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Posted: 2/16/2018 5:44:17 PM EDT
[#1]
IF you're actually licensed to operate on 10 meters, the answer should be clear.
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Posted: 2/16/2018 5:47:58 PM EDT
[#2]
Quote HistoryQuoted:
IF you're actually licensed to operate on 10 meters, the answer should be clear. |
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Posted: 2/16/2018 6:10:52 PM EDT
[#3]
Its going to be changing the SWR quite a bit. The finals in the radio probably wont appreciate it.
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Posted: 2/16/2018 6:13:47 PM EDT
[#4]
Quote HistoryQuoted:
Its going to be changing the SWR quite a bit. The finals in the radio probably wont appreciate it. Should I forget the 102's and go with something more rigid |
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Posted: 2/16/2018 8:20:27 PM EDT
[#5]
What isyour rationale for dual whips?
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Posted: 2/16/2018 8:27:40 PM EDT
[#6]
Quote HistoryQuoted:
What isyour rationale for dual whips? |
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Posted: 2/16/2018 8:30:32 PM EDT
[#7]
Long piece of heat shrink tubing will prevent a direct short to ground but the SWR will still be sky high
when the whip is near the body of the vehicle. |
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Posted: 2/16/2018 8:35:25 PM EDT
[#8]
Quote HistoryQuoted:
Long piece of heat shrink tubing will prevent a direct short to ground but the SWR will still be sky high when the whip is near the body of the vehicle. |
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Posted: 2/16/2018 8:38:49 PM EDT
[#9]
Quote HistoryQuoted:
IF you're actually licensed to operate on 10 meters, the answer should be clear. QRZ is that way.------> |
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Posted: 2/16/2018 8:39:28 PM EDT
[#10]
Quote HistoryQuoted:
Long piece of heat shrink tubing will prevent a direct short to ground but the SWR will still be sky high when the whip is near the body of the vehicle. |
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Posted: 2/16/2018 8:41:47 PM EDT
[#11]
I'm all for using a different antenna as I'm taking the radio out of a 4runner and putting it into a '74 power wagon. I can't imagine where I would put a 102 on that so I will keep the duel 102's on the 4runner and figure out something for the power wagon
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Posted: 2/16/2018 8:44:54 PM EDT
[#12]
It may or may not operate on 11 meter if a certain diode were to "fall out".
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Posted: 2/16/2018 8:48:33 PM EDT
[#13]
Quote HistoryQuoted:
Swr's were really low, under 1 the whip is against the body with heat shrink in place. You can test this theory by setting up your SWR meter and watch it as you or someone else pushes the whip(s) towards the body with an insulated pole or wooden stick several feet long. The SWR will fluctuate and get higher as it nears the body. I love 102 inch whips and have one on my Jeep. It's mounted above the right tail light on a spring. I have a clip on the windshield frame to hook it to if I want to get into a parking garage etc.. I've watched the SWR when wheeling and it swings wildly when it's whipping back and forth especially when it contacts tree limbs. |
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Posted: 2/16/2018 8:57:05 PM EDT
[#14]
Quote HistoryQuoted:
Under 1 with the whips spaced away from the body by inches, not .020 of an inch like if the whip is against the body with heat shrink in place. You can test this theory by setting up your SWR meter and watch it as you or someone else pushes the whip(s) towards the body with an insulated pole or wooden stick several feet long. The SWR will fluctuate and get higher as it nears the body. I love 102 inch whips and have one on my Jeep. It's mounted above the right tail light on a spring. I have a clip on the windshield frame to hook it to if I want to get into a parking garage etc.. I've watched the SWR when wheeling and it swings wildly when it's whipping back and forth especially when it contacts tree limbs. I too fabricated some hooks to hold them from swinging, but that affects power a lot. I will try to figure out a better option to avoid the whipping although the power wagon will be a work truck and not to be used for "fun" so I don't think I will use any 102s on that. I do want the best I can get for it though. |
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Posted: 2/16/2018 9:00:45 PM EDT
[#15]
POS uniden? What awesome “10 meter” rig do you have yourself there? A galaxy? Connex?
