On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf radio already on my truck. Will this antenna work with my new radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for. There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz). Marine radios operate in the high band.

Generally it will receive ok but transmit range may be limited due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has 8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof. That is what I had on my van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio. But the antenna
issues remain the same. For max range whatever antenna he uses needs to
be of the proper length. At 27 MHz a full wavelength is about 103
inches. A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use anymore
but for some reason it's one of those things I just can't throw away.

Mr. Luddite wrote:
On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf
radio already on my truck. Will this antenna work with my new radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for. There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz). Marine radios operate in the high band.

Generally it will receive ok but transmit range may be limited due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has 8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof. That is what I had on my van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio. But the antenna
issues remain the same. For max range whatever antenna he uses needs to
be of the proper length. At 27 MHz a full wavelength is about 103
inches. A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use anymore
but for some reason it's one of those things I just can't throw away.






I have one for my marine VHF. Have not used it in years. Actually I am
looking at a new radio for the boat. One with AIS. Maybe Santa Clause.

On Tue, 27 Nov 2018 21:42:22 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf radio already on my truck. Will this antenna work with my new radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for. There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz). Marine radios operate in the high band.

Generally it will receive ok but transmit range may be limited due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has 8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof. That is what I had on my van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio. But the antenna
issues remain the same. For max range whatever antenna he uses needs to
be of the proper length. At 27 MHz a full wavelength is about 103
inches. A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use anymore
but for some reason it's one of those things I just can't throw away.

I used to just buy what they had at Radio shack or something but my
old 3d shift partner was a Ham/Navy ET so I got pretty good guidance.
;-)
He was an RF wizard.
He was the guy who left FE, went to IBM FSD, Lockheed, Loral and
worked in Germany for a decade or two and now retired in Colorado.
http://gfretwell.com/ftp/colorado/Greg%20and%20John.jpg
Three old guys on the top of the hill behind John's house, next to the
fence to Rocky Mountain Federal Park.
Another Navy guy doing well! I hope "Dutch" (the dog) is still OK
;-)

On Wed, 28 Nov 2018 03:06:28 -0000 (UTC), Bill
wrote:

Mr. Luddite wrote:
On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf
radio already on my truck. Will this antenna work with my new radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for. There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz). Marine radios operate in the high band.

Generally it will receive ok but transmit range may be limited due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has 8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof. That is what I had on my van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio. But the antenna
issues remain the same. For max range whatever antenna he uses needs to
be of the proper length. At 27 MHz a full wavelength is about 103
inches. A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use anymore
but for some reason it's one of those things I just can't throw away.






I have one for my marine VHF. Have not used it in years. Actually I am
looking at a new radio for the boat. One with AIS. Maybe Santa Clause.

My wife has her phone. That is all we need ;-)
Worst case I call a tow pirate but I have plenty of neighbors who owe
me a tow.
Sinking is not an issue, we will just wade ashore, I will plot a
course through the mangroves with my aerial photos and boy scout
compass and we will walk home.
I do have loppers on the boat ;-)

On 11/27/2018 11:15 PM, wrote:
On Wed, 28 Nov 2018 03:06:28 -0000 (UTC), Bill
wrote:

Mr. Luddite wrote:
On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf
radio already on my truck. Will this antenna work with my new radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for. There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz). Marine radios operate in the high band.

Generally it will receive ok but transmit range may be limited due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has 8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof. That is what I had on my van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio. But the antenna
issues remain the same. For max range whatever antenna he uses needs to
be of the proper length. At 27 MHz a full wavelength is about 103
inches. A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use anymore
but for some reason it's one of those things I just can't throw away.






I have one for my marine VHF. Have not used it in years. Actually I am
looking at a new radio for the boat. One with AIS. Maybe Santa Clause.

My wife has her phone. That is all we need ;-)
Worst case I call a tow pirate but I have plenty of neighbors who owe
me a tow.
Sinking is not an issue, we will just wade ashore, I will plot a
course through the mangroves with my aerial photos and boy scout
compass and we will walk home.
I do have loppers on the boat ;-)


Back in the CB craze (late 70's) Radio Shack sold a base unit that
could easily be modified if you knew what you were doing. I bought
one along and acquired a list of the required modifications.

