At 07:00 PM 26/03/2010, you wrote: >I have finally tracked down a copy of the original RG-21A/U specification, >and have posted it in the Files section of this Group, in the Coaxial Cable >folder. RG-21A/U became official on 07 September 1955, as MIL-C-17/14. >Then, RG-21A/U was replaced by RG-222/U, AKA MIL-C-17/83, on 28 February >1958. RG-222/U was canceled on 12 August 1983, and its replacement was >M17/162-00002, AKA MIL-C-17/162. Both RG-21A/U and RG-222/U are >double-shielded and have a "high-resistance" center conductor, but >M17/162-00002 has a silver-coated solid copper center conductor. It seems >quite odd that a "linear attenuator" cable would be replaced by a cable that >has negligible attenuation. > >73, Eric Lemmon WB6FLY ---- Thanks Eric..Reading the spec, it appears they both have a loss of 33db/100 feet at 400 mhz. Most interesting...
73 Doug
