Archive for the ‘vhf frequency’ Category
Wednesday, May 19th, 2010
than broadcasts in the UHF (ultrahigh frequency) range? (hint: UHF has higher frequencies than VHF)
Freespace propagation equations:
attenuation = 10 log (Pt/Pr)
Pr/Pt = ArAt/(d²?²)
valid for d>>2a²/? where a is the largest dimension of either antenna
Pr, Pt: power in the receiver and transmitter, respectively
Ar, At: effective area of the recieving and ...
Posted in vhf frequency | 1 Comment »
Tuesday, May 18th, 2010
A Thames endcap leads us onto a Bertie Basset-era Scottish TV closedown, including a sarcastic Liz Kristiansen, an offer of free tickets for some accented nonentity's televisual vehicle they're filming in Edinburgh, a look at Monday's schedule, a ILR update (including a reminder about Radio Clyde's new VHF frequency), a ...
Posted in vhf frequency | 25 Comments »
Saturday, May 15th, 2010
What range does analog signals fit into?
UHF (Ultrahigh frequency): 300-3,000 Megahertz
VHF (Very High Frequency): 30-300 Megahertz
Analog signals comprise TV channels 2-69 which fall into both the VHF and UHF category.
Posted in vhf frequency | 1 Comment »
Wednesday, May 12th, 2010
i am wondering because there is this radio that operates on these frequencies that is for sale. I am looking into buying one, but am wondering what i need in order to be able to transmit on these channels. VHF 136-174MHz, UHF 403-470, 450-512MHz. Thanks for your help!
These are the ...
Posted in vhf frequency | 1 Comment »
Tuesday, May 11th, 2010
Here is the portable ops team from HADARC - the Hornsby and Districts Amateur Radio Club in Sydney, New South Wales. We camped out on Mount Tomah in the Blue Mountains (Friday night, Saturday all day and Sunday until the afternoon). The idea was to make as many contacts as ...
Posted in vhf frequency | 2 Comments »
Monday, May 10th, 2010
I have my cheap portable with bad reception from my employer, i found some sweet radios that have higher wattage and are waterproof etc. I need to know how whould i go about programing my radio that i want to buy to the companys frequency. How would i find the ...
Posted in vhf frequency | 1 Comment »
Saturday, May 8th, 2010
Pic controlling the PLL of ICOM 02AT resulting to a Frequency Hopping 2Meter VHF Jammer. Other parts on the controller board is for phone line and FSK remote programming over the air.Duration : 0:0:23
Posted in vhf frequency | 3 Comments »
Friday, May 7th, 2010
I want to purchase a wireless microphone for church use, which is better than the orther VHF or UHF mic?
I would get UHF, they usually have less interference.
I have four handhelds and four lapels of this type at my church and I have had no problems:
http://www.zzounds.com/item--SHUPGX24SM58
http://www.zzounds.com/item--SHUPGX1493
Posted in vhf frequency | 2 Comments »
Friday, May 7th, 2010
Adjusting the Frequency on the XCOM VHF Aircraft RadioDuration : 0:0:47
Posted in vhf frequency | No Comments »
Friday, May 7th, 2010
If they used a dual band radio, only the other radios on the side would hear the radio traffic, by using a vhf to UHF repeater it allows planes with only vhf or UHF radios to communicate with the tower and other planes with either UHF or vhf radios to ...
Posted in vhf frequency | 1 Comment »