John,
I've used a handfull of #31 split bead ferrites from DX engineering on the wire
harness to the COP spark plugs.
Second I use the Clear Speech DSP speaker, now available from Heil Sound
I reckon the Clear Speech unit is more effective than the DSP unit in the Icom
706MKIIG.
cheers, Dick
----- Original Message -----
From: Japerlick@aol.com
To: pa3duv@planet.nl
Sent: Thursday, February 10, 2005 10:51 PM
Subject: Re: [Amps] 3 dB mobile power increase
Dick
Thanks for the info. Say, WHAT DID you do to kill noise from the ignition
into the radio? Mine is a solid S-9 with the engine running...kind of makes it
difficult to communicate! I've tried improving grounds (the antenna is very
well grounded) and I have a separate auto battery in the trunk with the radio
(remoted to the car). I've totally disconnected the battery from the car's DC
electrical system and the noise still persists...so it is not coming in via the
DC lines. And it is definitely ignition noise.
John
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