220 mhz monoband HT?
Does anyone make a good one?
Nobody makes one, period. The best HT for 220 is the Kenwood tribander. 5w on 220/
Member: Backyard Engineering Group
Wouxon makes a really nice 2m/220 dual bander.
Originally Posted by K7JBQ
I've noticed these on eBay but who knows if they're any good:
I would not trust a seller who puts "Kenwood Yaesu" in the title to manipulate the keyword search.
Originally Posted by KC2SIZ
He actually put "Kenwood Yeasu" in the title. Which is yet another reason for not trusting him, AFAIC.
Originally Posted by K1FBI
A day without thermonuclear fusion
is like a day without sunshine.
Semper ubi sub ubi.
73 de Pat, K7KBN
CWO4 USNR Ret.
The 1.25 Meter Band(219 MHz =to= 220 MHz, 222 MHz =to= 225 MHz) is a very interesting band.
When in any R.F. environment you need at least a 1/2 wave clearance(in free space) for R.F. to pass through with little or
no attenuation. Waveguides work on this same principle.
However, for receiving antennas to work at their best, they need to be as long as one can make them without too
much pattern focusing(too high gain).
For the 006 Meter Band(050 MHz =to 054 MHz) you need 118 inches(9' 10") for a 1/2 wave clearance.
For the 002 Meter Band(144 MHz =to= 148 MHz) you need 41 inches(3' 05") for a 1/2 wave clearance.
For the 1.25 Meter Band(219 MHz =to= 220 MHz, 222 MHz =to= 225 MHz) you need 27 inches(2' 03") for a 1/2 wave clearance.
For the 0.70 Meter Band(420 MHz =to= 450 MHz) you need 14 inches(1' 02") for a 1/2 wave clearance.
For the 0.33 Meter Band(902 MHz =to= 928 MHz) you need 07 inches for a 1/2 wave clearance.
For the 0.23 Meter Band(1,240 MHz =to= 1,300 MHz) you need 05 inches for a 1/2 wave clearance.
When in a car, the 0.70 Meter Band is best. There is at least 14 inches(1' 02") vertical clearance there that is R.F. passive(windows).
When in a house, the 1.25 Meter Band is best. There is at least 27 inches(2' 03") vertical clearance there that is R.F. passive(windows).
When in the open, the 006 Meter Band is best. There is at least 118 inches(9' 10") vertical clearance there that is R.F. passive.
I did not include the 010 Meter Band or below. They really are considered non-local bands even though they could be used for local
communications when ionospheric propagation is not usable.
I hope this is helpful in some way to whoever/whomever needs to see it.
Yes, clearance is very important, especially if one has to use a parking garage, travel under low bridges, or has a high vehicle like an SUV. However, clearance has got nothing to do with frequency or wavelength.
Originally Posted by N3IFD
The formula for clearance = HEIGHT OF OBSTRUCTION - HEIGHT OF VEHICLE
Alinco DJ-V27T is widely available. Very nice single band 220MHz ht.
Originally Posted by KC2SIZ
Indeed. Thanks for the link.
Originally Posted by NI3B