Amplifier swa connection diagram

Even outside the city, we don’t want to part with the achievements of scientific and technological progress, which is why almost every dacha has a TV. If you are far from the tower and to get a clear image on the screen without interference, you need an antenna with an amplifier, which can be difficult to choose for a number of reasons.

Unlike TV reception in a city or at a short distance from a tower, as you move away from them, the intensity of the magnetic field of the television signal decreases, which is affected by the absorption of waves by the walls of buildings. Within one populated area, this factor is not so noticeable, but the distance from television towers can be significant, then a directional antenna is needed, and you have to resort to additional signal amplification.

The role of active wave receivers is not exaggerated. In addition to being far from a TV tower, there are two other situations when an antenna is needed for a TV with an amplifier:

when you have a high density of obstacles. For example, in a house located near a forest, where tree crowns, leaves and humidity make it difficult for the antenna to receive a signal;
when the signal from one catcher is received by several televisions at once. The signal inevitably weakens during such “analysis”, and you will need to increase its level in advance.

Fortunately, amplifiers in antenna systems (even those that have been “hanging” for many years, the creators of which did not even suspect that there would be “digital” in our country) cope well with digital signals if they operate under normal conditions. Let's find out more about them.

Reasons for a weak signal

The digital signal transmitted by the repeater may be too weak to be received for the following reasons:

Large distance to the transmission tower. The same “inverse square law” applies to radio waves in the UHF range on which digital television broadcasts, as for any other type of electromagnetic radiation.
Absorption of waves by the atmosphere. The air itself is practically radio transparent, but dust, fog, and moisture can scatter and reflect the signal.
Obstacles in the path of radio waves. UHF broadcasting is received in the line of sight zone, the waves practically do not bend around obstacles. Therefore, if there is some object opaque to radio waves between the repeater and the receiving antenna (buildings, hills, a forest of tall trees), at best the signal will be weakened. This is more appropriate in cases where indoor antennas are used: any walls, even thin ones, absorb electromagnetic waves.
Only reflected signals are received. If there is an object that screens radio waves on the direct line between the antenna and the repeater, you will only have to receive the television signal that will be reflected from other objects (for example, neighboring buildings). Such radiation is many times weaker than that initially broadcast from a television tower.
Poor quality receiving equipment: antenna with low sensitivity, cable with high resistance, etc.

In a word, there can be a lot of reasons. In most cases, influencing them is difficult or even impossible. Therefore, in order to watch TV without freezing and scattering of the picture, you need to choose the right way to improve reception.

Conclusion

Digital television already provides the opportunity to watch TV programs in high definition with minimal hassle and capital costs. But to definitely answer the question “Which home antenna for digital TV is better?” - impossible. You can only expect 100% success if you hire a professional installer who, using his own experience and measurements, will select the right antenna kit for your location. Before making a decision and purchasing a wave receiver, it is also worth looking at the roofs of surrounding buildings and taking advantage of the experience of residents who are already adopting “digital”.

Signal amplification methods

TV antenna signal amplification is achieved in 5 ways:

Use a higher quality TV antenna than the one you have. Depending on the design, a few decibels of gain can be gained here. Check if your antenna is selected correctly.
Precise orientation. Almost all devices operating in the UHF range have a clearly oriented diagram and most efficiently receive a signal from one direction. Even a rotation of 5–10 degrees can give a serious increase in signal strength.
Replace cable. If the distance between the antenna and the television receiver is too large, the lion's share of the received signal power is lost due to the resistance of the conductor. This can be avoided by using a feeder with reduced resistance (for example, with a central core made of pure copper rather than copper-plated steel).
Move the TV closer to the antenna. The cable becomes shorter: in some cases, even 2–3 meters can be decisive. Reducing the feeder length allows you to avoid unnecessary signal power losses.
Use an antenna amplifier.

We will dwell on the last option in detail, since it often turns out to be decisive.

Assessing the performance of the antenna

Let's try to make a more correct comparison by connecting through the splitter input.
Well, in addition, for clarity, let’s add the number of participants List of antennas taking part in the comparison:

1. External antenna Funke BM 4551 external long-range,

declared gain, from some sources (bought at Yulmart), up to 16dB

2. There is an old UHF loop antenna, from TV Electronica 313d, I must say, despite its simplicity, it’s a very good antenna, that’s why it’s been preserved

3. I went to the store and bought for comparison in the review one of the cheapest, such as a symmetrical vibrator (100% the most purchased by pensioners, due to the low price).

