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	<id>https://wiki.pttlink.org/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=KE8CPD</id>
	<title>&quot;PTTLink Wiki&quot; - User contributions [en]</title>
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	<updated>2026-05-13T10:24:16Z</updated>
	<subtitle>User contributions</subtitle>
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	<entry>
		<id>https://wiki.pttlink.org/index.php?title=GM300_Interfacing&amp;diff=762</id>
		<title>GM300 Interfacing</title>
		<link rel="alternate" type="text/html" href="https://wiki.pttlink.org/index.php?title=GM300_Interfacing&amp;diff=762"/>
		<updated>2017-11-07T01:24:10Z</updated>

		<summary type="html">&lt;p&gt;KE8CPD: update to RA-40&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Interfacing the GM300&lt;br /&gt;
=RA-40=&lt;br /&gt;
==Quick Info==&lt;br /&gt;
==16 Pin  Connections==&lt;br /&gt;
==Internal Jumper connections==&lt;br /&gt;
&lt;br /&gt;
=RTCM=&lt;br /&gt;
&lt;br /&gt;
=URI-X=&lt;br /&gt;
&lt;br /&gt;
=DIY USB Fobs=&lt;/div&gt;</summary>
		<author><name>KE8CPD</name></author>
	</entry>
	<entry>
		<id>https://wiki.pttlink.org/index.php?title=GM300_Interfacing&amp;diff=761</id>
		<title>GM300 Interfacing</title>
		<link rel="alternate" type="text/html" href="https://wiki.pttlink.org/index.php?title=GM300_Interfacing&amp;diff=761"/>
		<updated>2017-11-07T01:20:43Z</updated>

		<summary type="html">&lt;p&gt;KE8CPD: Page created &amp;quot;Interfcaing Gm300s&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Interfacing the GM300&lt;br /&gt;
=RA-40=&lt;br /&gt;
&lt;br /&gt;
=RTCM=&lt;br /&gt;
&lt;br /&gt;
=URI-X=&lt;br /&gt;
&lt;br /&gt;
=DIY USB Fobs=&lt;/div&gt;</summary>
		<author><name>KE8CPD</name></author>
	</entry>
	<entry>
		<id>https://wiki.pttlink.org/index.php?title=Radio_Connections&amp;diff=760</id>
		<title>Radio Connections</title>
		<link rel="alternate" type="text/html" href="https://wiki.pttlink.org/index.php?title=Radio_Connections&amp;diff=760"/>
		<updated>2017-11-07T01:16:10Z</updated>

		<summary type="html">&lt;p&gt;KE8CPD: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Instructions for connecting radios, repeaters and AllStarLink interfaces including the RTCM, GPS, URI/URI X and like devices.  &lt;br /&gt;
=GPS=&lt;br /&gt;
* [[Media:RTCM 2 Trimble.pdf|Trimble RTCM Interface Cable]]&lt;br /&gt;
* [[Media:RTCM 321 Cable.graffle.pdf|Trimble to Two RTCMs and Lady Heather Cable]]&lt;br /&gt;
* [[Media:RTCM to BG7TBL Cable.pdf|BG7TBL GPS / RTCM Cable]]&lt;br /&gt;
&lt;br /&gt;
=Motorola=&lt;br /&gt;
&lt;br /&gt;
==CDM==&lt;br /&gt;
CDMs make great nodes. This eBay reseller has very nice cables. Use to connect to URI or RTCM. &lt;br /&gt;
&lt;br /&gt;
[[Media:CDM Cable.pdf|CDM Cable from Kurt Meltzer]] ex-WB9KNX, now KC4NX - Cable 83 has only one output to use for either COS or CTCSS. Use another cable if you need both COS and CTCSS.&lt;br /&gt;
&lt;br /&gt;
==MTR-2000==&lt;br /&gt;
&lt;br /&gt;
==Quantar==&lt;br /&gt;
&lt;br /&gt;
The Quantar can be tricky to interface as it's extremely programmable and you will need a wireline card for I/O connections.  By default the I/O will not work unless the &amp;quot;wildcard&amp;quot; table is programed.  This wildcard table is Boolean logic of interrupt states in the radio, is extremely flexible and frustrating to debug.  It's a base station in it's own class.&lt;br /&gt;
&lt;br /&gt;
[[File:Front of quantar and controller.jpg|thumb|400px|right|Front of Quantar and controller]]&lt;br /&gt;
&lt;br /&gt;
* [[Media:QUANTAR-RTCM INTERFACE CABLE.pdf|Quantar/RTCM Interface Cable]]&lt;br /&gt;
