[R-390] not yet

[Bob Camp]

Hi

There is a error in the previous post.

The BNC connector you swap the cables over to is the one that is 
normally the IF output jack on the back of the radio. The whip antenna 
goes in through a C connector. The Navy mod moves the  balanced input 
over to the C connector rather than the BNC. Sorry about that!

	Bob Camp
	KB8TQ


On Aug 7, 2004, at 11:04 AM, Bob Camp wrote:

> Hi
>
> Sometimes the process of coming up with a radio takes a while. This is 
> especially true around the opening days of deer season or when it gets 
> real hot in the shop in the middle of summer ....
>
> If the radio is coming from Fair then they very definitely run a pull 
> one and check it routine. The first  check is to see if they can at 
> least hear something on some band at each of the filter settings. Next 
> is a quick check of the BFO and maybe the noise limiter.  If it makes 
> it past that they then try to get a radio with both the AM broadcast 
> band and a couple of the HF bands working. Last time they explained it 
> to me it sounded like the tech had a certain amount of discretion 
> about what did and did not constitute a working radio. The good news 
> is that if they mess up you can get them to make it right without much 
> hassle at all.
>
> There are different opinions on what to do about the RF connectors on 
> the R-390. As it came stock from the factory the BNC antenna connector 
> goes to the whip antenna input on the RF deck. The balanced antenna 
> connector (an IBM LAN connector) goes to the main antenna input on the 
> RF deck.
>
> Things that have been known to work:
>
> 1) simply stuff a piece of wire into one side the twin lead connector 
> and ground the other side of the connector.
> 2) modify the cables from the back panel to the RF deck so the BNC 
> goes to the main antenna. This is a Navy mod if I remember right.
> 3) The LAN connectors are < $2, so buy the right connector and wire it 
> up to the right cable (twin conductor coax - weird ...).
> 4) Get an adapter from the LAN connector to a SO-239. This is 
> certainly the best looking solution.
> 5) Make a 50 ohm to 120 ohm balun, put it in a box, mount it on the 
> back of the radio, cable it with the right connectors .... ugg...
> 6) Just use the whip antenna input (not as good for RF overload)
>
> There are probably other things that also work, but you get the 
> general idea. On a radio fresh out of the box I would just use option 
> one above and get playing with the new toy.
>
> 	Take Care!
>
> 		Bob Camp
> 		KB8TQ
>
>
>
> On Aug 7, 2004, at 6:10 AM, Charles B wrote:
>
>> Hi all,
>>
>> I had hoped my R-390A would have been setting here in front of me by 
>> now, but I guess there will be more time elapse before that happens?  
>> I ordered a Rebuild R-390A which was scheduled to be shipped within 
>> four weeks.  That was over 4 weeks ago.  I am wondering if the vendor 
>> might have run out of spare parts?
>>
>> I already got a spot cleared where it will set when the R-390A 
>> arrives.  I have been wondering about the antenna connections.  Will 
>> I be able to hook up ordinary connectors or does the R-390A require 
>> something different?
>>
>> Tnx
>>
>> Chuck
>>
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