I will carry out all “measurements” at one point, located as close as possible to the external antenna - its location was experimentally selected based on the maximum signal, so we can say that the conditions are approximately the same

So, we have already seen the signal level from the external antenna at 95% (at the time of current measurements it showed 94%), we take it as a standard. All comparisons are made by connecting antennas to the input on the splitter, to which an external antenna is usually connected.

Loop antenna, from Electronics 82% on 39 multiplex and 66% on 60

Budget with “horns” - 62%/38% (on the verge of losing the broadcast)

Double square - 92% on both multiplexes, about a couple of percent less than the external one

Out of curiosity, I decided to check the work of the reflector, which is easy to make from any metal mesh, plate or even foil... It REALLY works noticeably! The level rose to 96%!, which is even higher than the stationary one, with a declared gain of 11dB.

The most interesting thing is the object that I used as a reflector!

There was no foil in the house; the only thing available with a metal surface of the required size was... a laptop cover (I have a metal case). But the main thing is the result! It’s clear that I’m not going to “tie” the laptop to the antenna, and its amplification is enough for me without a reflector

Advantages and disadvantages of connecting an amplifier

Connecting an amplifier to a TV antenna promises tangible benefits:

a sharp increase in signal power even when using an antenna of the same design;
no more worrying about where to place your TV. This is especially noticeable if an active antenna is used, in which the amplifier board is part of the structure. In this case, the power of the signal transmitted to the TV is so great that even a whole bay of cable will not become a noticeable obstacle. When using an external amplifier, it will need to be placed closer to the antenna, but the gain in signal power and quality will still be noticeable.

If you intend to connect an amplifier at home, then you need to keep in mind possible disadvantages and limitations:

The complexity and cost of equipment is increasing. Even if you use the simplest amplification unit that can be soldered, you will need new elements: fasteners, connectors, power supply, special tools, etc. But if you like to work with your hands, this item will not be a problem.
You will need to take care of nutrition. Any amplifier, in fact, turns the incoming signal into its exact copy, which has greater power. Additional energy must come from somewhere - you need an external adapter that connects to the mains. A set-top box or TV that has the function of an active antenna socket with voltage transmission through the feeder is suitable as a power source.
The use of amplification is not appropriate in all cases. To create a powerful copy, you need a high-quality original, and if the TV signal is clogged with noise and interference, then the amplifier will boost them too. As a result, even filters and tuners will not always be able to separate the useful signal from the spurious ones.
Over-amplification will have the opposite effect. If too strong a signal is received at the antenna input, the equipment will consider it non-existent and refuse to play. Therefore, in the area where reliable reception is possible with a passive antenna, you should either refrain from using an amplifier or lower the power factor (if the model has a regulator).

Thus, in order for a TV antenna amplifier to be useful, it requires both a high-quality and a weak signal.

Location of T2 transmitters in Ukraine.

The table provides information:

Locations of T2 transmitters.
average signal coverage radius.
numbers of television channels of digital packages (multiplexes).