I have no problem with CB and there are even some pictures of my 7100 in my truck tuned into ch19, but at least call it like it is. No one here is fooled. SWR is a very small part of an antennas efficiency. You probably loose more signal in the T and extra coax then another antenna would make up. Plus there are effects of phasing which makes your signal no longer omnidirectional. |
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Posted: 2/16/2018 9:10:33 PM EDT
[#16]
Quote HistoryQuoted:
POS uniden? What awesome “10 meter” rig do you have yourself there? A galaxy? Connex? I have no problem with CB and there are even some pictures of my 7100 in my truck tuned into ch19, but at least call it like it is. No one here is fooled. SWR is a very small part of an antennas efficiency. You probably loose more signal in the T and extra coax then another antenna would make up. Plus there are effects of phasing which makes your signal no longer omnidirectional. What does cb have to do with any of this? My radio will not operate on 11 meter unless some electronics are modified and that would be illegal. I wasnt running a T, I have a tuned duel antenna cable with no extra. Go back to GD if you want to throw rocks, I'm just looking for some info and guidence |
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Posted: 2/16/2018 9:24:50 PM EDT
[#17]
Haha I had no idea Stryker made radios, they match the expectation I had.
Tuned cable? What are you talking about a cable that terminates to two antennas is somehow different then a T? Guess what you still sending -3db to each antenna that has 0 gain. Hopefully that diode don’t fall out your radio 
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Posted: 2/16/2018 9:25:46 PM EDT
[#18]
On the highway 102's will be fine. it's when they are whipping around
wildly or pressed against some nearby object is where problems begin. gcw is right though. You would be better served by a single whip installed in the center of the roof if possible. Even if the SWR is good, radiation efficiency on a mobile whip is low and phasing antennas makes them directional. The direction of the signal depends on phasing and in some cases it doesn't work to your advantage while mobile. |
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Posted: 2/16/2018 9:29:00 PM EDT
[#19]
But because I really enjoy this forum I will make a serious post.
Yes your antennas swinging around and possibly shorting out on a grounded body panel or worst each other, is more than capable of running the final stage of the amplifier. The uniden the other driver had would only be a 4w radio and given the great losses in most CB installs was radiating very little energy in comparison to your setup. So was most likely not the cause of damage. |
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Posted: 2/16/2018 9:34:44 PM EDT
[#20]
Quote HistoryQuoted:
On the highway 102's will be fine. it's when they are whipping around wildly or pressed against some nearby object is where problems begin. gcw is right though. You would be better served by a single whip installed in the center of the roof if possible. Even if the SWR is good, radiation efficiency on a mobile whip is low and phasing antennas makes them directional. The direction of the signal depends on phasing and in some cases it doesn't work to your advantage while mobile. |
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Posted: 2/16/2018 9:40:56 PM EDT
[#21]
Quote HistoryQuoted:
But because I really enjoy this forum I will make a serious post. Yes your antennas swinging around and possibly shorting out on a grounded body panel or worst each other, is more than capable of running the final stage of the amplifier. The uniden the other driver had would only be a 4w radio and given the great losses in most CB installs was radiating very little energy in comparison to your setup. So was most likely not the cause of damage. Btw, the Stryker is a pretty decent radio, it beats my alinco hands down at least in ease of operation, much better than my old galaxy dx-66v and compared to my yaesu 6 meter it holds its own for what it is. |
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Posted: 2/16/2018 9:45:28 PM EDT
[#22]
What suggestions would any of you have for a 10 meter antenna that I can mount on a pickup truck?
