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Search found 46 matches

by njh621
Sat May 22, 2010 7:29 am
Forum: Radio Programming
Topic: NOAA Weather Radio RX Freqs in an HT600
Replies: 4
Views: 559

Re: NOAA Weather Radio RX Freqs in an HT600

You'll probably laugh at this, but I found out that I have programmed everything correctly, it just took moving outside to get a signal. 162.4000 is the correct NOAA frequency for the area. I think because of the channel deviation, depending on the position I hold the radio I actually (and unintenti...
by njh621
Fri May 21, 2010 8:20 pm
Forum: Radio Programming
Topic: NOAA Weather Radio RX Freqs in an HT600
Replies: 4
Views: 559

NOAA Weather Radio RX Freqs in an HT600

Has anyone ever successfully programmed and received from NOAA weather radio freqs? I have the right freqs programmed into the radio but I'm not hearing anything. I've got it set to carrier squelch. Is there anything else I need to do?
by njh621
Thu May 20, 2010 8:36 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MX300 Rubber Replacement
Replies: 7
Views: 518

Re: MX300 Rubber Replacement

Glad to see replacement parts are still available. Exactly how do these PTT buttons pry off the MX300? I tried popping one off with a very, very tiny flat screw driver and ended up breaking it (DOH!). As far as the little rubber disc inside the accessory connector recess on the radio, apparently it ...
by njh621
Sun May 16, 2010 5:09 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MX300 Rubber Replacement
Replies: 7
Views: 518

MX300 Rubber Replacement

Need help on replacing two rubber parts on a few of my MX300 series radios. First off, how do I go about replacing the rubber PTT button? Second, any idea how to replace the round rubber piece in the center of the accessory connector? On nearly all of my radios, that center rubber piece has turned i...
by njh621
Wed Apr 21, 2010 6:37 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Need some MX300 UHF Crystal help
Replies: 6
Views: 514

Re: Need some MX300 UHF Crystal help

Doh! Looks like I did have it backwards. So with that in mind, I will want a 451 RX module. Out of curiosity, where did you look that information up at? I looked the name on the FCC's website, and the information I found that I didn't already know was the call-sign (WPPX518).
by njh621
Wed Apr 21, 2010 5:42 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Need some MX300 UHF Crystal help
Replies: 6
Views: 514

Re: Need some MX300 UHF Crystal help

If I understand how the crystal MX300s work combined with what you said, as long as the frequencies I need are within the RX module +/- the offset module, I should be good? Since they use RX 456.900 (and no, it's not backwards; it's odd but the TX is low and the RX is high), wouldn't I want an RX mo...
by njh621
Wed Apr 21, 2010 5:15 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Need some MX300 UHF Crystal help
Replies: 6
Views: 514

Need some MX300 UHF Crystal help

Need a little crystal-related help. I'm trying to get one of my non-synthesized MX340s to work with the repeater system at the Titan Missile Museum. I talked to the archivist there today and got the go ahead to try this. They are using PL code 6Z (167.9 Hz) and use TX 451.900 and RX 456.900. What cr...
by njh621
Wed Apr 21, 2010 5:00 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Dayton 2010 Whos IN? (can we make this a sticky?)
Replies: 78
Views: 7135

Re: Dayton 2010 Whos IN? (can we make this a sticky?)

Out of curiosity, do you have to pay or get a bus pass to ride the shuttle from the parking to the convention? Also, can you re-enter the convention if you buy something heavy and need to run it out to the car? This is my first time going, and one of the first few road trips I've taken since getting...
by njh621
Sat Apr 17, 2010 8:14 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Need help identifying this Motorola repeater
Replies: 9
Views: 1157

Re: Need help identifying this Motorola repeater

Non-functional would be fine, as the museum has a modern Motorola repeater installed that is UHF (whereas the original USAF system was VHF), and they are using the original antenna system (RADIAX coax). The museum-installed repeater works pretty well!
by njh621
Sat Apr 17, 2010 1:09 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Need help identifying this Motorola repeater
Replies: 9
Views: 1157

