[FoxHunt] FoxHunt Digest, Vol 83, Issue 5

Mon Apr 3 19:55:56 EDT 2023

I still get emails whenever anyone posts to the list, which I have not 
seen since 2020.  *I* have not been doing much with DF since then.

On 4/3/23 00:19, foxhunt-request at mailman.qth.net wrote:
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> Today's Topics:
>
>     1. Re: Test (Tony)
>     2. Re: Test (Jim Korenz)
>     3. Re: Test (William Harris)
>     4. Activity (Joe)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 28 Apr 2020 18:46:54 -0500
> From: Tony<x3301 at hotmail.com>
> To:foxhunt at mailman.qth.net
> Subject: Re: [FoxHunt] Test
> Message-ID:
> 	<CH2PR22MB190967ABC509080B73B328F7B6AC0 at CH2PR22MB1909.namprd22.prod.outlook.com>
> 	
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Hi,
>
> That's what the switched capacitor filter does, integrates. A fast
> attack slow decay AGC will get the strong signal peaks when driving, are
> most likely to be the right direction, excluding buildings.
>
> Tony
>
> AA9CC
>
> On 4/28/20 6:50 AM, Bernie Hunt wrote:
>> There is one thing that makes it hopeful, by capturing the readings and storing them a trend may be found. I've always wondered if in those time when a Doppler seems random in its readings if there was a pattern hidden underneath the multipath. It will be interesting if the SDR DF can do that. It doesn't solve and age old problem of if you can't hear it you can't hunt it.
>>
>> Bernie
>> K2YO
>>
>> -----Original Message-----
>> From:foxhunt-bounces at mailman.qth.net  [mailto:foxhunt-bounces at mailman.qth.net] On Behalf Of Tony
>> Sent: Tuesday, April 28, 2020 7:32 AM
>> To:foxhunt at mailman.qth.net
>> Subject: Re: [FoxHunt] Test
>>
>> HI,
>>
>> We are having foxhunts every weekend. Let us know how the SDR DF works, I suspect its like the old Doppler units.
>>
>> Tony
>>
>> AA9CC
>>
>> On 4/27/20 2:58 PM, Mike (KA5CVH) Urich wrote:
>>> On Mon, Apr 27, 2020 at 2:34 PM Bryant<skysho at comcast.net>  wrote:
>>>
>>>> Anybody have some good suggestions to get folks motivated?  Last year I spent the bucks on the Kerberos SDR and have yet to take it out on a hunt.  Anybody else on this list using the device?
>>> I have the sniffer ...http://www.foxhunt.com.au/  and a 3L tape
>>> measure yagi for VHF.
>>>
>> ______________________________________________________________
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>
> ------------------------------
>
> Message: 2
> Date: Wed, 29 Apr 2020 01:07:48 +0000 (UTC)
> From: Jim Korenz<n8pxw at yahoo.com>
> To: Radio Direction Finding<foxhunt at mailman.qth.net>
> Subject: Re: [FoxHunt] Test
> Message-ID:<88528177.1300709.1588122468962 at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
>   Averaging does help to some extent, but putting the bearings in bins, and displayingthe bin with the most hits, does a lot better. It doesn't take much memory, just 16 or32 bins for the direction. Experience shows that mobile Doppler bearings are aboutplus/minus 5 deg, so you don't gain anything over 36 bearings.?? JimK N8PXW
>
>
>
>      On Tuesday, April 28, 2020, 7:47:17 PM EDT, Tony<x3301 at hotmail.com>  wrote:
>   
>   Hi,
>
> That's what the switched capacitor filter does, integrates. A fast
> attack slow decay AGC will get the strong signal peaks when driving, are
> most likely to be the right direction, excluding buildings.