The modifications added an additional 40 channels (unauthorized) and
increased the carrier power from 5 watts to 15 watts.
It also increased the effective single sideband mode power to
over 30 watts depending on how much you modulated it which was
also another "tweak". At the time we lived in a rented house
near the shore and on Sunday mornings I could communicate via "skip"
with people in much of eastern Europe, as far away as Italy. In the
evening I could easily talk to people west of the Mississippi using
skip as far away as California, depending on the time as the sun set.

Ended up doing the same mods for a couple of people who also
bought the same Radio Shack radio.

Don't know whatever happened to that radio. I lost interest in CB
after a while.

On 11/28/18 7:02 AM, Mr. Luddite wrote:
On 11/27/2018 11:15 PM, wrote:
On Wed, 28 Nov 2018 03:06:28 -0000 (UTC), Bill
wrote:

Mr. Luddite wrote:
On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf
radio already on my truck. Will this antenna work with my new radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for.Â* There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz).Â* Marine radios operate in the high band.

Generally it will receive ok but transmit range may be limited due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has 8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof.Â* That is what I had on my van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio.Â*Â* But the antenna
issues remain the same. For max range whatever antenna he uses needs to
be of the proper length.Â* At 27 MHz a full wavelength is about 103
inches.Â* A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to
trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use
anymore
but for some reason it's one of those things I just can't throw away.






I have one for my marine VHF.Â* Have not used it in years.Â* Actually I am
looking at a new radio for the boat.Â* One with AIS.Â* Maybe Santa Clause.

My wife has her phone. That is all we needÂ* ;-)
Worst case I call a tow pirate but I have plenty of neighbors who owe
me a tow.
Sinking is not an issue, we will just wade ashore, I will plot a
course through the mangroves with my aerial photos and boy scout
compass and we will walk home.
I do have loppers on the boatÂ* ;-)


Back in the CB craze (late 70's)Â* Radio Shack sold a base unit that
could easily be modified if you knew what you were doing.Â* I bought
one along and acquired a list of the required modifications.

The modifications added an additional 40 channels (unauthorized) and
increased the carrier power from 5 watts to 15 watts.
It also increased the effective single sideband mode power to
over 30 watts depending on how much you modulated it which was
also another "tweak".Â*Â* At the time we lived in a rented house
near the shore and on Sunday mornings I could communicate via "skip"
with people in much of eastern Europe, as far away as Italy.Â*Â* In the
evening I could easily talk to people west of the Mississippi using
skip as far away as California, depending on the time as the sun set.

Ended up doing the same mods for a couple of people who also
bought the same Radio Shack radio.

Don't know whatever happened to that radio.Â* I lost interest in CB
after a while.


Never understood the "CB culture." I don't even like to talk on the
phone that much.

On 11/28/2018 7:04 AM, Keyser Soze wrote:
On 11/28/18 7:02 AM, Mr. Luddite wrote:
On 11/27/2018 11:15 PM, wrote:
On Wed, 28 Nov 2018 03:06:28 -0000 (UTC), Bill
wrote:

Mr. Luddite wrote:
On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf
radio already on my truck. Will this antenna work with my new
radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for.Â* There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz).Â* Marine radios operate in the high
band.

Generally it will receive ok but transmit range may be limited
due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he
won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has
8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof.Â* That is what I had on my
van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio.Â*Â* But the antenna
issues remain the same. For max range whatever antenna he uses
needs to
be of the proper length.Â* At 27 MHz a full wavelength is about 103
inches.Â* A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to
trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use
anymore
but for some reason it's one of those things I just can't throw away.






I have one for my marine VHF.Â* Have not used it in years.Â* Actually
I am
looking at a new radio for the boat.Â* One with AIS.Â* Maybe Santa
Clause.

