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BDK wrote:
In article , junkman18 @hotmail.com says... I've almost had it with this 396. I expected quality from Uniden, having purchased the 785D a couple of years ago and being extremely ****ed off with the performance... Many of you guys seem to say your units work fine. I beg to differ! Since 2002, I've been using multiple Motorola ASTRO radios to monitor my public safety agencies--I also used these radios for an unrelated project, so they served a dual purpose. There has never been a problem with "machine gun noises" or "late unmuting" with my ASTRO radios. This 396 is a POS when it comes to decoding P25 transmissions. But I think it's only fair that I allow Uniden to correct the defects via firmware updates, so I will be patient. Let me give a little background on the system I'm monitoring. It's a Motorola SmartZone Omnilink 4.1, 3600bps mixed-mode 800 MHz trunk. I monitor analog/digital comms on my other radios no problem. I use the 396, and I frequently get machine gun noises at the beginning/end of each transmission. I have "fine tuned" (Funny, since you don't have to "fine tune" a Motorola radio) the 396 so the error number is around 2, which is more than acceptable. The firmware version is 1.07.01. The other day, I downloaded and applied the 1.08.07 update--and just as everyone says on here, it makes the scanner perform worse when monitoring P25 signals. I reverted back to 1.07.01, which isn't much better than 1.08.07, but there are less machine gun noises. OK, so by now you're saying, "What's your point". Here's my point: - Uniden, why can you not let us strap analog/digital on a per talkgroup basis, so the silly scanner doesn't try to "sample and guess" when it's receiving, to determine whether or not the P25 IMBE decoder should be applied? This is easy, and solves a lot of problems. This is what the machine gun issue is... The machine gun noise is NOT IMBE, it's just a hang-time/carrier from a quantar that keeps the channel open, and that's why the scanner unmutes to analog and blasts it out of the speaker. It's easy to fix, and I'm not sure why you've had this problem in all of your digital scanners since the 250D? - Firmware testing. Why can't you test it first, or at least let the 396 yahoogroup "beta test" it for you, before releasing it on your website? That way we can report bugs, in a documented way. We use our scanners more than your in-house engineers do. - What's with the cheesy AGC control? It doesn't do anything. It's a useless feature. Why don't you fix it, to make it work similar to the PRO-96? - What' with the HORRIBLE P25 AUDIO?!?!? The audio sounds like a guy talking to me from 20,000 leagues under the sea. I'm sure you can do something (hopefully your firmware update allows you to update the DSP codec?) about this? My Motorola ASTRO radios are all equipped with DSP8, which makes P25 sound superior to anything else out there. I realize this is just a scanner, but man.. if you guys could hear the DSP8 audio from a REAL ASTRO radio, you'd be complaining too. This "warble" effect from the 396 is really bad. The PRO-96 sounds 10x better. I guess I'm just sour after spending $519 on this thing. I hated the 250 and the 785, but thought after 2 years that you'd get your act together before releasing another scanner with poor P25 performance... The other features in the scanner are very nice. I'm impressed with the Close Call feature, and WFM performance on the 88-108 band actually works not too bad. Overall a good scanner, but P25 sucks on this thing. My intent isn't to slam anyone else who bought one. I just want it to work satisfactory in P25 mode. Right now it's really Your results are similar to what a friend of mine is having with his 396. His Pro 96 works well on digital, and he's probably going to dump the 396 on ebay soon. Too bad, it has a lot of great features, but the negatives outweigh the positive. I haven't kept a Uniden made scanner since I bought my BC9000, and it just barely made the "cut", RF performance wise. It's going to be moved down to "back up" very soon. BDK Uniden has a "fix" for this noise you are hearing. You can download the updated firmware (V. 1.7?) (I believe) at their website. |
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#4
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In article ,
says... On Mon, 26 Sep 2005 18:41:47 -0400, said in alt.radio.scanner: Uniden has a "fix" for this noise you are hearing. You can download the updated firmware (V. 1.7?) (I believe) at their website. The new firmware, released 9/26, is 1.09.00. http://www.uniden.com/rn_productsupport_downloads.cfm?product=BCD396T Does it fix the "down in the well" sound? I guess my friend is about to find out.. BDK |
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