The Vertical input on the SB-614 is totally different then what's found in the SB-610.
The SB-610 vertical input (for connecting to the IF output) circuitry has three front end choices. From 1 KHz to 150 KHz, no input or output coils are required. From 455 KHz to 2475 KHz, there in an output coil. For 3000 KHz to 6000 KHz, both an input and output coil are required. The SB-620 not only has three separate mixer input choices, depending on input frequency, but there are also changes required in the sweep circuitry depending on the input frequency. Pete, wa2cwa http://wwwmanualman.com On Mon, 11 Feb 2008 16:20:15 -0800 "Bob Macklin" <[EMAIL PROTECTED]> writes: > I think you have the SB-610 and SB-614 confused with the SB-620 > Panadapter. > > What you state is true of the SB-620. > > Bob Macklin > K5MYJ > Seattle, Wa, > "Real Radios Glow in the Dark" > ----- Original Message ----- > From: "Jim Wilhite" <[EMAIL PROTECTED]> > To: "Discussion of AM Radio in the Amateur Service" > <amradio@mailman.qth.net> > Sent: Monday, February 11, 2008 3:49 PM > Subject: Re: [AMRadio] Using Heath SB 610 Monitor Scope to > monitormodulationonAM transmitter > > > > 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. > > > > 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, 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. > > > > Jim/W5JO > > > > ______________________________________________________________ > > Our Main Website: http://www.amfone.net > > AMRadio mailing list > > List Rules (must read!): http://w5ami.net/amradiofaq.html > > List Home: http://mailman.qth.net/mailman/listinfo/amradio > > Help: http://mailman.qth.net/mmfaq.html > > Post: mailto:AMRadio@mailman.qth.net > > To unsubscribe, send an email to [EMAIL PROTECTED] > with > > the word unsubscribe in the message body. > > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > To unsubscribe, send an email to [EMAIL PROTECTED] > with > the word unsubscribe in the message body. > > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
