Batboard

nmfire10

So you had TX audio and keying tones going to both transmitters at once, but only only one of them was on a channel that could transmit? Innovative. And hey, duct tape worked in Apollo 13 so there is nothing to be ashamed of.

nmfire10

I'll try. This is hard to put in text so bear with me.

There is a main transmitter/receiver. There is a backup transmitter/receiver. There are two other receivers. All are connected to an astrotac voter and DIU30000.

The console has a button for this system that changes "channels". But obviously ...

nmfire10

I've determined that the documentation and description of operation from everyone involved is all wrong. It is physically impossible for it to work the way it is being described. The whole thing would have melted down into a black hole by now if it did.

nmfire10

I think it is highly unlikely that it is the MTR2000 itself. I don't think there is a clock in that thing that knows it is midnight to do anything. So my bets are some piece of dispatch or infrastructure. We also know it is not a remote receiver site because the line card in the voter would time out ...

nmfire10

Well thats a new one. Do you have any audio recording equipment on this system and is voting or just the single station? Is there any aound or just dead keyed

nmfire10

Why don't you duplicate Ch. 1 in Ch. 4 and Ch. 2 in Ch. 3? That way, the Ch. 1 function is achieved by "turning to the stop" in either direction, and the Ch. 2 function is achieved by "turning to the stop and backing off one" in either direction?
I did this with all our fire portables. If you get ...

nmfire10

Ok, this on a $16,000 Quantar on the roof of a 14 story building. I don't think it is a McDonalds drive-through and this is a little more complex than "set the squelch for 7".

nmfire10

I have a the voter's TX pair connected to our audio recorder from a previous troubleshooting mission. Perhaps I'll switch that over to the receiver's pair and see what I get. The I can compare what the receiver itself is spitting out vs what is getting transmitted.

nmfire10

Sorry my responses have been short. I haven't had much time to spend on here. This facility is only my part time job now and I only get calls when something is screwed up. I'm not there all day to trace everything out and troubleshoot. I haven't been on the roof to investigate anything but the MSS ...

nmfire10

That something keying it via wireline is the voter. It indicates that the main station on the roof, (Quantar), is the one receiving it.

nmfire10

PJ, you are thinking the town's PD radio. This is the evil empire in New Haven. All the radio circuits there are immaculate works of art.

nmfire10

Sorry, I was in a rush before. It is a UHF conventional voting system. Only the main receiver up on the roof picks it up. The two indoor receivers do not get this. The system uses a DPL. We've had intermod issues before but nothing like this.

nmfire10

This noise just started and it is getting to be disruptive. I'm puzzled. Everyone is puzzled.
http://www.nmvfc.org/rfnoise.wav

nmfire10

There is a setting in the SCAN PROGRAMMING where you can have it go into monitor while scanning. This is usually the cause of mystery monitor mode. Check that and I'm sure it will fix the first problem.

As for the dotted line, that is weird.

nmfire10

You could ask the owner of the radio what the password is. That would be a good start.

nmfire10

I'm a big fan of the 1/4 wave UHF.

nmfire10

Well you need to have the correct NAC programmed into the Quantar and the radios talking to it. Otherwise it will be like having the wrong PL/DPL with analog.

nmfire10

I'm not advocating either. But if my taxes were at work, I wouldn't want to pay $260 for a $30 part.

nmfire10

Ok. I bought my RS232 serial cable for $30.00

nmfire10

The Gold Elite does not have MDC out of the box. However, all MDC functions come together as one bundle. Each BIM needs and MDC1200 modem.... in english, every channel card needs an MDC card. Once you have the MDC modem hooked up to the BIM you get all MDC1200 functions:

- ID Decode
- Selective ...

nmfire10

There is also a serial cable that is much cheaper than the USB cable. However the USB cable is lightning fast and worth it if you aren't strapped for cash.

nmfire10

That is what I thought, I just wanted to confirm.

The poorly worded documentation says that it is programmed to do so. However I see the same problem as you guys. How the hells does it know which one to use if there are two repeaters.

