Message 20918 in TECH.WW
From: G8MNY
Date: Thu, 16 Apr 26 08:31:00 Z
Newsgroups: TECH.WW
Subject: RF Field Indicator FL-30AH
Message-ID: <57378_GB7CIP>
Path: N2MH4|NS2B|GB7BED|GB7RJJ|GB7YEW|GB7CIP
R:260416/0832Z 30292@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260416/0831Z 49296@NS2B.#WNY.NY.USA.NOAM BPQ6.0.25
R:260416/0831Z 9881@GB7BED.#21.GBR.EU LinBPQ6.0.25
R:260416/0831Z 11810@GB7RJJ.#79.GBR.EURO LinBPQ6.0.25
R:260416/0831Z 17235@GB7YEW.#79.GBR.EURO LinBPQ6.0.24
R:260416/0831Z @:GB7CIP.#32.GBR.EURO #:57378 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (New Mar 09)
CIRCUIT SW
1-3 3-9 7-20 25-80 90-300MHz
HOW IT WORKS
The input from the telescopic probe feeds RF into the high impedance tuned
circuit with the poly variable capacitor. The 5 pole switch selects the coil
for the chosen band. All coils are fixed type to the tuned frequency scale is
only apporximate. The diode detector drives either headphones or the meter.
Sensitivity is adjusted by the length of the telescopic aerial.
It is not very good at selecting RF so it is not really a wavemeter!
Also look at my TECH buls on "Piston Absorption Wavemeter", "BURNS's MF-UHF
Wavemeter TC-101", & "AKD's VHF/UHF Wavemeter WA1".
Why Don't U send an interesting bul?
73 de John G8MNY @ GB7CIP
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