Antenna tuner for reception too? | RadioReference.com Forums
2009年3月29日 · I was planning on buying an antenna tuner yesterday with the radio and using a random wire antenna (with a balun) but the guy at HRO said I didn't need it for reception only for transmitting. So at his suggestion I bought a 75' roll of stranded copper and have it stuck in the center of a BNC/PL259 adapter in the HF antenna port on the rig.
Antenna tuner - RadioReference.com Forums
2009年8月20日 · Not sure why I was so oblivious to this but, Anyone who monitors HF (NON TRANSMIT). Should really look into getting an antenna tuner. For some reason I never thought having a tuner would do anything for receive. Big mistake on my part. I never really thought about it and it just didn't make sense to me to have one for receive only.
Antenna tuners: Where is best and why? - RadioReference.com …
2016年10月22日 · A tuner or coupler intended to be right at the antenna feedpoint is a little different animal than a typical LDG and couplers made by SGC or the Icom AH-4 and similar cover a very wide range and are intended to tune a whip or dipole over the entire HF range without any problems.
Antenna tuner, balanced or unbalanced? - RadioReference.com …
2015年7月14日 · This antenna has a good match on all bands 40 through 6m except 15 and with a tuner it works well on 80m and you get 15m back. Lots of choices on antennas fed with balanced line and I recommend some of the ARRL antenna books …
antenna tuner for VHF/UHF | RadioReference.com Forums
2016年12月18日 · On the VHF/UHF bands, antenna bandwidth is not as much of an issue. A 2 meter antenna with 7% SWR bandwidth (nominal bandwidth for a Yagi), will easily cover the whole 2 meter band with a reasonable SWR. So if the antenna is tuned properly, no tuner is needed. They do make tuners for VHF/UHF, like the MFJ-922, but reviews are very mixed. …
HF / Attic antenna questions | RadioReference.com Forums
2020年7月5日 · Page 11-2 Full Manual "The internal automatic antenna tuner automatically matches the transceiver to the antenna within the range of 16.7 ~ 150 Ω (SWR of less than 3:1)." Page 11-3 Full Manual "The optional AH-4 antenna tuner matches the IC-7300 to a long wire antenna more than 7 m/23 ft long (3.5 MHz and above)."
Center Fed Inverted V 'HF' Antenna - RadioReference.com Forums
2024年4月15日 · A random length antenna can have an impedance ranging from maybe 10 ohms to past 2500 ohms, way out of range for an LDG type tuner even at the antenna. Coax loss goes through the roof when operated under very high VSWR but 450 or 600 ohm line does not, so that is a way to address some problems.
Flexible HF whip antenna - RadioReference.com Forums
2012年7月7日 · For years I used a Icom AH4 tuner with a 17M Ham Stick, worked well including 80M. When using such a setup DO NOT use coax between the tuner and the antenna, use a insulated wire, a piece of insulated center conductor from RG-8 will work, or a piece of spark plug wire from a small engine shop.
Antenna for ICOM 7100? - RadioReference.com Forums
2021年10月25日 · The two antenna jacks on your radio, I believe correspond to HF/6m (1.8-54mhz) and 2m/70cm (144mhz and up). If you did have an antenna that covered 1.8-440mhz you would need a combiner to connect it to the HF and vhf/uhf inputs on your radio. However, unless you are desperate for space, no one is going to suggest you do that.
FlexRadio Systems has new "very smart" Antenna Tuner coming …
2021年4月22日 · The Tuner Genius XL (TGXL) has a planned general availability release for 3Q21 and will be available in both an SO2R and 1x3 antenna configurations. Fully integrated with the Power Genius XL RF amplifier, the Antenna Genius, and all FLEX-6000 series HF transceivers, the Tuner Genius XL can be operated fully automatic or in a manual mode.