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8

Yes, you only need a USB2 A to B cable. The IC-7300 already has an integrated sound card, for audio signal transmission, and an integrated serial port for remote control, both of which are connected to computer using the USB2 B port at the back of the radio. In some rare cases, you might also want a Icom CT-17 compatible interface cable. Namely, the ...


6

I went to the Icom America Headquarters office in Kirkland to look over the wall of history of a sampling of their amateur radio gear. This model shown below in the photo is the closest in appearance to the photo posted by the OP. It is an Icom IC-F3, first released in 1997. The OP's image of the HT appears to be a derivative of the IC-F3 called the IC-...


6

It's all of the above: an RF ground a 12 V power ground a lightning ground, for what it's worth a chassis ground to prevent "buzz" on the chassis if your shack 0V is not earthed The manual says to connect it to a ground rod, to prevent TVI, BCI. If you used an end-fed antenna without a ground or counterpoise, the mains wiring (through your power supply) ...


4

As long as you have in fact a line input and not a microphone input on your sound card, that is an appropriate connection. If you notice hum or distortion in the recorded audio, you may need to use an audio isolation transformer. (There is no need for one unless you find it necessary.)


4

The 1750 tone burst is widely used in European the same way that CTCSS/PL and DCS is used for repeater access in the US. I used tone burst exclusively when living in Germany. Tone burst never caught on in the US.


4

A new IC-7300 comes with the power harness that plugs into the radio. The other end is connectorless so you can adapt it to your power supply using lugs, PowerPoles, stripped ends, etc.


4

The usability of the Baofeng (or any radio with > 1Hz frequency step) will depend on the frequency and mode that you are using. If you use a 12.5kHz frequency step size you will never be able to tune to 435.345 MHz (FM mode) frequency, for example. You have to change your frequency step size to 5 kHz or 2.5 kHz to tune it. Notice though that the Baofeng has ...


4

What do you mean by "regular repeaters"? Do you mean analog repeaters? I haven't found a list of analog repeaters built into the ID-51A, no. But I found this site that will give you the nearest several hundred repeaters to a given location (enter your city/state and click the button). You get them in CSV format which maybe is used by Icom's programming ...


4

According to the user manual published here, page 11, the receiver antenna IN and antenna OUT connectors are located before the TX/RX antenna switching relay. Something like this: Transmitter -------------------- Relay ---- PL connector | Rcv - RX-IN - Jumper - RX-OUT ----- So you can connect a preamplifier between RX-...


4

At distances of 150 to 400 kilometers, you will largely be relying on reflection of your signal by the ionosphere. In the winter the atmosphere receives less solar radiation and the ionosphere's index of refraction is less. This increases the critical frequency in the winter, putting the receiving station in the skip zone unless you use a lower frequency. ...


3

Regarding your original question, according to page 5-6 of the IC-7100 Advanced Instructions document, to receive "narrow" FM of 2.5 kHz deviation, select FILTER2 or FILTER3.


3

Is case anyone is curious, yes...it does. Simply push the middle button and a repeater list comes up. It is simple to set up, as can be seen from this HOWTO guide http://www.dstarinfo.com/Data/Sites/1/GalleryImages/FullSizeImages/id-51-beginner.pdf


3

Since you say that both radios have the exact same problem, I think we can more or less rule out an outright problem with the radio itself. Since you say that you used to be able to hit this repeater easily, I think we can rule out that you would be too far away from the repeater for the antenna that you are using. It also seems unlikely that both radios ...


3

Assuming your question is literally what kind of cable and not what connectors do I need, the answer is: it doesn't matter. Use what is at hand, or what will lay nicely on your desk, or what looks good, or what's cheap at the store, as long as it has two (for a key) or three (for a paddle) conductors. A CW key or paddle is just a switch or pair of switches, ...


3

The filtering in an SDR is nearly always superior to the filtering in any analog receiver. This is because it's very inexpensive to implement a digital filter which can rapidly approach ideal behavior, whereas good analog filters are quite expensive. The only analog filtering required by an SDR is that required to avoid aliasing and overload. Since these ...