&lt;br /&gt;
Note you will want to use [[RTCM_Client#DSP.2FBEW_Firmware_Version|BEW mode]] on the RTCM if using the RTCM do squelch.&lt;br /&gt;
&lt;br /&gt;
* [[Media:RTCM 2 Quantar.pdf|Another Quantar/RTCM Interface Cable]]&lt;br /&gt;
* [[Media:RTCM to Astro-TAC Cable.pdf|Astro-TAC/RTCM Interface Cable]]&lt;br /&gt;
* [http://wiki.w9cr.net/index.php/Allstar_and_P25_on_Quantar Interfacing to a Quantar with P25NX]  - Bryan Fields W9CR has page on interfacing the Qunatar using simple USB into Allstar and P25NX linking at the same time.  This is driven by programing on the Quantar Wildcard tables.&lt;br /&gt;
*[[Media:Quantar URI Interface.jpg|Quantar/URI Cable]]&lt;br /&gt;
*[[Media:QuantarMRTI2URI.jpg|Quantar MRTI/URI Cable]]&lt;br /&gt;
&lt;br /&gt;
==Syntor X==&lt;br /&gt;
The Motorola Syntor X with an Xcat installed makes a great frequency agile remote base. For more information see this [http://wd6awp.net/xcat/ Syntor Xcat] page. &lt;br /&gt;
&lt;br /&gt;
==VRM-850==&lt;br /&gt;
&lt;br /&gt;
==GM300==&lt;br /&gt;
These older radios are fairly common and easily to come by due to the narrow banding. Probably the hardest part is finding a computer and the RSS to program them. The Gm300 family has many different configurations, from low band VHF, to 800 Mhz. But the easiest variant of the GM300 is ones with the 16 pin connector.&lt;br /&gt;
[http://www.repeater-builder.com/motorola/maxtrac/maxtrac-index.html All about GM300 Radios] &lt;br /&gt;
&lt;br /&gt;
Connections are fairly simple but can be hard to determine which is the correct one to use. This [http://www.repeater-builder.com/motorola/maxtrac/maxtrac-option-plug.html link] is a good place to start. &lt;br /&gt;
&lt;br /&gt;
=Kenwood=&lt;br /&gt;
==TKR720/820==&lt;br /&gt;
Connections to: PTT, COS, RX audio out and MIC audio in&lt;br /&gt;
&lt;br /&gt;
TX/RX board, MIC audio input, pins 4 &amp;amp; 5: floating ground, must not tie to any other ground! Some installations may require a 10dB, resistor L-network consisting of a 4.7k and 470 ohm resistors. The 470 ohm resistor connection across pins four and five, the 4.7k resistor is soldered to pin 5 to which your TX audio from the URI will connect to.&lt;br /&gt;
&lt;br /&gt;
The MIC audio gain, deviation, and balance adjustments are *very* sensitive! &lt;br /&gt;
&lt;br /&gt;
- RA-35 without TX adj. trimmer pots: Using a service monitor with deviation metering, start low and work your way up to 3KHz deviation with 1KHz tone, generated by simpleusb-tune-menu. If enabled, *904 turns this tone on and off by command, ie, no tone time-out as in simpleusb-tune-menu.&lt;br /&gt;
&lt;br /&gt;
== TKR750/850 ==&lt;br /&gt;
[http://www.masterscommunications.com/products/radio-adapter/txt/tkr.txt Using the Masters Communications RA-35 or RA-40 radio adapters with the TKR750/850]&lt;br /&gt;
&lt;br /&gt;
=Repeater Controller=&lt;br /&gt;
&lt;br /&gt;
[[Media:RTCMwithController.pdf|An example of using RTCMs to replace 420 links]]&lt;br /&gt;
&lt;br /&gt;
=Spectra Engineering=&lt;br /&gt;
* [http://wiki.w9cr.net/index.php/MX800#W9CR_alignment_procedure_and_setup_with_Allstar MX800 Base station] - Bryan Fields, W9CR has a complete setup guide for the MX800 Base station which includes fallback to the built in controller and an audio delay module.&lt;br /&gt;
&lt;br /&gt;
=Tait=&lt;br /&gt;
&lt;br /&gt;
=URI / URI X=&lt;br /&gt;
The URI is manufactured and sold by [http://dmkeng.com/URI_Order_Page.htm DMK Engineering]. &lt;br /&gt;
*[[Media:URI Schematic.pdf|URI Schematic]]&lt;br /&gt;
*[[Media:URIx Schematic.pdf|URI X Schematic]]&lt;br /&gt;
&lt;br /&gt;
=RA-40 / RA-35=&lt;br /&gt;