№	Transmitter location		Average coverage radius, km	Digital packages
	Transmitter location			MX1	MX2	MX3	MX5
	Name of the locality	Placement address		TV channel numbers
Autonomous Republic of Crimea
1	Alupka	st. Lenina, 64	25	44	43	21	30
2	Alushta	st. Sergeeva-Tsensky, 13	20	59	30	32	56
3	Belogorsk	st. Nizhnegorskaya, 33a	20	36	37	48	51
4	Chapaevka	Sovetsky district	50	52	47	48	49
5	Dzhankoy	st. Extreme, 20	30	24	38	30	28
6	Evpatoria	Razdolnenskoe highway, 17	30	35	23	32	29
7	Feodosia	Simferopolskoe highway, 45a	25	27	26	30	36
8	Sevastopol	Cape Sarych (smt. Foros)	30	44	43	21	49
9	Annovka	Belogorsky district	35	32	41	48	22
10	Kerch	st. Ordzhonikidze, 144	55	41	60	43	24
11	Kirovskoe	Chernomorsky district	40	24	21	40	44
12	Krasnoperekopsk	st. Tavricheskaya, 105	50	24	31	43	53
13	Parthenite	st. Partenitskaya, 16a	25	27	26	37	48
14	Sevastopol	Ave. Pobedy, 96 (Vorontsova Gora)	50	52	47	40	30
15	Factory	Leninsky district	30	27	26	30	32
16	Zander	Vostochnoye highway, 33	25	61	49	32	60
17	Simferopol	st. Studencheskaya, 14	50	36	37	58	51
18	Yalta	Yuzhnoberezhnoe Highway, 55	25	35	26	37	48
Vinnytsia region
19	Balanovka	Bershad district	65	35	53	54	51
20	Pogrebishche	st. Kotsyubynskogo, 23	25	36	32	29	34
21	Vinnitsa	st. Maksimovicha, 23	80	39	32	31	49
22	Volodymyrka	Shargorod district	45	27	53	64	51
23	Yampol	st. Chernyakhovsky, 2	30	38	34	64	51
Volyn region
24	Gorokhov	st. Vatutina, 30a	35	58	57	40	52
25	Kovel	st. Varshavskaya, 5	70	44	27	59	52
26	Lyubeshov	st. Lesnaya, 3	30	25	62	49	55
27	Podgaitsy	Lutsk district	40	43	57	28	26
28	Novovolynsk	st. Pionerskaya, 6	25	26	31	48	63
29	Shatsk	st. 50 years of Victory, 1-b	30	22	31	41	28
Dnepropetrovsk region
30	Dnepropetrovsk	st. Television, 3	65	26	35	25	40
31	Dmukhailovka	Magdalinovsky district	25	50	38	52	33
32	Krivoy Rog	st. Television, 8a	65	41	51	54	38
33	Mogilev	Tsarichansky district	25	39	42	23	32
34	Nikopol	st. Karl Liebknecht, 113a	35	29	34	42	40
35	Ordzhonikidze	st. Telmana, 11a	30	30	44	42	47
36	Eagles	Pokrovsky district	35	37	21	36	31
37	Pavlograd	st. Kharkovskaya, 17a	25	28	22	48	61
38	Pereshchepino	st. Shevchenka, 126-b	30	28	38	23	32
39	Nikolaevka	Petropavlovsky district	35	49	33	25	40
40	Volnogorsk	st. Lenina, 38-A	30	36	30	31	33
41	Yellow Waters	Lenin Square, 5	30	48	21	47	49
Donetsk region
42	Kramatorsk	st. Kirova, 699-a (RTS Andreevka)	60	21	42	33	38
43	Artemovsk	st. Rosa Luxemburg, 54	25	50	42	35	52
44	Donetsk	st. Infantry, 4a	110	56	58	51	29
45	Konstantinovka	st. Demeshchenko, 116	25	50	42	35	47
46	Krasnoarmeysk	st. Dnepropetrovskaya, 1	30	43	48	36	63
47	Mariupol	st. Klenovaya Balka, 3	60	39	42	34	24
48	Torez	st. Chernyshevsky, 15	35	53	27	33	52
Zhytomyr Oblast
49	Andreevka	Chernyakhovsky district	65	50	40	43	42
50	Berdichev	st. Lenina, 78	45	27	35	25	23
51	Brusilov	st. Lermontova, 171	25	33	34	39	38
52	Kozhukhovka	Korostensky district	30	32	40	36	26
53	Yurovka	Malinsky district	30	33	27	22	37
