Message 28033 in TECH.WW
From: G8MNY
Date: Sun, 16 Aug 26 07:54:00 Z
Newsgroups: TECH.WW
Subject: Rotator Yaesu G250 info
Message-ID: <2129_GB7CIP>
Path: N2NOV|N2MH|N2MH4|N3HYM|IW2OHX|GB7CIP
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From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (New Jan 06)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
This is small basic and reliable rotator with pot control and self hunting etc.
_
DIAGRAM
(N.B. Incomplete diagram) * External Connections
DESCRIPTION
Two relays power the 2 pole AC rotator motor on either line 4 or 5. The Run LED
is lit when either is powered as either 24V AC or via the phase shift AC
capacitor. The relays are operated by the opamp and either driver transistor.
The opamp inputs are feed via RF filtering components with the bridge output,
comparing the slider voltage of the controller and rotator pots. The cal
IN USE
Although a very small rototor, I have used an enoumous 55el 23cms TONNA beam
5.5m long on one at 10m for many years. But to keep bearing strain down I use
only a 3cm x 30cm long stub pole.
Why Don't U send an interesting Bul?
73 de John G8MNY @ GB7CIP
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