The RA-40 is the latest version and is sold by W3KKC. The RA-40 includes audio output level control potentiometers and much more.&lt;br /&gt;
*[http://www.masterscommunications.com/products/radio-adapter/ra40.html RA-40]&lt;br /&gt;
*[http://www.masterscommunications.com/products/radio-adapter/ra35.html RA-35]&lt;br /&gt;
&lt;br /&gt;
=Vertex=&lt;br /&gt;
* [[Media:RTCM 2 VRX-5000.pdf|VRX-5000 / RTCM Interface Cable]]&lt;br /&gt;
&lt;br /&gt;
[[Category:How to]]&lt;/div&gt;</summary>
		<author><name>KE8CPD</name></author>
	</entry>
	<entry>
		<id>https://wiki.pttlink.org/index.php?title=Radio_Connections&amp;diff=745</id>
		<title>Radio Connections</title>
		<link rel="alternate" type="text/html" href="https://wiki.pttlink.org/index.php?title=Radio_Connections&amp;diff=745"/>
		<updated>2017-10-30T00:21:29Z</updated>

		<summary type="html">&lt;p&gt;KE8CPD: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Instructions for connecting radios, repeaters and AllStarLink interfaces including the RTCM, GPS, URI/URI X and like devices.  &lt;br /&gt;
=GPS=&lt;br /&gt;
* [[Media:RTCM 2 Trimble.pdf|Trimble RTCM Interface Cable]]&lt;br /&gt;
* [[Media:RTCM 321 Cable.graffle.pdf|Trimble to Two RTCMs and Lady Heather Cable]]&lt;br /&gt;
* [[Media:RTCM to BG7TBL Cable.pdf|BG7TBL GPS / RTCM Cable]]&lt;br /&gt;
&lt;br /&gt;
=Motorola=&lt;br /&gt;
&lt;br /&gt;
==CDM==&lt;br /&gt;
CDMs make great nodes. This eBay reseller has very nice cables. Use to connect to URI or RTCM. &lt;br /&gt;
&lt;br /&gt;
[[Media:CDM Cable.pdf|CDM Cable from Kurt Meltzer]] ex-WB9KNX, now KC4NX - Cable 83 has only one output to use for either COS or CTCSS. Use another cable if you need both COS and CTCSS.&lt;br /&gt;
&lt;br /&gt;
==MTR-2000==&lt;br /&gt;
&lt;br /&gt;
==Quantar==&lt;br /&gt;
&lt;br /&gt;
The Quantar can be tricky to interface as it's extremely programmable and you will need a wireline card for I/O connections.  By default the I/O will not work unless the &amp;quot;wildcard&amp;quot; table is programed.  This wildcard table is Boolean logic of interrupt states in the radio, is extremely flexible and frustrating to debug.  It's a base station in it's own class.&lt;br /&gt;
&lt;br /&gt;
[[File:Front of quantar and controller.jpg|thumb|400px|right|Front of Quantar and controller]]&lt;br /&gt;
&lt;br /&gt;
* [[Media:QUANTAR-RTCM INTERFACE CABLE.pdf|Quantar/RTCM Interface Cable]]&lt;br /&gt;
&lt;br /&gt;
Note you will want to use [[RTCM_Client#DSP.2FBEW_Firmware_Version|BEW mode]] on the RTCM if using the RTCM do squelch.&lt;br /&gt;
&lt;br /&gt;
* [[Media:RTCM 2 Quantar.pdf|Another Quantar/RTCM Interface Cable]]&lt;br /&gt;
* [[Media:RTCM to Astro-TAC Cable.pdf|Astro-TAC/RTCM Interface Cable]]&lt;br /&gt;
* [http://wiki.w9cr.net/index.php/Allstar_and_P25_on_Quantar Interfacing to a Quantar with P25NX]  - Bryan Fields W9CR has page on interfacing the Qunatar using simple USB into Allstar and P25NX linking at the same time.  This is driven by programing on the Quantar Wildcard tables.&lt;br /&gt;
*[[Media:Quantar URI Interface.jpg|Quantar/URI Cable]]&lt;br /&gt;
*[[Media:QuantarMRTI2URI.jpg|Quantar MRTI/URI Cable]]&lt;br /&gt;
&lt;br /&gt;
==Syntor X==&lt;br /&gt;
The Motorola Syntor X with an Xcat installed makes a great frequency agile remote base. For more information see this [http://wd6awp.net/xcat/ Syntor Xcat] page. &lt;br /&gt;
&lt;br /&gt;
==VRM-850==&lt;br /&gt;
&lt;br /&gt;
=Kenwood=&lt;br /&gt;
==TKR720/820==&lt;br /&gt;
Connections to: PTT, COS, RX audio out and MIC audio in&lt;br /&gt;
&lt;br /&gt;