54	Novograd-Volynsky	st. Kuibysheva, 14	30	32	21	31	35
55	Olevsk	st. Svyato-Nikolaevskaya, 146	60	51	52	53	43
56	Oak Guy	Ovrutsky district	55	50	52	53	34
57	Kotlyarka	Popelnyansky district	35	21	28	22	23
Transcarpathian region
58	Khust	With. Rokosovo (Mount Tovsta)	60	39	53	56	61
59	Mukachevo	Mount Pavlova	20	39	53	56	55
60	Rakhiv	Mount Terentin	30	55	33	60	61
61	Svalyava	Mount Kichera	25	39	53	44	40
62	Uzhgorod	st. Krymskaya, 24a	25	39	53	56	36
63	Great Berezny	Mount Yavornik	20	39	53	56	55
Zaporozhye region
64	Berdyansk	st. Rudenka, 4-a	35	30	35	34	43
65	Kuibyshevo	st. Lenina, 1-v (RTS Kamysh Zarya)	65	33	32	36	53
66	Melitopol	Ave. B. Khmelnitsky, 88/4	70	33	26	28	50
67	Orekhov	st. Stepnaya, 25	35	41	35	39	42
68	Zaporozhye	st. Matrosova, 24-a	55	43	31	49	57
Ivano-Frankivsk region
69	Debeslavtsy	Kolomyia district	20	27	51	30	39
70	Malaya Turya	Dolinsky district	30	35	57	31	24
71	Ivano-Frankivsk	st. Chornovola, 19	55	42	41	31	58
72	Mykulychyn	Yaremche City Council	20	35	49	31	39
Kyiv region
73	Berezan	st. Lenina, 37	35	33	27	21	36
74	White church	st. Tarashchanskaya, 196	30	56	58	57	59
75	Dybintsy	Boguslavsky district	40	48	30	60	53
76	Kagarlyk	RRS CTE URRT tower	35	33	36	57	23
77	Kyiv	st. Dorogozhitskaya, 10	110	26	31	49	29
78	Volodarka	st. Mira, 221a	40	33	53	22	50
Kirovograd region
79	Kirovograd	st. Sadovaya, 88	65	49	53	22	47
80	Novoarkhangelsk	Slavy street, 153	40	35	30	29	53
81	Novomirgorod	st. Lenina, 2	25	26	32	23	25
82	Novoukrainka	st. Metelkova, 53	35	36	61	52	57
83	Alexandria	st. Pakhomenka, 2	45	40	38	31	52
84	Installation	st. Pushkina, 43	35	50	37	52	23
Lugansk region
85	Belovodsk	RTS tower	35	32	52	25	34
86	Chernukhino	Perevalsky district	35	44	42	23	62
87	Lugansk	st. Demekhina, 25	65	32	60	40	34
88	Lisichansk	Ave. Lenina, 161a	30	54	53	35	63
89	Popasnaya	st. Pershotravneva, 152	35	41	42	23	36
90	Rovenki	st. Vygonnaya, 22	70	32	55	40	22
91	Starobelsk	With. Podgorovka, RTS	65	32	55	62	58
92	Pine	Svatovsky district	25	32	37	25	47
93	Zorinovka	Melovsky district	30	24	52	25	31
Lviv region
94	Brody	st. Green, 19	35	21	57	35	50
95	Lviv	st. High Castle, 9	50	22	28	40	33
96	New Razdol	lane Pridorozhny, 18	35	64	47	30	42
97	Pidbuzh	Drogobitsky district	35	39	36	51	50
Nikolaevkskaya area
98	Bereznegovatoe	st. Sports, 30-A	30	33	27	31	26
99	Nikolaev	Lenina Ave., 24-r	65	34	58	39	48
100	New Bug	maid. Wide area, 10a	30	21	42	22	62
101	Pervomaisk	Podgorodnyanskoe highway, 13	55	50	28	56	59
102	Voznesensk	st. Timiryazeva, 175	45	49	25	51	27
Odessa region
103	Viktorovka	Berezovsky district	35	38	25	52	57
104	Ishmael	st. Zheleznyakova, 260a	35	21	40	23	39
105	Kamenskoye	Artsizsky district	50	22	40	55	27
106	Westerners	Kotovsky district	65	62	43	54	40
107	Kovbasova Polyana	Savransky district	35	35	30	54	37
108	Nikolaevka	Ovidiopolsky district	30	25	33	55	37
109	Odessa	dor. Fontanskaya, 3	65	43	32	39	23
110	Sarata	st. Melnichnaya, 1b	35	25	40	55	37
