Max, I added the 8 pole filter to my Corsair and noticed an immediate difference. The skirt selectivity is greatly improved. The passband tuning is much sharper: a little tweak of the PBT and adjacen
Hello, Ray, I have the 1220 with the amplifier. It is fun to build, but a little quirky. Some users report the need to connect extra internal ground wires to the power amp board. I had one problem: t
Here are some mods that I just put into my Paragon (I): If slow AGC is too fast for you, pull the IF/AF board and change C46 from 10 uf to 22 uf. Fast AGC is unaffected. If 22 uf makes it too slow, t
A strange problem with my 1220: When using repeater offsets, release the PTT and instead of going back to the receive frequency, the rig goes to the input (transmit frequency). Key the radio again an
Yes, the Scout has a meter lamp. Its plugged into a little grommet in the side of the meter. I added a 56 ohm resistor in series with mine to dim it down a little and prolong its life. A more clever
Gary, I used light aluminum "L" brackets attached to a 12 V computer type fan. The brackets are attached to the heat sink on my Paragon using aluminum foil tape. Not elegant, but easy to remove and n
My Scout came from the factory with a low dropout regulator. I think that it is a 2940 chip which drops out at 11 V. Is there a 10 V regulator with a lower dropout than that? 73,
Mark, et al,: I have used my Scout with a 7 amp hour gel cell battery and I have not had a problem running it for a couple of hours of casual or Field Day type operation. It is possible to buy indivi
Yes, this can be done and there are several inverters on the market. The pulse width modulator types are undoubtedly the most efficient. A lot of them are intended for the commercial or military mark
Here's something interesting: ICOM is showing a ne IC-703 on their web site. It appears that it is still under development, but it is interesting to compare specs with the Argo. The ICOM runs 10 W an
I think that the 2940 regulator needs 11 V minimum, but there are lots of places for voltage drop ahead of the regulator: The power cable, fuse and fuse holder, power switch, power connector, and the
Thanks for the info, Adam. I hope that Ten Tec will take advantage of the world commercial market, too. I recall that Paragons were sold to the U. S. government under a GSA contract. Fortunately, thi
Thanks to those who have been posting first impressions of the 516. At first I thought it was overpriced, but now I'm not so sure, when one compares it to the Argonaut 515 ($400) or the Argo II ($120
Check to see if there are any computer monitors running in or near the shack. Bring a portable receiver out to the pole to see if it is the cause. Check to see if there is a pattern to the noise as a
No, no, NO! Please DO NOT whack the pole with a sledge hammer. If there is any loose hardware or wiring it will come down ON YOUR HEAD. Plus, you will be liable for any damage you cause to the pole.
Here's a voltage boost board that will take in 9-12 V and put out 13.8 V at 3.6 amps. It looks nice, but I don't know the price. It can also convert 12V to 24V. http://www.abpco.com/High_Efficiency_S
Al, Check to see if there are trimmer capacitors that set the BFO/carrier oscillator offsets. When they get old they can take shifts. I had this happen on my Paragon. Shoot them with contact cleaner
Yes, there used to be a test in MIL-STD-461 (or maybe an ARINC standard) for testing EMC in military electronics. It was called the "buzzing relay test". A relay was rigged as a buzzer one of its lea
I would like to operate some of the digital modes when I operate portable with my Scout. I have a Kantronics "KAM", but no notebook computer. Is there a lower cost, smaller alternative to a notebook
Malcolm, The display on the Corsair uses a "preset" counter. Band information from the band switch is sent through an array of diodes to the counter logic. There might be an open wire or open diode i