I just downloaded the Unitrunker system, but I can't get to the configure page. On the included help guide, it says to press [O] for Options, than [C] for Configure, but on my options menu [C] is Clear Hits. How do I get to configure?
UniTrunker Configure
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Okay, I am using a USB PnP Audio Device, do I leave the input at the default setting, or change it to that?
I have a known control freq. and decoding is on, but I am still getting a "No Signal" message, should I change it from normal to inverted yet
I have a known control freq. and decoding is on, but I am still getting a "No Signal" message, should I change it from normal to inverted yet
How do you find the audio device control panel?
How do I configure this: (from the main page)
Using shielded audio cable, the signal can be brought into the computer by way of a sound input (like microphone or line input)
How do I configure this: (from the main page)
Using shielded audio cable, the signal can be brought into the computer by way of a sound input (like microphone or line input)
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sc8 said:
Something like this ...
Click the [Start] button on the taskbar. Select "Control Panel". The exact location of the control panel menu item depends upon your version of Windows. The following steps work for at least one version of Windows XP ...
Double-click "Sounds and Audio Devices".
Select the "Audio" tab.
Click the "Volume" button under "Audio Recording".
At this point - the specific controls displayed will depend upon your hardware.
Thank you.
One more question, how do I use the microphone , or the line-in method. It says on the first page of the UniTrunker manual
Using shielded audio cable, the signal can be brought into the computer by way of a sound input (like microphone or line input), but I am not sure how to do this, is it just holding the radio to the microphone or do they need to be connected
One more question, how do I use the microphone , or the line-in method. It says on the first page of the UniTrunker manual
Using shielded audio cable, the signal can be brought into the computer by way of a sound input (like microphone or line input), but I am not sure how to do this, is it just holding the radio to the microphone or do they need to be connected
Most desktop computers have three audio connectors - (1) speaker/headphone, (2) line input, and (3) microphone input. Some laptops omit the line input. You want to use a cable to directly connect the radio to one of the computer's sound inputs.sc8 said:
sc8,
I don't see any mention of a discriminator tap in this thread. Do you even have a discriminator tap on that scanner?
Mike
I don't see any mention of a discriminator tap in this thread. Do you even have a discriminator tap on that scanner?
Mike
sc8 said:
Ok. You don't hav ea discriminator tap if you have to ask
But that's what you need if you want 100% decode rates.Look on the Wiki for your particular scanner model and see if there is anything listed for discriminator tap mods. If you want to monitor anything other than Moto 3600 baud, you want audio tapped from the discriminator. Just plugging your scanner audio into your computer audio won't allow you to monitor EDACS, LTR, or P25 control channels.
Mike
If I don't have one, can it still decode another way? What if I just plug an audio cable from the headset jack into the computer, get a buffer amplifyer and then sort out the data, the usage of the system, combined with the fact I have it closed, and that I can only hear one tower consistently means there is not a lot of data
If I do need one, is there a place in the NY NJ area that installs one for a fee, I am not really up on sodering.
If I do need one, is there a place in the NY NJ area that installs one for a fee, I am not really up on sodering.
sc8 said:
Supposedly somewhere on the Wiki there is information on a few places (nationally) that you could send your scanner to and have it tapped. Otherwise, I don't think there is any 'documented' place that does exactly this. There are tons of places (radio shops) that _could_ do it though I am sure.
Unless you have a scanner with PC/IF output (like the GRE PSR500/600 and supposedly some others), then you'll need a discriminator tap. Some programs require a discriminator tap, with the audio then run through a two-level data slicer and then into your PC serial port. Other programs (such as Unitrunker) will allow you to feed the audio right into your soundcard as long as its discriminator output.
For any more of a technical answer than that, you'll have to hope that somebody else responds to your question.
Before I had a discriminator-tapped scanner, I used to frequently monitor Motorola Type II systems by simply feeding the audio right into my soundcard. This is not 'supported', but as you can see it often works (with degraded performance - nowhere near 100% decode). But it's enough to wet your appetite and get some enjoyment out of Unitrunker. But the lack of a discriminator tap will limit you in the long run if you want to scrutinize trunked radio systems.
Mike
sc8 said:
What kind of scanner do you have?
Mike
Pro-97.
The port is on the right side, right under the display and is labeled PC/IF. I've never tried an actual audio cable into that port yet, but a TV audio that fits there sends it into CLONE mode. I can use this to download data to and from Win97
The port is on the right side, right under the display and is labeled PC/IF. I've never tried an actual audio cable into that port yet, but a TV audio that fits there sends it into CLONE mode. I can use this to download data to and from Win97
sc8 said:
You shouldn't plug anything into that except for what is supposed to be plugged into it. The question is, what is supposed to be plugged into it.
I am not sure that the PRO-97 outputs discriminator data. The PC/IF port on older models typically just provides a means for uploading/downloading data and maybe upgrading firmware.
Look at this thread: http://www.radioreference.com/forums/showthread.php?t=92457&highlight=PC/IF+PRO-97
That's probably a cable similar to what you need. However, even if you were to go the PC/IF route, you have to make sure that your particular scanner will output actual discriminator data over that cable. PSR-500/600 does it and I think somebody may have mentioned that this might be possible on the PRO-96/2096 (I'm not sure), but I am definitely have no idea if the PRO-97 PC/IF port provides that.
If it does, then you need the proper cable. If it doesn't, then you need a discriminator audio tap.
Mike
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sc8 said:
If you're using headphone audio - you do NOT need a buffer amp. The difference between speaker / headphone audio and discriminator audio is the filtering. The speech filter makes the audio sound cleaner with respect to noise but distorts the waveforms found on a control channel.
Here is an article from the wiki on how to tap the discriminator audio on your PRO-97, making the signal accessible outside the radio.
You can use speaker audio to decode - but you will get poor results. Please keep the audio turned down so as not to damage the computer sound input. Start with zero volume and gradually increase.
As Mike was saying ... the PC/IF port is meant for plugging into a computer serial port, not a sound port.
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