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Search found 221 matches

by W6JK
Thu Jan 28, 2010 9:39 pm
Forum: Radio Programming
Topic: maxtrac to 900 mhz
Replies: 6
Views: 1850

Re: maxtrac to 900 mhz

You need to replace the trunking firmware with conventional firmware. Further details can be found on the Repeater Builder web site.

'JK
by W6JK
Tue Oct 20, 2009 9:10 am
Forum: Radio Programming
Topic: In regard to MaxTrac 800 ceramic filters
Replies: 6
Views: 1780

Re: In regard to MaxTrac 800 ceramic filters

pjbaron wrote:I am looking for a source of these Toko Filters preferably in the US, having difficulty finding them.

Please advise, thank you. Pete N2ISY

Digikey has the surface mount version - 4DFB-902E-10.

You probably could figure out a way to mount them in place of the through hole parts.

'JK
by W6JK
Wed Sep 23, 2009 10:50 pm
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Quantro low power from FPA
Replies: 5
Views: 1552

Re: Quantro low power from FPA

The Nucleus II rigs I've been working on have a watt meter calibration process you have to go through before you can properly set the output power. It could be that something like what you're seeing could result if this step is skipped. It could also be that your gear is completely different. I neve...
by W6JK
Sun Jul 05, 2009 3:15 pm
Forum: Radio Programming
Topic: P1225-LS Password Protected
Replies: 0
Views: 326

P1225-LS Password Protected

I have a UHF P1225-LS that might actually be useful if I could load a couple of conventional channels into it, but the current programming is password protected. Has anyone figured out a work around for this model?

Jeff
by W6JK
Sat Jun 20, 2009 9:32 am
Forum: Radio Programming
Topic: In regard to MaxTrac 800 ceramic filters
Replies: 6
Views: 1780

Re: In regard to MaxTrac 800 ceramic filters

It it's so touchy that you can't hear the difference between working and not working, maybe the audio level going into the packet modem isn't quite right. I'd try making small adjustments there to see if it gets better or worse. Without the filters, the front end of the receiver is wide open to all ...
by W6JK
Fri Jun 19, 2009 6:36 pm
Forum: Radio Programming
Topic: In regard to MaxTrac 800 ceramic filters
Replies: 6
Views: 1780

Re: In regard to MaxTrac 800 ceramic filters

They're band pass filters, and they're in the receiver. You probably haven't messed with the ones in the IF, so for the front end you need a pair of Toko #6DFB-902E-10, covering 890 to 915 MHz. These would be a good choice tor an amateur repeater receiver too, since they're centered on 902.5 MHz. 'JK
by W6JK
Wed Jun 03, 2009 10:46 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: X9000 VHF, how to crank up the power out?
Replies: 13
Views: 1542

Re: X9000 VHF, how to crank up the power out?

com501 wrote:So, I guess my TPL 50watt in, 350watt out UHF amp in my truck (continuous duty) is a bit much on 440 within 10 miles of the PAVEPAWS?? :lol:

Nah, only transmitters listed in the Repeater Directory can bother PAVEPAWS.
by W6JK
Wed Apr 22, 2009 1:00 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Syntor X9000E on SmartNet Type ll?
Replies: 7
Views: 481

Re: Syntor X9000E on SmartNet Type ll?

Tony.RI wrote:No way to put the thing on 33cm?

Mike B can tell you about that, too. He seems to sense when we're talking about him and turn up in the appropriate threads.

'JK
by W6JK
Wed Apr 08, 2009 12:21 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Toko Filters for Maxtracs & Others
Replies: 9
Views: 5053

Re: Toko Filters for Maxtracs & Others

We're getting pretty good service out of the Post Office. Something must be wrong with it...

'JK
by W6JK
Fri Apr 03, 2009 9:11 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Toko Filters for Maxtracs & Others
Replies: 9
Views: 5053

Re: Toko Filters for Maxtracs & Others

OK Noel, your filters went in the mail this morning. Thanks again!

'JK
by W6JK
Tue Mar 31, 2009 10:14 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Toko Filters for Maxtracs & Others
Replies: 9
Views: 5053

Re: Toko Filters for Maxtracs & Others

OK Noel, I'll be watching for it.
by W6JK
Mon Mar 30, 2009 8:50 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Toko Filters for Maxtracs & Others
Replies: 9
Views: 5053

Re: Toko Filters for Maxtracs & Others

Hi Noel,

Yes, I still have plenty of the 2 pole surface mount filters at $5 per pair.