111	Zhovten	Shiryaevsky district	65	35	41	47	33
Poltava region
112	Gadyach	pl. Sobornaya, 65a	25	26	39	34	31
113	Comb	st. Gorodishchenskaya, 142	35	41	42	23	30
114	Iskrovka	Chutovsky district	40	26	63	34	44
115	Kobelyaki	st. Poltavskaya, 29a	30	50	38	52	30
116	Krasnogorovka	Velikobagachansky district	65	26	37	41	51
117	Kremenchuk	st. Kerchenskaya, 7a	60	39	42	43	59
118	Lokhvitsa	st. Lenina, 104-a	30	50	42	41	49
119	Lubny	st. Grushevsky, 27	35	52	24	40	29
120	Coppices	Zinkovsky district	30	52	29	48	40
121	Poltava	Pershotravnevy Ave., (Pervomaisky) 26a	40	31	38	49	25
Rovenskaya region
122	Antopol	Rivne district	65	38	42	40	33
123	Dubrovitsa	st. Zheleznodorozhnaya, 7-i	35	54	43	55	47
124	Kuznetsovsk	st. Khometskaya, 1	40	25	22	49	41
Sumy region
125	Belopole	st. May 1, 15	60	55	42	51	33
126	Ovlashi	Romensky district	30	36	42	21	25
127	Shostka	st. Korotchenko, 88	60	24	59	58	60
128	Sumy	st. Skryabina, 3	30	36	63	51	53
129	Trostyanets	st. Neskuchanskaya, 50	60	54	49	51	30
Ternopil region
130	Berezhany	Zalissya st., 7	35	57	32	23	53
131	Buchach	With. Pidzamochek	25	57	59	64	47
132	Gorishna Vygnanka	Chortkiv district	35	27	21	42	50
133	Kremenets	st. Osovitsa, 12	30	30	32	23	43
134	Lozovaya	Ternopil district	65	25	39	23	37
Kharkov region
135	Raisin	st. Krutaya, 56	60	26	39	25	43
136	Kharkiv	st. Derevianko, 1a	60	31	35	48	58
137	Kupyansk	st. Lenina, 87	50	53	37	57	58
138	Lozovaya	st. Cooperative, 53A	50	31	55	56	59
139	Kegichevka	st. Kirova, 81	60	28	39	21	40
140	Great Burluk	st. Decorative, 4	35	31	44	49	52
Kherson region
141	Chaplinka	st. Lenina, 1	35	27	38	37	33
142	Genichesk	st. Lenina, 87-V	30	33	31	35	27
143	Kherson	st. Perekopskaya, 5	55	34	58	39	44
144	Novotroitskoe	st. Bezrodnogo, 116a	30	48	38	28	21
145	Nizhnye Serogozy	st. Shchorsa, 13	30	52	38	37	39
146	Vasilyevka	Kakhovsky district	65	29	41	57	36
Khmelnitsky region
147	Belogorye	Belogorsky district	30	47	48	51	34
148	Khmelnitsky	Prospect Mira, 43	65	22	29	51	50
149	Kulchievtsy	Kamenets-Podilsky district	65	22	29	51	44
150	Full	st. Lesi Ukrainki, 5A	45	49	42	51	58
Cherkasy region
151	Kamenka	st. Lenina, 1A	30	31	34	35	30
152	Beeches	Mankovsky district	50	62	61	29	37
153	Cherkasy	st. Palehi, 2	65	48	28	21	53
154	Kanev	st. Kyiv, 27	35	58	28	21	38
155	Korsun-Shevchenkovsky	st. Martsenyuka, 1a	30	41	43	50	39
156	Satanovka	Monastyrischensky district	35	40	30	29	42
157	Polyanetskoe	Uman district	35	39	52	29	47
158	Shpola	st. 40th anniversary of Victory, 11-a	35	48	49	50	47
Chernivtsi region
159	Chernivtsi	st. Biletskaya, 6	45	43	49	59	40
160	Novodnistrovsk	block 27, building. 5	60	60	34	64	25
Chernihiv region
161	Tinitsa	Bakhmatsky district	55	39	49	43	51
162	Bobrovitsa	st. Dzerzhinsky, 113	35	33	28	23	59
163	Chernigov	st. Komsomolskaya, 53B	60	22	34	35	61
164	Hills	Koryukivsky district	65	22	49	54	61
165	Nizhyn	lane Urozhainy, 8a	30	38	40	43	36
166	Bileshchyna	Prilutsky district	60	52	27	56	32

