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HB9ABX > TECHNIK 26.06.20 15:34l 21 Lines 686 Bytes #999 (999) @ WW
BID : Q6UDB0FHN03V
Read: GUEST DJ6UX DF7EAV OE7FMI
Subj: Field Strength Instrument
Path: DB0FHN
Sent: 200626/1434z @:DB0FHN.#BAY.DEU.EU [JN59NK Nuernberg] obcm1.07b12 LT:999
From: HB9ABX @ DB0FHN.#BAY.DEU.EU (Felix)
To: TECHNIK @ WW
Reply-To: HB9ABX @ HB9EAS.CHE.EU
X-Info: Sent with login password
Field Strength Instrument HB9ABX
This instrument serves to measure precisely the radiated field strength for
comparison of two antennas, and to measure the front to back ratio of
directional antennas.
This instrument has the following specifications:
- Frequency range: 1.5 to 450 MHz
- Dynamic range: over 80 dB
- Accuracy: 0.5 dB
- Measuring modes: selective or broad band
- Operating voltage: 9V Battery
- Current consumption: 12 mA
The diagram and the construcion guide is available here:
http://hb9abx.no-ip.biz/Feldstaerke-Messgeraet/instrument%20field%20strength.htm
Best 73 de Felix, HB9ABX (felix-abx@gmx.ch)
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