My wife has her phone. That is all we needÂ* ;-)
Worst case I call a tow pirate but I have plenty of neighbors who owe
me a tow.
Sinking is not an issue, we will just wade ashore, I will plot a
course through the mangroves with my aerial photos and boy scout
compass and we will walk home.
I do have loppers on the boatÂ* ;-)


Back in the CB craze (late 70's)Â* Radio Shack sold a base unit that
could easily be modified if you knew what you were doing.Â* I bought
one along and acquired a list of the required modifications.

The modifications added an additional 40 channels (unauthorized) and
increased the carrier power from 5 watts to 15 watts.
It also increased the effective single sideband mode power to
over 30 watts depending on how much you modulated it which was
also another "tweak".Â*Â* At the time we lived in a rented house
near the shore and on Sunday mornings I could communicate via "skip"
with people in much of eastern Europe, as far away as Italy.Â*Â* In the
evening I could easily talk to people west of the Mississippi using
skip as far away as California, depending on the time as the sun set.

Ended up doing the same mods for a couple of people who also
bought the same Radio Shack radio.

Don't know whatever happened to that radio.Â* I lost interest in CB
after a while.


Never understood the "CB culture." I don't even like to talk on the
phone that much.


For a while CB had two cultures, the "good buddy" road travel
communications and people like me who were more interested in
seeing how far you could communicate with others, similar to
HAM radio and their custom of exchanging "QSL" cards by mail confirming
successful contacts.

Only time I was glad to have a CB radio in my vehicle was before
cell phones came along. Was traveling up Rt. 95 from Long Island
heading home at about one in the morning. It was raining hard
and a car whizzed by me in the fast lane. Suddenly, all I saw
were his headlights flashing back at me several times. As I
approached him, his car was upside down on the side of the road.
He had hit a large puddle of water and had hydroplaned, causing
his car to hit the center guardrail and then flip several times.

Got on the CB and after a few tries contacted someone who called
the state police. I helped get the guy out of his car and he
sat with me in mine until the police arrived. He was shaken up
big time but didn't appear to have any serious injuries.

On Wed, 28 Nov 2018 07:02:16 -0500, "Mr. Luddite" wrote:

On 11/27/2018 11:15 PM, wrote:
On Wed, 28 Nov 2018 03:06:28 -0000 (UTC), Bill
wrote:

Mr. Luddite wrote:
On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf
radio already on my truck. Will this antenna work with my new radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for. There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz). Marine radios operate in the high band.

Generally it will receive ok but transmit range may be limited due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has 8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof. That is what I had on my van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio. But the antenna
issues remain the same. For max range whatever antenna he uses needs to
be of the proper length. At 27 MHz a full wavelength is about 103
inches. A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use anymore
but for some reason it's one of those things I just can't throw away.






I have one for my marine VHF. Have not used it in years. Actually I am
looking at a new radio for the boat. One with AIS. Maybe Santa Clause.

My wife has her phone. That is all we need ;-)
Worst case I call a tow pirate but I have plenty of neighbors who owe
me a tow.
Sinking is not an issue, we will just wade ashore, I will plot a
course through the mangroves with my aerial photos and boy scout
compass and we will walk home.
I do have loppers on the boat ;-)


Back in the CB craze (late 70's) Radio Shack sold a base unit that
could easily be modified if you knew what you were doing. I bought
one along and acquired a list of the required modifications.

The modifications added an additional 40 channels (unauthorized) and
increased the carrier power from 5 watts to 15 watts.
It also increased the effective single sideband mode power to
over 30 watts depending on how much you modulated it which was
also another "tweak". At the time we lived in a rented house
near the shore and on Sunday mornings I could communicate via "skip"
with people in much of eastern Europe, as far away as Italy. In the
evening I could easily talk to people west of the Mississippi using
skip as far away as California, depending on the time as the sun set.

Ended up doing the same mods for a couple of people who also
bought the same Radio Shack radio.

Don't know whatever happened to that radio. I lost interest in CB
after a while.

