• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

Complete SHA Channel Plan

Status
Not open for further replies.

skipshark773

Member
Joined
Dec 19, 2002
Messages
376
Location
Stuck in traffic on I-25
Hey folks,
I am back in MD for awhile and I came across a print out of the SHA's channel plan from a friend of mine. Since I am no longer a resident of Maryland, I thought one of you all should have the pleasure of posting it into the DB. It lists the channels in the following manner:

Ch Tx Freq Rx Freq Tx Cg Rx Cg
1 47.3200 47.3200 94.8 94.8
2 47.2600 47.2600 94.8 94.8
3 47.4000 47.4000 94.8 94.8
4 47.1400 47.1400 94.8 94.8
5 47.2000 47.2000 94.8 94.8
6 47.1000 47.1000 94.8 94.8
7 47.1200 47.1200 94.8 94.8
8 47.0200 47.0200 94.8 94.8
9 44.7400 44.7400
10 39.1000 39.1000
11 39.3400 39.3400 127.3 127.3
12 39.4400 39.4400 110.9 110.9
13 39.0400 39.0400 110.9 110.9
14 39.8400 39.8400 110.9 110.9
15 39.8000 39.8000 110.9 110.9
16 39.9600 39.9600 110.9 110.9
17 39.2400 39.2400 110.9
18 39.3400 39.3400 110.9
19 39.4000 39.4000 110.9
20 39.5200 39.5200 110.9
21 39.3200 39.3200 110.9
22 39.3000 39.3000 110.9
23 39.0600 39.0600 110.9
24 39.3800 39.3800 110.9
25 39.2800 39.2800 110.9
26 39.0600 39.0600 179.9
27 39.7800 39.7800 110.9
28 39.9600 39.9600 110.9
29 39.8000 39.8000 110.9
30 39.1400 39.1400 110.9
31 39.9200 39.9200 110.9
32 39.3400 39.3400 110.9

This printout was taken directly from a SHA mobile. "CG" is the GE term for CTCSS (just like PL is the Mot term for CTCSS) it stands for Channel Guard. I dont know why channels 17-32 do not have an Rx tone listed but the printout shows "OFF" as the value in the CCT column for all of those channels which may have something to do with it. In addition I have discovered older channel plans for the NRP and MDTA PD but I dont believe they are in use anymore and probably are not relevant.
 

TinEar

Member
Joined
Apr 10, 2003
Messages
6,658
Location
Glen Burnie, Maryland
Hey there Skipshark. Good to hear from you again. You came back just in time for the cool weather. You're not wishing you were back in Colorado, are you?

Thanks for the info.
 

TinEar

Member
Joined
Apr 10, 2003
Messages
6,658
Location
Glen Burnie, Maryland
I think it simply means the SHA has the ability to switch to almost any MSP barrack frequency. Just about every barrack is on the list with the correct PL tone. It even makes sense that they'd have that capability.
 
Status
Not open for further replies.
Top