Re: Need help identifying this Motorola repeater

Thanks for all of the information. The purpose for the RADIO NET OVERRIDE was for emergencies/propellant transfer operations. The idea was the crew commander or deputy commander could override portable traffic to provide evacuation instructions/etc. Looking at TO 21M-LGM25C-1 (the "owners manua...
by njh621
Wed Apr 14, 2010 11:41 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Need help identifying this Motorola repeater
Replies: 9
Views: 1157

Re: Need help identifying this Motorola repeater

I know for a fact it's a VHF system, because that's what the portables (SP MX340s) are. A couple lingering questions that hopefully someone can answer: 1) The base station was connected to two consoles in the control center, so that the crew can transmit using this repeater by pressing a button at e...
by njh621
Tue Apr 13, 2010 7:39 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Need help identifying this Motorola repeater
Replies: 9
Views: 1157

Need help identifying this Motorola repeater

These two figures came straight from the USAF Titan II ICBM field maintenance tech order for the Radio-Type Maintenance Network, which comprised of all Motorola equipment. To me this looks like either a Micor (because of the test set), or some kind of specialized MTR-300. Any idea? http://farm5.stat...
by njh621
Fri Feb 05, 2010 10:15 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX800 as a trunked scanner?
Replies: 16
Views: 1208

Re: MTX800 as a trunked scanner?

Point taken, so scanner it is. Now hopefully I haven't made anyone's sh*t list :o...
by njh621
Fri Feb 05, 2010 4:42 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX800 as a trunked scanner?
Replies: 16
Views: 1208

Re: MTX800 as a trunked scanner?

I'm not a total amateur; I understand the basics of a trunking system, I'm just not all that familiar with the specifics of each type of trunking. It doesn't take an expert to know that transmission to an unauthorized system is a serious offense. That, and I had a very thorough plan to physically, a...
by njh621
Fri Feb 05, 2010 1:34 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX800 as a trunked scanner?
Replies: 16
Views: 1208

Re: MTX800 as a trunked scanner?

You are better off buying a scanner. Seriously. If you don't have the technical skills to create a system key and modify your radio so it doesn't TX at ALL, you are asking for serious problems with the law. I understand the serious consequences and legal issues at hand here. I have the resources to...
by njh621
Fri Feb 05, 2010 12:15 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX800 as a trunked scanner?
Replies: 16
Views: 1208

Re: MTX800 as a trunked scanner?

The MTX800 won't do type II. It won't handle rebanding. Understood. Suggestion: Sell those doorstops at your local hamfest for a buck a piece and buy a scanner. I'd rather just hold onto them and use them for parts, if I can't do anything else with them. My understanding is that the MTX820/820S, ho...
by njh621
Fri Feb 05, 2010 10:33 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX800 as a trunked scanner?
Replies: 16
Views: 1208

MTX800 as a trunked scanner?

I have a box of MTX800s sitting in my basement, and I figured I'd try to use them for something other than parts. Is there anyway I might be able to turn one of these into a trunked scanner? Particularly, I'm trying to put something together so I can listen into some of the radio chatter on campus (...
by njh621
Fri Feb 05, 2010 9:51 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Suitcase unit questions?
Replies: 21
Views: 5001

Re: Suitcase unit questions?

Hm...apparently I forgot to make good on my promise to post those diagrams. In any case, here they are:

Image


Image
by njh621
Sun Jan 31, 2010 11:08 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Most Rugged Motorola Equipment
Replies: 49
Views: 4759

Re: Most Rugged Motorola Equipment

Another vote for the MX300 Series (including the 300/R). They used those things in the Titan II ICBM program, even during propellant transfer operations! If they can survive Titan's toxic and highly corrosive propellants, they can survive nearly anything. Second vote for the Genesis (HT600/MT1000) s...
by njh621
Wed Jan 27, 2010 1:44 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MX Battery Block/Battery Disassembly
Replies: 7
Views: 1202