TX/RX board, MIC audio input, pins 4 &amp;amp; 5: floating ground, must not tie to any other ground! Some installations may require a 10dB, resistor L-network consisting of a 4.7k and 470 ohm resistors. The 470 ohm resistor connection across pins four and five, the 4.7k resistor is soldered to pin 5 to which your TX audio from the URI will connect to.&lt;br /&gt;
&lt;br /&gt;
The MIC audio gain, deviation, and balance adjustments are *very* sensitive! &lt;br /&gt;
&lt;br /&gt;
- RA-35 without TX adj. trimmer pots: Using a service monitor with deviation metering, start low and work your way up to 3KHz deviation with 1KHz tone, generated by simpleusb-tune-menu. If enabled, *904 turns this tone on and off by command, ie, no tone time-out as in simpleusb-tune-menu.&lt;br /&gt;
&lt;br /&gt;
=Repeater Controller=&lt;br /&gt;
&lt;br /&gt;
[[Media:RTCMwithController.pdf|An example of using RTCMs to replace 420 links]]&lt;br /&gt;
&lt;br /&gt;
=Spectra Engineering=&lt;br /&gt;
* [http://wiki.w9cr.net/index.php/MX800#W9CR_alignment_procedure_and_setup_with_Allstar MX800 Base station] - Bryan Fields, W9CR has a complete setup guide for the MX800 Base station which includes fallback to the built in controller and an audio delay module.&lt;br /&gt;
&lt;br /&gt;
=Tait=&lt;br /&gt;
&lt;br /&gt;
=URI / URI X=&lt;br /&gt;
The URI is manufactured and sold by [http://dmkeng.com/URI_Order_Page.htm DMK Engineering]. &lt;br /&gt;
*[[Media:URI Schematic.pdf|URI Schematic]]&lt;br /&gt;
*[[Media:URIx Schematic.pdf|URI X Schematic]]&lt;br /&gt;
&lt;br /&gt;
=RA-40 / RA-35=&lt;br /&gt;
The RA-40 is the latest version and is sold by W3KKC. The RA-40 includes audio output filtering and much more.&lt;br /&gt;
*[http://www.masterscommunications.com/products/radio-adapter/ra40.html RA-40]&lt;br /&gt;
*[http://www.masterscommunications.com/products/radio-adapter/ra35.html RA-35]&lt;br /&gt;
&lt;br /&gt;
=Vertex=&lt;br /&gt;
* [[Media:RTCM 2 VRX-5000.pdf|VRX-5000 / RTCM Interface Cable]]&lt;br /&gt;
&lt;br /&gt;
[[Category:How to]]&lt;/div&gt;</summary>
		<author><name>KE8CPD</name></author>
	</entry>
	<entry>
		<id>https://wiki.pttlink.org/index.php?title=Topic:U0w8z17vpqo617zk&amp;topic_postId=u0w8z18nryhu4kvk&amp;topic_revId=u0w8z18nryhu4kvk&amp;action=single-view</id>
		<title>Topic:U0w8z17vpqo617zk</title>
		<link rel="alternate" type="text/html" href="https://wiki.pttlink.org/index.php?title=Topic:U0w8z17vpqo617zk&amp;topic_postId=u0w8z18nryhu4kvk&amp;topic_revId=u0w8z18nryhu4kvk&amp;action=single-view"/>
		<updated>2017-10-29T02:01:43Z</updated>

		<summary type="html">&lt;span class=&quot;plainlinks&quot;&gt;&lt;a href=&quot;/wiki/User:KE8CPD&quot; class=&quot;mw-userlink&quot; title=&quot;User:KE8CPD&quot;&gt;&lt;bdi&gt;KE8CPD&lt;/bdi&gt;&lt;/a&gt; &lt;span class=&quot;mw-usertoollinks&quot;&gt;(&lt;a href=&quot;/wiki/User_talk:KE8CPD&quot; class=&quot;mw-usertoollinks-talk&quot; title=&quot;User talk:KE8CPD&quot;&gt;talk&lt;/a&gt; | &lt;a href=&quot;/wiki/Special:Contributions/KE8CPD&quot; class=&quot;mw-usertoollinks-contribs&quot; title=&quot;Special:Contributions/KE8CPD&quot;&gt;contribs&lt;/a&gt;)&lt;/span&gt; &lt;a rel=&quot;nofollow&quot; class=&quot;external text&quot; href=&quot;//wiki.pttlink.org/index.php?title=Topic:U0w8z17vpqo617zk&amp;amp;topic_showPostId=u0w8z18nryhu4kvk#flow-post-u0w8z18nryhu4kvk&quot;&gt;commented&lt;/a&gt; on &quot;Adding/ Editing in the Wiki&quot; (&lt;em&gt;Good Evening Bryan, Just wondering what kinda of permissions do i have. I don&amp;#039;t want to start adding stuff and people get mad. I just got...&lt;/em&gt;)&lt;/span&gt;</summary>
		<author><name>KE8CPD</name></author>
	</entry>
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