[Yaesu] Quadra

[Roger (K8RI)]

On 8/17/2013 3:34 AM, Roger (K8RI) wrote:
> On 8/17/2013 2:10 AM, Adam Farson wrote:
>> Hi Roger,

Ah, the trials and tribulations of being a ham.

1st. I did have a grounding problem, but it wasn't the problem withe the 
rigs communicating.  As suggested by another (and I can't find the 
e-mail) that he'd had a similar problem with the sam rig and amp after a 
long term of service.  At his suggestion, I did a complete reset on the 
5000MP. When /I fired up the VL-1000 (Quadra) it was on 40 meters where 
it should be.

Unfortunately that grounding problem wiped out the filters at the 12 VDC 
input on my VNA. It smoked them!  I hope it's repairable as those things 
aren't cheap.  I foresee a phone call to Array Solutions tomorrow.

But on another note...The Quadra was putting out 500 watts on low, just 
like it should, BUT when I went to high to set the ALC it gave me a 
warning around 600 - 650 watts of a PA imbalance. Error #1003 which was 
not a good sign.  That's an imbalance of 50 watts or greater between 
sections.  It could be a transistor(s) or a combiner "module"?

So I'm looking for any "gotchas" when replacing the MRF-150s such as 
balancing or the need for a matched set, a good place to get them, and 
wondering if there might be a more rugged replacement for the MRF-150 
that wouldn't require rebuilding the RF section.  A service manual would 
help too<:-))

73

Roger (K8RI)

>>
>> Band Data 2 (which plugs into the FTDX-5000 TX REQ jack) is required
>> for the
>> F SET and TUNE functions, which both operate by keying the exciter. If
>> the
>> Quadra is not tracking the band selection on the FTDX-5000, there may
>> be a
>> common/ground return issue.
>
> That's what I've been thinking also and have spent the last two hours
> making ground cables.  I only have one working hand so its slowed me
> down a little<:-))
>
> 73
>
> Roger (K8RI)
>>
>> I use my Quadra with two Icom exciters. Band Data 2 is connected to ACC2
>> Pins 2/3. Band Data 1 is not used. PTT and ALC are connected via a stereo
>> RCA-ended cable.
>>
>> 73, Adam VA7OJ/AB4OJ
>>
>> -----Original Message-----
>> From: Yaesu [mailto:yaesu-bounces at contesting.com] On Behalf Of Roger
>> (K8RI)
>> Sent: 16-Aug-13 23:00
>> Cc: yaesu at contesting.com
>> Subject: Re: [Yaesu] Quadra
>>
>> On 8/17/2013 1:30 AM, Adam Farson wrote:
>>> Hi Roger,
>>>
>>> Do you have the Band Data 1, Band Data 2 (Control) and ALC cables
>>> connected
>> I'm not using the band data 2 for the auto tune, but otherwise as far
>> as I
>> can see it should work.
>> which is listed as not needed except for that function.
>>
>> I do need to check the grounding, but the auto band switching should work
>> just by changing bands.
>>
>> I had a Tokyo Hy Power 1.5 KFX and the band switching was flawless.
>>
>> 73
>>
>> Roger (K8RI)
>>
>>> per page 13 of the FTDX-5000 user manual? Band tracking, F SET and
>>> TUNE should all work if all the required interconnecting cables are in
>> place.
>>> 73, Adam VA7OJ/AB4OJ
>>>
>>> -----Original Message-----
>>> From: Yaesu [mailto:yaesu-bounces at contesting.com] On Behalf Of Roger
>>> (K8RI)
>>> Sent: 16-Aug-13 19:17
>>> To: yaesu at contesting.com
>>> Subject: [Yaesu] Quadra
>>>
>>> I picked up a quadra and an FT1000 MK-V.  I wanted the Quadra to go
>>> with my 5000MP and the 1000 as a back up.
>>>
>>> So far I think I have the proper cable in the proper places and menu
>>> 172 enabled on the 5000MP.
>>>
>>> When I turn on the 5000MP the Quadra powers up and goes through the
>>> self check and gives me Protection ON, Voltage NORMAL, Bias Check,
>>> Temp Normal, Maintenance Mode ON, Slave ON.
>>>
>>> My problem is I can't get the Quadra to change bands. It stays on 50
>>> MHz.  I can set it to manual, press F-Set and key the exciter (with
>>> low
>>> power)  It goes through its cycle, but the band still doesn't change.
>>>
>>> Any thoughts?
>>>
>>> I'm a complete novice where the Quadra is concerned and am sticking
>>> strictly to the procedures in the manual.
>>>
>>> 73
>>>
>>> Roger (K8RI)
>>>
>>> _______________________________________________
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>>> Yaesu at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/yaesu
>>>
>>>
>>>
>>
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