Thanks for the reply.
I downloaded a manual with the filename: Sirius_14250 external Adapter.pdf. Nowhere in the manual does
it reference a model number, but the last page has:
© 2004 Sirius Satellite Radio Inc. Outdoor-Antenna-Install-Manual (v120404)
Some of the specs say:
LNA: Gain ...... 42 dB, typical
Noise Figure .... 0.7 dB, typical
Antenna: ......... Radome: 3 1/4” x 3 1/4”
Cable Type........ RG-58 coaxial
Cable Length ..... 30 feet
Antenna Connector. SMA
Cable Connectors . SMA & SMB
The above antenna as pictured, and from the above radome specs appears square.
There is a Sirius outdoor antenna with "SMA" or "F" connector, which in the SiriusHomeSignalDistributionProducts.pdf both are pictured as having a round radome.
I see most pictures of the Terk SIR6 as a square radome, but I also see google search and ebay listings where more than one model number is attributed to the same picture, and the words Terk and Sirius are associated in no particular pattern.
If I understand, there's a Sirius 14240 (I assume the one for home distribution -- uses RG-6), and a 14250 (comes with 30' of rg-58 sma-smb). Is the Terk SIR6 yet a 3rd antenna model?.
To further complicate, RG-58 is 50 ohm, RG-6 is 75 ohm. The receiver would probably be happier with one over the other. RG-6 would also have less loss than RG-58, which might be offset by the extra adapters and splitters needed.