To look at the modulated signal you need to do is place the scope probe tip
near the antenna coax and it will usually pick up enough signal. If not
attach a few inches of wire to the probe tip.
Your Hitachi scope will give you a better picture than any of the old
monitor scopes.
73
Gary K4FMX
> -----Original Message-----
> From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of J & B
> Cucuzza
> Sent: Tuesday, July 28, 2015 4:49 PM
> To: amps@contesting.com
> Cc: jcucuzza@industryinet.com
> Subject: [Amps] Transmit signal monitoring AM & SSB
>
> Hi all
> I plan on trying some AM. I remember the old dedicated station monitors
> of the past. I've seen some RF samplers & AF demodulators. These seem
> to be in the $200 + range, along with the used older dedicated CRT type
> station monitors.
> I'm curious as to what folks are using to monitor modulation. I would
> like to see the trapezoid waveform & modulated RF waveforms.
> I'm leaning on home-brewing a set vs buying something that costs over
> $200. Here is a YouTube, there are a few revisions the author has made,
> so it is a bit more complex than the video:
> https://www.youtube.com/watch?v=y4Zt_LJX1Tc
> This second link shows a commercial version:
> http://www.nu9n.com/scope_your_audio.html
> I plan on using a 30 MHz dual trace o-scope, it is a Hitachi V-355.
> Transceiver is a Kenwood TS-580S.
> Amplifier is a Henry 2KD Classic amplifier. (Desktop version, two
> 3-500Z tubes, capacitor filter, no choke.)
> Thanks in advance
> 73
> Joe
> KA8WEP
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