How to choose the right one

When choosing an amplifier, the TV owner needs to consider the following parameters:

Required gain range. The device can separately amplify UHF and HF (this is useful if there are local stations transmitting analogue television signals in this range), can be broadband, that is, working with several ranges (however, losses in reception quality are inevitable: universal amplifiers are always worse than highly specialized ones) , or can be multi-band with several amplification blocks for each frequency range.
Device type. The amplifier can be built-in (that is, a structural part of the active antenna) or external, connected to the cable.
Type of food. Voltage can be supplied to the amplifier either via a coaxial feeder cable or directly from an external power supply. “Cable” devices are more compact, but amplifiers with separate power supply are more powerful.

CIFAR-10

Antenna for phone or signal booster for smartphone

Test accuracy (%) of SGD and SWA on CIFAR-10 for different training budgets.

DNN (Budget)	SGD	SWA 1 Budget	SWA 1.25 Budgets	SWA 1.5 Budgets
VGG16 (200)	93.25 ± 0.16	93.59 ± 0.16	93.70 ± 0.22	93.64 ± 0.18
PreResNet110 (150)	95.03 ± 0.05	95.51 ± 0.10	95.65 ± 0.03	95.82 ± 0.03
PreResNet164 (150)	95.28 ± 0.10	95.56 ± 0.11	95.77 ± 0.04	95.83 ± 0.03
WideResNet28x10 (200)	96.18 ± 0.11	96.45 ± 0.11	96.64 ± 0.08	96.79 ± 0.05

Check the result using a multimeter

Once the circuit has been designed and connected, it makes sense to test it and check the characteristics of the resulting design. To do this, you need to have a tester - a multimeter or any other similar device.

Check the following settings:

The characteristic impedance of the cable should not exceed 75 Ohms.
The difference between the braid of the coaxial cable and the central core should be several tens of ohms. If the device shows “0”, it means there is a break or short circuit.
When connecting the central core and braid, the device should show infinity, that is, the maximum of the scale. But if both the braid and the core are disconnected from the antenna and shorted to each other, the result should be zero.

Track list

Antenna for car radio

Words and music written by Dmitry Revyakin (except as noted)

№	Name	Duration
1.	"All right"	3:22
2.	“Dreams (How grateful I am to you)”	4:06
3.	"Over the Edge"	5:47
4.	"Stars of Netanya"	5:16
5.	"Horse-Fire"	3:38
6.	"Only for You" (16th-century Florentine ballad)	4:18
7.	"Katun"	8:07
8.	“Pooh (How I looked after you)”	4:26
9.	"Selena"	4:30
10.	“How I wanted to (Hurt you)”	6:26
11.	"Where Am I"	4:46
12.	"Lara"	5:53
13.	"Milk Harvest"	5:04
14.	"Kamchatka"	5:12
1:10:51

Bonus disc
№	Name	Label/Recording location	Duration
1.	"Lara"	Novosibirsk	4:50
2.	"Over the Edge"	Novosibirsk	5:33
3.	"Only for You" (16th-century Florentine ballad)	Novosibirsk	4:37
4.	"Kamchatka" (guitar version of the song)	Real Records	5:19
5.	"Stars of Netanya"	SNC	5:17
6.	"Pooh"	SNC	4:24
7.	"Only for You" (16th-century Florentine ballad)	SNC	4:21
8.	"All right"	SNC	3:12
9.	"Lara"	SNC	5:17
10.	"Horse-Fire"	SNC	3:34
11.	"Selena"	SNC	4:35
12.	"Lara"	Siberia	4:44
55:43

Wiring of the built-in amplifier SWA

A passive antenna can be amplified by installing an SWA card on it. The most delicate place in this process is the wiring of contacts. The video shows the entire process from choosing an amplifier to its correct installation. Just follow the recommendations and success is inevitable.

If your antenna with an amplifier does not stably receive a DVB-T2 digital television signal, then often the problem is not that the amplifier is weak, but that it is not needed there at all. Yes, yes, after the advent of digital terrestrial television, the situation with signal reception has changed a lot in some respects and in many cases, the amplifier in the antenna simply becomes unnecessary, moreover, it becomes the cause of an unstable and sometimes completely absent signal.

I have already written about the cause of this phenomenon and methods of combating it here, so I will not repeat myself and will not explain why the alteration is needed, which I want to talk about in this note. Namely, how to convert the amplifier for the “Polish” antenna into a matching board.

What will you need for this? Actually the amplifier itself, maybe even a faulty one, a 3 centimeter piece of wire and a soldering iron. Task: Make a matching board from the amplifier board, which is not always available in stores.

Antenna assembly

Let's remove the insulation from a piece of wire one meter long.

I got a wire with a diameter of 4.5mm

The tools you will need are a vice and a hammer. Measure approximately 11cm each and bend at an angle of 90°

The end result is to get such a “geometric” figure

We cut off the excess and solder the ends. It should look something like this...