Had a job as advisor to Reserve and National Guard units, working out of LA with units in CA, AZ,
and NV. Depended on my CB to keep me awake during the drives to and from these units. Wonder if the
truckers still use them much. My wife depends on an app called WAZE, which notifies of accidents,
cops, obstructions, etc, and suggests a route around the problem. I don't trust it much, but it's
all she uses.

On Wed, 28 Nov 2018 07:17:33 -0500, "Mr. Luddite" wrote:

On 11/28/2018 7:04 AM, Keyser Soze wrote:
On 11/28/18 7:02 AM, Mr. Luddite wrote:
On 11/27/2018 11:15 PM, wrote:
On Wed, 28 Nov 2018 03:06:28 -0000 (UTC), Bill
wrote:

Mr. Luddite wrote:
On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf
radio already on my truck. Will this antenna work with my new
radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for.* There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz).* Marine radios operate in the high
band.

Generally it will receive ok but transmit range may be limited
due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he
won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has
8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof.* That is what I had on my
van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio.** But the antenna
issues remain the same. For max range whatever antenna he uses
needs to
be of the proper length.* At 27 MHz a full wavelength is about 103
inches.* A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to
trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use
anymore
but for some reason it's one of those things I just can't throw away.






I have one for my marine VHF.* Have not used it in years.* Actually
I am
looking at a new radio for the boat.* One with AIS.* Maybe Santa
Clause.

My wife has her phone. That is all we need* ;-)
Worst case I call a tow pirate but I have plenty of neighbors who owe
me a tow.
Sinking is not an issue, we will just wade ashore, I will plot a
course through the mangroves with my aerial photos and boy scout
compass and we will walk home.
I do have loppers on the boat* ;-)


Back in the CB craze (late 70's)* Radio Shack sold a base unit that
could easily be modified if you knew what you were doing.* I bought
one along and acquired a list of the required modifications.

The modifications added an additional 40 channels (unauthorized) and
increased the carrier power from 5 watts to 15 watts.
It also increased the effective single sideband mode power to
over 30 watts depending on how much you modulated it which was
also another "tweak".** At the time we lived in a rented house
near the shore and on Sunday mornings I could communicate via "skip"
with people in much of eastern Europe, as far away as Italy.** In the
evening I could easily talk to people west of the Mississippi using
skip as far away as California, depending on the time as the sun set.

Ended up doing the same mods for a couple of people who also
bought the same Radio Shack radio.

Don't know whatever happened to that radio.* I lost interest in CB
after a while.


Never understood the "CB culture." I don't even like to talk on the
phone that much.


For a while CB had two cultures, the "good buddy" road travel
communications and people like me who were more interested in
seeing how far you could communicate with others, similar to
HAM radio and their custom of exchanging "QSL" cards by mail confirming
successful contacts.

Only time I was glad to have a CB radio in my vehicle was before
cell phones came along. Was traveling up Rt. 95 from Long Island
heading home at about one in the morning. It was raining hard
and a car whizzed by me in the fast lane. Suddenly, all I saw
were his headlights flashing back at me several times. As I
approached him, his car was upside down on the side of the road.
He had hit a large puddle of water and had hydroplaned, causing
his car to hit the center guardrail and then flip several times.

Got on the CB and after a few tries contacted someone who called
the state police. I helped get the guy out of his car and he
sat with me in mine until the police arrived. He was shaken up
big time but didn't appear to have any serious injuries.


A couple times I got a cop on the CB just using the handle 'Smokey'. Back then, mid-70's, they had
CBs also. Don't know about now.

On 11/28/2018 7:19 AM, John H. wrote:
On Wed, 28 Nov 2018 07:02:16 -0500, "Mr. Luddite" wrote:

On 11/27/2018 11:15 PM, wrote:
On Wed, 28 Nov 2018 03:06:28 -0000 (UTC), Bill
wrote:

Mr. Luddite wrote:
On 11/27/2018 7:36 PM, wrote:
On Tue, 27 Nov 2018 17:47:44 -0500, "Mr. Luddite"
wrote:

On 11/27/2018 5:22 PM, wrote:

I have a uniden CB radio (new) and have an existing larsen wb vhf
radio already on my truck. Will this antenna work with my new radio.
Derek


Can't determine without knowing what freq range the truck antenna is
"cut" for. There are two VHF bands, low-band VHF (49-108 MHz),
high-band VHF (169-216 MHz). Marine radios operate in the high band.