Jeff W6JK
by W6JK
Wed Mar 11, 2009 10:09 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: MAXTRAC 900 conversion question
Replies: 28
Views: 12504

Re: MAXTRAC 900 conversion question

I've bought dozens of the 900 MHz Maxtracs on eBay. I suppose that would work as well in Ohio. :) I figure the two channel ones are for repeater receivers and transmitters, and the others are for user radios. I knew Dennis in Southern CA, but he could well have gone north later. I always assumed he ...
by W6JK
Wed Mar 11, 2009 9:52 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Moving the MT1000 to 6 meters
Replies: 7
Views: 420

Re: Moving the MT1000 to 6 meters

I think you'll be lucky if it works well over the whole ham band. These radios have tuned circuits that need to be optimized for the frequencies in use. They don't cover the entire split, like the later electronically-tuned radios do.

Jeff
by W6JK
Fri Mar 06, 2009 10:54 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: MAXTRAC 900 conversion question
Replies: 28
Views: 12504

Re: MAXTRAC 900 conversion question

What's the advantage to that, over using the readily-available 900 Rx?

Your call sign is familiar to me. Since Dennis doesn't seem to be around any more, I'm wondering if you knew him.

Jeff W6JK
by W6JK
Wed Mar 04, 2009 11:51 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: MAXTRAC 900 conversion question
Replies: 28
Views: 12504

Re: MAXTRAC 900 conversion question

You're welcome.

If anyone else wants some of the 2 pole surface mount filters, I still have plenty.


Jeff
by W6JK
Tue Mar 03, 2009 1:03 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: MAXTRAC 900 conversion question
Replies: 28
Views: 12504

Re: MAXTRAC 900 conversion question

Hi Noel, I mailed your filters yesterday morning. Since you're in California, you might want to consider using a narrow band 900 receiver instead of the wide band 800 one. You'll have other repeaters on your adjacent channels sooner or later, and you probably don't want their users in your pass band...
by W6JK
Thu Jan 29, 2009 5:57 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Toko Filters for Maxtracs & Others
Replies: 9
Views: 5053

Toko Filters for Maxtracs & Others

See my post in FSWT about a new batch of 902-928 MHz Toko filters.

Jeff
by W6JK
Fri Jan 16, 2009 10:33 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Codenames of Motorola Radios
Replies: 70
Views: 25673

Re:

Will wrote:What about the MOTRAIN. These are the Railroad Motrac, part of the Transistor Reasearch Line.

We called it the Train Trac in the circles I was traveling in..

'JK
by W6JK
Tue Dec 23, 2008 11:25 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MERRY CHRISTMAS
Replies: 12
Views: 964

Re: MERRY CHRISTMAS

Please accept with no obligation, implied or explicit, my best wishes for an environmentally conscious, socially responsible, low-stress, non-addictive, gender-neutral celebration of the winter solstice holiday, practiced within the most enjoyable traditions of the religious persuasion of your choic...
by W6JK
Mon Nov 24, 2008 9:05 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: GTX Handheld not working
Replies: 7
Views: 3848

Re: GTX Handheld not working

Yeah, it's a surface mount part, but if you can figure out which part it is you can replace it with a picofuse from Frys.

'JK
by W6JK
Fri Nov 21, 2008 1:09 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: GTX Handheld not working
Replies: 7
Views: 3848

Re: GTX Handheld not working

Look to see if the mounting lugs on the volume/power control are still soldered to the ground plane on the circuit board. While you're at it check for the same on the rotary switch. There usually isn't enough solder on them in the first place, and any impact to the knobs can break the connection. Yo...
by W6JK
Wed Oct 22, 2008 12:50 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Converting MT1000 to 99 channels?
Replies: 2
Views: 390

Re: Converting MT1000 to 99 channels?

You might want to look for an HT600e.

Jeff
by W6JK
Mon Aug 11, 2008 4:25 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: OT: 75 to 50 Ohm Transformer?
Replies: 5
Views: 524

Re: OT: 75 to 50 Ohm Transformer?

Shame it's not a commercially available product That's probably not pracitical, due to the wide variations in available CATV coax. But there used to be a guy who'd custom-build them for you. You'd send him a few inches of your cable and he'd make the stubs to fit. He advertised for a long time, per...
by W6JK
Fri Jun 27, 2008 10:13 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MT1000 Lo Band portabl Made With All Three Splits In One ???
Replies: 5
Views: 559

Re: MT1000 Lo Band portabl Made With All Three Splits In One ???

Yep, that's a standard-issue radio, and it covers some part of one of the ranges, depending on how it's been tuned. It's not the Holy Grail after all.

