[SCCC] VHF Antenna Switch

[Marty Woll]

According to my old Transco catalog, Type N connectors are rated at  around
800 Watts at 144 MHz continuous, so switches with real-world ratings of 1.5
kW at 2m probably wouldn't use them.  Even the Bird pull-turn-push switches
aren't rated for KW+ power.   Transco's switches that handle higher power
(Types MX and DX relays) use Type SC connectors.  My catalog predates the
rise of the 7/8 DIN connector, but look for anyone who makes RF switches
using those.

Another possibility is to contact DX Engineering about their DXE-RR8B-SD
remote antenna switch.  It's rated for 5 kW at 50 MHz, so it may hold up
well on 2m.  It does use UHF connectors, but maybe they would build one with
N's.  Can't hurt to ask.

73,

Marty N6VI

 

-----Original Message-----
From: SCCC [mailto:sccc-bounces at contesting.com] On Behalf Of Dennis Younker
NE6I
Sent: Saturday, December 4, 2021 8:01 AM
To: 'SCCC'
Subject: Re: [SCCC] VHF Antenna Switch

He is needing a switch to switch between antennas. 

--Dennis NE6I

-----Original Message-----
From: SCCC <sccc-bounces at contesting.com> On Behalf Of Tree
Sent: Friday, December 3, 2021 6:31 PM
To: Dennis Younker NE6I <NE6I at cox.net>
Cc: SCCC <SCCC at contesting.com>
Subject: Re: [SCCC] VHF Antenna Switch

Switches or relays?

The old school Dow Key switches are pretty good although I can't verify that
they will handle that much power on 2 meters.

Tree

On Fri, Dec 3, 2021 at 5:40 PM Dennis Younker NE6I <NE6I at cox.net> wrote:

> A gentleman north of us here in California is experiencing failed 
> antenna switches when running 1.5 kW with 50% duty cycle on 2 meters, 
> albeit 60 seconds at a time (IE Q65 mode). Calls to the regular ham 
> radio shops say the best switch is an Alpha Delta but he experiences 
> failures on their
> Delta-4 too. The surge protector is not the issue.
>
>
>
> Does anyone have any suggestions? Are there better switches out there? 
> He uses N connectors.
>
>
>
> --Dennis NE6I

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