[ARC5] RF Thermocouples

Tue, 18 Nov 2003 14:03:57 -0500

The relay has an RF current transfrmer in it so the meter is not electrically
connected to the Tx antenna lead. 60 Hz will NOT go through that transformer.

-John

Clarence M. Owens wrote:

> Thanks Jim,
>
> I have both a BC-442 and an ATA/ARA antenna relay.  I never have tried
> them.
>
> Does anybody know whether using a 60Hz AC current through the relay and a
> precision resistor and using an accurate AC voltmeter to measure the
> voltage drop would be a proper way to test the thermocouples?
>
> 73,
>
> Clare Owens  N2RJB
>
>
>                       Jim Hill
>                       <[email protected]>
>                       Sent by:
>                       arc5-admin@mailma
>                       n.qth.net         To: ARC-5 <[email protected]>
>                                         cc:
>
>                       11/18/2003 01:32
>                       PM
>                                           Subject:      [ARC5] RF Thermocouples
>
>
> Caterpillar: Confidential Green                 Retain Until: 12/18/2003
>                                                 Retention Category:  G90 -
>                                                 Information and Reports
>
> Maybe I'm a little off topic, but the latest catalog supplement of Fair
> Radio had unused RF thermocouples used in the BC442 antenna relay
> box.  Price is $5.00 each, or 3 for $10.00.  Part number is ARC-7499.  I
> just ordered some a few minutes ago, so have not seen them.  Salesman said
> they have a good stock, but there are plenty of orders.  I couldn't find
> them on their web site  www.fairradio.com, so phoned in the order.
> 73's Jim, w6ivw
>
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