[time-nuts] Survey grade antennas

[Bob kb8tq]

Hi

If you dig into the data on the antennas …. ( they are fully tested and doccumented …) 

The Novatel design does a *very* good job. Indeed they are *much* better than an old style
giant choke ring design. Normal list price is roughly 10X what that listing shoed. Similar antennas
normally sell for $600 to $1200 on eBay.  Indeed the 703 GGG *is* discontinued as a brand new
product. That’s also true of a number of pretty expensive antennas you see on eBay.

These are *not* the same thing as the low cost stuff from China.

Bob

> On Nov 18, 2020, at 5:49 PM, Charles Steinmetz <csteinmetz at yandex.com> wrote:
> 
> Stu wrote:
> 
> >> The usual auction site has a few true survey grade antennas for a very good
> >> price. Search for Novatel GPS-703-GGG. These cover all three frequency
> >> bands (L1, L2, L5), which is still unusual to find in surplus.
> 
> Bob wrote:
> 
>> ….. and now they all seem to have been sold
> 
> If you look at the auctions linked from that one, you will find dozens of other listings for similar multi-band antennas -- some of them considerably less expensive than the Novatel.
> 
> Note that the Novatel information admits that the antenna is not a choke ring design, but instead claims that it provides "Choke ring antenna functionality without the size and weight."  Also note that the Novatel datasheet makes no reference to it being a survey-grade antenna.
> 
> I did not look carefully at the listings for the other tri-band "survey" antennas on ebay, but I assume the same is true of them.
> 
> Best regards,
> 
> Charles
> 
> 
> 
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