The DELTA-4 that I purchased new in December 2004 shorted out during the
last CQ160CW while I was running 100W (yes one hundred) into an inverted-L
with 1.6:1 SWR.
73,
Julio VE3FH
----- Original Message -----
From: "Dick White" <whiter26@sbcglobal.net>
To: "RTTY Contesting" <rtty@contesting.com>
Sent: Sun, Mar 16, 2008 11:37
Subject: [RTTY] FW: MFJ Antenna Switches
> I have used the Alpha Delta antenna switches for many years. I have an
Alpha
> Delta-2 and Alpha Delta-4. I have never been aware of them getting warm or
> hot. I like the neutral position that is disconnected from the antennas,
and
> that the switch is grounded. My two switches are over 20 years in service.
>
> 73 Dick KS0M
>
> -----Original Message-----
> From: rtty-bounces@contesting.com [mailto:rtty-bounces@contesting.com]On
> Behalf Of John Elsik
> Sent: Sunday, March 16, 2008 10:46 AM
> To: rtty@contesting.com
> Subject: Re: [RTTY] MFJ Antenna Switches
>
>
> Of course there is some "heat" from the relay coil.
> It depends on "what" is getting warm.
> The MFJ switches are clearly not rated for 1500W Rtty.
> The published specs speak for themselves(2kw pep/1kw cw).
> Ameritron switches are rated higher, spec wise, and are still reasonably
> priced.
> It also depends on what the antenna SWR is.
>
> ---73 from Ian GM3SEK
>
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty
|