Title: Message
|
I'd look at the comp line on the ICOM and
see if it's doing anything strange when PTT drops. You'll probably need a
DSO or something similiar to capture it since it's such a short duration.
While you're at it, monitor the 10V line as well.
Is this a converted mobile or a
station?
--- Jeff
--------------------------------------------
Jeff DePolo WN3A
- [EMAIL PROTECTED]
Broadcast and Communications
Consultant
Here is one for you guru's and BMOC problem solvers. Must admit there are
a lot of good ones in this group. A 2 meter repeater 15 miles away using
a Mastr2 PLL exciter emits a carrier drop pulse of about 500 ms in
duration on a frequency 225 khz down from the repeaters xmit freq.
Unfortunately this pulse is on the output of another repeater I continuously
monitor. The repeater trustee is very knowledgeable and cooperative and is
attempting to solve this problem. He did say the PLL is not quite 5
volts but otherwise seems to work well. The drop pulse on
COR is definitely coming from the exciter and can be observed on a SA
with PA installed and removed. It was replaced with another exciter
and the second exciter is doing exactly the same thing.
Gary K2UQ
--
No virus found in this incoming message.
Checked by AVG
Anti-Virus.
Version: 7.0.338 / Virus Database: 267.9.4/57 - Release Date:
7/22/2005
YAHOO! GROUPS LINKS
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.338 / Virus Database: 267.9.4/57 - Release Date: 7/22/2005
|
- RE: [Repeater-Builder] carrier drop pulse Jeff DePolo WN3A
-