>
> Tony
>
> AA9CC
>
> On 4/28/20 6:50 AM, Bernie Hunt wrote:
>> There is one thing that makes it hopeful, by capturing the readings and storing them a trend may be found. I've always wondered if in those time when a Doppler seems random in its readings if there was a pattern hidden underneath the multipath. It will be interesting if the SDR DF can do that. It doesn't solve and age old problem of if you can't hear it you can't hunt it.
>>
>> Bernie
>> K2YO
>>
>> -----Original Message-----
>> From:foxhunt-bounces at mailman.qth.net  [mailto:foxhunt-bounces at mailman.qth.net] On Behalf Of Tony
>> Sent: Tuesday, April 28, 2020 7:32 AM
>> To:foxhunt at mailman.qth.net
>> Subject: Re: [FoxHunt] Test
>>
>> HI,
>>
>> We are having foxhunts every weekend. Let us know how the SDR DF works, I suspect its like the old Doppler units.
>>
>> Tony
>>
>> AA9CC
>>
>> On 4/27/20 2:58 PM, Mike (KA5CVH) Urich wrote:
>>> On Mon, Apr 27, 2020 at 2:34 PM Bryant<skysho at comcast.net>  wrote:
>>>
>>>> Anybody have some good suggestions to get folks motivated?? Last year I spent the bucks on the Kerberos SDR and have yet to take it out on a hunt.? Anybody else on this list using the device?
>>> I have the sniffer ...http://www.foxhunt.com.au/  and a 3L tape
>>> measure yagi for VHF.
>>>
>> ______________________________________________________________
>> FoxHunt mailing list
>> Home:http://mailman.qth.net/mailman/listinfo/foxhunt
>> Help:http://mailman.qth.net/mmfaq.htm
>> Post:mailto:FoxHunt at mailman.qth.net
>>
>> This list hosted by:http://www.qsl.net
>> Please help support this email list:http://www.qsl.net/donate.html
>> ______________________________________________________________
>> FoxHunt mailing list
>> Home:http://mailman.qth.net/mailman/listinfo/foxhunt
>> Help:http://mailman.qth.net/mmfaq.htm
>> Post:mailto:FoxHunt at mailman.qth.net
>>
>> This list hosted by:http://www.qsl.net
>> Please help support this email list:http://www.qsl.net/donate.html
> ______________________________________________________________
> FoxHunt mailing list
> Home:http://mailman.qth.net/mailman/listinfo/foxhunt
> Help:http://mailman.qth.net/mmfaq.htm
> Post:mailto:FoxHunt at mailman.qth.net
>
> This list hosted by:http://www.qsl.net
> Please help support this email list:http://www.qsl.net/donate.html
>    
>
> ------------------------------
>
> Message: 3
> Date: Wed, 13 May 2020 22:17:11 -0700
> From: William Harris<w7kxb1 at gmail.com>
> To: Jim Korenz<n8pxw at yahoo.com>,	Radio Direction Finding
> 	<foxhunt at mailman.qth.net>
> Subject: Re: [FoxHunt] Test
> Message-ID:
> 	<CADJ-aJyz2NEqLsQevxgQzF9R=odwT-2i07ayfH9avDE-LHfGkA at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Any info on the 2020 20 meter hunts?  Where do they now post weekly results
> for 40 and 80m?
> Later
> de.w7kxb   ,   ,
>
>
> On Tue, Apr 28, 2020 at 6:08 PM Jim Korenz via FoxHunt <
> foxhunt at mailman.qth.net> wrote:
>
>>   Averaging does help to some extent, but putting the bearings in bins, and
>> displayingthe bin with the most hits, does a lot better. It doesn't take
>> much memory, just 16 or32 bins for the direction. Experience shows that
>> mobile Doppler bearings are aboutplus/minus 5 deg, so you don't gain
>> anything over 36 bearings.   JimK N8PXW
>>
>>
>>
>>      On Tuesday, April 28, 2020, 7:47:17 PM EDT, Tony<x3301 at hotmail.com>
>> wrote:
>>
>>   Hi,
>>
>> That's what the switched capacitor filter does, integrates. A fast
>> attack slow decay AGC will get the strong signal peaks when driving, are
>> most likely to be the right direction, excluding buildings.