I believe the DIU is steering which transmitter to use when ...

nmfire10

Your best bet is to ask the lawful owner of the radio what the password is.

nmfire10

Can someone explain exactly how in-cabinet fallback repeat works on a quantar? I can't get straight answers here and I'm concerned the information at dispatch is not very accurate about how to handle a radio or wireline problem. There is a main and backup repeater, both quantars. There is a DIU and ...

nmfire10

If you try to write a previously saved codeplug back into the radio and it doesn't work, you are probably screwed. The only thing you might try is adjusting the com port settings (speed and FIFO buffers). But chances are it is bricked. The only official way to recover the radio is sending it to the ...

nmfire10

I have been running RecAll Pro for probably 4 years now, continuiously without a single problem. It has been 100% reliable. Every day at midnight, it starts a new file and names it according to the date. For example, the file it started this morning is called 09-08-08_Nomad_1.wav.

http://www ...

nmfire10

Virtually all /\/\ commercial and public safety radios have high/low power capabilities. I don't have my old laptop to look at the M1225 RSS but I can look when I get home later.

nmfire10

The flex isn't plugged in all the way, which is why your backlight and power button isn't working right. Pop the head off the adapter plate and push the flex in all the way.

nmfire10

You have to set it for one that does Long A or Long B.

nmfire10

HLA wrote:i use the same cable for m1225's that i do for cdm's

So do I. No problems.

nmfire10

That would be nice but it does not do any such thing.

nmfire10

Don't forget guys. The informer, or a minitor amp charger or a CDM with horn output are doing nothing but drive a relay or give you contact closure. You still need to find a way to interface this into 120v station lights.

nmfire10

escomm wrote:There is no FPP on a CDM1550

Wouldn't that be nice!

nmfire10

You want to adjust the bandsplit? It isn't called a window. To date as far as I know, nobody has managed to hack that. It is not something you can do with any version of CPS.

nmfire10

There is no such setting for muting QC-II tones. The only thing that some agencies do is send the tones in CSQ so users with a PL/DPL equipped radio don't have to listen to the annoying tones. The CDM and HT can be programmed to accept signalling without PL/DPL despite the channel being programmed ...

nmfire10

Riddle me this. Lets say there are two low band radios multicasting a fire dispatch. One is on 46.18 and the other is on 46.36. During this multicast, I start hearing the transmission on 46.06. It is very weak and has lots of noise. It is so week that doesn't do it all the time. Only when conditions ...

nmfire10

And national security agencies are now warning all Americans attending the Beijing Olympics this summer to leave cell phones and laptops at home because, they say, there is a 100 percent likelihood that Chinese agents will scan and steal the contents.

Most likely.

nmfire10

Just a bit.

nmfire10

If you went from 25 watts to say maybe a 1/4 kilowatt, it might be worth the upgrade.

nmfire10

nmfire10

He's talking about the length of the data burst, not the DOS muting on the receiving radios. Go the advanced tab of the MDC personality. Set the bitsync packets for 0.

nmfire10

That wasn't very smart. I hope you have a shop locally that and properly re-tune the pager now that you threw it all off.

nmfire10

There is a squelch softpot for various tuning points in the tuner. However, that isn't going to make interference go away. Its just going to hide it if you crank it up enough.

nmfire10

And here I thought we were the only ones that AT&T liked to mess with. Oh look, there's no dial tone on this circuit so it must not be in use. Lets pull these silly clips and disconnect it. I kid you not, they've done it. Funny noises on the line, you know they're testing and are too stupid to ...

nmfire10

One time, it took AT&T 7 whole entire days to move our service entrance from one side of the building on one pole to the other side on a different pole. The CO is across the street!!!!! I could have tunned under the road with a garden shovel and ran my own new trunk faster. Absolutely 110 ...

nmfire10

I find 25 miles portable-to-portable very unlikely. It is likely the people making those claims are a little off.

nmfire10

I am aware of that. Which is why I'm telling you AGAIN that it doesn't freaking exist. Obviously PJ misunderstood your poorly worded question and nobody promised you anything.

nmfire10

Umm, no he didn't. Are you on drugs or something?

PJ is talking about flashers with multiple selectable patterns. What you want doesn't exist.

nmfire10

Nobody makes anything like that for our purposes. Primarily becuse it is totally unnecessary and there is no market for it. What you want is something you might have more luck in a theatrical shop with. But even then, I doubt you'll find much.

nmfire10

I was thinking more along the lines of two Maxtrac's or GM300's or something of the sort. Even two new but cheap CDM750's would do it. I would imagine the MCS and Spectra would be a little more complex but certainly doable. I've just never messed around with either of those radios to say.

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