If the rig is truly dead, do you have the filters in the correct slots?
73
Jim W7RY
--------------------------------------------------
From: "Joe Subich, W4TV" <lists@subich.com>
Sent: Saturday, September 25, 2010 8:00 PM
To: <rtty@contesting.com>
Subject: Re: [RTTY] INRAD filter question
>
> > Okay, so you think if I adjust my IF shift it will help?
>
> If the IF shift has enough range it will work. Find a "dead"
> place on the band, select the narrow filers and turn the IF
> shift one way or the other to the stops and see if you hear
> noise come up.
>
> 73,
>
> ... Joe, W4TV
>
> On 9/25/2010 10:39 PM, David VE3VID wrote:
>>
>> Okay, so you think if I adjust my IF shift it will help?
>>
>>
>>
>> When I click either filter in its like a dead band as I tune along.
>> Like a 60db attenuator is on.
>>
>>
>>
>>
>>
>>
>>
>>
>>> From: w7ry@inbox.com
>>> To: ve3vid@hotmail.com; rtty@contesting.com
>>> Subject: Re: [RTTY] INRAD filter question
>>> Date: Sat, 25 Sep 2010 19:14:30 -0700
>>>
>>> you can probably use the BPF and IF shift to center LSB into the filters
>>> passband. Then you will have to use 2125/2295 for tones.
>>>
>>> 73
>>> Jim w7RY
>>>
>>>
>>> --------------------------------------------------
>>> From: "David VE3VID"<ve3vid@hotmail.com>
>>> Sent: Saturday, September 25, 2010 7:06 PM
>>> To: "RTTY contest group"<rtty@contesting.com>
>>> Subject: Re: [RTTY] INRAD filter question
>>>
>>>>
>>>>
>>>> The laptop is a Gateway running XP, N1MM, into a SignaLink USB outboard
>>>> sound card, into the ACC port on the TS-450s. I am neither for or
>>>> against true FSK, just the SignaLink allows me to do many other types
>>>> of
>>>> "sound card" digital modes such as PSK and Olivia.
>>>>
>>>>
>>>>
>>>> I was able to do RTTY no problem with the system before the 400hz
>>>> filters
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>> From: w7ry@inbox.com
>>>>> To: ve3vid@hotmail.com; rtty@contesting.com
>>>>> Date: Sat, 25 Sep 2010 18:52:16 -0700
>>>>> Subject: Re: [RTTY] INRAD filter question
>>>>>
>>>>> FSK is MUCH better than AFSK.... What are you using for a computer and
>>>>> software? I use windows XP and MMTTY with N1MM. Works just fine in FSK
>>>>> mode.
>>>>>
>>>>> Is there a particular reason you don't want to run FSK?
>>>>>
>>>>> 73
>>>>> Jim W7RY
>>>>>
>>>>>
>>>>> --------------------------------------------------
>>>>> From: "David VE3VID"<ve3vid@hotmail.com>
>>>>> Sent: Saturday, September 25, 2010 6:48 PM
>>>>> To: "RTTY contest group"<rtty@contesting.com>
>>>>> Subject: Re: [RTTY] INRAD filter question
>>>>>
>>>>>>
>>>>>> Wow. Well if thats the case it was an expensive waste of $300.
>>>>>>
>>>>>> However, why would the filters be unusable in AFSK(LSB)? Dont they
>>>>>> just
>>>>>> narrow the IF bandpass to 400hz?
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> From: w7why@frontier.com
>>>>>>> To: rtty@contesting.com
>>>>>>> Date: Sat, 25 Sep 2010 18:43:48 -0700
>>>>>>> Subject: Re: [RTTY] INRAD filter question
>>>>>>>
>>>>>>> Hi David
>>>>>>>
>>>>>>> I have the same setup as you--2 Inrad filters. They won't work in
>>>>>>> AFSK.
>>>>>>> You have to run FSK to use the narrow CW filters. 73
>>>>>>> Tom W7WHY
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> Ummmm.......nope. I had the rig in LSB (AFSK). And the tone pair as
>>>>>>>> set
>>>>>>>> by MMTTY is 2125/170
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> RTTY mailing list
>>>>>>> RTTY@contesting.com
>>>>>>> http://lists.contesting.com/mailman/listinfo/rtty
>>>>>>
>>>>>> _______________________________________________
>>>>>> RTTY mailing list
>>>>>> RTTY@contesting.com
>>>>>> http://lists.contesting.com/mailman/listinfo/rtty
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>> No virus found in this incoming message.
>>>>>> Checked by AVG - www.avg.com
>>>>>> Version: 9.0.856 / Virus Database: 271.1.1/3159 - Release Date:
>>>>>> 09/25/10
>>>>>> 10:45:00
>>>>>>
>>>>> _______________________________________________
>>>>> RTTY mailing list
>>>>> RTTY@contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/rtty
>>>>
>>>> _______________________________________________
>>>> RTTY mailing list
>>>> RTTY@contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/rtty
>>>>
>>>
>>>
>>>
>>>>
>>>> No virus found in this incoming message.
>>>> Checked by AVG - www.avg.com
>>>> Version: 9.0.856 / Virus Database: 271.1.1/3159 - Release Date:
>>>> 09/25/10
>>>> 10:45:00
>>>>
>>
>> _______________________________________________
>> RTTY mailing list
>> RTTY@contesting.com
>> http://lists.contesting.com/mailman/listinfo/rtty
>>
> _______________________________________________
> RTTY mailing list
> RTTY@contesting.com
> http://lists.contesting.com/mailman/listinfo/rtty
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.856 / Virus Database: 271.1.1/3159 - Release Date: 09/25/10
> 10:45:00
>
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty
|