[ML-Hams] Latest Donation

[Bruce Campbell]

There are some dirt cheep duel band radios entering onto the market from
Chinese manufacturers. Why not just take up a collection and buy one. Even
if we get these old radios to work, they will be a pain to use on a regular
bases. We can use them for projects.



On Sat, Oct 8, 2016 at 9:26 PM, Bruce Campbell <phillybruce at gmail.com>
wrote:

> I briefly went by to look at then tonight (Saturday). It looked like
> someone had already tried to get them working. The TM-2520A didn't have any
> audio as I assume someone had already determined.. I found out that tone
> squelch was set and I think I turned it off. Still no audio though. One of
> them had been opened up. I didn't mess with it.
> I will get my dummy load and power meter and head over tomorrow. I I will
> get the manuals from the web and (if I can find someone to let me in) see
> if I can get a squeak out of something.
>
> On Sun, Oct 2, 2016 at 9:42 AM, Bruce Campbell <phillybruce at gmail.com>
> wrote:
>
>> Leaving on vacation is unfortunate!? Enjoy your time off.
>>
>> Who else can I work with while you are gone? If I could get in I could
>> set it up but it would better for the group if we did it together.
>>
>> Bruce
>> KG4HLZ
>>
>> On Sun, Oct 2, 2016 at 9:09 AM, Jeff Cotten <omegix at gmail.com> wrote:
>>
>>>
>>> I think so!  I'll try to look for it next time I'm over there :)
>>>
>>> I'm unfortunately leaving next week for a 2 week vacation, so it will be
>>> a hot minute before I can interact with the equipment again :)
>>>
>>> On Sat, Oct 1, 2016 at 8:33 PM, Bruce Campbell <phillybruce at gmail.com>
>>> wrote:
>>>
>>>> Jeff,
>>>>
>>>> Have you seen anything that looks like this around the shack?
>>>> http://www.geocities.jp/tnc_gallery/mfj70b_1.jpg
>>>>
>>>>
>>>> On Sat, Oct 1, 2016 at 8:23 PM, Bruce Campbell <phillybruce at gmail.com>
>>>> wrote:
>>>>
>>>>> There was an AX-25 TNC around there at one time. You would have all
>>>>> that you need for a packet station.
>>>>>
>>>>> On Sat, Oct 1, 2016 at 8:05 PM, Kris Kirby <kris at catonic.us> wrote:
>>>>>
>>>>>> On Sat, 1 Oct 2016, Bruce Campbell wrote:
>>>>>> > do you know there history?
>>>>>>
>>>>>> WA4DXP-1 was HSVN on 145.01, WA4DXP-5 was HSVN on 145.65, both Alinco
>>>>>> DR-1200s; I believe WA4DXP-6 was 433.8 MHz using an RCA radio. Or
>>>>>> WA4DXP-6 was 145.65, and WA4DXP-5 was something else...
>>>>>>
>>>>>> K4IQU (Dave Light) was the callsign of 146.94/34 before it had the
>>>>>> N4HSV
>>>>>> callsign on it. The BBS (K4BFT/K4BFT-1) had the club call as well.
>>>>>>
>>>>>> 144.97, 145.01, 145.05, and 145.09 were all used for 1200 bps AX.25
>>>>>> packet radio, along with 145.65. 147.565 was used for 9600 bps packet.
>>>>>> 433.8 was 2400 bps. The maximum common rate that fits in a voice
>>>>>> channel
>>>>>> without 'tricks' was 2400 bps. Motorola liked 3,600 Hz using MSK for
>>>>>> trunking. 9600 bps required access to the modulator and discriminator
>>>>>> because 9.6KHz was outside of the audio system's 300 - 4 KHz
>>>>>> bandwidth.
>>>>>>
>>>>>> 1200 bps was the shipping data rate of the TAPR TNC2; 2400 bps and
>>>>>> 9600
>>>>>> bps required modems be installed on a 20-pin connector in the TNC2.
>>>>>> MFJ
>>>>>> must have sold 10,000 of those TNC2 clones.
>>>>>>
>>>>>> I refer to AX.25 1200-9600 bps as "802.11 dot slow."
>>>>>>
>>>>>> But then again, I still have my KPC-9612.
>>>>>>
>>>>>> --
>>>>>> Kris Kirby, KE4AHR
>>>>>> Disinformation Architect, Systems Mangler, & Network Mismanager
>>>>>>
>>>>>> _______________________________________________
>>>>>> This is the hams mailing list.
>>>>>> This list is for amateur radio discussion.
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>>>>>> hams-leave at lists.makerslocal.org.
>>>>>>
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
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>>>> hams-leave at lists.makerslocal.org.
>>>>
>>>
>>>
>>> _______________________________________________
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>>> This list is for amateur radio discussion.
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>>>
>>
>>
>
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