I worked Mt Evans here in Colorado one day as a SOTA activator. I was on
20m. It was painfully clear when a hybrid/ev came into the parking lot.
The band was drowned out by the vehicle. Motor cycles were a problem as
well. Every ham I know who has a hybrid/ev says the vehicle is useless
on HF unless the vehicle is turned off completely. I understand no
hybrid/ev has an AM radio for this reason.
Don, N0YE
On 5/14/2019 8:46 AM, Jim via RFI wrote:
My observations on a 2015 Prius V:
Mostly from 40 and 20 meter mobile operation: some RFI birdies, etc., with the
car on but not moving. Moderate RFI when moving but not pushing the car. Severe
RFI (ignition noise, not necessarily hybrid system noise) when under heavy
acceleration or trying to maintain highway speeds going up hills.
I have had good success operating the Florida QSO Party mobile from the Prius,
mostly on flat road at moderate speeds.
73 - Jim K8MR
On May 14, 2019, at 3:01 AM, Roger (K8RI) <k8ri@rogerhalstead.com> wrote:
My wife has one of the early Prius hybrids and no problems so far. No noise on
VHF, or UHF. I've never operated HF from it, But I've never heard it in the
driveway, in the garage under the antennas.In the garage it would have been
about 75 feet from the one 75/40 center fed, half wave sloper and 100to 120
feet from the tribander.
73, Roger (K8RI)
On 5/9/2019 11:48 AM, KD7JYK DM09 wrote:
"No hybrid, but a 2014 RAV4 and it is the quietest RFI free vehicle that I have ever
owned."
The problems with the hybrids, at least many in the past, has been the exact
opposite. I could hear a Prius without ever seeing one, up to 1/4 mile away.
The newer ones may be quieter, and non-hybrid, irrelevant.
I suggest taking same radios with you, and sniffing around. I bring in a
mixture of LF, MF, HF, VHF, and UHF, and poke around each vehicle when running,
with each radio, across many, many hundreds of MHz, before taking into
consideration.
I have a new (to me) device that converts energy from DC to 12 GHz, and
converts to audio, to sniff around with.
Kurt
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Roger (K8RI)
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