Generally it will receive ok but transmit range may be limited due to
high standing wave ratio (SWR).

Even a marine VHF antenna should be tweaked in terms of length to
minimize SWR in the middle of the radio's freq range.


He is talking about CB (27mz) so that is over twice the wavelength of
the lowest frequency VHF.
SWR is really going to be ugly but since they are capped at 5w,
(usually more like 4.5) I doubt the magic smoke comes out but he won't
be "getting out" far either.

If his "truck" is a real one (breaker good buddy size) and he has 8-9'
from mirror to mirror the best antenna is the co phasers you see on
big rigs. Otherwise it is hard to beat a bottom coil loaded ~48"
antenna right in the center of the roof. That is what I had on my van
but you had to remember to take off the vertical when you went into a
parking garage. ;-)



I completely missed that it was a CB radio he was talking about.
Thought he was talking about a new VHF Marine radio. But the antenna
issues remain the same. For max range whatever antenna he uses needs to
be of the proper length. At 27 MHz a full wavelength is about 103
inches. A half wave antenna would be about 51.5 inches long and
aquarter wave length antenna would therefore be about 25.75
inches.

If really anal about these things, an SWR meter should then used to trim
the antenna length to the lowest SWR on channel 20 (mid-range).

I have an old SWR meter from the CB craze years that I never use anymore
but for some reason it's one of those things I just can't throw away.






I have one for my marine VHF. Have not used it in years. Actually I am
looking at a new radio for the boat. One with AIS. Maybe Santa Clause.

My wife has her phone. That is all we need ;-)
Worst case I call a tow pirate but I have plenty of neighbors who owe
me a tow.
Sinking is not an issue, we will just wade ashore, I will plot a
course through the mangroves with my aerial photos and boy scout
compass and we will walk home.
I do have loppers on the boat ;-)


Back in the CB craze (late 70's) Radio Shack sold a base unit that
could easily be modified if you knew what you were doing. I bought
one along and acquired a list of the required modifications.

The modifications added an additional 40 channels (unauthorized) and
increased the carrier power from 5 watts to 15 watts.
It also increased the effective single sideband mode power to
over 30 watts depending on how much you modulated it which was
also another "tweak". At the time we lived in a rented house
near the shore and on Sunday mornings I could communicate via "skip"
with people in much of eastern Europe, as far away as Italy. In the
evening I could easily talk to people west of the Mississippi using
skip as far away as California, depending on the time as the sun set.

Ended up doing the same mods for a couple of people who also
bought the same Radio Shack radio.

Don't know whatever happened to that radio. I lost interest in CB
after a while.

Had a job as advisor to Reserve and National Guard units, working out of LA with units in CA, AZ,
and NV. Depended on my CB to keep me awake during the drives to and from these units. Wonder if the
truckers still use them much. My wife depends on an app called WAZE, which notifies of accidents,
cops, obstructions, etc, and suggests a route around the problem. I don't trust it much, but it's
all she uses.



The last time I used a CB was a few years back when I drove out to
Denver CO to pick up a '55 Ford F-100. I had the Ford 350 diesel then,
bought a car trailer and headed west. It was a great trip and I was
alone. Just me and the road.

I stopped at a truck stop somewhere along the way and decided to buy a
CB radio and installed it.

It became useful as I got further west on the highway when I'd drive for
miles without seeing another vehicle. After I picked up the '55 Ford
it was fun talking to truckers on the way back to MA when they saw
the F-100 on the trailer and were commenting to other truckers about it.
I'd join the conversation and it killed a lot of time driving back home.

Once I got back though I ended up taking the radio out and giving it to
one of my grandsons to play with.