[ARC5] A-10 Radios

[Bob kb8tq]

Hi

Glonass ( the “Russian GPS”) has been running for almost 20 years now. The latest modernization phase started roughly
10 years back. It has been fully functional for quite a while. The European Galileo is still in the “get enough sats up there”
phase. What they have up works ( with a few failures of various sub-systems causing the backups to come on line). The 
Chinese system is a bit further back than that. The Japanese system is up and running with coverage only in a limited area
(by design). The Indian government is still making noises about doing their own system. We’ll see how that all works out.

Without much effort you can get $10 GPS / Glonass receivers on eBay (USB sticks). They will happily give you a nav solution 
based on either system or on both at once. Many also will do the Chinese and Japanese systems in the part of the world where 
there is coverage. Finding cheap stuff that tosses Galileo into the mix is a bit harder. You probably will have to spend $20 to $30. 

If you have the money, you can get multi band (L1/L2/L5) deuces that will work with the big three ( GPS, Galileo, Glonass). That’s
been true for about 5 years. Why you would pay for the European system when it’s not fully deployed .. hmmm…. ( = that add-on 
may cost about $7,000 alone). If you want to really make it tough on a bad guy, run multi band / multi system. It just costs a 
(gulp ..) little more. 

So no, we are not living in a world with only one sat nav system. 

Bob

> On Jul 12, 2018, at 9:19 PM, Peter Gottlieb <kb2vtl at gmail.com> wrote:
> 
> At this point it seems the govt believes that science and reason are not to be trusted so all decisions must be opposite what the subject matter experts say.  So I have close to zero faith they will do the right thing.
> 
> Is the Russian Glonast system up and running yet?  Is that more robust?  I would think that relying on multiple independent satnav systems would improve the odds that jamming would be detected, etc.
> 
> 
> On 7/12/2018 8:13 PM, Robert Downs via ARC5 wrote:
>> So does everyone else with good sense.  Which doesn't mean it won't be done
>> that way.
>> 
>> Robert Downs
>> 
>> 
>> -----Original Message-----
>> From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
>> Behalf Of Kenneth G. Gordon
>> Sent: Thursday, July 12, 2018 17:38
>> To: Francesco Ledda
>> Cc: 'To: ARC-5'
>> Subject: Re: [ARC5] A-10 Radios
>> 
>> 
>> Personally, I think it is a big mistake to put all our navigation eggs in
>> one basket.
>> 
>> Ken W7EKB
>> 
>> ---
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