[AMRadio] Mod Monitor

[Bill Guyger]

I be jumping in a bit late, but there's a cool RF sample probe on page 14 of NAVAER 16 - 30 ART-13 -501 available from BAMA or I can send you a CAD drawing in PDF. This thing is designed to do basic RF sampling and generate Trapezoidal traces on a scope for mod monitoring.
 
 
Bill AD5OL

From: Jay Bromley <jayw5jay at cox.net>
To: "'Bob, W4WSZ'" <w4wsz at embarqmail.com>; AMRadio at mailman.qth.net 
Sent: Tuesday, August 27, 2013 7:40 PM
Subject: Re: [AMRadio] Mod Monitor


Hi Bob,
I haven't used the Johnson match box before for an RF pickup, but I am sure
it is doable!  Here are a few ideas that work that are easy to build inside
if you wish.
http://www.k8iqy.com/testequipment/-20dbmcoupler/-20dbmcoupler.htm

IF using high power, just get the center from an piece of RG-213.  Last time
I looked up the center dielectric is good for 6500 volts.  This is the
non-foam stuff.  

Another one I found was here:  http://www.qsl.net/n2ffl/AM.html

Nothing critical here if you like to play and roll your own.

There are some nice ones from Precise RF.
http://preciserf.com/shop/station-monitor-trapezoid-qrp/The nice thing he
provides a trigger so the display is stopped.  If you look in the data
sheets you will see a nice schematic that may give you a few ideas.  Someday
hope to buy one to clean up some of the homebrew boxes here, hi.

73 de w5jay/jay..





-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of Bob, W4WSZ
Sent: Tuesday, August 27, 2013 8:08 AM
To: AMRadio at mailman.qth.net
Subject: [AMRadio] Mod Monitor

On the Johnson Match Box.there is a provision for a probe........has anyone
used this for a means of rf pickup to drive a modulation monitor........if
so, what did you use inside for the pickup.?

Thanks
de Bob

______________________________________________________________
Our Main Website: http://www.amfone.net/
AMRadio mailing list
Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/
List Rules (must read!): http://w5ami.net/amradiofaq.html
List Home: http://mailman.qth.net/mailman/listinfo/amradio
Post: AMRadio at mailman.qth.net
To unsubscribe, send an email to amradio-request at mailman.qth.net with
the word unsubscribe in the message body.

This list hosted by: http://www.qsl.net/
Please help support this email list: http://www.qsl.net/donate.html