Hello,
There has been mention by a few (very old posts) that own them, so as a refresher here's the link:
Wideband RF Multicoupler - 16 Radios, Surge Protected, 50 Ohm
I decided to give one a try given the 15 day return policy. The documentation is adamant that unused ports be terminated. I have the suggested BNC terminators (1/2 watt, 50 ohm) on order. In the meantime I did a preliminary check without them and found this multicoupler's performance to be inferior to that of my 4 and 8 port active Stridsberg units. I have never terminated unused ports on those units and have had no problems. Apparently either it is of the utmost importance with the DLI unit or the one I have is defective.
Testing with an Icom IC-R7100 receiver, I noticed considerable attenuation (or outright non-reception) of signals at higher frequencies, primarily in the 851-860 MHz range, but frequencies in the VHF and UHF ranges are down a bit as well. This is testing with the antenna connected to the multicoupler and then directly to the same antenna via my existing patch panel.
Does anyone have any experience with this? It most assuredly indicates "glaringly" on the front of the unit and in the manual that all unused ports must be terminated, so I'm hoping this is my issue.
Thanks,
Scott
There has been mention by a few (very old posts) that own them, so as a refresher here's the link:
Wideband RF Multicoupler - 16 Radios, Surge Protected, 50 Ohm
I decided to give one a try given the 15 day return policy. The documentation is adamant that unused ports be terminated. I have the suggested BNC terminators (1/2 watt, 50 ohm) on order. In the meantime I did a preliminary check without them and found this multicoupler's performance to be inferior to that of my 4 and 8 port active Stridsberg units. I have never terminated unused ports on those units and have had no problems. Apparently either it is of the utmost importance with the DLI unit or the one I have is defective.
Testing with an Icom IC-R7100 receiver, I noticed considerable attenuation (or outright non-reception) of signals at higher frequencies, primarily in the 851-860 MHz range, but frequencies in the VHF and UHF ranges are down a bit as well. This is testing with the antenna connected to the multicoupler and then directly to the same antenna via my existing patch panel.
Does anyone have any experience with this? It most assuredly indicates "glaringly" on the front of the unit and in the manual that all unused ports must be terminated, so I'm hoping this is my issue.
Thanks,
Scott