Batboard

W6JK

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

'JK

W6JK

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

W6JK

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...

W6JK

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

W6JK

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 ...

W6JK

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

W6JK

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??

Nah, only transmitters listed in the Repeater Directory can bother PAVEPAWS.

W6JK

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

W6JK

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

'JK

W6JK

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

'JK

W6JK

OK Noel, I'll be watching for it.

W6JK

Hi Noel,

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

Jeff W6JK

W6JK

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 ...

W6JK

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

W6JK

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

W6JK

You're welcome.

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

Jeff

W6JK

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...

W6JK

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

Jeff

W6JK

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

W6JK

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...

W6JK

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

W6JK

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...

W6JK

You might want to look for an HT600e.

Jeff

W6JK

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...

W6JK

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

W6JK

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

W6JK

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...

W6JK

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...

W6JK

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

W6JK

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

'JK

W6JK

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 ...

W6JK

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 ...

W6JK

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...

W6JK

Cool! I love it when that happens!

'JK

W6JK

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

W6JK

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

Jeff

W6JK

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

W6JK

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

W6JK

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...

W6JK

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....

W6JK

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...

W6JK

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...

W6JK

GTXs will do it, as will some Jedis.

'JK

W6JK

The table is incomplete, but you can follow the pattern. Look at the 9th character. U means LTR, and B means PP.

W6JK

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

W6JK

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...

W6JK

Thanks!

W6JK

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

W6JK

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...

W6JK

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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