able to flash these at 38400, and have always needed to use 9600 bps.

		+
		+	= Models =
		+
		+	PDR3500 Model Numbers are below. This is also in the manual below on page 14, with a detailed breakdown. The ranges are programed as if they are a Quantar, but as the PA is from the Spectra mobile radio, that is the limits on frequency coverage.
		+
		+	{\| class="wikitable"
		+	\|- style="font-weight:bold; vertical-align:bottom;"
		+	! Model No.
		+	! Type
		+	! Freq
		+	! Notes
		+	\|-
		+	\| style="vertical-align:bottom;" \| P2066B
		+	\| style="vertical-align:bottom;" \| VHF R1
		+	\| style="vertical-align:bottom;" \| 132-154
		+	\| VHF PA's are the same for R1/R2
		+	\|- style="vertical-align:bottom;"
		+	\| P2067B
		+	\| VHF R2
		+	\| 150-174
		+	\|
		+	\|- style="vertical-align:bottom;"
		+	\| P2068B
		+	\| UHF R1
		+	\| 403-433
		+	\|
		+	\|-
		+	\| style="vertical-align:bottom;" \| P2069B
		+	\| style="vertical-align:bottom;" \| UHF R2
		+	\| style="vertical-align:bottom;" \| 450-470
		+	\| PA limits low end to 450
		+	\|- style="vertical-align:bottom;"
		+	\| P2070B
		+	\| UHF R3
		+	\| 470-482
		+	\|
		+	\|-
		+	\| style="vertical-align:bottom;" \| P2071B
		+	\| style="vertical-align:bottom;" \| UHF R4
		+	\| style="vertical-align:bottom;" \| 494-512
		+	\| Limited by PA to 512
		+	\|-
		+	\| style="vertical-align:bottom;" \| P2072B
		+	\| style="vertical-align:bottom;" \| UHF R3.5
		+	\| style="vertical-align:bottom;" \| 482-494
		+	\| Note the UHF R4 PA is used here with R3 TX/RX
		+	\|- style="vertical-align:bottom;"
		+	\| P2073A
		+	\| 800
		+	\| 800 MHz
		+	\|
		+	\|}

	= Changing Bands =		= Changing Bands =

@@ Line 155: / Line 155: @@
 Finally you must program the wireline to use the 1-4 inputs as the channel selector.  You should make a codeplug with 16 channels to test as well.  Note that 0 on switch channel 16, 1-9 are the 1-9 channels and a-f is channels 10-15.  If making a label for the repeater it's suggested you use 0-F to label the channels, not what RSS calls them.  This will make it easier for someone in the field to select the proper channel.
-[[File:PDR3500 Channel Mod 00025.jpg|400px|thumb|left|Programing for binary input]]
+[[File:PDR3500 Channel Mod 00025.png|400px|thumb|left|Programing for binary input]]
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@@ Line 122: / Line 122: @@
 [[File:PDR3500 Channel Mod 00008.jpg|400px|thumb|left|IO ports 1-4 and 5v source]]
-[[File:PDR3500_Back_Plane_Wireline_tap.png|400px|thumb|left|IO ports 1-4 and 5v source]]
+[[File:PDR3500_Back_Plane_Wireline_tap.png|400px|thumb|left|Backplane diagram ]]
-[[File:Wireline_edge_card_connector.png|400px|thumb|left|IO ports 1-4 and 5v source]]
+[[File:Wireline_edge_card_connector.png|400px|thumb|left|Wireline card edge connectors]]
 <br clear=all>

@@ Line 112: / Line 112: @@
 The Quantar can support up to 16 channels, and most UHF duplexers can support a 75-100 kHz or better spread, so it makes sense that you can have 3-4 channels programmed at different options, ie. mixed, analog, P25, tones, power output, etc.  This way if you come into a location and find interference on your primary channel, a quick change can be made.
-Normally this is done via the wireline board IO, and while the PDR has a wireline board, it doesn't have the IO connector.  Connecting to the pins on the back plane is what's needed, and it is rather easy to do.
+The best option is a binary output 16 position switch.  These will provide 0000 - 1111 input to the IO pins directly, without needed a diode array.
 [[File:PDR3500 Channel Mod 00008.jpg|400px|thumb|left|IO ports 1-4 and 5v source]]
 <br clear=all>
-APEM makes a 0-F Hex switch PT65503, [https://www.digikey.com/en/products/detail/apem-inc/PT65503/1797077 Digikey 679-1940-ND] which has a nice readout and is small.  I put this on some perf board and mounted it with some epoxy to the chassis.   The position chosen avoids the possibility of damaging the switch with the case closed and provides a nice way to get the wires to the backplane.  You can note the extra hole next to the v.24 connector, it was my first attempt with a junkbox rotatory switch.  It worked great until I shut the lid and it broke the switch.
+Finally you must program the wireline to use the 1-4 inputs as the channel selector.  You should make a codeplug with 16 channels to test as well.  Note that 0 on switch channel 16, 1-9 are the 1-9 channels and a-f is channels 10-15.  If making a label for the repeater it's suggested you use 0-F to label the channels, not what RSS calls them.  This will make it easier for someone in the field to select the proper channel.
-[[File:PDR3500 Channel Mod 00023.jpg|400px|thumb|left|Location of the channel selector]]
+[[File:PDR3500 Channel Mod 00025.jpg|400px|thumb|left|Programing for binary input]]
 <br clear=all>
 = Documents =

@@ Line 107: / Line 107: @@
 |style="background-color:white"|Ground
 |}
 = Documents =

@@ Line 21: / Line 21: @@
 = Changing Bands =
 As the unit takes the standard modules, you can easily change bands by moving modules.  The issue is the PA is an adapted from the SPECTRA Mobile radios, and uses the same PCB but mounted on a custom heat spreader.
 = Documents =

@@ Line 125: / Line 125: @@
 </gallery>
+=== Duplexer ===
 PDR3500 Duplexer 00001.jpg
 PDR3500 Duplexer 00002.jpg
 PDR3500 Duplexer 00003.jpg
 === EPIC V SCM ===