[1000mp] Antenna relays

[Tod -ID]

Thomas:

My observations indicate the problem [now in temporary remission] was
entirely associated with the RX relays and not the RX relays. That
corresponds to your observation of the problem at RL1002 and RL1005.  

I had in mind ordering some of the relays and having them on hand when
needed.

I have heard folks suggest that the contact problem may be 'fixed' by
running a small [micro amp] current through the relays which apparently does
something to keep the contact surfaces 'electrically clean'. 

I have not considered electrostatic effects. I will keep that in mind. Thank
you for your comment.


73, Tod, K0TO

> -----Original Message-----
> From: 1000mp-bounces at mailman.qth.net 
> [mailto:1000mp-bounces at mailman.qth.net] On Behalf Of Thomas Otterbein
> Sent: Saturday, December 20, 2008 3:37 AM
> To: 'All about Yaesu 1000mp'
> Subject: RE: [1000mp] Antenna relays
> 
> Hi all....
> 
> I think this is one of the weakest point of the FT100MP 
> (muting signal).
> 
> In my case it was two times always faulty relays, RL1002, 
> RL1005 at the RF-Unit.
> It was never the antenna relays  at the RF-output
> ANT1 and ANT2. 
> 
> I discussed this matter also with a technican at the HAM 
> RADIO in Friedrichshafen. 
> They didn´t gave me detailed information but told me, that 
> this defects "sometimes"  occure. 
> 
> It seems that the relay are to sensitive for static voltages.
> 
> I had this problem twice and since I´m always disconnect the 
> antenna when the rig is not in operation, I have since years 
> no problem at all.
> 
> 73!
> Thomas
> DG8FBV
> ---
> www.dg8fbv.de
> 
>