[AMRadio] Using Heath SB 610 Monitor Scope

Bob Macklin macklinbob at msn.com
Mon Feb 11 22:36:09 EST 2008

It's my impression after reading the SB-610 manual the SB-610 vertical input
can be wired for RTTY or RF envelope of the receiver IF. I assume in this
case the sweep generator is wired to the horizontal channel.

I have no idea how mine is wired.

I assume that one uses the RTTY position of the mode selector to display the
receiver IF envelope.

This does not seem to be very useful when monitoring a SSB receiver.
----- Original Message -----
From: "Geoff/W5OMR" <ars.w5omr at gmail.com>
To: "Discussion of AM Radio in the Amateur Service"
<amradio at mailman.qth.net>
Sent: Monday, February 11, 2008 7:18 PM
Subject: Re: [AMRadio] Using Heath SB 610 Monitor Scope tomonitor
modulationonAM transmitter

> Jim Wilhite wrote:
> > To anyone considering an SB 610 or 614, keep in mind they must be
> > constructed to match the IF frequency of the receiver to which they
> > will be interfaced.
> Uh...
> I was under the impression that the 610 / 614 monitor scopes were for
> monitoring the 'transmitted' signal.
> >
> > Some of them were built to work with the Heath receivers with the 3
> > meg IF and those that were built for 455 Kc. had the coils that would
> > do so.
> >
> > If you find one for with the 3 Kc IF coils,
> kc?  you said 3meg(sic).  Which is it?
> > it won't work properly with a NC 300 or NC 183D for example.  Heath
> > packaged the coils for both with the units and the builder chose which
> > he wanted.  I doubt you will receive the coils that were not used
> > during construction.   Check them out before you find you have
> > something that won't work with your receiver.
> Sooooo...
> I was under the impression that the 610 / 614 monitor scopes were for
> monitoring the 'transmitted' signal.  Since I wasn't sure, I went looking.
> http://web.comhem.se/~u87540545/Heathkit/Products/pageSB610.htm
> Heathkit SB-610
> The Heathkit SB-610 monitor scope is primarily designed for monitor the
> RF-signals, on-the-air signals, from the local transmitter. It can also
> be used to monitor received signals when connected to a receiver.
> It monitors RF-envelop, RF-trapezoid and RTTY pattern. SB-610 has also a
> built-in two-tone sinewave AF-oscillator for SSB-transmitter adjustment.
> The Monitor-Scope matches the SB-line.
> --
> Driving your AM Rig without a scope,
> is like driving your car at night, without headlights. (K4KYV)
> --
> 73 = Best Regards,
> -Geoff/W5OMR
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