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Posted: 2/16/2018 9:49:56 PM EDT
[#23]
Quote HistoryQuoted:
Haha I had no idea Stryker made radios, they match the expectation I had. Tuned cable? What are you talking about a cable that terminates to two antennas is somehow different then a T? Guess what you still sending -3db to each antenna that has 0 gain. Hopefully that diode don’t fall out your radio |
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Posted: 2/16/2018 10:39:02 PM EDT
[#24]
Quote HistoryQuoted:
What suggestions would any of you have for a 10 meter antenna that I can mount on a pickup truck? |
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Posted: 2/16/2018 11:57:25 PM EDT
[#25]
Quote HistoryQuoted:
A Wilson 1000 mounted in the center of the roof if it will be a road vehicle. |
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Posted: 2/17/2018 12:10:40 AM EDT
[#26]
Quote HistoryQuoted:
A Wilson 1000 mounted in the center of the roof if it will be a road vehicle. 
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Posted: 2/17/2018 11:41:06 AM EDT
[#27]
"duel"
"duel 102 antennas" "70-90 watt...Stryker" (with 6 different roger beeps  )
"wave was great" (What the hell does this mean? )
"swr was under 1" (Since the lowest SWR is 1:1 that's not possible) Sorry OP. You may be licensed, and all of your radio operations may be perfectly legal, but all of these things are strong and classic indicators of illegal CB operations. Just so you know, in case you were wondering why some folks had a negative reaction to any of your posts, etc., etc. |
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Posted: 2/17/2018 11:47:33 AM EDT
[#28]
Man my spelling was all off last night
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Posted: 2/17/2018 1:23:48 PM EDT
[#29]
Quote HistoryQuoted:
"duel" "duel 102 antennas" "70-90 watt...Stryker" (with 6 different roger beeps )
"wave was great" (What the hell does this mean? )
"swr was under 1" (Since the lowest SWR is 1:1 that's not possible) Sorry OP. You may be licensed, and all of your radio operations may be perfectly legal, but all of these things are strong and classic indicators of illegal CB operations. Just so you know, in case you were wondering why some folks had a negative reaction to any of your posts, etc., etc. |
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Posted: 2/17/2018 1:28:19 PM EDT
[#30]
Quote HistoryQuoted:
Man my spelling was all off last night |
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Posted: 2/17/2018 3:02:59 PM EDT
[#31]
Quote HistoryQuoted:
"duel" "duel 102 antennas" "70-90 watt...Stryker" (with 6 different roger beeps )
"wave was great" (What the hell does this mean? )
"swr was under 1" (Since the lowest SWR is 1:1 that's not possible) Sorry OP. You may be licensed, and all of your radio operations may be perfectly legal, but all of these things are strong and classic indicators of illegal CB operations. Just so you know, in case you were wondering why some folks had a negative reaction to any of your posts, etc., etc. |
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Posted: 2/17/2018 3:10:55 PM EDT
[#32]
Agreed
Quote HistoryQuoted:
"duel" "duel 102 antennas" "70-90 watt...Stryker" (with 6 different roger beeps )
"wave was great" (What the hell does this mean? )
"swr was under 1" (Since the lowest SWR is 1:1 that's not possible) Sorry OP. You may be licensed, and all of your radio operations may be perfectly legal, but all of these things are strong and classic indicators of illegal CB operations. Just so you know, in case you were wondering why some folks had a negative reaction to any of your posts, etc., etc. |
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Posted: 2/17/2018 3:12:05 PM EDT
[#33]
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Posted: 2/17/2018 8:05:22 PM EDT
[#34]
Quote HistoryTiming isn't your problem
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Posted: 2/17/2018 8:58:27 PM EDT
[#35]
Jeebers. I sure hope this forum doesn't turn into QRZ.
We all started somewhere and even yours truly came from the CB world. On that note..."four pieces of glass will get a tetrode stuck in your @$$".  No Excuses On Da Bowl by Prime Minister KB7DX does not condone illegal operations, but you all have to admit, it's a pretty funny song.
