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

Mon, 25 Mar 2002 18:48:28 -0700

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/