[Icom] Quick question...is there a Pro/Pro II reflector?

Tue, 26 Mar 2002 20:01:24 -0500

Why not use optical couplers?  Simple, cheap, safe, silent, and many 
varieties to choose from.  Dave

At 06:48 PM 3/25/02 -0700, you wrote:
>This topic has been beaten to death many times before.  There
>is a huge difference between a resistive load and an
>inductive load (such as a relay coil).  I have designed
>telecommunications equipment for over 25 years driving both
>resistive and inductive loads and relays that had ratings such
>as 1A (for low voltage resistive loads) needed to have that
>rating reduced by a factor of 10 (100mA) when driving inductive
>loads.  I have stated before that I believe the Icom relay
>(which I or anyone else has been unable to find specs on) is
>really a 2A relay contact for low voltage resistive loads and
>the myth that it is really a 200mA relay is based on a lot of
>problems that people have had when driving inductive loads.  Icom
>is not a stupid company and they keep saying that the relay is
>good for 2A.  Don't take my word here.  Many of the big relay
>companies e.g. NAIS, Omron, etc. have app notes saying the same
>thing I just said.  Again, my 756PRO drove a Alpha 99 (25V 7mA)
>for probably 100,000 cycles.  The general failure of the relay
>is sticking contacts which happens in a few cycles.  If anyone
>has a spare OMR-109F relay, I will do some tests.  Any takers?
>
>73,
>Larry Benko, W0QE
>
>
>Steve Jones wrote:
> >
> > Then why are so many people having a problem frying relays with no offense
> > intended. The rating a got for the Pro II and most Icom HF is 16V @ 200 mA
> > DC??? Still a little shaky. Thank you, Steve..
> >
> > ----- Original Message -----
> > From: "Larry Benko" <[email protected]>
> > To: <[email protected]>
> > Sent: Monday, March 25, 2002 6:55 PM
> > Subject: Re: [Icom] Quick question...is there a Pro/Pro II reflector?
> >
> > > Duane,
> > >
> > > I don't believe it.  There is no way that any reed relay
> > > that as you claim handles 13.8V at 1A would not handle
> > > 25V at 7mA which is 7/1000 the amount of cuurnt and only
> > > 2 times the voltage.  You do as you wish but I used my
> > > 756PRO with an Alpha 99 (same keying specs as the 91b)
> > > for nearly 1000 contacts, full qsk, at 35WPM and never
> > > any relay problems.  That is probably 100,000 chances for
> > > the relay to fail.  Remember that the 25V and 7mA are
> > > non-inductive loads.
> > >
> > > 73,
> > > Larry Benko, W0QE
> > >
> > >
> > > Duane Budd wrote:
> > > >
> > > > "The answer is 25v 7mA.  Piece of cake for the ProII relay
> > > > or for that
> > > > matter any relay."
> > > >
> > > > Well, maybe NOT. Here is what I got from Icom Tech support
> > > > when I asked that question:
> > > >
> > > > The rating is 16 votla/2 amps....
> > > > This means you can run a max of 2 amps or 16 volts, but not
> > > > both.....
> > > > Generaly 13.8 volts at 1 amp.
> > > >
> > > > Gerd
> > > > www.icomamerica.com
> > > >
> > > > -----Original Message-----
> > > > From: Duane Budd [mailto:[email protected]]
> > > > Posted At: Sunday, February 17, 2002 11:14 AM
> > > > Posted To: Amateur
> > > > Conversation: IC-756PRO
> > > > Subject: IC-756PRO
> > > >
> > > > I have been told that the manual is wrong with respect to
> > > > the rating of the "SEND RELAY" in the manual is incorrect -
> > > > that the 2 amp rating is wrong and that the correct rating
> > > > is 2100 milliamps.
> > > >
> > > > What is the correct rating, please?
> > > >
> > > > Thanks for your help.
> > > >
> > > > 73...
> > > >
> > > > Duane Budd
> > > > [email protected]
> > > >
> > > > Duane Budd
> > > > [email protected]
> > > > Johnson City, TN
> > > >
> > > > **All outgoing Email is screened by Norton Antivirus**
> > > >
> > > > -----Original Message-----
> > > > From: [email protected]
> > > > [mailto:[email protected]]On
> > > > Behalf Of Larry Benko
> > > > Sent: Sunday, March 24, 2002 10:26 PM
> > > > To: [email protected]
> > > > Subject: Re: [Icom] Quick question...is there a Pro/Pro II
> > > > reflector?
> > > >
> > > > Steve,
> > > >
> > > > GO to Alpha......  See
> > > > http://www.alpha-amps.com/html/ampkey.htm
> > > > The answer is 25v 7mA.  Piece of cake for the ProII relay or
> > > > for that
> > > > matter any relay.
> > > >
> > > > 73,
> > > > Larry Benko, W0QE
> > > >
