[OZAPRS] 40m good but wierd

Sat Apr 4 13:28:12 EST 2009

David,

It is used elsewhere as you say, but not universally. It's another of 
those anomalies with band plans, when a segment being used in one region 
for a particular mode can impact on a different mode in another region. 
Mother Nature does a sterling job of preventing inter-region 
interference, isn't she wonderful :-)

Ray vk2tv

David and Justine Olsen wrote:
> Ray
>
>
> Then I was wrong and now you have corrected me :-)
>
> I thought we were using a frequency used elsewhere in the world, that 
> is all.
>
>
> David
>
>
> On 4 Apr 2009, at 12:11, Ray Wells wrote:
>
>> David,
>>
>> I don't understand your question. If you're referring to aprs, I'm 
>> not sure that it's internationally agreed. 7036.5 falls in the narrow 
>> mode segment of the band in Region 1. Region 3 has a different band 
>> plan and I've not checked Region 2 for a while so can't recall what 
>> it told me.
>>
>> But how does that affect me, not running aprs on 40m?
>>
>> Ray vk2tv
>>
>> Ray vk2tv
>>
>> David and Justine Olsen wrote:
>>> Ray
>>>
>>> Please correct me if I am wrong, but aren't we all currently on (or 
>>> some of us very near) the internationally agreed 40m freq?
>>>
>>> David
>>>
>>>
>>>
>>> On 4 Apr 2009, at 06:53, Ray Wells wrote:
>>>
>>>> Philip,
>>>>
>>>> VK2TV (Kempsey), VK2AAB (Sydney) and VK2SLM (Casino) have been 
>>>> forwarding on 40m for up to 8 years. We used to be marginally lower 
>>>> in frequency than we are now. See two paragraphs down. The 
>>>> frequency had originally been occupied for many years by ex-OTC 
>>>> personnel and they invited me there. They have since moved elsewhere.
>>>>
>>>> My dial reading is 7035.33 (USB) which places my tones at 7037.355 
>>>> and 7037.555 (calculated, not measured). I use a Baycom USCC> 4 
>>>> card on 40m and it uses the 2025/2225 tone pair. The radio is the 
>>>> TS430 (for now) and is, in combination with the half-power plug 
>>>> being fitted and not being driven to the hilt (no ALC), producing 40W.
>>>>
>>>> You may recall a previous posting when I mentioned I had moved the 
>>>> crystal in the Tracker Lynx (the radio that just died!) as high in 
>>>> frequency as it would go to move away from vk4 stations trying to 
>>>> work weak PSK signals from Europe in the Region 1 narrow-band 
>>>> segment of the band. I also offered to move closer to 7.040 if such 
>>>> a move was deemed necessary. Such a move would indeed be easier 
>>>> right now with the TS430 in service on 40m.
>>>>
>>>> I need the feelings of those operating 40m aprs and, I need to 
>>>> consult my forwarding partners and users, if a move is considered 
>>>> in the interest of aprs operations.
>>>>
>>>> Ray vk2tv
>>>>
>>>> Phillip wrote:
>>>>> Hi Tony and All,
>>>>>
>>>>>                            Yes  40 mtrs is alive but again many 
>>>>> touch on the
>>>>> few Hz High / Low issue and we need a rock solid known
>>>>> net station to over come this .
>>>>>
>>>>>
>>>>>
>>>>> I had bleed over last night from Ray VK2TV / VK2AAB and another 
>>>>> from 7034
>>>>> USB doing packet forwarding I put this down to
>>>>> some weird condx it lasted about 6 minutes I chased them and wow 
>>>>> great copy.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> 73 Phillip
>>>>>
>>>>> ZL2TZE
>>>>>
>>>>>
>>>>>
>>>>> -------Original Message-------
>>>>>
>>>>>
>>>>> From: Tony Hunt
>>>>>
>>>>> Date: 04/03/09 22:28:40
>>>>>
>>>>> To: OZ-APRS Mial-list
>>>>>
>>>>> Subject: [OZAPRS] 40m good but wierd
>>>>>
>>>>>
>>>>> Well in about the last 24 hours 40m seems to have proved good. As 
>>>>> opposed to
>>>>>
>>>>> about 5-6 days on 20m this last week. 40m seems better now than it 
>>>>> was this
>>>>>
>>>>> time last week. This is possible becuase my noise levels seem to have
>>>>>
>>>>> dropped also.
>>>>>
>>>>>
>>>>> Within a couple of hours I heard about 4 stations regularly last 
>>>>> night. Ive
>>>>>
>>>>> also noticed some RTTY spot on our channel . Maybee some of you 
>>>>> are playing
>>>>>
>>>>> sound cards with RTTY as well.
>>>>>
>>>>>
>>>>> So far Ive heard on AX25 APRS in no particular order
>>>>>
>>>>> VK2KCM-4
>>>>>
>>>>> VK7HSE-2
>>>>>
>>>>> VK5EX-4
>>>>>
>>>>> VK2XGJ-15
>>>>>
>>>>> ZL3RX
>>>>>
>>>>> VK3JFK-5
>>>>>
>>>>>
>>>>> Interestingly nothing from VK4 and I notice that they are hearing 
>>>>> stuff that
>>>>>
>>>>> Ive never seen yet also like VK2SLM possibly because hes 400 Hz 
>>>>> High by the
>>>>>
>>>>> looks. Its almost like we are on different frequencies or planets 
>>>>> to the
>>>>>
>>>>> VK4s etc ..
>>>>>
>>>>>
>>>>> But alas we must be on the same frequencies because your seeing 
>>>>> the same
>>>>>
>>>>> stuff I am seeing from VK2 and ZL arent you ?? Its wierd because I 
>>>>> am seeing
>>>>>
>>>>> ZL3RX but VK4JRC was seeing ZL3RX-4 .. Yet VK4JRC is seing me .. 
>>>>> Odd stuff.
>>>>>
>>>>>
>>>>>
>>>>> Tony Hunt  VK5AH
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>>
>>>>> Ozaprs mailing list
>>>>>
>>>>> Ozaprs at aprs.net.au
>>>>>
>>>>> http://aprs.net.au/mailman/listinfo/ozaprs
>>>>>   
>>>>> ------------------------------------------------------------------------ 
>>>>>
>>>>>
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>>>>
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