[Central-Electronics] 100V antenna relay

[Jim DiMauro]

Eugene:

I wouldn't bother with multiple relays.  Just use a
coaxial switch on the receiver antenna side of the
relay.  That's what I've done for years when I use
multiple receivers with one xmtr.  Nice and clean, and
you'd need a lab instrument to measure the loss
through the switch at HF frequencies.  Just buy a
quality switch and you'll be on your way.

Jim
w2bvm

--- Eugene Hertz <ehertz at tcaf.org> wrote:

> Hi Jim et. al..
> 
> Thanks for the input. I have multiple receivers and
> plan to have 2-3 antennas.  I was wondering if it
> were feasible to hang several antenna relays off the
> 110V socket on the 100V so that I can disconnect
> several receivers from their antennas when I key the
> 100V.  Does anyone else do this? My concern with
> multiple dow relays would be a) too much current
> through the 100V (I think it has an internal relay)
> and b) too much noise closing 2-3 relays at once.
> 
> Does anyone know of a solid state coax relay that
> can handle 100W output?
> 
> Eugene
> 
> 
> >-----Original Message-----
> >From: Jim DiMauro [mailto:radio6146 at yahoo.com]
> >Sent: Sunday, July 17, 2005 09:18 AM
> >To: 'Eugene Hertz',
> central-electronics at mailman.qth.net
> >Subject: Re: [Central-Electronics] 100V antenna
> relay
> >
> >I use a 110 Volt Dow-Key relay with auxiliary
> contacts
> >that I use to mute my receiver. I've used 110 Volt
> >relays on nearly all of my boatanchors without any
> >problems. IMO, routing the receiver audio through
> the
> >100V is a bit clunky, unless of course your
> receiver
> >doesn't have a mute function. Yes, 6, 12 or 24
> Volts
> >is safer than 110 Volts, but then you have no
> business
> >blindly putting your paws behind the xmtr with the
> >thing plugged in anyway :-)
> >
> >Jim
> >w2bvm
> >
> >--- Eugene Hertz <ehertz at tcaf.org> wrote:
> >
> >> hello all,
> >>
> >> just curious. How many 100v owners out there use
> the
> >> plug with 2+4 connected to generate 110V on the
> >> antenna relay jack as opposed to some other
> >> arrangement to perhaps, use a lower voltage
> relay?
> >>
> >> I havent read the manual tooo carefully, but it
> >> seems that you can either have 110V on the relay
> >> plug or just open/short the contact on that plug.
> >>
> >> It would seem safer to use a switchover relay at
> >> 6,12,24 volts as opposed to 110V.
> >>
> >> What do you guys do?
> >>
> >> Also, does anyone use the voice coil contacts to
> >> route the receiver's audio output through the
> 100V?
> >> my receiver has a mute capability which I might
> just
> >> use off the TR relay.
> >> thanks
> >> Eugene
> >>
> >>
> >> _______________________________________________
> >> Central-Electronics mailing list
> >> Central-Electronics at mailman.qth.net
> >>
>
>http://mailman.qth.net/mailman/listinfo/central-electronics
> >>
> >
> >
> >
> >
>
>____________________________________________________
> >Start your day with Yahoo! - make it your home page
> >http://www.yahoo.com/r/hs
> >
> >
> 
> 
> 



		
____________________________________________________
Start your day with Yahoo! - make it your home page 
http://www.yahoo.com/r/hs