[time-nuts] Survey grade antennas

[Charles Steinmetz]

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