Not a direct answer to your question, but from Dan's (N3OX) web site:
23 connectors/adaptors including UHF types, 0.08dB loss on 10m
On 14/01/2012 16:59, Tony wrote:
> I've always assumed that UHF connectors had negligible insertion loss
> below 30MHz, but I recently spotted a couple of quotes on the web that
> put losses between 0.3 and 0.5db @ 30Mhz. If that were the case, the
> cumulative effect of a typical installation with 6 to 8 connectors would
> not be so negligible, especially on 10 and 12 meters.
> I was wondering if anyone has done any tests of their own or if they
> know of a reliable source on the web for this kind of data? Another
> thing that comes to mind is whether there is any additional losses
> associated with UHF crimp-on connectors?
> Tony, K2MO
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