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Posted: 2/17/2018 9:40:36 PM EDT
[#36]
co phasing 2 quarter waves should be spaced about 8.5 ft apart. 1/4 wave
If you imagine seeing a typical 18wheeler arrangement, his propagation has gain in front of, and behind his truck. and less off to the sides. moving the 2 antennas closer than 1/4 wave apart is less than ideal. you can put shrink wrap over the whips, but RF is NOT DC and your SWR can skyrocket due to capacitive reactance also the term is SWR, not swr's what "POS uniden" works on the ham bands ? 10 meter propagation isn't best these days du to the sunspot cycle, in other words, you ain't gonna hear as much "helllllo skipland hellllo skipland" It doesn't really matter if you're running a 4 watt CB, or a 200 watt TS-480, co phased 102" whips clanging around the truck body is how you blow up finals.  Attached Filebirdseye view of 18wheeler, red is antenna propagation radiation pattern ( when actually placed 1/4 wave apart.) |
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Posted: 2/17/2018 10:22:00 PM EDT
[#37]
Quote HistoryQuoted:
co phasing 2 quarter waves should be spaced about 8.5 ft apart. 1/4 wave If you imagine seeing a typical 18wheeler arrangement, his propagation has gain in front of, and behind his truck. and less off to the sides. moving the 2 antennas closer than 1/4 wave apart is less than ideal. you can put shrink wrap over the whips, but RF is NOT DC and your SWR can skyrocket due to capacitive reactance also the term is SWR, not swr's what "POS uniden" works on the ham bands ? 10 meter propagation isn't best these days du to the sunspot cycle, in other words, you ain't gonna hear as much "helllllo skipland hellllo skipland" It doesn't really matter if you're running a 4 watt CB, or a 200 watt TS-480, co phased 102" whips clanging around the truck body is how you blow up finals. https://www.AR15.Com/media/mediaFiles/2275/D21A337C-0F24-4626-BB76-EFF1F93F0FD2-455483.JPG birdseye view of 18wheeler, red is antenna propagation radiation pattern ( when actually placed 1/4 wave apart.) |
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Posted: 2/17/2018 10:31:13 PM EDT
[#38]
Why does this entire thread make me feel dirty...
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Posted: 2/17/2018 10:37:58 PM EDT
[#39]
Quote HistoryQuoted:
Jeebers. I sure hope this forum doesn't turn into QRZ.
We all started somewhere and even yours truly came from the CB world. On that note..."four pieces of glass will get a tetrode stuck in your @$$".  https://www.youtube.com/watch?v=1IfS4oMa1Jg
KB7DX does not condone illegal operations, but you all have to admit, it's a pretty funny song. |
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Posted: 2/17/2018 10:43:23 PM EDT
[#40]
Quote HistoryQuoted:
Why does this entire thread make me feel dirty... |
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Posted: 2/17/2018 11:10:25 PM EDT
[#41]
Quote HistoryQuoted:
Why does this entire thread make me feel dirty... when he should have just said CB, and left the illegal power output out, which would have resulted in less flak [shrug] |
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Posted: 2/18/2018 12:41:05 AM EDT
[#42]
Quote HistoryQuoted: because the OP is trying to bullshit everyone into thinking this is a ham question. when he should have just said CB, and left the illegal power output out, which would have resulted in less flak [shrug] Which part of that code are you having trouble cracking? |
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Posted: 2/18/2018 12:45:03 AM EDT
[#43]
"I still haven't started to setup my base rig yet out of worry of blowing that up" (no ham worries about this--they buy a quality radio and pair it with a properly configured, quality antenna, and tuner if necessary)
"a $600 mobile radio was bad enough" (no ham would spend this on a 10M radio, they would buy an Icom-718 brand new for the same money and have a nice 10 to 160M radio that won't blow up if you run it into some challenging VSWR situations--by accident) "and the base antenna options are overwhelming to say the least" (again, no ham would say this, they'd just put up a 10M dipole or vertical--things only get challenging when you look at all the CB options and start believing the BS) Three more things only a CB'er would say. Just sayin'... If you are a ham coming over from the CB world, then throw away everything you thought you knew and start over. And you won't be communicating with anyone that has a Uniden radio, at least not on the ham bands. If you aren't... |
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Posted: 2/18/2018 12:56:21 AM EDT
[#44]
Quote HistoryQuoted:
"I still haven't started to setup my base rig yet out of worry of blowing that up" (no ham worries about this--they buy a quality radio and pair it with a properly configured, quality antenna, and tuner if necessary) "a $600 mobile radio was bad enough" (no ham would spend this on a 10M radio, they would buy an Icom-718 brand new for the same money and have a nice 10 to 160M radio that won't blow up if you run it into some challenging VSWR situations--by accident) "and the base antenna options are overwhelming to say the least" (again, no ham would say this, they'd just put up a 10M dipole or vertical--things only get challenging when you look at all the CB options and start believing the BS) Three more things only a CB'er would say. Just sayin'... If you are a ham coming over from the CB world, then throw away everything you thought you knew and start over. And you won't be communicating with anyone that has a Uniden radio, at least not on the ham bands. If you aren't... If you ham experts want to throw rocks the least you could do is pay attention to obvious details before people start to think you don't know it all. |
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Posted: 2/18/2018 10:03:35 AM EDT
[#45]
what model radio is it ?
