04-05-2020, 03:50 PM
(This post was last modified: 04-05-2020, 03:52 PM by Mike Watterson.)
I think the Belling Lee used as a TV connector was acceptable for Band I. It was originally for AM radio! A good F-connector and cable is OK to 2.5 GHz.
Some F-Connectors are very good, others poor. I have some F-socket -> B&L adaptors which save messing about trying to make up a Belling-Lee plug. I have crimp F types that don't crush the dielectric and are nearly waterproof for regular double screened cable and also for the lower loss fatter cable that can be buried. Next size up is main trunk which we only used on huts to masts with 75 Ohm version of N-type. The 10.5 GHz band transceiver is fed with a cable broadband CMTS. The client location has a smaller transceiver using regular RG6/CT100 etc style cable to an indoor cable modem. Mines been running on a near 14km path with 8 Mbps down / 1Mbps up since December 2005. I experimented with SD and HD H.264 channels using DVB-c on the link in a lab using a plug in PCI PC card to generate the DVB-c from a looped file of MPEG-2. That was a 6MHz channel. We also experimented on the 900MHz band using our allocated channels using DOCSIS and and DVB-c on a 2MHz channel with the IF filters swapped. Then the 2008 Bank Crisis hit and all the R&D ceased.
Some F-Connectors are very good, others poor. I have some F-socket -> B&L adaptors which save messing about trying to make up a Belling-Lee plug. I have crimp F types that don't crush the dielectric and are nearly waterproof for regular double screened cable and also for the lower loss fatter cable that can be buried. Next size up is main trunk which we only used on huts to masts with 75 Ohm version of N-type. The 10.5 GHz band transceiver is fed with a cable broadband CMTS. The client location has a smaller transceiver using regular RG6/CT100 etc style cable to an indoor cable modem. Mines been running on a near 14km path with 8 Mbps down / 1Mbps up since December 2005. I experimented with SD and HD H.264 channels using DVB-c on the link in a lab using a plug in PCI PC card to generate the DVB-c from a looped file of MPEG-2. That was a 6MHz channel. We also experimented on the 900MHz band using our allocated channels using DOCSIS and and DVB-c on a 2MHz channel with the IF filters swapped. Then the 2008 Bank Crisis hit and all the R&D ceased.
