[Mich VHF UHF Society] PSK-31 on 144 MHz?
Roger Cox
rgcox2 at gmail.com
Thu Feb 12 22:15:46 CST 2015
I ran JT65b with K9MRI and K9ZF last year. Of course Joe was extremely
loud here, but Dan was a bit of a challenge. I think that I need to
tear into my IC-746 and insulate the oscillator crystal like N0UK
recommends. Whenever the rig goes into transmit, the fan comes on and
cools down the crystal, shifting the frequency a bit. OK for normal
use, but not good for JT65 on 144 MHz.
http://www.chris.org/Modifications/IC-746-almost-free-tcxo.html
Paul Whatton in the JT65b-FSK441 Facebook group recommends a polystyrene
insulator cut for the crystal can inside dimension along with a crystal
heater. A bit more than I want to do.
http://www.kuhne-electronic.de/en/service/references/qh-40-a-installation-of-a-crystal-heater-into-a-icom-ic-746.html
Roger W8IO
On 2/12/2015 10:58 PM, kenmiller2 at charter.net wrote:
> I have the capability here and would enjoy doing some on 144 and 432
> myself.
> Ken N8CGY
> *From:* Tom Peasley <mailto:tntpeasley at att.net>
> *Sent:* Thursday, February 12, 2015 10:22 PM
> *To:* mivus at mivus.org <mailto:mivus at mivus.org>
> *Subject:* Re: [Mich VHF UHF Society] PSK-31 on 144 MHz?
> WSPR or WSJT sound interesting. I am set up for both 144 band 432 but
> the ultra narrow band mode would be fun to try with relatively low
> power and just a loop for an antenna. I have done EME and SSB in the
> past but am not sure what the best interface and setup is and what
> would be needed between my rig (FT847) and the computer (HP I7 + 12 GB
> RAM).
> 73, -Tom WB8IIA
>
>
> On Thursday, February 12, 2015 9:27 PM, Roger Cox <rgcox2 at gmail.com>
> wrote:
>
>
> I tried WSPR on 144 MHz a couple of times with a ham in Canada, but
> neither of us heard anything. I suspect that our oscillators were not
> stable enough. Carol KP4MD in California uses WSPR on both 144 and 432
> with pretty good success, but I know she uses a very stable
> oscillator. I see her posts on Facebook quite a bit.
>
> Next time I'm in the shack, Dan, I'll look for you on the ON4KST site
> and we'll give it a try.
>
> 73 Roger W8IO
>
> On 2/12/2015 9:14 PM, C. Michael Long wrote:
>> I'd be willing to give it a go once I get an antenna in the air and
>> the cables/adapters for the computer to the rig. Probably sometime
>> late spring.
>> Heck, I'd like to try WSPR on VHF+, but I think I need a more stable
>> oscillator.
>> 73,
>> Mike W6RP
>> EN72AN
>> On Thu, Feb 12, 2015 at 8:26 PM, Dano <blown4.6 at gmail.com
>> <mailto:blown4.6 at gmail.com>> wrote:
>>
>> From the west coast I tried for years to get others to try
>> digital on 144mhz to no avail. Other than the EME and meteor
>> scatter guys everyone else always has some excuse for why they
>> don't. Here in MI I've had a little more success at getting
>> people to try digital, but for the most part it is just like my
>> experiences on the west coast, and that is they are either not
>> interested and indifferent or irrationally hostile to the idea.
>> I'll participate if you can get it started but I'm done, sorry to
>> say, with trying to actively recruit people to experiment with
>> digital modes.
>>
>> If anyone on the list wants to experiment you can find me on the
>> KST 6m and 2m chat most of the time and I'll be happy to oblige.
>>
>>
>> 73,
>>
>> Dan KF6A...
>> On Thu, Feb 12, 2015 at 8:11 PM, Roger Cox <rgcox2 at gmail.com
>> <mailto:rgcox2 at gmail.com>> wrote:
>>
>> Is there anyone in or near Michigan that would like to try
>> PSK-31 on 144 MHz? The guys in Texas are giving it a try.
>> Might be something interesting to do until the propagation
>> improves. Here is info on what they are doing in Texas.
>>
>> 73 Roger W8IO
>> Spring Lake, MI EN63vc
>>
>> --------------------
>>
>> We’ll be at it again; Saturday Morning, 2-meter PSK-31 round
>> table at 8:00 a.m. central time. Frequency, 144.150, USB.
>> There are a handful of us in the east Texas area, EM22 that
>> will be on the air calling CQ on BPSK-31 from 8:00 a.m. until
>> around 9:00 a.m.
>> We have made contacts with stations in the Dallas and Houston
>> Areas using 20 to 25 watts.
>> For the most part we are all using horizontally polarized
>> antennas, but if you only have a vertical, go ahead and give
>> a listen and or a call.
>> We will hijack the Rusk County Amateur Radio Club’s chat page
>> again to coordinate with each other.
>> Go here, http://www.ruskcountyarc.com/ then click on the NET
>> tab and sign in as a guest with your call sign, followed by
>> your name.
>> Like this: KN5G-Keith
>> We eventually migrate to 144.200 and try some USB voice
>> contacts, so keep that in mind as we get closer to 9:00 a.m.
>>
>> 73,
>> Keith
>> KN5G – EM22nd
>>
>>
>>
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