Solder the cable as shown in the photo.

We lay the cable along one side of the square and secure it with clamps. This arrangement of the cable is necessary for its coordination (there are different opinions, not everyone agrees with this statement).

When using a reflector, the antenna sheet at the extreme points of the squares can also be secured using metal stands, for example, soldered onto the remains of the same copper wire - there are points with zero potential (highlighted in green). In other places, fastening is allowed only through a dielectric.

CIFAR-100

Test accuracy (%) of SGD and SWA on CIFAR-100 for different training budgets. For each model the Budget is defined as the number of epochs required to train the model with the conventional SGD procedure.

DNN (Budget)	SGD	SWA 1 Budget	SWA 1.25 Budgets	SWA 1.5 Budgets
VGG16 (200)	72.55 ± 0.10	73.91 ± 0.12	74.17 ± 0.15	74.27 ± 0.25
PreResNet110 (150)	76.77 ± 0.38	78.75 ± 0.16	78.91 ± 0.29	79.10 ± 0.21
PreResNet164 (150)	78.49 ± 0.36	79.77 ± 0.17	80.18 ± 0.23	80.35 ± 0.16
WideResNet28x10 (200)	80.82 ± 0.23	81.46 ± 0.23	81.91 ± 0.27	82.15 ± 0.27

Below we show the convergence plot for SWA and SGD with PreResNet164 on CIFAR-100 and the corresponding learning rates. The dashed line illustrates the accuracy of individual models averaged by SWA.

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Examples

To reproduce the results from the paper run (we use same parameters for both CIFAR-10 and CIFAR-100 except for PreResNet):

#VGG16 python3 train.py —dir=

—dataset=CIFAR100 —data_path=—model=VGG16 —epochs=200 —lr_init=0.05 —wd=5e-4 # SGD python3 train.py —dir= —dataset=CIFAR100 —data_path=—model=VGG16 —epochs=300 — lr_init=0.05 —wd=5e-4 —swa —swa_start=161 —swa_lr=0.01 # SWA 1.5 Budgets #PreResNet python3 train.py —dir= —dataset=CIFAR100 —data_path=—model= —epochs=150 —lr_init=0.1 —wd=3e-4 # SGD #CIFAR100 python3 train.py —dir= —dataset=CIFAR100 —data_path=—model= —epochs=225 —lr_init=0.1 —wd=3e-4 —swa —swa_start=126 —swa_lr= 0.05 # SWA 1.5 Budgets #CIFAR10 python3 train.py —dir= —dataset=CIFAR10 —data_path=—model= —epochs=225 —lr_init=0.1 —wd=3e-4 —swa —swa_start=126 —swa_lr=0.01 # SWA 1.5 Budgets #WideResNet28x10 python3 train.py —dir= —dataset=CIFAR100 —data_path=—model=WideResNet28x10 —epochs=200 —lr_init=0.1 —wd=5e-4 # SGD python3 train.py —dir= —dataset=CIFAR100 — data_path=—model=WideResNet28x10 —epochs=300 —lr_init=0.1 —wd=5e-4 —swa —swa_start=161 —swa_lr=0.05 # SWA 1.5 Budgets

About the album

Name

About the title of the album, Dmitry Revyakin says that “Sva” is an ancient fire-forming root, which translated from Sanskrit means “ego”, “essence”; it is found in many Russian words (“matchmaker”, “wedding”, “bungle”). According to Vasmer's etymological dictionary, the ancient Indian “svayarm” means “oneself”, “svas” means “own”.

Song titles

The titles of the songs on the album are written in runes of the Gothic language, which is dead today, into which the texts of the Holy Scriptures were translated already in the 4th century (see Gothic Bible). Revyakin, describing the album, mentioned a legend according to which God allegedly gave this language to Adam in Paradise.

Theme and sound

The album continues the traditions of the group that have developed over 20 years, however, compared to previous records, the album places more emphasis on lyrics and ballads. The songs included in the album were written in 1996-2002 and are dedicated to Dmitry’s late wife Olga, his youthful memories, relationships between men and women in general, and other lyrical themes. Novelty in sound - the appearance of keyboard instruments and computer effects.

Types of publication

The album was published in two versions: regular and gift. The latter is equipped with a booklet with song lyrics and an additional bonus CD, which includes songs from the main CD, previously recorded in different studios.