>>
>> Tony
>>
>> AA9CC
>>
>> On 4/28/20 6:50 AM, Bernie Hunt wrote:
>>> There is one thing that makes it hopeful, by capturing the readings and
>> storing them a trend may be found. I've always wondered if in those time
>> when a Doppler seems random in its readings if there was a pattern hidden
>> underneath the multipath. It will be interesting if the SDR DF can do that.
>> It doesn't solve and age old problem of if you can't hear it you can't hunt
>> it.
>>> Bernie
>>> K2YO
>>>
>>> -----Original Message-----
>>> From:foxhunt-bounces at mailman.qth.net  [mailto:
>> foxhunt-bounces at mailman.qth.net] On Behalf Of Tony
>>> Sent: Tuesday, April 28, 2020 7:32 AM
>>> To:foxhunt at mailman.qth.net
>>> Subject: Re: [FoxHunt] Test
>>>
>>> HI,
>>>
>>> We are having foxhunts every weekend. Let us know how the SDR DF works,
>> I suspect its like the old Doppler units.
>>> Tony
>>>
>>> AA9CC
>>>
>>> On 4/27/20 2:58 PM, Mike (KA5CVH) Urich wrote:
>>>> On Mon, Apr 27, 2020 at 2:34 PM Bryant<skysho at comcast.net>  wrote:
>>>>
>>>>> Anybody have some good suggestions to get folks motivated?  Last year
>> I spent the bucks on the Kerberos SDR and have yet to take it out on a
>> hunt.  Anybody else on this list using the device?
>>>> I have the sniffer ...http://www.foxhunt.com.au/  and a 3L tape
>>>> measure yagi for VHF.
>>>>
>>> ______________________________________________________________
>>> FoxHunt mailing list
>>> Home:http://mailman.qth.net/mailman/listinfo/foxhunt
>>> Help:http://mailman.qth.net/mmfaq.htm
>>> Post:mailto:FoxHunt at mailman.qth.net
>>>
>>> This list hosted by:http://www.qsl.net
>>> Please help support this email list:http://www.qsl.net/donate.html
>>> ______________________________________________________________
>>> FoxHunt mailing list
>>> Home:http://mailman.qth.net/mailman/listinfo/foxhunt
>>> Help:http://mailman.qth.net/mmfaq.htm
>>> Post:mailto:FoxHunt at mailman.qth.net
>>>
>>> This list hosted by:http://www.qsl.net
>>> Please help support this email list:http://www.qsl.net/donate.html
>> ______________________________________________________________
>> FoxHunt mailing list
>> Home:http://mailman.qth.net/mailman/listinfo/foxhunt
>> Help:http://mailman.qth.net/mmfaq.htm
>> Post:mailto:FoxHunt at mailman.qth.net
>>
>> This list hosted by:http://www.qsl.net
>> Please help support this email list:http://www.qsl.net/donate.html
>>
>> ______________________________________________________________
>> FoxHunt mailing list
>> Home:http://mailman.qth.net/mailman/listinfo/foxhunt
>> Help:http://mailman.qth.net/mmfaq.htm
>> Post:mailto:FoxHunt at mailman.qth.net
>>
>> This list hosted by:http://www.qsl.net
>> Please help support this email list:http://www.qsl.net/donate.html
>
> ------------------------------
>
> Message: 4
> Date: Sun, 2 Apr 2023 19:19:08 -0500
> From: Joe<nss at mwt.net>
> To:foxhunt at mailman.qth.net
> Subject: [FoxHunt] Activity
> Message-ID:<7a0ec9c7-76fa-7ba7-6c36-3c7d10af36f2 at mwt.net>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Is anyone here at all anymore?
>
> Joe WB9SBD
>
> ------------------------------
>
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>
> End of FoxHunt Digest, Vol 83, Issue 5
> **************************************