Usually I would put these directly on the site instead of a link, but this calculator is rather cool. It is designed for you to select your coax, then enter your desired frequency and length. It will calculate your dB loss! Try it out - - - http://www.timesmicrowave.com/cgi-bin/calculate.pl
Since the release of the VX-7 there has been a great deal of talk about it. There are a few that are faithful to ICOM and Kenwood, so in all fairness below find a comparison chart for 4 very popular multi-band radios. All specifications were gathered from the manufactures web-sites.
Radios included in this comparison:
Yaesu VX-5R
Yaesu VX-7R
Kenwood TH-F6A
ICOM IC-T90.
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|
Feature |
VX-5R |
VX-7R |
TH-F6A |
IC-T90 |
|
| Street Price (as of Feb 2003) |
$209 | $289 | $329 | $249.95 | |
|
RX Range |
0.5 – 16 Mhz |
0.5 – 999 Mhz |
0.01–1300Mhz |
0.495 – 999.990 Mhz |
|
|
6M TX |
5 Watts |
5 / 1 Watt (FM/AM) |
5 Watts |
||
|
2M TX |
5 Watts |
5 Watts |
5 Watts |
5 Watts |
|
|
220Mhz TX |
1.0 Watts |
5 Watts |
|||
|
440Mhz TX |
4.5 Watts |
5 Watts |
5 Watts |
5 Watts |
|
|
Emission Types |
F2 / F3 |
A3 / F2 / F3 |
F2 / F3 |
F2 / F3 |
|
|
Number of Simultaneous bands |
1 |
2 |
2 |
1 |
|
|
Priority Channel |
1 – Any of 220 |
1 |
1 |
1 |
|
|
Backlight |
Red |
Amber |
Orange/Grn/Red |
||
|
Channels |
220 |
900 |
435 |
555 |
|
|
Alpha Tags |
8 Characters |
8 Characters |
8 Characters |
8 Characters |
|
|
Battery |
1100ma Li-Ion |
1300ma Li-Ion |
1550ma Li-Ion |
1300ma Li-Ion |
|
|
Battery Life (avg) |
6 to 12 Hours |
5 to 15 Hours |
6 to 20 Hours |
6 Hours |
|
|
Alkaline Pack |
2 AA Cells |
4 AA Cells |
4 AA Cells |
2 AA Cells |
|
|
Computer Programmable |
ADMS/EVE/VX5 Commander |
ADMS (TBR) |
Kenwood |
CS-T90A |
|
|
Antenna Connector |
SMA |
SMA |
SMA |
SMA |
|
|
Weight |
9.0 oz |
9.2 oz |
8.8 oz |
8.5 oz |
|
|
Charge time |
6 Hrs |
6 Hrs |
|||
|
Colors Available |
Black/Silver |
Silver/Black |
Black |
Black |
|
|
Water Resistance |
Minimal |
30 minutes @ 3 feet |
Minimal |
Minimal |
|
|
Audio Output |
400mW @ 8ohm |
200mW @ 7.2 Volts 400mW @ 13.8 Volts |
200mW @ 8ohm |
Oh, the TARC Fest are so great....
It's time to build that antenna that you have always wanted. Yup, that Yagi! To get you started, use this nice little calculator to figure out a few of the dimensions. Now the matching is up to you. Get creative!