[aprssig] HT-220 HT's for APRS
Brian B. Riley
brianbr at mac.com
Thu Jul 19 23:39:27 EDT 2007
I had a Midland 13-509 (220 MHz) that was the backbone link on a very
busy packet node literally wear the arms off the relay the amazing
thing was that was even working for the last week before it finally
failed.
---
cheers ... 73 de brian riley, n1bq , underhill center, vermont
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On Jul 19, 2007, at 10:35 PM, Doug Younker wrote:
>
>
> Stephen H. Smith wrote:
>
>>>
>> Why would it matter if the unit uses mechanical relays or
>> electronic switching for PTT?
>
>
> As long as the switching time is manageable, I don't think it makes
> a difference. Azdens must have been a good buy when the old boys
> who pioneered packet radio in this part of Kansas built their
> network, because several where put into packet service 19-20 or so
> years ago. They use T/R relays and at least one in now in APRS
> service, relay still clicking it's little ole' heart out. At a more
> relaxed pace now, since it no longer passes PBBS traffic. :)
> Doug, N0LKK
>
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