[HBQRP] FS meters = a few links I googled..

[Joe Eisenberg]

I like one with a single transistor or ic amp...analog meter..not LED bar 
graph..cost/parts count is lower and minimum power draw.
Joe K0NEB
----- Original Message ----- 
From: "Arnie Grubbs" <ka0ncr at yahoo.com>
To: "HBQRP" <hbqrp at mailman.qth.net>
Sent: Monday, September 14, 2009 6:34 PM
Subject: [HBQRP] FS meters = a few links I googled..


> http://www.newcircuits.com/circuit.php?id=msr008
>
> http://www.njqrp.org/sniffer/index.html
>
> http://freecircuitdiagram.com/2009/02/02/field-strength-meter/
>
>
> http://www.zen22142.zen.co.uk/Circuits/rf/fsm.htm
>
> http://www.qsl.net/n9zia/wireless/pics/fs_meter.png
>
> http://www.geocities.com/raiu_harrison/mwa/tech/circuits/circ01.html
>
> Something more interesting...
>
> http://www.utaharc.org/rptr/wdr_fsm1.html
>
> http://www.circuitstoday.com/field-strength-meter
>
> http://www.talkingelectronics.com/projects/FieldStrengthMeterMkl/FieldStrengthl.html
>
> http://www.talkingelectronics.com.au/projects/FieldStrengthMeterMkll/FieldStrengthII.html
>
> http://www.geocities.com/tomzi.geo/fsm/fsm.htm
>
> http://hem.passagen.se/communication/field.html
>
> http://www.electronicsinfoline.com/Projects/Electronics/Detector_and_Sensor,044_Test_and_Measurement/Field_Strength_Meter/rf_field_strength_meter.shtml
>
>
>
>
> Info on use and how they work..
>
> http://www.spectron.us/SM6FIE/Electronics/FSM/RF_FieldStrengthMeter.pdf
>
> http://www.dxstore.com/download/4041.pdf
>
>
> A few ideas I have...
>
> I wonder if there would be an easy way to add something to it so that it 
> would be able to reply back or record?  Maybe a micro-controller and 
> EEprom or something?   I think it would be REALLY cool to have something 
> you could put out in the field, go back to "the shack" and check out the 
> pattern of your Yagi as you rotate it.  OR you could walk around the area 
> and poke a button to record a record number and (relative) F.S. number 
> that could be retrieved for a PC to plot the signal in a spreadsheet.
>
> Having it record, you could go back and make "before" and "after"
> measurements...
>
> A small micro controller chip with simple 'on chip' built in A/D converter 
> would fill the bill, and then software would allow flexibility as to how 
> you would like it to work... If you want more than just a couple of 
> buttons, then you maybe add on a cheap DTMF RX chip and attach your HT in 
> the field and you could have it record the value after the digit goes away 
> while you sit in your shack, or even reply in Morse over the HT if you get 
> creative.
>
> Ah well, just a few ideas I thought I would throw out there as food for 
> thought... I am sure you could come up with some ideas to expand on 
> this... Guess I will crawl back in my hole for a while..
>
> 73 - Arnie KA0NCR
>
>
>
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