> > > > Steve Jones wrote:
> > > > >
> > > > > No Problem Adam,. I just wish I could get some simple
> > > > questions answered
> > > > > about the Icom Pro II. They are or should be black and
> > > > white yes or no
> > > > > answers..but I can't get a straight answer. One is I have
> > > > an Alpha 91B
> > > > > amplifier and with my FT1000D I can just hook up a RCA to
> > > > RCA male cable to
> > > > > key the amp. Some have said with the newer amps like mine
> > > > it is no
> > > > > problem..others say no way. There has to be a yes or no
> > > > answer on that
> > > > > question unless you are using older amps such as SB220,
> > > > L4B. etc. Also on
> > > > > the tuner matter...I have heard that if you are going to
> > > > tune the radio on 6
> > > > > meters...you should go in to the menu system and shut off
> > > > auto tune on band
> > > > > change and PTT tune. If you want to tune on 6 meter, leave
> > > > the tune button
> > > > > off and when you dial in a 6 meter frequency and want to
> > > > tune it, you just
> > > > > push and hold the tune button for manual tuning. If you
> > > > don't disable this
> > > > > feature..I have heard the relays get welded together and
> > > > radio has to go
> > > > > back to Icom. Can you give me any straight answers on
> > > > these two concerns.
> > > > > Thanks and 73, Steve, NX1G
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Adam Farson" <[email protected]>
> > > > > To: <[email protected]>
> > > > > Sent: Sunday, March 24, 2002 7:46 PM
> > > > > Subject: RE: [Icom] Quick question...is there a Pro/Pro II
> > > > reflector?
> > > > >
> > > > > > Hi Steve,
> > > > > >
> > > > > > My pleasure! Many thanks for the kind comments. As I no
> > > > longer run the
> > > > > Icom
> > > > > > Net (due to propagation and geographical
> > > > considerations), I try to help
> > > > > out
> > > > > > on the reflector whenever I can.
> > > > > >
> > > > > > Have you checked out the new qsl.net Icom site?
> > > > http://www.qsl.net/icom/
> > > > > >
> > > > > > Best 73,
> > > > > > Adam, VA7OJ/AB4OJ
> > > > > > North Vancouver, BC, Canada
> > > > > > http://www.qsl.net/ab4oj/
> > > > > > Note new e-mail address:
> > > > > > mailto:[email protected]
> > > > > >
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: [email protected]
> > > > [mailto:[email protected]]On
> > > > > > Behalf Of Steve Jones
> > > > > > Sent: Saturday, March 23, 2002 11:52
> > > > > > To: [email protected]
> > > > > > Subject: Re: [Icom] Quick question...is there a Pro/Pro
> > > > II reflector?
> > > > > >
> > > > > >
> > > > > > Thank you for the help Adam , I appreciate it very much
> > > > and especially for
> > > > > > not sending some smart A reply. It really gets old and
> > > > we have a few
> > > > > really
> > > > > > tough guys behind there keyboard that enjoy sending
> > > > nothing but trouble
> > > > > > instead of help. It's simply not needed anywhere,
> > > > especially in Ham
> > > > > radio!!
> > > > > > 73, Steve, NX1G
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "Adam Farson" <[email protected]>
> > > > > > To: <[email protected]>
> > > > > > Sent: Saturday, March 23, 2002 1:59 PM
> > > > > > Subject: RE: [Icom] Quick question...is there a Pro/Pro
> > > > II reflector?
> > > > > >
> > > > > >
> > > > > > > http://groups.yahoo.com/group/ic756pro2/
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > ----
> > > > > > Your Moderator: Dick Flanagan W6OLD,
> > > > [email protected]
> > > > > > Icom FAQ: http://www.qsl.net/icom/
> > > > > >
> > > > >
> > > > > ----
> > > > > Your Moderator: Dick Flanagan W6OLD,
> > > > [email protected]
> > > > > Icom FAQ: http://www.qsl.net/icom/
> > > > ----
> > > > Your Moderator: Dick Flanagan W6OLD,
> > > > [email protected]
> > > > Icom FAQ: http://www.qsl.net/icom/
> > > >
> > > > ----
> > > > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > > > Icom FAQ: http://www.qsl.net/icom/
> > > ----
> > > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > > Icom FAQ: http://www.qsl.net/icom/
> > >
> >
> > ----
> > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > Icom FAQ: http://www.qsl.net/icom/
>----
>Your Moderator: Dick Flanagan W6OLD, [email protected]
>Icom FAQ: http://www.qsl.net/icom/

Dave Wood
1202 Essex Circle
Wilson, NC 27896

Heathkit Collector
Specializing in the clock products