Jeff
by W6JK
Thu Jun 26, 2008 9:12 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MT1000 Lo Band portabl Made With All Three Splits In One ???
Replies: 5
Views: 559

Re: MT1000 Lo Band portabl Made With All Three Splits In One ???

It seems highly unlikely to me. What is the model number? A special product that differs from the norm should have an SP code at the end (SP01, SP02...), or, if they made a full production run of them, an X at the beginning (X51LLT CHPTran, for example).

Jeff
by W6JK
Tue May 27, 2008 2:03 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Maxtrac Filters Becoming Unobtanium
Replies: 9
Views: 5030

Re: Maxtrac Filters Becoming Unobtanium

With the change from leaded to unleaded, so to speak, has come a change in the minimum order from 100 to 1000 pieces. That's enough to flood the market for quite some time, so there's little hope of recovering the investment any time soon. However you cut it, someone(s) would have considerable funds...
by W6JK
Mon May 05, 2008 8:25 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX838 Conventional ?
Replies: 8
Views: 499

Re: MTX838 Conventional ?

I suppose I could try it on this UHF one... It worked on the UHF one, too. But, this seems to be a frankenradio that thinks it's a B4 model while actually being a B3. It doesn't know what channel it's on when it powers up. Does anyone know how to fix that? I suppose it could be that the 900 radio h...
by W6JK
Sat May 03, 2008 11:28 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MTX838 Conventional ?
Replies: 8
Views: 499

Re: MTX838 Conventional ?

wavetar wrote:... but the max for conventional is 10.

I have 16 conventional in mine. It's on 900 MHz though, not that I would expect that to matter. I suppose I could try it on this UHF one...

Jeff
by W6JK
Mon Apr 14, 2008 12:06 pm
Forum: Radio Programming
Topic: MSF5000 repeaters in 900mhz - any interest?
Replies: 349
Views: 99138

Re: MSF5000 repeaters in 900mhz - any interest?

Nice work, guys! I sure wish I could have a chance to play.

'JK
by W6JK
Sat Mar 29, 2008 10:14 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: GTX mobile faceplate disassembly
Replies: 1
Views: 2039

Re: GTX mobile faceplate disassembly

First, remove the board with the volume control (and all the rest of the electronics) on it. The board has four tabs that lock into the front plastic (two top, two bottom). You can spread the top and bottom apart with your thumbs while gently pushing up on the buttons with your fingertips. Then you ...
by W6JK
Thu Mar 27, 2008 8:49 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Looking for old Batboard review of 900MHz radios ???
Replies: 7
Views: 3950

Re: Looking for old Batboard review of 900MHz radios ???

This brings up a question I've been pondering. These are all 2.5 kHz radios, but every once in a while I run into someone who wants his to do 5 kHz. I think that's silly, and don't want any part of it, which really seems to annoy these guys. I realize they're not in L.A., but what are they going to ...
by W6JK
Sat Mar 22, 2008 9:15 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: LCS2000 vs GTX, Conventional Options Preference?
Replies: 4
Views: 2762

Re: LCS2000 vs GTX, Conventional Options Preference?

I have no idea what you mean by rebuilding a code plug, but you don't hex the code plug to get the 14 (or 15) channels in. You hex the RSS. My "milage" has been that once you do that, and load the resulting code plug into a radio, you can't read the radio with unhexed RSS. Do you know a di...
by W6JK
Sat Mar 22, 2008 8:54 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: X9000 fail 01/90
Replies: 5
Views: 455

Re: X9000 fail 01/90

Cool! I love it when that happens! :)

'JK
by W6JK
Fri Mar 21, 2008 9:24 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: LCS2000 vs GTX, Conventional Options Preference?
Replies: 4
Views: 2762

Re: LCS2000 vs GTX, Conventional Options Preference?

Unfortunately, you _can't_ just return to the standard channel complement by using the standard software. Once you use the channel hexed software to program extra channels, you can only use such software until you've removed the extra channels.

'JK
by W6JK
Fri Mar 21, 2008 9:00 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: X9000 fail 01/90
Replies: 5
Views: 455

Re: X9000 fail 01/90

Could it be that the radio isn't programmed for MDC 1200, causing a conflict?

Jeff
by W6JK
Thu Mar 20, 2008 9:06 am
Forum: Radio Programming
Topic: MSF5000 repeaters in 900mhz - any interest?
Replies: 349
Views: 99138

Re: MSF5000 repeaters in 900mhz - any interest?

Mastertech wrote:...when I inject a signal into the recieve port, or directly into the RF tray at the SMA it take a massive .480 milivolts to get the machine to go into transmit.

Have you checked the squelch setting?

