hp1:
1st if: 380.075 mhz / 265.550 mhz
2st if: 20.85 mhz or 21.305 mhz (crystal is 21.305 mhz)
3st if: 455 khz
hp1:
1st if: 380.075 mhz / 265.550 mhz
2st if: 20.85 mhz or 21.305 mhz (crystal is 21.305 mhz)
3st if: 455 khz
As was already mentioned the orange is only for backlight.
I'm interested in simulating turning it off with by knob by using a relay. I'd have the power wire go to battery (always hot) , and the new ignition sense to accessory power (switched).
This would allow the radio to write settings to the memory, and power down.
Very easy using a relay connected in series with the power control line.
No - it's part of the volume control. The control consists of a switch for the power to the micro. It's that line you want to interrupt for a soft power-down (the type that writes the card and shuts off). Someone recently posted about a jumper that exists for that line that you would remove and interrupt the line there. I don't have the exact post however.
I REALLY wish Uniden would add the flag in the firmware to let the dim line serve as an ignition control. I suggested that when they first came out. It would be SUCH an easy firmware addition, and would solve this issue.
Sorry to bump an old thread.
I'm using a 536 to feed into a mixer then out to overhead speakers in our fire hall. I've found that in order to get reasonable audio quality the volume control on the 536 has to be maxed (29) and the volume on the channel on the mixer has to be set extremely low or we get a hum on the speakers.
But the audio we do get sounds a bit muffled and bassy. The treble on the mixer is all the way up and the bass is all the way down. Would tapping the discriminator help with that?
The PA from the phone system is hooked up to the next channel over and sounds fine.
You have a couple problems, impedence mismatch and the type of audio amplifier in the 536. You might consider switching to a 996P2 if you need phase 2 or just a regular 996 for p25 or a 15X if you don't need digital. I mention those scanners because they have a dedicated recording output that is at the proper impedence.
A discriminator tap would give you raw, unfiltered signal with no digital decoding suitable only for connecting to a computer to decode. So no, it would not help at all.
See this thread for more info:
http://forums.radioreference.com/un...er-connection-considerations-precautions.html
Sorry to bump an old thread.
I'm using a 536 to feed into a mixer then out to overhead speakers in our fire hall. I've found that in order to get reasonable audio quality the volume control on the 536 has to be maxed (29) and the volume on the channel on the mixer has to be set extremely low or we get a hum on the speakers.
But the audio we do get sounds a bit muffled and bassy. The treble on the mixer is all the way up and the bass is all the way down. Would tapping the discriminator help with that?
The PA from the phone system is hooked up to the next channel over and sounds fine.