What does LADD stand for?

[jwt873]

Canadian truckers use VHF FM radios on what are known as LADD frequencies. See --> Trucking Common Scanner Frequencies and Radio Frequency Reference

I live near a highway and sometimes scan these frequencies to see if I can hear any chatter. But, they seem to be unused in my neck of the woods.

Being curious, I wondered what the letters LADD stood for.

It's a breeze finding out the meaning of GMRS or FRS or MURS. A very quick Google search will turn up the meanings. But.... I've literally spent days searching the web to find out what LADD stands for. Google and Bing searches turn up endless discussions about LADD on Canadian trucker sites, but I've never seen a definition of what it is.

Does anyone know what LADD stands for??

 

[NDRADIONUT]

Its just LAD... Its logging something or other...

 

[cmjonesinc]

I've seen it written both ways but from what I've read it stands for Logging ADministration. I recall seeing a PDF from IC that had it listed as LAD so I would assume that's correct.

 

[QDP2012]

Being curious, I wondered what the letters LADD stood for... Does anyone know what LADD stands for??

Please see earlier thread's post LADD 1 noise - Calgary/West (Post #9).


Edit: cmjonesinc posted the same answer as is in the linked thread.

Hope this helps,

 

[jwt873]

Please see earlier thread's post LADD 1 noise - Calgary/West (Post #9).

Edit: cmjonesinc posted the same answer as is in the linked thread.

Hope this helps,

Heck.. I searched this forum (that's where I found the link that I included in my original post), but I missed this one.

Thanks!

 

[NDRADIONUT]

This is the list of freqs I have heard Canadian truckers where I live.. You may have some luck on them too...
140.7300
143.6250
143.7800
148.0000
150.0050
150.5150
150.5300
150.7850
151.1150
153.0500 ab wide 1
153.2300
153.3050
153.6350
154.1000 lad 1
154.3250 lad 3
158.2350
158.3250
158.9400 lad 2
159.6000
159.7500
162.1800
162.2100 ab wide 2
162.2400
162.3300
163.0050 ab wide 3
164.2050
164.7150
165.0300
165.0750
165.2250
165.4800 ab wide 4
165.5400
165.9000
166.0350
166.0800
166.2000
166.6200 ab wide 5
166.9200
167.6400
168.1200 ab wide 6
168.3000
168.4800
168.6750
168.9900
169.2900
170.0550
170.3100
170.3250
170.6250
170.6850
170.9400
172.1850
172.2450
173.3700 lad 4

 

[BC_Scan]

From an old book I have : Logging Administrative Dispatch , and for the record back in the day it was spelt as LAD 1 etc. dont recall were the extra D came in.

 

[n4yek]

....don't recall were the extra D came in.

That came from Fred Sanford, Logging Administrative Dispatch......Dummy
:lol:

 

[robertmac]

This has been largely beaten to death under Prairies and Pacific Coast thread. They are often used illegally in other areas for which their license does not grant use. Often abused similar to the way CB went when truckers took over that as well. And LADD frequencies only apply to a few frequencies, not all the frequencies posted by someone else on this thread. And surprisingly, you shouldn't hear much on LADD in your area as they are generally licensed for Northern areas of BC, Alberta, Sask, and Manitoba [don't know where Woodland is in Manitoba].

 

[NDRADIONUT]

I went back and labeled the lad and ab wide freqs so there is no confusion... The rest are mostly various business freqs that they seem to use where they wish...

 

[kayn1n32008]

I went back and labeled the lad and ab wide freqs so there is no confusion... The rest are mostly various business freqs that they seem to use where they wish...

With out being able to query IC data at this time, my guess, is they are mostly licensed as mobile to mobile. 140.730MHz for example, is a frequency my company is licensed for, same with 169.710MHz. We are licensed for mobile to mobile @ 30w, @ 2w and @ 5w on both those frequencies. We run carrier squelch, but a company I used to work for ran full DPL on 169.710MHz

They would be 'company' channels. The licenses all will have some sort of geographic restriction, but as you have found, the actual users probably have no idea there are restrictions.
My guess on something like 140.730Mhz you are as likely to find them using carrier squelch as you will find them running PL/DPL.

153.230Mhz is another common mobile to mobile frequency, possibly known as one of 5 or 6 'seismic' channels.

148.000Mhz is probably truckers using modified ham gear. That is not a legit LMR channel in Canada. I *think* the first valid LMR channel would be 148.005 or 148.015 in Canada. Not really sure though.



Sent from my iPad using Tapatalk

 

[SCPD]

Equipment

Just wondering. Seen the long list of frequencies, and the shorter list of LAD frequencies.
Are these just standard commercial radios being used? Or special radios with just the dedicated LADD frequencies?

 

[NDRADIONUT]

Commercial and modified vhf ham radios...

 

[kayn1n32008]

Commercial and modified vhf ham radios...

I agree some will be using modified ham gear, lots buy 128-512ch radios. Not sure if you actually looked at any of the firtual licenses i referenced, when you were trying to tell me the LADD/AB OPEN were licensed Canada wide, but with the 1, B1, 6, RR appendix added to a license, it authorizes the licensee to use, subject to geographic restrictions, and license holder approval, a boat load of unique frequencies.

Just wondering. Seen the long list of frequencies, and the shorter list of LAD frequencies.
Are these just standard commercial radios being used? Or special radios with just the dedicated LADD frequencies?

Plain jane LMR radios. As long as they meet IC approval for use on LMR frequencies. Aka no ham gear, but it is not uncommon to see Yae/Ken/Icom modified ham gear. Usually on fly by night companies.