I found next;
9.6 Vs 7.2 dB/100ft @ 400 Mhz
1900 Vs 2500 Vmax
Type (/U) MIL-C-17 Z0(Ω) Dielectric
Type Capacitance
(pF/ft) O.D.
(in.) dB/100 ft
@400 MHz Vmax
(rms) Shield
RG-400 /128-RG400 50.0 ST 29 0.195 9.6 1,900 Braid
RG-402 /130-RG402 50.0 ST 29 0.141 7.2 2,500 Cu. S-R
<http://foro.ea1ddo.es/>
________________________________
De: TowerTalk <towertalk-bounces@contesting.com> en nombre de john@kk9a.com
<john@kk9a.com>
Enviado: jueves, 18 de marzo de 2021 13:07
Para: towertalk@contesting.com <towertalk@contesting.com>
Asunto: Re: [TowerTalk] RG402 for Choke/Balun
I have no experience with RG402. It appears to be a little smaller
and it has a steel conductor. What RF properties are better?
John KK9A
Máximo EA1DDO wrote:
Hi all,
I normally use RG400 for chokes on FT240 toroids.
Recently I've tryed RG402 semi-rigid coax cable, the "blue one".
RF properties are quite similar, in fact RG402 seems to be a bit
better than RG400.
Because RG402 is semi-rigid, is much easier to make tight turns on the
toroids, easier to work with.
After some months using it, HF bands legal limit amp, I can't see any issue.
Just wondering if I am missing anything, or if someone else have tried
the RG402 coax.
Thanks
73, Maximo
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