AR-DV1 AR-DV1 - GSSI upgrade - observations

Tom07

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Yes that's now fixed and GSSI's are saved after Power down. Working ok now with my DV1. I think it was more of a fix than an update. Or maybe im wrong? Anyone else updated to this version?
 

MStep

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Yes that's now fixed and GSSI's are saved after Power down. Working ok now with my DV1. I think it was more of a fix than an update. Or maybe im wrong? Anyone else updated to this version?

And please keep us posted. I'm not sure what they did as I did not opt for the GSSI option, but I'm always concerned whether other variables might have been added or subtracted from the radio. So please keep us posted of any peculiarities that might have been introduced not related to the GSSI update/fix.
 

Tom07

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Nov 28, 2021
Messages
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Northern Ireland
And please keep us posted. I'm not sure what they did as I did not opt for the GSSI option, but I'm always concerned whether other variables might have been added or subtracted from the radio. So please keep us posted of any peculiarities that might have been introduced not related to the GSSI update/fix.
It's basically just for the GSSI fix for the paid for upgrade. I think that's why it had to be fixed. If there's a flaw in a paid for upgrade, it had to be fixed. It now working as it should.
 

G7HID

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It's basically just for the GSSI fix for the paid for upgrade. I think that's why it had to be fixed. If there's a flaw in a paid for upgrade, it had to be fixed. It now working as it should.
AOR have previous for fixing one fault but causing another :confused:

Mike
 
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Feb 14, 2022
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Hello at all,
I have also given my DV-1 the GSSI option. Apart from the high price, the option (at least in Germany) is not very useful. I have now noticed several times that in VFO mode conversations take place on a frequency, after switching to the GSSI mode is no longer heard. Also no GSSI number is displayed. After switching back to VFO mode, the conversations are audible again.
Furthermore, the DV-1 is not able to display e.g. the MNC or the CC. Only with the GSSI numbers no satisfying assignment of a service is possible. AOR has not done itself any favors with this expensive upgrade, at least not for customers in Germany.
 

MStep

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May 2, 2005
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2,186
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New York City
Hello at all,
I have also given my DV-1 the GSSI option. Apart from the high price, the option (at least in Germany) is not very useful. I have now noticed several times that in VFO mode conversations take place on a frequency, after switching to the GSSI mode is no longer heard. Also no GSSI number is displayed. After switching back to VFO mode, the conversations are audible again.
Furthermore, the DV-1 is not able to display e.g. the MNC or the CC. Only with the GSSI numbers no satisfying assignment of a service is possible. AOR has not done itself any favors with this expensive upgrade, at least not for customers in Germany.

Thank you for your very frank and honest appraisal. As many have conjectured, AOR may have had some of their engineers ravaged during the Covid crisis. It may work better on the $4,799 USD version of the AR5700, but it seems to have been a last-minute addition sandwiched into the DV1.

I'm sure your post will help many save money on a GSSI addition that may not function as envisioned.
 
Joined
Feb 14, 2022
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Hello at all,
I did some more tests with the DV-1 and an Airspy mini (with TETRA decoder).
Thereby I noticed the following. I have both receivers set to 428.43750 MHz.
If I now activate the GSSI mode on the DV-1, it jumps to 423.16250 MHz, but the
Airspy mini shows 428.43750 MHz as master frequency. If this is the case, the
DV-1 should not jump over (or do I have a thinking error here)?

Furthermore, the DV-1 in GSSI mode very often shows the 423.16250 MHz as
master frequency, but I don't think that this frequency can be present more than 10 times, right ?

If I watch a frequency with the DV-1 (in GSSI mode) it jumps sometime to
1030 MHz (as master frequency). Also this can not be normal. Has anyone
else noticed this or similar observations on their DV-1 with GSSI option ?

Best regards,
MIke
 

Ubbe

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Stockholm, Sweden
If I now activate the GSSI mode on the DV-1, it jumps to 423.16250 MHz, but the
Airspy mini shows 428.43750 MHz as master frequency. If this is the case, the DV-1 should not jump over (or do I have a thinking error here)?
It seems that the GSSI program uses the info about adjacent sites that are sent out on the control channel and switches to the strongest site. That is something you usually want if you are mobile and driving around in the area, that it always jumps to the strongest site. If monitoring from home you would probably like to be attached to the site that has the most important calls and that could be a more weaker site. So ideally it should be selectable if you want to roam or not.

It's probably the exact same firmware code written for the GSSI feature for both DV-1 and DV-10 when a portable should have the roaming function but the mobile/base the non roaming version. But best would be to have a menu selection for roaming On/Off.

/Ubbe
 
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Thanks for your Answer Ubbe,
Maybe I expressed myself wrong, I have two receivers (DV-1 and Airspy mini) which are operated at the same location
and also receive the same frequency (428.43750 MHz). The DV-1 then shows as alternative frequency (in GSSI mode) 423.16250 MHz,
but the Airspy mini shows 428.43750 MHz.
Two receivers that receive the same signal at the same location should also receive identical data from the transmitter and display
the same alternative frequency, right?

73 Mike
 

Ubbe

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The DV-1 then shows as alternative frequency
Aha, okay. I'm not sure what you mean by alternate frequency, or what AOR thinks it is. There can be up to 16 alternate frequencies, or adjacent control channel frequencies, that a site transmits as information so that a radio knows what site it could jump to that has the best signal strength. You can see all that data in SDS# tetra plugin Net Info as Current cell and Neighbour cell. If it only shows one alternate frequency it probably has to pick one randomly that happens to be in the datastream at that particular time.

/Ubbe
 
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Best thanks Ubbe, again what learned.
I was not aware that there are so many alternative frequencies (up to 16).
PS: Excuse my bad English. It is now over 30 years ago and on the level what I learned in school.
 
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Here is an addition to my observations (tests) with the GSSI function of the DV1. This function is not worth the money, mostly not to use.

When I set a Tetra frequency (as an example 426,91250 MHz) and then
activate the GSSI mode the receiver almost ALWAYS jumps to 428,43750 MHz. I compared this to the
AirSpy Mini and it provides the correct master frequency.
If the DV1 finds the correct master frequency in GSSI mode (which is very rare) the receiver often remains
mute, jumping back to the normal Tetra mode, calls can be received. Also, it often happens that the DV1 in
GSSI mode displays corresponding group numbers (group is active and it is spoken) but he receiver remains mute.

All in all, this feature is not worth the money it cost. Also the USB port is constantly causing problems, it is not
possible to establish a stable data connection over it, most of the time the port is not recognized at all.
What happened to the quality and reliability of AOR? I used to have the AOR AR 3000A and the AOR AR 8200,
both were great receivers, the AOR AR DV1 falls far short of these devices.
 
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