can you post pics of the radio and antennas ? |
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Posted: 2/18/2018 10:48:08 AM EDT
[#46]
Its a Stryker Sr-955, aftermarket Mic I can't remember all the details of the work that was done without looking through paperwork.
The antennas are duel 102 whips, ball mounts, springs ECT attached about 6 inches from the taillights on either side of a Toyota 4runner. Cables were tuned and cut to proper length for optimal resonance using some star trek looking equipment I don't have a photo host so I can't post any pics. I'm now convinced from those that have given input and advice that the antennas slapping around on the truck body and each other is what burnt the finals out so I will not be using this setup again. On the new setup in the other truck I will have only one antenna and whatever I use will not be able to ground on anything and the vehicle will not be used for fun. I understand that 10 meter works best according to sun cycles now( had no idea when purchased), but thats not really my issue. I purchased the radio a year or so ago then got licensed while I waited for it to arrive now I'm waiting to get it set back up and just look forward to making contacts. |
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Posted: 2/18/2018 11:05:58 AM EDT
[#47]
This ?
.JPG)
How long have you been a ham ? What license do you have ? technician ? General ? advanced ? ect.? . |
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Posted: 2/18/2018 11:17:09 AM EDT
[#48]
Quote HistoryQuoted:
This ? http://cbradiomagazine.com/Radio%20Reviews/Stryker%20SR-955HP/Web/IMG_4270%20(Copy).JPG How long have you been a ham ? What license do you have ? technician ? General ? advanced ? ect.? . |
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Posted: 2/18/2018 11:40:47 AM EDT
[#49]
Nobody is buyin’ what you’re sellin’
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Posted: 2/18/2018 12:22:42 PM EDT
[#50]
Quote HistoryQuoted:
...the least you could do is pay attention to obvious details... If you are serious about ham radio and want to operate on 10M, then here is some free advice: sell the junk and buy a higher quality radio. I bet you could get $300 for that Stryker, cause, you know, it's got echo and roger beeps and all that, and because "its been worked on". Sell one other radio that you bought "right off the bat" and now go buy a used Icom 718. They go for about $450 on qth.com, eham.net, etc. Then get yourself a good, quality, simple, bread and butter ham-stick type antenna, like these. Read this web site to learn how to install it, primarily about power wiring and grounding. Install in accordance with what you read there. Tune the antenna length using the SWR meter built into the 718, no Star Trek equipment required. Right now 10M is dead. So upgrade to general and buy ham sticks for the other bands. Given where we are in the solar cycle, without even trying you'll be able to make lots of contacts on 20M in the daytime, 40M in the afternoon, 80M later in the afternoon and evening. You'll have a lot more fun. However, if all you want to do is talk to your buddy with the Uniden when he's pulling you out of a mud-hole, then buy a legit CB and be done with it. At legit CB radio power levels you won't "blow your finals" no matter how much the antennas slap around. |
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