@ John:
Prodelin makes big fiberglass dishes.
PFA 3.0, 3.4 and 3.7m dishes in 8 pieces
_http://www.gdsatcom.com/vsat/datasheets/1000-001.pdf
The 3.7m model costs around $3,800.
Offset 3.8m dish in 4 pieces
_http://www.gdsatcom.com/vsat/datasheets/1000-017.pdf
The 3.8m offset costs around $12,000.
Prodelin also has a 4.5m PFA in fiberglass ($4,500).
You may contact their German office, which carries some of them in stock
_vsateurope@gdsatcom.com
Comtech has a 3.8m dish PFA in fiberglass; 3 pieces; $4,700.
_http://catalog.vincor.com/ProductDetails.asp?ProductCode=COM-38M
Comtech also has a 5m PFA dish in fiberglass.
Alternatively to fiberglass, there are dishes in aluminum in one piece:
Aerial Oy from Finland:
_http://www.aerial.fi/ep/tiedostot/Satellite_communication_antennas.pdf
Dishes available in 3.0m, 4.2m and 5.4m.
I own a 2.4m from Aerial (bought new at the factory); they are superb dishes; the 5.4m costs around 9,500€ if memory serves me right.
Aerial can paint your dish in any REL color of your choice. Nice. Wifey will be happy.
Elite Antennas from UK:
_http://www.elite-antennas.com/
They bought some parts from the bankruptcy of Precision Antennas and started this company. I am not sure of the quality.
DH Antennas from USA:
_http://www.dhsatellite.com/
True Focus from USA:
_http://www.anderseninc.com/satellite/
I am sure there might be some other ones. Please do add.
The choice is large.
I would look for a dish from a reputable firm, who hopefully will be there in the future (for parts, etc.). Yeah, many went bust.
Fiberglass dishes are sure nice, but I don't know of any over 3.0m in one piece, which is a pain and has an impact on performance.
Aluminium dishes on the other hand can be bought in one piece, which is very nice. Downside of alu: sensitive to bumps (be careful with transportation).
Also availability and cost of shipping are very important factors when buying.
Good luck on your next project!
Charly20