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Anyone know the release date for this AMP? Seems like it has been in the catalogs but not yet available for 2 years now.

I have picked up an SB200. I changed out the Caps on the power supply board and changed the RF input connector over to a normal Coax connector, and installed the Softkey. When I got the amp, the power supply board was dark (burned) in the area of the 30k resistors. It seems that changing...

I picked up a used 718. Question on the power output. I've got the mic gain set at about 75% on SSB and get good movement on the ALC meter. If I whistle in the mic I see the full 100 watts out. However while speaking into the mic, peaks barely hit 50w and average is down around 20. On...

I've got an 840 where the frequency display just dropped a digit. Obviously the display normally would show 7.000.00 mhz, but now is showing 7.000.0 The last digit just went out. There is no flashing of the display. The radio seems to work fine otherwise. The digit did not gradually dim/fade...

I'd like to use a stand off mount on the side of my tower to install a small 2 meter/70 cm vertical antenna. Is there any minimum distance the mount should stand off from the tower to avoid interference and messing up the SWR too much? Is 3 feet enough or does it have to be more? Thanks

Is anyone aware of any studies on effect of antenna height on local (<200 miles) receive and transmit? For example, station A has an antenna 30 ft up. He receives station B, 40 miles away with 4 s-units. If station A raises his antenna to 40 ft, would there be any change in how well he...

Take your basic 4 element yagi. It can be mounted Vertical or Horizontal for the desired polarization. What do you get if antenna is mounted at a 45 degree angle, splitting the difference between vertical and horizontal?

Does anyone have suggestions on how to tune the SWR on a Gizmotchy? I've got a very nice 1.3:1 on CH1 but it jumps up to around 2.1:1 on CH 40. Since I spend all my time on 36 to 40+, I'd rather have the low point tuned to CH40 not to CH1. I've jacked around with the Gamma length a bit, and...

I am aware that Jogunn publishes garbage for the gain and performance numbers. However I am interested in how their V Series antenna works. What do they mean when they say this antenna is dual polarity or circular polarity? Can it really talk to someone is transmitting horizontal and someone...

I'm thinking of putting up a 3 element beam on a Rohn 25 type tower. What is the rule of thumb for how much of the mast pole should stick out of the top of the tower? Should it be kept as short as possible, or is there any problem with having the pole 10ft+ above the top of the tower? I...

I'm going to be putting up a 30ft Rohn tower. Antenna will be a 3 element. I'm going to attach it about 20 / 25ft up to the gable of the house. Question, how much of a concrete base do I need to put this thing in? I see people quoting a cubic yard of concrete, but that seems to be for free...

I just got a used 25G tower. 2 - 10ft sections, plus the torpedo top section. Currently it has no provisions for mounting a rotor. Can someone point recommendations/instructions for installing a rotor to turn a small load beam. (no more than 9 ft boom). For something this small is a...

I'll be moving soon and am thinking about what antenna to put up at the new shack. I'll have access to a 40 ft tower. I can put back up my old 5/8w Maco or was thinking of going with something like the Vector 4000. I have no complaints with the Maco, but I'm not sure what I'm missing out in...

Like some others I think I might be victim of an amp damaged in shipment. (I'd like to see the best in people and hope the guy wouldn't have sold me a bad amp) Anyway here is my issue: I've replaced all 4 tubes with a never used, matched set. At Standby, switch in HV, it reads 1700 volts...

I fired up my radio for the first time in a year or two and I noticed that on both the radio's built in power meter, as well as on my external meter, my power output is only about half of what it should be. I then checked the SWR and noticed it to be way up from what I remember it being back in...

I've built myself a 2 element rectangle moxon out of alumining tubing. SWR is a pretty decent 1.3:1, however it almost always under performs my 5/8 wave Maco. The Maco is about 15 feet higher up, but for DX I wouldn't expect that to matter so much. On the receiving end the Moxon is...

So we know there is 1/4 wave, 1/2 and 5/8 wave vertical/omni antennas, with the longer antenna giving better performance. It seems that all directional antennas are built on roughly a half wave design with element lengths in the neighborhood of 18 feet. Question: 1. Has any one ever...

Couple of questions about mounting a dipole antenna... Is there a minimum mounting height for a dipole? Obviously with any antenna the higher it is the better, but outside of this, is there a minimum height for it to be mounted so that it radiates properly and/or the ground doesn't...

I am thinking about getting a 4 element beam to add some more punch above what I have today with my Maco 5/8 vertical. 1. Due to a number of low hanging trees, I can not put a beam outside, it would have to go in the attic. Would a beam in the Attic offer a significant improvement over 5/8...

Im hoping someone can help me out. My Ranger 2950 just died. Was working fine for years, and turned it on last night and got nothing. Well, practically nothing. The LCD on the front is totally dead. Nothing happens when I key the mic. But when it is turned on I can hear a very faint white...