windchaser
Member
can anyone tell me if the gre 500+600 series radioes will skip over encrypted channels of lock on to them? thanks windchaser usmm
encryption and the new gre
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walter900
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Interesting, i'd like to know this as well.... If GRE has been able to come up with an improved Digital version of Unidens unique "Data Skip" feature... That would be a cool first for GRE. 
Actually, years ago... One easy way of telling if Uniden or GRE manufactured the scanner for RS was that the GRE/RS made models did not have Uniden's "Data Skip" feature.
If i had to guess though... I would imagine that it would handle digital in the same manor as the GRE made Pro-96 does............. This would be a very good question for one of the beta testers to answer.
Actually, years ago... One easy way of telling if Uniden or GRE manufactured the scanner for RS was that the GRE/RS made models did not have Uniden's "Data Skip" feature.
If i had to guess though... I would imagine that it would handle digital in the same manor as the GRE made Pro-96 does............. This would be a very good question for one of the beta testers to answer.
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bezking
Member
Yeah, I'm curious as to that too.
Hopefully they do, because TGs and F-s that are encrypted are murderous on the ears, since the Uniden scanners usually filter out the ENC, with the ENC indicator. By Filtering out, I mean it blocks the ENC so you don't have to listen to the horrific scrambling noise.
walter900 said:
...and as you've been told a quadrillion times in the other thread -- have no doubt that beta testers signed a NDA which means they can't answer that question.
BaLa
Member
That drives me up the wall on my 96.RobKB1FJR said:
But it is not perfect on the 396t either though.
windchaser
Member
i called gre in ca. today and thay say all tech questions must be summited on there web site and that thay in return will be sent to the question to japan, from there the tech dept will reply to the questions about encryption. just fired off my question, now the wait. windchaser usmm
This is the answer I got back in August 11 when I asked the same question:
http://www.radioreference.com/forums/showpost.php?p=582531&postcount=52
Whether he knows for sure because he's a beta-tester or is his assumption, I don't know....
http://www.radioreference.com/forums/showpost.php?p=582531&postcount=52
Whether he knows for sure because he's a beta-tester or is his assumption, I don't know....
windchaser
Member
well as for me the jury is still out and i will hold on to my money. like many of you I HATE TO LISTEN TO ENCRYRTION. time will tell lets hope it will just skip over it. reguards, windchaser usmm
proquist96
Member
I never noticed a problem with the radio locking on to Encrypted mine skips all that. Are you talking about conventional DG channels? If i tune in to voice channels on my trunked system i can listen to the encryption but it never stops on one. I hope the 500 is much better than the 96 so i can justify buying it. I read the forum and it seems to be conventional,i have none of that here. I cant wait for the discussions when the new GRE's are in the hands of the users.
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Astro25
Member
I don't really play with scanners....but if it's anything like my XTS's, does it sound like "aliens", or like IMBE with glass breaking in the backround? I know when they talk encrypted my LED blinks green and I hear audio, but if not it gives you this horrid shattering/mixed packet sound. I'd hate to have to hear that on a scanner. Yuk. Hopefully it blocks that stuff out.
rananthony04
Member
Astro25 said:
Pretty accurate. My 96 and 2096 have NO problem blocking out ENC TG's and/or freqs., unless(!) I am manually shuffling through known ENC freqs.
We may be talking apples and oranges here. My Pro-96 does not pass over encrypted talkgroups when I am monitoring the trunk in open mode and do not have the TG locked out. When I do lock out the TG it skips over it just fine. Whereas if I understand correctly the 396t mutes the audio when it comes across an encrypted TG that is not locked out.
I would like it to be silent but hope that it would say somewhere on the screen that your on a encrypted freq or id. That way I see how many freq's or id's are going that crappy route.
Like Walter mentioned above, there is lots of times that I hear encrypted channels in the clear so I don't want to lock those out.
Did I just make sense
Like Walter mentioned above, there is lots of times that I hear encrypted channels in the clear so I don't want to lock those out.
Did I just make sense
For which type of system? My 96 ignores all encrypted TGs on 3600 unless someone starts out with a clear call and the reply is encrypted. Ignoring encrypted on 3600 systems is very easy, unless the reply is encrypted.studgeman said:
Ignoring encryption for a conventional P25 encrypted channel isn't easy. There doesn't appear to be a flag to say yes or no it's encrypted. Uniden's do it by analyzing the actual IMBE portion.
Unidens do it by analyzing the talkgroup status bit, the Pro96 does NOT skip encrypted talkgroups on a 9600 system.
You are both correct. Wayne is talking about conventional (non-trunked) P25 (on which there are no talkgroup status bits). For trunked, it does use the status bit.
To do this right ... you need both.
To suppress the awful noise of encryption on a conventional P25 call you have to look at the message header that precedes every super frame. The KeyID and AlgID fields will tell you if the IMBE coded voice bits are protected.
This is also needed to suppress encrypted calls in trunking. On the control channel, the service option bits in the call grant tell you if the voice channel is protected (encrypted). However, the late entry continuation messages do not. When the radio joins the control channel and sees the late entry messages, it doesn't know if it is about to jump onto an encrypted call.
Hopefully this is something that GRE and Uniden (and anyone else) does now.
To suppress the awful noise of encryption on a conventional P25 call you have to look at the message header that precedes every super frame. The KeyID and AlgID fields will tell you if the IMBE coded voice bits are protected.
This is also needed to suppress encrypted calls in trunking. On the control channel, the service option bits in the call grant tell you if the voice channel is protected (encrypted). However, the late entry continuation messages do not. When the radio joins the control channel and sees the late entry messages, it doesn't know if it is about to jump onto an encrypted call.
Hopefully this is something that GRE and Uniden (and anyone else) does now.
proquist96
Member
So encryption can be turned on or off by the user because ive heard encryption on a TG and other times w/o. It would be cool if a PSR-500 cpu upgrade could un-encrypt to solve this problem. Everyone would be happy.
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