Re: MX Battery Block/Battery Disassembly

The LM317 is looking like a winner, I'll just have to figure out the specs of what all to use. In terms of amperage, for the fuse and the diodes, what should I be thinking of in terms of limits? I was thinking something between 0.5A and 1A. Following the basic circuit from http://www.electronics-lab...
by njh621
Mon Jan 25, 2010 9:13 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MX Battery Block/Battery Disassembly
Replies: 7
Views: 1202

MX Battery Block/Battery Disassembly

Hello all, So now that I'm into the MX series of radios, need a little assistance in the area of batteries. In terms of tearing them opening, getting the bottom plate off is an issue/pain in the rear. I've read that if you freeze the pack in question, it causes the glue to fail (assuming it's an old...
by njh621
Mon Jan 18, 2010 11:25 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Dayton 2010 Whos IN? (can we make this a sticky?)
Replies: 78
Views: 7135

Re: Dayton 2010 Whos IN? (can we make this a sticky?)

Seeing as it's a hop, a skip, and a jump from Ohio State, I'll probably be there.
by njh621
Mon Jun 29, 2009 11:34 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MX340 Information wanted
Replies: 7
Views: 611

Re: MX340 Information wanted

That sounds about right. I don't know the exact freqs they used for TX and RX, but I know it was a VHF system.
by njh621
Sat Jun 27, 2009 5:53 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MX340 Information wanted
Replies: 7
Views: 611

Re: MX340 Information wanted

I don't have access to the radio on-hand (it's 2000 miles back at the Titan Missile Museum in Tucson), but if you glimpse at the tech data, there appears to be SP data. The types of transceivers used on site have the same data, SPO1T139.625MHz. Hopefully that helps, otherwise I'll have to email my c...
by njh621
Sat Jun 27, 2009 5:28 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MX340 Information wanted
Replies: 7
Views: 611

Re: MX340 Information wanted

Thanks for the info! I wouldn't be surprised if they were special production. Now the hard part is trying to found equipment like this (and at a decent price). These are the diagrams I pulled from the maintenance tech order. http://farm3.static.flickr.com/2473/3666958040_3f5170ac30_b.jpg http://farm...
by njh621
Fri Jun 26, 2009 8:47 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Suitcase unit questions?
Replies: 21
Views: 5001

Re: Suitcase unit questions?

Even though this topic is pretty old, I came across the same Suitcase repeater model that was mentioned earlier. I found a reference to it in the maintenance tech order for the Radio-Type Maintenance Network used in Titan II ICBM sites. The repeater they used is model P43SYS3180BT. I have a diagram ...
by njh621
Fri Jun 26, 2009 8:34 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MX340 Information wanted
Replies: 7
Views: 611

MX340 Information wanted

A long time ago in a galaxy far, far away (ok not really)....the US Air Force operated Titan II ICBM sites, which had among its several communication systems a Radio-Type Maintenance Net (RTMN for short), which was built entirely by Motorola. The radio net consisted of a base station, a controller (...
by njh621
Sat Sep 03, 2005 8:05 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT600 Programing Connector Help
Replies: 2
Views: 299

Well thats where the connector I messed up came from, and it didn't have pins 6 and 9 on it.
by njh621
Fri Sep 02, 2005 7:27 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT600 Programing Connector Help
Replies: 2
Views: 299

HT600 Programing Connector Help

Hello all. I am in need of help with making an ht600 programing cable. I went to all the trouble of drilling just right and glueing in the pins on the ht600 connector, but messed up on the soldering and I can't get the solder off. Does anyone have an idea where i could get a premade-ht600 end connec...
by njh621
Sat Aug 27, 2005 12:08 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Someone is asking for trouble...
Replies: 1
Views: 565

Someone is asking for trouble...

I found this while crusin' ebay. Looks like they are asking for trouble from big /\/\. Think someone should tell em' about /\/\ software agreement?

