That isn't a good thing unless you don't think the antenna falling off the vehicle is a problem.
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Finally bought a Sirio 5000 to try...
- Thread starter The Jerk
- Start date
That isn't a good thing unless you don't think the antenna falling off the vehicle is a problem.
The whip isn't my concern, the elevated base is...tall truck, low branches.
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Sent from my SAMSUNG-SM-G730A using Tapatalk
Since the Sirio roof mount has a very small footprint with no real back plate, hit a tree limb and watch the roof wobble and buckle.
No trees in Italy I reckon. I'm going to put a large washer under mine to see if that helps, but will probably just rip a bigger hole!
I've seen guys use a circular saw blade as a washer...not sure how that helps in the grounding department.
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Sent from my SAMSUNG-SM-G730A using Tapatalk
Nope. In fact I used a similar size mount to support my Tarheel screwdriver antenna.
The whips are very flexible. That's why they're called whips and not rods or bars.
But that base load is nearly 10" tall...that WON'T flex.
Again, on the car that is under five feet tall; its not an issue. But my truck is around 7 to 7.5 feet tall, and branches do happen to hang down into the travel lanes from time to time. That's my concern...a low limb clipping the load of the Sirio, not the whip.
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Again, on the car that is under five feet tall; its not an issue. But my truck is around 7 to 7.5 feet tall, and branches do happen to hang down into the travel lanes from time to time. That's my concern...a low limb clipping the load of the Sirio, not the whip.
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I have been running my Sirio for a couple years on my full size truck using the 165mm mag and have hit all kinds of things and never knocked the antenna off or damaged it.
I just added a 5/8 washer under mine. It may or may not make any difference but it couldn't hurt. It appears to be as stable as it can be. No sheet metal bending that I've noticed.
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Since there were indications that the NEW Wilson 5000 on the truck was "acting up", I swapped the Sirio onto the truck for the weekend. Here are things I noticed:
Swapping the OLD Wilson 5000 back onto the car caused several notable things. First, I have less feedback through the AM/FM radio (even on FM, I got horrible feedback). Second, my dead key is back down to 50 watts, from 75 to 100 watts with the Sirio. Even though I had a higher dead key with the Sirio, the Wilson shows more swing. Did it make a difference either way? Everyone said the radio sounds good, regardless of Wilson or Sirio. I have no explanation why I saw such an increase in dead key, yet less swing from the Sirio; but it is repeatable. For the record: Wilson 5000 = 50 watts dead key and 225 watts swing, Sirio = 75 to 100 watts dead key and 200 watts swing. The only thing changed was the antenna, I was putting out less than 1/4 watt from the radio, my variable doesn't go any lower.
Installed the Sirio on the truck, had to cut a full inch off the stinger. While sitting I can only get as low as 1.3:1 over all 40 channels where the NEW Wilson 5000 was 1.0:1. However, when moving the SWR does not fluctuate like the Wilson 5000 shows (1.0:1 to 1.7:1, indicating to me the NEW Wilson is failing internally). And the SWR settles in at 1.1:1 with the Sirio at highway speeds, no clue why that happens. I see no other change between the two in the truck...same dead key, same swing, same results on the air.
Other than I will need to reinforce the roof mount on the truck, I'll likely pick up another Sirio over the next couple weeks to replace both Wilsons...put the OLD Wilson on the shelf as a backup and put the NEW Wilson in the trash.
Swapping the OLD Wilson 5000 back onto the car caused several notable things. First, I have less feedback through the AM/FM radio (even on FM, I got horrible feedback). Second, my dead key is back down to 50 watts, from 75 to 100 watts with the Sirio. Even though I had a higher dead key with the Sirio, the Wilson shows more swing. Did it make a difference either way? Everyone said the radio sounds good, regardless of Wilson or Sirio. I have no explanation why I saw such an increase in dead key, yet less swing from the Sirio; but it is repeatable. For the record: Wilson 5000 = 50 watts dead key and 225 watts swing, Sirio = 75 to 100 watts dead key and 200 watts swing. The only thing changed was the antenna, I was putting out less than 1/4 watt from the radio, my variable doesn't go any lower.
Installed the Sirio on the truck, had to cut a full inch off the stinger. While sitting I can only get as low as 1.3:1 over all 40 channels where the NEW Wilson 5000 was 1.0:1. However, when moving the SWR does not fluctuate like the Wilson 5000 shows (1.0:1 to 1.7:1, indicating to me the NEW Wilson is failing internally). And the SWR settles in at 1.1:1 with the Sirio at highway speeds, no clue why that happens. I see no other change between the two in the truck...same dead key, same swing, same results on the air.
Other than I will need to reinforce the roof mount on the truck, I'll likely pick up another Sirio over the next couple weeks to replace both Wilsons...put the OLD Wilson on the shelf as a backup and put the NEW Wilson in the trash.
well to my understanding a high swr will cause your radio to have lower output.
which is why you check output with just a dummyload.the wilson may have a lower
swr but swr doesnt tell ya everything. i bet your wilson has a higher reactance
than your sirio. you want this to be low too. when i compared my wilson and sirio
my wilson had more reactance than the sirio .using output numbers doesnt tell ya
anything about how your antenna is working. and for doing TRUE power checks really
should use a dummy load to avoid different readings like this. hope this helps ya
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