2

I always use stereo patch cables for connecting my paddles. The have the right number of conductors, three. Almost all stereo patch cables have two conductors and braided shield which is your third conductor. This works nicely with the standard 1/4 inch stereo phone plug expected by the 718. You can go down to Radio Shack (before all the stores close) or ...


2

The inactivity timeout is controlled by the auto-power-off menu setting where you can designate the number of minutes, such as 30 minutes, for the radio to be switched off. But, this is tantamount to turning the radio off just as if you had pushed (and, held) the power button on the front panel. It is not some "sleep mode" where functions are still active, ...


2

The ID-51A Plus behaves differently. Near repeater does NOT work as documented. I am hacking at it to try to figure it out. Following the instructions on the above link provides nothing. The to: is underlined and you cannot use the up down to go to the field to reset it. Basically you are stuck in a catch where a reset is required to get you out. If ...


2

I have just joined so have to answer instead of commenting (not enough reputation yet). I have one of these receivers and know a little about them (I have to say it performs excellently and is very nice to use). They are now fairly old so are a bit prone to dry solder joints and dry caps. There are quite a few plugs/ connectors that can occasionally give ...


2

As your Icom is 'brand new' as you described it, I would strongly recommend to contact Icom support Technical Support Department Dedicated number 800-253-1498 Monday - Friday 4AM to 5PM PST They are there to help you. Just in case you are wondering: I did not find a number for Icom support in Argentina (based on your call) nor did I find a ...


2

If you don't find a solution based on modifying the radio, this is a reasonable use for two diplexers. You can, in principle, hook them up two different ways: simulate this circuit – Schematic created using CircuitLab These two configurations have in theory the same requirements for the two diplexers — one which separates 30− and 50+ MHz and ...


2

The ICOM gateway terminal mode is a unique mode. It allows you to configure the radio to use the radio, tethered to a computer through a USB cable, to route the communications through the computer, out to the Internet, to access a remote gateway. In this mode, the RF signal of the radio is not a factor since all communications are actually going through the ...


2

A good approach to troubleshooting problems is to simplify them until there's a minimal broken case. The program you have here is complex and there are many things that could be wrong. If the radios are connected just by a cable, the constellation in your screenshot is far too noisy. That suggests there's a problem prior to the equalizer. The periodic ...


2

It's merely a bolt through the case. Under normal operation it shouldn't carry any current, so insofar as grounds come in neatly categorized "kinds", I'd say it's for safety. It is not part of the RF system, or shouldn't be under normal circumstances. If the feedline currents aren't balanced, then this ground connection would be one possible path for those ...


2

I think it's highly doubtful you could break anything by turning those knobs. At worst, you just end up with horrible clipping and distortion as you experienced. The IC-7300 is a direct-sampling SDR. It's possible you found some software bug. Or it could just be that the AGC wasn't on long enough to adjust the gain back down. Complicating matters is that ...


1

The manual for this radio is particularly unhelpful on this point. So, at a guess... For most radios with this style jack, one hole is for the microphone and the other is for the speaker. The speaker jack could be either stereo or mono, but adapters you listed both use three ring plugs, so it isn't mono. If it is stereo, you could plug in a regular ...


1

Your presumption about how it functions is correct. The skip time is a global setting for all timed skip operations. It is set from the main Menu. If you wish to skip a channel for the timed period set from the main menu, when the scan stops on the desired frequency, press the Quick key. Then use the up/down arrows to select Temporary Skip. Finally press ...


1

No. The D-74 cannot act as an access point/gateway.


1

I don't have one of these radios, but as a matter of interpreting the text of the manual, page 8 says that one of the “programmable function key” functions is: OUTPUT POWER SELECTION KEY Select the transmit output power temporarily or permanently, depending on the pre-setting. • Ask your dealer for the output power level for each selection From ...


1

Can't speak from experience with this radio, but I looked at the manual and it says about the option that: Squelch/ATT select      FUNC — SQLTYP Sets to use the S-Meter Squelch or the Attenuator function for the [SQL] control. The way I would read this is that it does not change the squelch behavior but controls whether the knob changes the squelch ...


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