'JK
by W6JK
Fri Mar 07, 2008 11:31 am
Forum: Radio Programming
Topic: MSF5000 repeaters in 900mhz - any interest?
Replies: 349
Views: 99138

Re: MSF5000 repeaters in 900mhz - any interest?

I have reason to believe that there is a pallet of four on the verge of heading to Los Angeles. All it will take is firm commitments to cover the unclaimed units. Of course, they'll be more expensive when they get here. Talk to Mike at Repeater Builder.

Jeff
by W6JK
Tue Mar 04, 2008 10:40 am
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Maxtrac Filters Becoming Unobtanium
Replies: 9
Views: 5030

Maxtrac Filters Becoming Unobtanium

It looks like supplies of the Toko filters we've been using in our Maxtrac conversions are drying up. Both of my suppliers are completely out of them, and there are three of us that I know of with small personal supplies remaining. When Bob, Derek and I are out of them the only source may be from pe...
by W6JK
Tue Jan 29, 2008 9:20 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Just Bought an MTVA (Jedi Convertacom) Need Q's Answered plz
Replies: 6
Views: 495

Re: Just Bought an MTVA (Jedi Convertacom) Need Q's Answered plz

I think I've read that the 2 channel radios are missing the RF switch, and the others should have it. But you can check by connecting a watt meter between the holder and the load to see if any power comes out. Or you could remove the antenna from the radio and see if it still hears incoming signals....
by W6JK
Mon Jan 28, 2008 1:12 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Just Bought an MTVA (Jedi Convertacom) Need Q's Answered plz
Replies: 6
Views: 495

Re: Just Bought an MTVA (Jedi Convertacom) Need Q's Answered plz

Your controller doesn't have an amplifier in it, so it will work on any band. The hole where the RF input connector goes should be covered. You can connect your external antenna directly to the holder. If your portable has the RF switch in it, it will then use the external antenna when it's in the h...
by W6JK
Mon Jan 28, 2008 12:34 pm
Forum: Converting Motorola Equipment to 900MHz Amateur
Topic: Any gear that does 939 simplex 927 simplex and 927 ham split
Replies: 7
Views: 5092

Re: Any gear that does 939 simplex 927 simplex and 927 ham split

No, you have to try it and see. Some will do it as they come, and some will do it after making some adjustment with Labware. Some, apparently, are immune even to that. My approach was to keep buying radios until I found a couple that worked. They turned out to be MTS2000s, but others have had troubl...
by W6JK
Sat Jan 26, 2008 11:45 am
Forum: Radio Programming
Topic: Help with a GTX900
Replies: 8
Views: 972

Re: Help with a GTX900

The table is incomplete, but you can follow the pattern. Look at the 9th character. U means LTR, and B means PP.
by W6JK
Fri Jan 25, 2008 8:29 pm
Forum: Radio Programming
Topic: Help with a GTX900
Replies: 8
Views: 972

Re: Help with a GTX900

I don't know the answer to your question, but I can tell you that you have a Privacy Plus model that can be made to do up to 15 conventional channels. You will have to have one trunking channel also, which cannot be deleted or hidden. You just have to ignore it.

Jeff W6JK
by W6JK
Sun Jan 06, 2008 9:19 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Weird GTX issues..
Replies: 5
Views: 367

Re: Weird GTX issues..

It could be that the conventional modes are programmed for receive only, but I'd be surprised if Phone mode can override that. It could be that the low battery detect is set too high, but I don't recall that there's a way to set it. I've handled dozens of GTX portables, but I've never seen one do th...
by W6JK
Sun Dec 23, 2007 8:35 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Jedi Missing Pixels FSB *extended* DIY Working Fix Inside
Replies: 52
Views: 36821

Re: Jedi Missing Pixels FSB *extended*

I've been poking around on MOL trying to bring up some reference to the FSB, so I could figure out how to arrange such a repair, but I'm not having any luck. Do I have to do it through a dealer?

Jeff
by W6JK
Wed Dec 12, 2007 9:48 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: antennas for LTS2000
Replies: 13
Views: 738

Re: antennas for LTS2000

Yep, I'm with Terry. I only suspected what was going on because I've seen it before. There's a guy making good money on eBay selling those antenna adapters to people who've been stuck with radios that don't have them. It must be a pretty common problem. The adapter has a couple of slots in the top s...
by W6JK
Sun Dec 09, 2007 8:29 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: antennas for LTS2000
Replies: 13
Views: 738

Re: antennas for LTS2000

It sounds to me as though when you removed the antenna from the radio, the 5880376L01 antenna adapter came with it. In that case, you need to unscrew the adapter from the antenna and put it back on the radio where it belongs.

Jeff

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