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> HF Circuits
Topic Title Topic Starter Replies Views Last Action
No New Posts   Sagem Rm-540-u (406-470mhz)
need a bit more info..
gremlinsa 5 2,735 June 01, 2016
Last Post by: gremlinsa
No New Posts   Ground Planes
kellys_eye 3 1,525 November 27, 2015
Last Post by: CoulombMagician
No New Posts   Which Rf Bandwith To Choose ?
RF Bandwith choice
chris007 1 600 November 23, 2015
Last Post by: gremlinsa
No New Posts   Rf Inline Fuse Identification
~1970s tech
fenugrec 3 2,720 January 31, 2015
Last Post by: fenugrec
No New Posts   Varactor Versus Capacitor
kellys_eye 4 1,643 January 31, 2015
Last Post by: CWB
No New Posts   Antenna Analyzer Issue
AW07A / MFj-266
Skeith 16 2,856 January 18, 2015
Last Post by: CWB
No New Posts   Toroids And Relays
kellys_eye 4 1,897 September 27, 2014
Last Post by: kellys_eye
No New Posts   Dust Iron Vs Ferrite
kellys_eye 8 2,776 February 15, 2014
Last Post by: kellys_eye
No New Posts Got Me A Sdr   12
Geek 43 7,783 February 04, 2014
Last Post by: Nothing40
No New Posts   Pint Fueled Q Of The Week
TC upper frequency?
Jimthecopierwrench 7 1,943 February 03, 2014
Last Post by: Sch3mat1c
No New Posts   Electronics Now! December 1996
Seeking A Specfic article and 2 followup
Techowl 11 3,790 January 12, 2014
Last Post by: CWB
No New Posts   Simple Bpf Vs Cavity Filter
Fovakis 10 2,226 October 12, 2013
Last Post by: Fovakis
No New Posts   Down Converting An Rf Cw Signal And Then Back Up
FM modulating a CW signal
jomac 3 1,776 October 07, 2013
Last Post by: Sch3mat1c
No New Posts   Weird Signal I Can't Identify
Skeith 5 1,915 September 26, 2013
Last Post by: Geek
No New Posts   Circuit To *create* Speaker Interference
Dr.Mentalist 15 13,448 August 23, 2013
Last Post by: Geek
No New Posts   Megawatt Pulse Generation
The Observer 20 4,208 August 10, 2013
Last Post by: OpenLoop
No New Posts Pmr446 Transmitter
Where can I find it!
Robert Moyse 4 2,219 August 08, 2013
Last Post by: CWB
No New Posts   Dsp Nominal Signal Level For Audio?
Fovakis 0 1,981 June 28, 2013
Last Post by: Fovakis
No New Posts   X Ray Weapon.
FBI claims credit for vaporware
johansen 5 2,333 June 21, 2013
Last Post by: Geek
No New Posts   Receiver's Noice Input =k*t*bweq ?
Fovakis 4 2,145 June 13, 2013
Last Post by: Fovakis
No New Posts   Rf Attenuators In Mixer's Input Port
Fovakis 0 2,039 May 28, 2013
Last Post by: Fovakis
No New Posts   Wireless Camera Driving Circuit And Mems
Camera Integration Transmission and Rec.
mekitron 2 2,258 May 26, 2013
Last Post by: mekitron
No New Posts   I&q Modulator Questionss
Fovakis 7 3,244 May 24, 2013
Last Post by: Fovakis
No New Posts What Synthesizer I Need?!>
Fovakis 23 2,500 May 19, 2013
Last Post by: Fovakis
No New Posts   Morse Code Communication Using Fm Frequency
StrawberryBro 6 3,598 March 19, 2013
Last Post by: Geek
No New Posts   A Frequency Synthesizer Using A Pll For An Undergr
Funkymix89 0 2,520 February 28, 2013
Last Post by: Funkymix89
No New Posts   Ne602 - Calculating Input Bandpass Filter
atferrari 4 4,480 February 23, 2013
Last Post by: Geek
No New Posts   Rf Comunicatin Modules
priestnot 4 3,264 January 04, 2013
Last Post by: gremlinsa
No New Posts   Wasn't Someone Looking For An Rds Decoder A While
back?
Geek 1 2,274 December 20, 2012
Last Post by: CWB
No New Posts   We Haven't Had A Radio Thread Here In A While
Yup, about that time again
Sch3mat1c 18 5,248 November 18, 2012
Last Post by: Sch3mat1c
No New Posts   Rf Humming During Cell Phone Call
mega_processor 9 3,412 November 11, 2012
Last Post by: Geek
No New Posts   Long Range Data Transfer (wireless)
mega_processor 19 4,965 November 10, 2012
Last Post by: mega_processor
No New Posts   Broadband Pre-amp Circuit Needed.
machine 3 3,091 September 23, 2012
Last Post by: machine
No New Posts   Power And Gain Relation
mega_processor 8 3,301 September 17, 2012
Last Post by: mega_processor
No New Posts   Radio Scanner
Unlocking locked bands.
Skeith 2 4,791 September 11, 2012
Last Post by: Skeith
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