On Dec 31, 2010, at 6:20 PM, Alan NV8A wrote:
> On 12/31/10 05:51 pm, I wrote:
>
>> I forget what other components were in the one coax protector I opened
>> up, but there was no gas-discharge tube; there was an MOV, but I don't
>> recall whether it was labeled to indicate its specs.
>
> Now that I have looked again at ICE's document comparing their devices
> with PolyPhaser's, and at the description of the Polyphaser devices on
> the DX Engineering Web site, I see that both say that Polyphaser uses
> gas-discharge devices -- so either I misremembered what I had seen or I
> did not identify the component properly.
MOVs typically have too high capacitance to be used at RF (it low-passes the
signal).
--
Charles M. Coldwell, W1CMC
"Turn on, log in, tune out"
Belmont, Massachusetts, New England (FN42jj)
GPG ID: 852E052F
GPG FPR: 77E5 2B51 4907 F08A 7E92 DE80 AFA9 9A8F 852E 052F
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|