|
|
VHF+ bands...
ARRL Band |
Frequency A - H (MHz) I - L (GHz) |
Wave- length |
Terrestrial Calling Frequencies (MHz) |
Narrowband- Horizontal Polarization |
Wideband/FM (Polarizat'n) |
| A |
50-54 |
6m |
50.125 |
52.525 (V) |
| B |
144-148 |
2m |
144.2 |
146.52 (V) |
| C |
222-225 |
135cm |
222.1 |
223.5 (V) |
| D |
420-450 |
70cm |
432.1 |
446.0 (V) |
| 9 |
902-928 |
33cm |
902.1 (Note#1, below) E. Coast & NW: 903.1 |
927.5 (North CA) (V) 906.5 elsewhere? (V) |
| E |
1240-1300 |
23cm |
1296.1 |
1294.5 (V) |
| F |
2300-2310 & 2390-2450 |
13cm |
2304.1 2304.2 (Canada) |
2304.5 & 2394.5 (?) 2305.2 (Canada & ARRL) (?) |
| US EME 2304.1, EU EME 2320.1, JA EME 2424.1 |
| G |
3300-3500 |
9cm |
3456.1 |
?? (?) |
| H |
5650-5925 |
5cm |
5760.1 |
?? (?) |
| I |
10-10.5 |
3cm |
10,368.1 |
10,250 & 10,280 (H) 10,450
(Canada) (?) 10,364.0 (ARRL) (?) |
| J |
24-24.25 |
12mm |
24,192.1 24,000.1 (Canada) |
24,125.0 & 24,155.0 (H) |
| K |
47-47.2 |
6mm |
47,088.1 (UK & NTX) 47,000.1 (Canada) 47,040.1 elswhere |
?? (?) |
| M |
75.5-81 |
4mm |
by prearrangement |
| N |
122.25-123 |
2.5mm |
by prearrangement |
| P |
134-141 |
2mm |
by prearrangement |
| R |
241-250 |
1.2mm |
by prearrangement |
| S |
Above 300 |
<1mm |
by prearrangement |
| L |
Light |
-- |
by prearrangement |
NOTES:
#1 - 903 was initially chosen over 902 because it allowed more commonly available xtals to be
used in the transverter. FCC part 15 devices must put out about 70 dB less energy on 901.999
as they as they are allowed on 902.001. Since these inexpensive devices hardly have multipole
interdigital filters, they meet spec by staying away from the edges of the band. In many
metropolitical areas there is as much as 10 dB difference between the noise floor at 902.1 vs
903.1 As as we get more wireless phones, VCR Rabbits, and wireless can openers, it's only
going to get worse. For serious work on 33cm we really should be looking at 902.010 MHz! Just
remember, most IF rigs are a lot easier to tune up to 145 MHz so you are on 903, that to tune
the IF rig down to 143 MHz for 902. - WA5VJB
Web site and all contents © Copyright VHFSouth 2005,
All rights reserved.
|
|