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Locked Deer Walter Salmaniw is downsizing to a condo -
Please check his listing on HamShack.ca Lots of goodies -- for those in Canada and the America's - fairly affordable
By Robert Newell <coffeecanuck@...> · #17141 ·
Locked Not an antenna but might be useful
While not directly related to loop antennas, there is a folder in
By Jeff Green <Jeff.L.Green1970@...> · #17140 ·
Locked Re: MFJ-1886TR issues
I will try to check some things...... but busy right now with grandsons' playoff hockey. They both play in Brantford AAA and we are travelling all over the place, including Cambridge. Interesting to
By William Rowe · #17139 ·
Locked Re: MFJ-1886TR issues
I also despair when I see the number of W6LVP loops in use, particularly on North American KiWi web sdr's. http://rx.linkfanel.net/ None of them could really be considered to be stellar performers,
By Martin - Southwest UK · #17138 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
John, If, when you're transmitting the dog isn't rubbing his hind end across the carpet and your skin doesn't feel hot you should be good to go. Sounds like a fun project! Carl
By cd_lovitt · #17137 ·
Locked Re: MFJ-1886TR issues
Thanks for your comments. I guess you only listen for HF signals as that's all the MFJ and the W6LVP loop amps are good for. Both have high input impedance which are very poor matches to a loop at MW
By Steve Ratzlaff · #17136 ·
Locked Re: MFJ-1886TR issues
The amp died in my three year-old 1886 (not the TR) due to a very common issue with these models; water ingress. Over time, the elements (sun, mostly) will cause the rubber gasket on the amp assembly
By Dominic Dambro · #17135 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
True. I picked up a somewhat calibrated field strength meter meant to be used for TV antennas. Of course, there is no antenna that comes with it, but it'll tell you the microvolts at the coax
By Steven Greenfield AE7HD · #17134 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
Take a look at: https://www.fcc.gov/general/oet-bulletins-line Go down to OET Bulletin No. 65 (August 1997) On March 8, 2023, there are 3 pdfs that offer some guidance.
By Jeff Green <Jeff.L.Green1970@...> · #17133 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
The SDRplay RSP has a very accurate signal level meter, a fairly accurate 50 ohm input impedance, requires a fairly modest laptop and will allow one to make near lab grade measurements on the
By Jeff Green <Jeff.L.Green1970@...> · #17132 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
The Tecsun PL365 has a very linear dBuV meter function on the input. The antenna factor on 477kHz is 40dB on the internal ferrite loop and 20dB on the external loop stick. I am in the process of
By Andrew Russell · #17131 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
A field strength meter is typically uncalibrated. It is simple a meter, usually in the 10's of microamperes, a high frequency diode to rectify the RF energy, a potentiometer to adjust the DC current
By W0LEV · #17130 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
My apologies - I meant to say 7000 kHz to 19000 kHz, basically 17 meter through 40 meter bands.
By John Dusek · #17129 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
I am curious, which FCC regulation can authorize transmitting in that range? 73, Mike AF7KR
By vbifyz · #17128 ·
Locked Re: Affordable RF Field Strength Meter Recommendations ??
And, I am transmitting in the 7 kHz to 19 kHz range.
By John Dusek · #17127 ·
Locked Affordable RF Field Strength Meter Recommendations ??
Does anyone have a recommendation for affordable field strength meters?? Something under $150 preferably (if that exists). I am using a magnetic loop to transmit data and I am wanting to double
By John Dusek · #17124 ·
Locked Re: MFJ-1886TR issues
In the mean time Bill, check for the usual things like loose coax and power supply connections, and try and measure how much current the loop is drawing. The MFJ-1886 has built in protection diodes,
By Tom - VE3PSZ · #17123 ·
Locked Re: Cross Country Wireless Loop v4
I sure will. It took about three weeks from the time I paid for it to ship but it's estimated to be here by the 13th. I'm still deciding where I'll mount it, though I may just keep it on a temporary
By Dominic Dambro · #17122 ·
Locked Re: Cross Country Wireless Loop v4
Hey, Dominic, can you please report back and let us know your impression of it? It will be great to hear your opinion of it. Thank you.
By Curt Faulk · #17121 ·
Locked Re: Cross Country Wireless Loop v4
Owen, I just got notification yesterday that my V4 loop has shipped. I’m excited to compare it against my MFJ-1886 and W6LVP loops. I use MLA-30+ antennas for experimentation, mostly- not as my main
By Dominic Dambro · #17120 ·