<link removed>

Read the forum rules and FAQ. Ebay links in general, and ANY links to the sale or trade of RSS are prohibited. - Wavetar
by njh621
Wed Apr 13, 2005 4:03 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Codenames of Motorola Radios
Replies: 70
Views: 25893

Don't forget the P500, the HT600E, and the HT800 for the genesis series. There's also the MTX, looks like a MTX800 or the MTX810.
by njh621
Fri Nov 19, 2004 4:53 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: HT600 Pin Movement
Replies: 1
Views: 248

HT600 Pin Movement

Hi. I was just wondering if anybody knows how to move the pins in an ht600 mic connector. Thanks.
by njh621
Wed Nov 10, 2004 4:37 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Battery Pocket adapter question
Replies: 5
Views: 372

Nope. The charger pocket on an MTX800/ Genesis charger is molded into the whole plastic top.
by njh621
Tue Nov 02, 2004 1:09 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX810 Question
Replies: 4
Views: 267

Anybody?
by njh621
Tue Nov 02, 2004 12:27 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX810 Question
Replies: 4
Views: 267

MTX810 Question

Hi. Just got my radios back and something strange is going on. Every one in a while, I'll hit the ptt, and makes a sound like a grr, or like a truck running until the ppt is released. The channel is programmed and the codeplug's ok. Could this be a Nextel thing and should I start worrying?
-Nick
by njh621
Sun Oct 24, 2004 5:11 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Getting DOS into a 486
Replies: 22
Views: 895

Check your pms.
by njh621
Sat Oct 23, 2004 11:42 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Ht600 charger question
Replies: 9
Views: 525

Or wouldn't I be better offf with a convert-a-com? Anybody have one?
by njh621
Sat Oct 23, 2004 11:37 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Ht600 charger question
Replies: 9
Views: 525

Is there anyway to make a car charger out of this with just the case in the charger? And the pins that go to the battery? And whats the purple wire for and do i need and what does it do? Run Dertermine if the battery is inserted?
by njh621
Sat Oct 23, 2004 10:54 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Ht600 charger question
Replies: 9
Views: 525

Ht600 charger question

Hi. I'm thinking of turning one of my HT600 chargers into a car charger. This is the standard 1 unit charger, same size as the rapid charger. Will a 12v to 22v ctransformer work if i replace the one is the case, and do i need to change anything else?
Thanks.
by njh621
Sun Oct 17, 2004 5:14 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Microphone Adapter for Motorola HT800
Replies: 3
Views: 429

I've herd motorola made a 3.5mm to Genesis radio adapter, they are like $35. Check ebay or motorola
by njh621
Tue Oct 12, 2004 11:09 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Goofy charger problem
Replies: 2
Views: 381

I've never seen it before, but there's probably a short circuit or loose wire.
by njh621
Mon Oct 11, 2004 10:59 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: programming mt500's and mt-1000's
Replies: 9
Views: 749

If you decide to sell the MT1000 vehical chargers, let me know, I am in need of some.
by njh621
Mon Sep 27, 2004 1:29 pm
Forum: Announcements and Forum News
Topic: Sad news:
Replies: 184
Views: 93079

Monty was a great man.
Thanks for everything Monty.
by njh621
Sun Sep 26, 2004 5:56 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: problems with trunking
Replies: 5
Views: 459

Or give it to somebody, I'll take it. :lol: :lol:
by njh621
Sat Aug 07, 2004 10:44 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX810 Help needed
Replies: 1
Views: 193

MTX810 Help needed

Hello, I have just gotten my x4 mtx810 and I think I have problem. When I press the PTT button on any channel in systems A, B, and C after 1 second it emits a low tone until the button is released. Is this a codeplug error or does that mean trunking is enabled? I'd like to get all four radios to do ...
by njh621
Thu Jul 29, 2004 6:19 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: ONE ON THE RADIOS IN MOVIES TOPIC AGAIN
Replies: 164
Views: 28863

I noticed in Die Hard 2, one of the lobby cops was using an ht600 (the perfect match!) but Lerenzo was using something non Motorola. The cop held it and used it in the right way.

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